Re: [Elecraft] re UP Down features on mic

2008-03-14 Thread Brett Howard
Not sure off the top of the head but I'm sure that if you pull up a  
schematic for a kenwood mic you'd get the answer.  I do know that that  
is not yet implemented in the firmware.  I remember Wayne mentioning  
that a while back and haven't seen it added in any of the recent  
release notes.


Quoting Fern Rivard [EMAIL PROTECTED]:

   Can anyone please enlighten me on whether the UP and Down feature  
 on the microphone connect work against ground or +8 volts dc.



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Re: [Elecraft] K3 AF PA

2008-03-14 Thread Brett Howard
2.5 Watts into 4 ohms if you're willing to put up with 10% THD.  Figure
2 watts into 4 ohms.


On Fri, 2008-03-14 at 20:41 -0700, Bob W9RFS wrote:

 Does anyone know how many watts the audio amp is that feeds the speaker
 output connector?
 Thanks!
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Re: [Elecraft] [K2] : Laptop UPS

2008-03-17 Thread Brett Howard
Actually the purchaser does have the ability to decide on the importance
of the EMI signature.  Many of the laptop products only have to stand up
to the A standard.  Where as some companies have tougher requirements
and require things to stand up to a higher standard.  

I work for a company that designs bar code scanners.  My company is the
ONLY organization of them all in the production of large fixed
installation scanners that requires our products to pass the B standards
rather than class A.  (Essentially the class B standards require that
you are about 10dB below the class A standards).  Not to mention the
fact that we require that we pass with at least 3dB of margin so
technically we require our products to be 13dB better than we really
have to be.  

Not to mention the rest of the testing that we do on our products.  In
the large supermarket fixed installation scanners we actually slam a 30
pound bag of lead shot directly onto the scanner from 2 feet.  We call
this the Turkey Drop test.  We also hit the products with 25,000 volts
ESD discharges and require that this causes zero failures while the
industry standard is 15KV. 

Anyway the point of the whole thing is that we are the manufacturer and
designers of the scanner.  We purchase power supplies from Chinese
manufacturers and we as the purchaser mandate the requirements of the
supply.  If we did not there would be no way that we could stand up to
our own standards.  Honestly I've personally not run much in the way of
testing on the laptop power supplies but I do know that we run switchers
to power our products.  Mainly because we need to be able to support the
use of our product worldwide but also because California is now
outlawing the use of unregulated transformer based linear supplies in
new products.  Maybe next time I'm at the lab if I have some free time
I'll run some tests on my dell power supply.  Honestly I have used my
laptop as a host before and have found that with only some very minor
mods my Latitude D610 can be made to pass class B.  I only had to add a
few pf's of capacitance here and there and it works great.  But that
doesn't mean that I don't still slap ferrites on all of the cables to
and from our product that I'm allowed! :)  We'll see if I end up with
some free time... Although at $350 an our for lab time you tend to get
very good use of the time! ;)


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Re: [Elecraft] KPA3 for QRP

2008-03-17 Thread Brett Howard
From my understanding of it the radio has the KPA3 switched out of the
loop until you cross the 12W mark.  Then it starts actually putting it
into the signal path.  Until you crank the power up beyond 12Watts the
KPA3 is nothing more than an added current drain.  But if you turn
things up to 12 or 13 watts you're probably still quite fine with those
levels for RFIing yourself and the rest of the house / neighborhood and
your KPA3 will have TONS of headroom for you in that configuration.  Yet
as far as the low power amp its still probably still rated at the same
100% duty cycle at full power for 10 minutes.  I say probably because
the only technical spec listed is that it will handle 100 watts for 10
minutes easily on the web site and in the manual.  I'd imagine that
similar margins are used on both PA's being that both are designed to
have a 20% overhead which is more than you get from Yaecomwood out of
the gate!  

One big advantage is that getting the KPA3 now is a smart investment as
it is probably only going to go up in price and you have a great
advantage with the current exchange rate as it is.  Not to mention that
if you were ever to want to sell your K3 the fact that a KPA3 is already
installed makes it much more attractive to many more people.  My motto
has always been its better to have than to want. ;)


On Mon, 2008-03-17 at 02:55 -0700, G4ILO wrote:
 I run QRP out of practical necessity. I'm forced to use attic antennas and I
 don't wish to induce more RF into the domestic electrical equipment (or me,
 for that matter) than I absolutely have to.
 
 Nevertheless, I'm thinking about getting a KPA3, because it probably will
 never be cheaper than it is now, and the occasion might arise in future when
 I might be able to use it.
 
 I'm just wondering if there are any advantages to using the PA when running
 QRP. As I understand it, the PA is switched out of circuit until you dial
 the power above 10W, just as in the K2. There is no option for class A
 operation at a lower power level to produce a cleaner signal. If I run 10W
 of FM, the QRP PA will do all the work, and warm up very quickly, instead of
 letting the KPA3 do most of the work and barely getting warm. If I run 5W of
 PSK31, the IMD generated by the low power PA running at half its rated power
 will be higher than the KPA3 loafing along at the same power level.
 
 Unless I'm missing something, there would be no benefit to me at the moment
 from having the KPA3 unless I want to wind the power control above 10W. Am I
 right?
 
 -
 Julian, G4ILO  K3 s/n: 222 K2 s/n: 392
 G4ILO's Shack: www.g4ilo.com
 Zerobeat Ham Forums: www.zerobeat.net/smf

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Re: [Elecraft] [K2] : Laptop UPS

2008-03-17 Thread Brett Howard
It makes no RFI at all that bothers you in your situation.  The only
product that produces no RFI at all is the pet rock.  Its all just a
matter of degree.


On Mon, 2008-03-17 at 02:37 -0700, G4ILO wrote:
 It is a very high quality product and creates no RFI at
 all.
 

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RE: [Elecraft] [K2] : Laptop UPS

2008-03-17 Thread Brett Howard
Yea the ones that qualify have to say Efficiency Level IV on it (or
something like that).  Essentially some European group did a study and
stated that if you took the passive load of all the unregulated bricks that
are in Europe it would total up to one power plant or something like that...
I wasn't paying too close of attention as I usually just splat down the same
supply that I used prior unless I can find something cheaper.  In which case
I usually follow the app note and the demo board and all is well...  As for
the brick its just one more requirement that I have to make sure we get
taken care of and that we get the brick labeled properly for all the
regulatory garbage... :)  But yes California heard about this and was like
wow if we get rid of all those passive loads from bricks that are plugged
into products that are turned off we'll save all sorts of money.  That and
the power system in CA already seems a bit fragile at times  Works for
me... Oregon makes quite a bit of money selling power to you guys!! :)

-Original Message-
From: Vic K2VCO [mailto:[EMAIL PROTECTED] 
Sent: Monday, March 17, 2008 7:41 AM
To: Brett Howard
Cc: Elecraft Users
Subject: Re: [Elecraft] [K2] : Laptop UPS

Brett Howard wrote:

  California is now
 outlawing the use of unregulated transformer based linear supplies in
 new products.  

Oh, great.

Although as you point out it is possible to make a quiet switcher, it's 
also cheaper to make one that will wipe out everything for a 100-yard 
radius.  Let me tell you about this high-intensity lamp that I 
have...actually, it does have some value; it can be used as a noise 
generator to align the filters in my K2.

Now *every* piece of electrical junk will have one!
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco

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RE: [Elecraft] [K2] : Laptop UPS

2008-03-17 Thread Brett Howard

The only product that produces no RFI at all is the pet rock.
Even rock has a radiation signature..
BTW - If you are worried about radiation, don't do a walking tour of 
Edinburgh, Scotland...  Granite is 'radio' active


Noted! ;)

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RE: [Elecraft] K3 power cable

2008-03-17 Thread Brett Howard
Don't worry about doing both...  It leaves you that much more sure that you
won't lose connection and trust me... The electrons will forgive your soul
for doing both! :)

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike B
Sent: Monday, March 17, 2008 10:34 AM
To: Elecraft Reflector
Subject: Re: [Elecraft] K3 power cable

 You either crimp or Solder - not both

While it may be easy to prove that doing both is redundant, I see no reason
why 
one *can't* do both, provided you crimp before soldering.  I find it rather
odd 
to make such a firm distinction.

If I'm planning ahead and remember to bring the crimpers home from work,
I'll 
typically just crimp.  Otherwise, I just solder.  Sometimes, though, I'll
get 
picky and do both, such as on lines that will be carrying a fair bit of
power.

73,

Mike
KW1ND

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RE: [Elecraft] KPA3 for QRP

2008-03-17 Thread Brett Howard
 People talk about the extra current drain.  How much is it?

If you go by what W0CZ measured you get this:

The current tests before I put in the KPA3.
Receive 0.94 to 1.1 A
TX (NO POWER) 1.56 A
TX 5W 2.56 A
TX 10W 3.07 A
TX 12W 3.23 A

The same test after the KPA3 was installed, Set up and working fine.
Receive 0.94 to 1.1 A
TX (NO POWER 2.16 A
TX 5W 3.10 A
TX 10W 3.62 A
TX 12W 3.78 A


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Re: [Elecraft] K3 AF PA

2008-03-19 Thread Brett Howard
Upon further review of what I sent you earlier I have to disagree with
myself.  I'm certain that any sort of reduced bandwidth should have
nothing to do with the test as I'm assuming they took the measurement at
1Khz.  I know that the spec was take this way but have no way of knowing
how the ARRL performs this test.  I'm near certain that they don't
inject a signal at the input of the audio amplifier which is what
National did.  

Perhaps the ARRL injects a transmitted signal with a 1khz tone in it and
they then measure that.  Added distortion could and would be added by
the transmitter and as well the receive circuitry.  Even if they simply
injected a signal into the antenna jack.  I guess the purest test that I
can think of off the top of my head would be to use the microphone
feedback feature (the one that is used to listen to your transmit audio)
and then to fee the 1khz signal into the microphone or line level input
and then monitor the power out on the speaker jack.  Its possible that
this was done but I doubt it as it would not be repeatable on all radios
that they test.  That is the wonderful thing about test data when there
isn't a specification of how the test is run readily available.  (or at
least I don't know of where to find this specification).  

Furthermore there is a possibility that the stage before the audio
amplifier is clipping before reaching the rails of the audio amplifier.
In other words its possible that the previous stage reaches 10% THD and
the amplifier is only putting out the 2.5ish watts when that occurs.
Truth is that without having the test in hand and being able to take the
measurements myself I won't be able to really know where the difference
comes from.  

But honestly 2.5 watts should be enough to make you want to leave the
room with most efficient speakers (ESPECIALLY AT 10% THD!!!) :)  If this
power level is a problem for you its certainly enough drive to run a
small outboard amp or to run a powered set of speakers.  Just make sure
that the amplifier you choose can handle being in an RF environment.
Also you may want to ensure that the amp doesn't become a producer or RF
either.  Anyway that's my two cents on the topic and I'm sticking to
it (for now) ;)

~Brett (KC7OTG)


On Tue, 2008-03-18 at 23:11 -0700, Bob W9RFS wrote:
 I did a little more reseach and found the power amp for the speaker output in
 the k3 schematics. The device is a LM4950TS. Here's a link:
 http://www.national.com/pf/LM/LM4950.html#Datasheet  
 Looks like 3.1 watts into four ohms with less than 1% THD. Is this correct
 or am I missinterpreting the specs? Thanks,
 
 
 Brett Howard wrote:
  
  2.5 Watts into 4 ohms if you're willing to put up with 10% THD.  Figure
  2 watts into 4 ohms.
  
  
  On Fri, 2008-03-14 at 20:41 -0700, Bob W9RFS wrote:
  
  Does anyone know how many watts the audio amp is that feeds the speaker
  output connector?
  Thanks!
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Re: [Elecraft] New Contest Transceiver

2008-03-19 Thread Brett Howard
Yea but probably 70% of hams are either dead and not logged yet or
inactive.  Then you've got 20% that does casual operation and contesting
and then you've got the 10% in the middle that complain about the
contests.  Yet still the majority of the people on the air I fully well
believe participate a bit in the contests.  Heck I've spent HOURS
calling CQ at the calling frequencies at 7 watts and had no call backs.
At times its just nice when there is a contest and I can call someone
and get a quick test of things... 


On Wed, 2008-03-19 at 13:16 -0600, Gary D Krause wrote:
 I saw a recent 
 ARRL poll that indicated that only about 20% of the ham population
 contest, if 
 I remember correctly.

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Re: [Elecraft] [K3] max input voltage on Ant 1 or 2

2008-03-19 Thread Brett Howard
I had a gen that would give me 1mV and I found that it produced a signal
that was so wide there was no way to accurately zero up on it.  But if I
turned the output of my generator off I found that there was enough
cross talk across the output relay to generate a lot of signal into the
radio.  So its quite possible that you can pull this off.  Or if all
else fails just put a terminator on your generator and run a cable out
of it (just a single wire).  then you can run a wire into the rig and
you can then couple these wires more or less to vary the amount of
signal that you want/need.


On Wed, 2008-03-19 at 23:10 +, David Ferrington, M0XDF wrote:
 I can't find this in the spec although I expect its there
 what is the max input voltage on Ant 1  2?
 I have a ref osc that gives 5MHz at ~ 5mV, I'd like to use this to do  
 a ref cal by direct connection to ant 1 or 2

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Re: [Elecraft] OT: Bose QC Mic Modification

2008-03-22 Thread Brett Howard
I used to work in the audio industry.  Was working for a higher end
amplifier manufacturer.  We always thought that BOSE actually stood for
Bring Other Sound Equipment.  It was also often said No highs no lows
it must be Bose.  Honestly though some of their professional line of
amps were quite well made and designed but that was because they farmed
those out to us 100% we designed and manufactured them for them.  

A great set of headphones for anyone who wants external noise isolation
and wants good quality audio is the Etymotic ER-4P.  I have a pair of
these and have gone to an audiologist to have custom ear molds taken and
had earpieces made by Westone.  Westone makes hearing aids and makes for
a wonderful addition to the Etymotic headphones.  I can wear these
headphones all day at work and not have even the slightest bit of
fatigue.  The ER4P's are probably the most transparent audio
reproduction system I've ever heard.  I've not spent large periods of
time using these headphones during a contest but I can assure you all
that they are completely flat and un-coloring when listening to music.
I can't see how they'd be anything less than stellar when listening to
the airwaves.  

Furthermore I can assure you that you'll never find any sort of active
noise canceling that will do as good of a job at external noise
reduction than the stock ear pieces that come with the ER-4P's.  I have
used them for a while during a field day and there is NO hearing the
generators in the distance!  This is crucial in gaining maximum dynamic
range when it comes to the AF range.  Also if you go to the Etymotic
website and see the price don't be too put off by that as they can be
found MUCH cheaper on the web!


On Sat, 2008-03-22 at 10:36 +, David Ferrington, M0XDF wrote:
 Yuk - not pretty - but I guess it works.
 NOTE - that was the QC1 - thge QC2 has slightly different fittings
 
 But, what a thing to do to a £370 pair of headphones!
 
 I use mine while practicing my Morse and plan on using them when I  
 actually start CW QSOs.
 
 The K2 Proset headset works very well and does cut out a lot of  
 ambient noise.
 

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Re: [Elecraft] KX1 - U9 - 77L06 - outputing 8.03 Volts...

2008-03-22 Thread Brett Howard
I'd be careful there... I've not built a KX1 yet (but plan to) anyway I
just figured I'd take a look at the schematics to see if there was any
way to help you out and keep you going on your build.  Anyway the NE602
that is on the board specs 8.0V as its MAX Vin.  Seems to me like you
have a problem with your 6V regulator.  If you had a bench supply you
could remove the regulator and then hook a bench supply in there once
setting it to 6V and could continue on the build.  But unless you have
that I'd recommend simply removing U9 and getting ready to put in a new
one.

Sorry. 

I'm sure Elecraft will take care of you in short order but you may also
be able to find a part as common as that locally pretty quick.  Perhaps
even on the weekend.  Its worth a try at least. 

Good luck sir.

~Brett (KC7OTG)  Hope to hear you on the air soon!


On Sat, 2008-03-22 at 12:11 +, Nicolas Pike wrote:
 Hi,
 
 KX1 Build
 I have got up to the test of U3 voltage (Page 28), and pin 6 is at 8.03 
 volts.. It should be 6! I have triple checked everything so far which all 
 appears to be in order.
 As I am away from home at the moment I am building the KX1 on a small table 
 and hence lack any more test equipment than a multimeter. Is 77L06 (U9) 
 likley to be fried? Is there anything else I should be checking?
 Any suggestions appreciated as my planned /P building attempt has now ground 
 to a halt, and it would be great to be able to build some more!
 
 Please reply to [EMAIL PROTECTED] as I only get the daily digest.
 
 Thanks
 
 Regards
 Nicolas
 www.m1hog.com 
 
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Re: [Elecraft] K3: using vox as PTT for digital modes

2008-03-22 Thread Brett Howard
I'd rather not see this on the todo list.  I feel the PTT on the DB9 is
more than ample and will prevent many others from sending many windows
sounds over the air.  Most software will key a rig over CAT commands and
this is the way this should be done.


On Sat, 2008-03-22 at 20:52 -0700, Wim Dewilder wrote:
 Hi
 
 I tried using VOX as the PTT for digital soundcard modes but that
 doesn't seem to work. That would be a neat feature addition as I do have a 
 second soundcard
 in the PC dedicated for HAM digital modes, so no windows sound will trip the 
 VOX.
 I was using a signalink SL1+ before that basically activated PTT when 
 detecting audio out of the PC.
 So Wayne please add it to the todo list ;-)
 
 73 de K6TE Wim


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Re: [Elecraft] OT: Bose QC Mic Modification

2008-03-23 Thread Brett Howard
250 is pretty cheap.  I paid more than that when you add up what I paid
for the ER4P's and the molds separately.  Yet still in pretty much all
of the monitors I've listened to the Etymotics are about as antiseptic
as I've found.  I'm a big fan of a very clean very flat response and the
ety's are quite amazing at producing that.  Many feel that if there
isn't a 3 to 6 (or sometimes more) hump in the bottom end they aren't
bassy enough but to each his own.  

Anyway one other comment is that if you go the route of custom ear molds
you won't get as much isolation as you would with the stock ety ear
pieces.  I've seen this in the numbers but I've also experienced it.
I'm not so sure that the foam molds produce the isolation that they
claim but I do attest to the fact that the 3 flange silicon tips do a
better job than custom molds.  Etymotic claims 35dB of isolation with
the silicon tips and 42dB of isolation from outside noise with the foam
tips.  Wish anyone luck pulling that off with active noise
cancellation!  


On Sat, 2008-03-22 at 21:14 -0700, AE4CW wrote:
 I second Brett's comments re the use of custom fitted in-ear monitors
 (IEMs)
 for great isolation and sonic clarity.  Properly fitted, they are very
 comfortable, provide about 25 dB of external isolation and you hear
 exactly
 what your receiver is producing.  
 
 I do live sound monitor engineering on a weekly basis and have used a
 variety of low, mid and high-end IEMs ($60-$500+) over the years.  The
 best
 price/performance I've found so far is the Live Wires IEMs.  They are
 not
 cheap ($249) but for the money (IMHO) there is nothing better.  You
 can
 check them out here:
 http://www.livewiresforyou.com/index.php Live Wires Site 

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[Elecraft] Linux Spectrogram

2008-03-23 Thread Brett Howard
Anyone know of a good spectrogram application for Linux.  Preferably
free but that usually goes without saying in Linux.  I'm interested in
finding something that will show filter shapes and give actual amplitude
values.  I know I can get part of the way there by using waterfalls but
that is not quite what I'm looking for

Thanks...  

~Brett (KC7OTG)

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RE: [Elecraft] OT: Bose QC Mic Modification

2008-03-23 Thread Brett Howard
I'm no where near as pleased with the ER6's as I am the 4's.  The 6's
are a lot bigger and a bit cumbersome and no one that I know of will
make a full ear mold of them.  

As far as the mic I use a Heil GM4 and a Heil Boom.  


On Sun, 2008-03-23 at 12:07 -0400, Joe Subich, W4TV wrote:
  250 is pretty cheap.  I paid more than that when you add up 
  what I paid for the ER4P's and the molds separately.  Yet 
  still in pretty much all of the monitors I've listened to the 
  Etymotics are about as antiseptic as I've found. 
 
 The performance ratings of the ER6P is only slightly lower 
 than the ER4P, isolation is similar and they can be found 
 for $80 at many places on the web.  If you want maximum sound 
 isolation, choose the ER6i (it has the three flange tips vs. 
 2 flange tips with the ER4P and ER6P).  
 
 The only problem with the ER4/ER6 is there is no place for 
 the (headset) mic G. 
 
 73, 
 
... Joe, W4TV 
  


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Re: [Elecraft] OT: Bose QC Mic Modification

2008-03-23 Thread Brett Howard
A decent pair of relatively inexpensive full size cans would be the
Sennheiser HD201.  You'd probably be pretty happy with these.
Especially for communications use and you'll be able to get them for
under your $50 budget afer shipping.

On Sun, 2008-03-23 at 18:47 -0600, DW Holtman wrote:
 Hello,
 
 The high range of my hearing is greatly attenuated from too many years 
 working on Flight decks and around jet engines. So I have no need for a pair 
 of high performance $250.00 headphones. But, I'm looking for a new set. Does 
 anyone have any recommendations for a full size pair in the $50.00 range?
 
 Best,
 DW Holtmen
 WB7SSN


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[Elecraft] K3 SMD Size

2008-03-28 Thread Brett Howard
What is the general average size of the passives on the K3 boards?  Are
we talking 0402, 0603 or 0805 for the most part?  Are there any BGA
components?  

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RE: [Elecraft] K3 board - lack of modification version control

2008-03-28 Thread Brett Howard
It says right there on the site that all Rev B boards have the update.  Read
the rev of your board and that is your version control.  What more do you
really want?

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dave G4AON
Sent: Friday, March 28, 2008 2:15 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 board - lack of modification version control

Mike

Would you care to elaborate?

In the past when I worked for one of the large European manufacturers 
they had very strict version control, when a change was implemented the 
updated version number was written in black marker on the board, with 
the board number followed by /01, etc. In the case of military kit, or 
kit that may be used by the military, there had to be a mod state 
plate on the outside of the equipment too.

I received a replacement PA and driver board from Elecraft and there was 
no way to distinguish the updated driver board from the earlier one! The 
PA was easy as it had two resistors in parallel in place of the single 
ones at (I guess) R4  R5... But no markings that were obvious to me.

73 Dave, G4AON
--

They did.
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[Elecraft] K3's arriving

2008-03-30 Thread Brett Howard
Boy the lack of K3's arriving has been sudden.  The last arrival notice
I've seen and added to the spreadsheet is serial no 615 on 3/20.  Anyone
get one more recently than that?


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RE: [Elecraft] K3 power supply question

2008-03-31 Thread Brett Howard
Whats the recommended tool for this.  I'm going to buy a tool once and
I'm willing to pay the funds for a good one but would like to know a
good reputable source to find the tool that will give a good price.  I'd
like the tool to be specifically (first use) for building my K3 so
that's the main goal.  Then I'm sure that some day I'll convert
everything to APP but right now I'm too busy do to pretty much anything
but work sleep and homework.  

Brett (KC7OTG)


On Mon, 2008-03-31 at 11:14 -0700, Dick Dievendorff wrote:
 The K3 kit comes with a power cable and a pair of Anderson PowerPole
 connectors.
 
 You may crimp them (an appropriate tool is recommended) or they may be
 soldered if you wish.
 
 73 de Dick, K6KR
 


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Re: [Elecraft] K1 comments?

2008-04-01 Thread Brett Howard
I love my K1.  Was a kick in the pants to build.  I found that using
emery cloth to strip the insulation off the torroids was a help as it
allowed me to get things very clean with out doing the heat strip method
which didn't work too well for me.  I've made quite a few contacts using
a fanned dipole in a couple trees around the house.  I usually get into
at least the 20 meter Elecraft CW net weekly and if Tom (N0SS) is still
hanging around during the 40 meter net I usually get in to that one as
well. I love the memory keyer in it and just set the thing up to call CQ
and its usually not too long before I'm in QSO with someone.  

With my K1 and dipole I've worked Japan on 3 watts and was getting a
good report from Oregon.  The receiver is a pleasure to listen to!  I
also recommend the backlight mod.  I ended up taking mine back apart and
adding it after the fact and wish I'd just bought it from the get go.  I
also really like the antenna tuner that elecraft makes for it.  I find
the noise blanker useful (as I live in a very high noise area) it does
cut the noise back a few S units but its the least effective noise
blanker that I have in any of my radios.

~Brett


On Tue, 2008-04-01 at 11:34 -0400, [EMAIL PROTECTED] wrote:
 I recently received my first Elecraft kit  a K1.
 I don't see any postings relating to this rig.
 Every posting seems to be about the new K3 and sometimes the K2.
 Someone must be still interested in the K1 out there.
 Are there any comments on this radio . for instance;  how was it to build,
 is it fun to use, does it have a decent receiver, etc, etc.
 Please tell me something about your experience with your K1.
 
 Thanks ... Bud,  NY1Z
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Re: [Elecraft] Measuring performance of roofing filters

2008-04-02 Thread Brett Howard
Its not always that the data matches up with the experience.  I can show
you plenty of speakers with perfectly flat frequency response curves
that sound like complete crap.  Read about some of the information that
Sherwood has talked about in the collection of data and actual use of a
product.  At times many measurements just don't stack up to actual
use.  

I think your best bet is to decide what modes are important to you and
where you're going to be contesting and the like and then figure out
what it is that is going to be important to you.  

Personally I have a bad QRM problem in my area and don't have time to
make a loop antenna so I just switch in narrow filters to try and help
mitigate it.  The NB in my K1 doesn't do all that great on the noise but
it helps.  When this noise is present I find myself often operating
about about 250Hz.  So I got that filter.  During field day I like to
operate SSB as well so I got the 1.8Khz filter.  If you're going to be
doing SSB contesting and you want a slight advantage the 1.8Khz filter
should be on the list.  Then of course I'm going to be getting the
2.8Khz filter.  My two remaining slots remain to be chosen but I'll make
that decision after spending a few months with the radio.

If you want data such as you mention the best way to get it is to do it
yourself.  Then once you're done sell the filters you no longer want
before publishing it! ;)  j/k


On Wed, 2008-04-02 at 08:27 +0200, Arie Kleingeld PA3A wrote:
 All,
 
 Reading all info about the roofing filters...
 Many opinions but I still miss a few things here to decide on which
 roofing filters I'm going to buy.
 
 
 I'm a guy who likes to see the figures. (In the Lord we trust, others
 have to bring data...)
 
 Here's an idea.
 
 
 The following measurements for IMD would be nice.
 
 - Determine the dynamic range at 10 kHz with the 2.7 roofing filter
 switched in.
 
 - Decrease signal levels by 3 dB or 6 dB or so (that's up to the person
 that is measuring). The IMD-signal will then be well gone.
 
 - Then decrease the spacing of the signal frequencies until the IMD
 signals comes up again and write down the new spacing.
 
 - Put in more narrow roofing filter and decrease the spacing of the
 signals.
 
 - Determine at what new spacing the Intermod comes up.
 
 - Etc, do this for all roffing filters.
 
 
 So we get the following table as an exampe:
 
 Filter   spacing (kHz)  dynamic range
 
 2700   10  103 dB
 
 2700   3.2 97 dB (measuring the 103-6 = 97dB dynamic range
 spacing)
 
 2100   2.4 97 dB
 
 1800   2.0 97 dB
 
 Etc...
 
 Etc...
 
 
 So lets measure the spacing of the signals for a 97dB dynamic range
 instead of the other way around.
 
 If you really want to do this right, take several roofing filters of the
 same width and take several K3's.
 
 Cut the salestalk, bring me dat.
 
 It will sur help me out.
 
 
 
 Thanks in advance.
 
 Arie PA3A
 
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[Elecraft] More shipping information

2008-04-04 Thread Brett Howard
Based on the recent latest K3 shipping verification this is what things
look like...

First link is a graphic of what I've been posting.  The second graph is
the length of time waited with respect to the date that the unit
arrived.

http://www.livecomputers.com/web_pics/Serials.png
http://www.livecomputers.com/web_pics/wait_times.png




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Re: [Elecraft] ktcx03-1 and phase noise

2008-04-06 Thread Brett Howard
Yes I asked this question and [EMAIL PROTECTED] himself told me that this is
not going to result in an improvement of phase noise.


On Sun, 2008-04-06 at 11:01 +0100, David Woolley (E.L) wrote:
 Ken wrote:
 
  Am I right in thinking that the 1 ppm TCXO will have less phase
  jitter - hense lower phase noise?
 
 You cannot make deductions about phase noise from the presence of 
 temperature compensation.
 
 I believe this question came up before and that the TXCO has no phase 
 noise advantage.
 
 [ Very long line re-wrapped ]
 

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Re: [Elecraft] K3: PC boards - lead free?

2008-04-06 Thread Brett Howard
Well lets put it this way if you are in Europe and you buy an electronic
product its made with lead free solder unless its been on the shelf for
a good long while.  The EU recently mandated that all electronic devices
be free of the substances they consider hazardous and lead just so
happens to be one of them.  

Yes there are problems with tin whiskering and yes the solder is more
brittle and not very good when subject to flexing but this change
happened quite a while ago and many companies have been getting up to
speed on how to do this properly.  The worst devices when using this
lead free solder are the BGA's lets just be happy that there aren't any
of those in the K3.  Where I work we have to underfill our BGA devices.
Essentially we solder them down then we seep superglue in underneath the
part to help hold it onto the board.  In our drop tests we were breaking
balls and ending up with intermittent contact.  As most gentlemen know
having your balls broken is not a good experience! ;)  

Anyway tin whiskers are a problem but I have a feeling that most of
the K3 is somewhat larger components which helps.  But in most studies
this has not really been figured to be that much of a real issue in
industry.  Perhaps in really tiny stuff (half mil and below) but I have
a feeling that most of the K3 is going to be larger than that.  Maybe
some of the DSP's get down into that pitch size   

And as far as flexing... Don't bend the boards when you build the unit
and don't drop it and you shouldn't have to worry about that too much.
The chassis is designed around protecting the boards and isn't going to
be placing undue stress on them.  Granted leaded solder is better but
its a thing of the past.  Many companies are quite proficient at using
it and I'm certain that the house that Elecraft has stuffing their parts
has painstakingly gone over their solder profiles to maximize
reliability.  I know we have and that everyone in the industry was going
through it with us.  Granted there was a steep learning curve but
now-a-days most companies have this pretty well nailed down.  

No worries man!


On Sun, 2008-04-06 at 08:36 +0100, David Pratt wrote:
 Do the K3 PC boards use lead free solder?
 
 I have just read the rather disturbing article in last Thursday's 
 Guardian newspaper that highlights a potential problem with whiskers 
 developing on the solder as well as the solder being more brittle and 
 likely to fail if the boards are flexed.
 http://www.guardian.co.uk/technology/2008/apr/03/research.engineering
 
 There are evidently conferences currently being held to discuss the 
 problem to which Sun Microsystems and IBM are involved. This is worrying 
 reading and makes me wonder how long it will be before my K3 will fail.
 
 73

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Re: [Elecraft] Fwd: OT: tin whiskers videos

2008-04-06 Thread Brett Howard
Thats also in much different conditions than what you'll find in most
electronics.  But OK since NASA said so all electronic products from now
until eternity are destined to short themselves out and fail nasty
horrible deaths.  Oh no what shall we ever do!


On Sun, 2008-04-06 at 07:06 -0400, DOUGLAS ZWIEBEL wrote:
 I posted this back in Oct, 2007, but since the topic has come up
 again, well, here it is again.
 
 Of note is that in NASA video #10, it indicates that tin whiskers were
 found that were up to 1.8cm long (7/10th inch)...a long way from a
 few mils recently cited.
 
 de Doug KR2Q
 
 
 -- Forwarded message --
 From: DOUGLAS ZWIEBEL [EMAIL PROTECTED]
 Date: Sat, Oct 20, 2007 at 8:58 AM
 Subject: OT: tin whiskers videos
 To: elecraft@mailman.qth.net
 
 
 Although the NASA site was already cited by W8UR, I thought just in
  case anyone didn't navigate around the NASA page, that I would post
  the NASA video link.
 
  http://nepp.nasa.gov/whisker/video/index.html
 
  Video #10 is amazing (and narrated).  There is even one video (#3)
  showing tin whiskers on a 1960 Grundig radio.  Amazing.
 
  de Doug KR2Q
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Re: [Elecraft] K3: Synchronous Detection

2008-04-07 Thread Brett Howard
Yea its called the software release page.  If you want there are many
services that can send you an email when a certain website has
changed.  Then all you have to do is read the software release notes
and you'll know what is new.  You can do the same for the hardware
releases.

On Sun, Apr 6, 2008 at 11:56 PM, Shane White [EMAIL PROTECTED] wrote:

 Is there any way to be automatically notified of the K3's developments, such
 as the addition of synchronous detection?

 Thanks,
 Shane.
 --
 View this message in context: 
 http://www.nabble.com/K3%3A-Synchronous-Detection-tp16534680p16534680.html
 Sent from the Elecraft mailing list archive at Nabble.com.

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RE: [Elecraft] K3, 15 Pin Acc Cables - Commercially Made

2008-04-10 Thread Brett Howard
I'm quite pleased with the use of the connector.  It's a standard relatively
easy to find thing and gets the job done.  There are some that won't be
happy no matter what you do.  

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Charles Harpole
Sent: Thursday, April 10, 2008 11:37 AM
To: Timothy Raymer; elecraft@mailman.qth.net
Subject: RE: [Elecraft] K3, 15 Pin Acc Cables - Commercially Made


Another reason NOT to use the computer-use socket on a ham radio.  Tiny
wires, tiny pins, weak strain relief do I need

say any more.   Come on, designers:  remember your customers have normal
sized hands and weak eyesight!!!

73




Charles Harpole


[EMAIL PROTECTED]   





 Date: Thu, 10 Apr 2008 12:23:43 -0500
 From: [EMAIL PROTECTED]
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] K3, 15 Pin Acc Cables - Commercially Made
 
 Don,
 
 One caveat to this:  VGA cables are normally wired as a series of coaxial
cables.  So while you may have pin continuity, that continuity may be on a
shield of RG-174/U coax buried in the jacket of a larger cable.  
 
 I have found high density 15 pin connectors and soldered to them before.
It is not fun.  But in that application, it was the only way to get the
correct connections, the correct wire type, and so on, connected to the
device.
 
 Tim Raymer
 73 de KA0OUV
 K2 #1383
 
  Don Nesbitt [EMAIL PROTECTED] 04/10/2008 11:36 
 I've found two (2) ready made cables that may be of interest to K3
owners
 when using the ACC Socket.  The ACC socket is referred to on page 18 of my
 manual as AUX I/O with the caution that this is NOT a VGA video
connector!
 Well, it sure looks like a VGA connector but alas, no video output from
the
 K3 - shucks!
 
 For those who just don't want to fabricate a cable, most commercially
 available VGA cables do not include the #9 pin and for some that do, the
pin
 is not connected to anything. Poo!
 
 Fully connected commercial cables found!
 
 The first is a VGA Splitter Cable (Y cable) with one male and 2 female
 ends.  It is offered by Cables Unlimited (www.cablesunlimited.com) and is
 their part number PCM-2250.  Search this part number on their site.  It is
 listed on their site for $14.99.  All 15 pins are present and connected.
 
 This Y cable is carried by my local Microcenter (www.microcenter.com)
and
 is their part number 028126.  I bought it for $9.95.  You can see it at:
 

http://www.microcenter.com/search/search_results.phtml?keyword=028126submit

 .x=17submit.y=12
 
 The second cable is a Fully-Wired  Straight Thru, HD15MM cable with all
 15 pins present and connected.  The one I bought is a 3 foot Male to Male
 (although it is also available in other configurations) - no snickering!
 
 It is made by QVS (www.qvs.com) and is their part number CC388B-03.  You
can
 search this part number on their site.  I don't believe that QVS sells
 directly to consumers but you can probably find their products at most
 computer stores.
 
 Again, I found it at my local Microcenter.  It is their part number
810150.
 I bought it for $14.99.  You can see it at:
 

http://www.microcenter.com/search/search_results.phtml?keyword=810150submit

 .x=15submit.y=9
 
 I've checked each of these cables and they do indeed have all 15 pins
 connected - at least the one's I bought do (caveat filed just in case they
 change their manufacturing process)!
 
 I don't have any financial interest in any of the above and, as usual,
YMMV.
 '73 es gud dxing -- Don N4HH K3 #83
 
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RE: [Elecraft] ALC Setting was (Audio problem in WPX SSB)

2008-04-13 Thread Brett Howard
I agree that corresponding with the end of the ALC bracket makes sense.
I remember looking at the pictures of the radio after it was mentioned
that the 6th bar was overdrive and I was thinking it odd that the
overdrive point didn't correspond to the end of the ALC brackets.  My
Kenwood has a line that tells one where the ALC kicks in.  It just seems
like that type of operation makes intuitive sense where as the 5 bars
thing is something that one would have to read the manual/reflector to
know.  

On Sun, 2008-04-13 at 21:56 -0400, Joe Subich, W4TV wrote:
 Andy, 
 
Here is what happens:  For phone contesting, I my software 
  CQPWIN, which plays wav files for DVK usage (as do other 
  programs).  I run the output in such a way that when the dvk 
  is playing, the mic is shut off, but the audio from the computer 
  goes into the mic connector of the radio.  As soon as it stops 
  playing, it disconnects the computer and reconnects the 
  microphone.  I run it from the computer into a W2IHY iBox for 
  isolation, and the output to the radio.  The Mic is a Heil 
  pro-set.
 
 With the K3, the messages play fine, but after one finishes, 
  if I use the mic, the radio starts out at lower power and takes 
  2-4 seconds to build back up to high power.  This is the same 
  whether using the front or rear input and whether using high or 
  low gain. 
 
 After working in this quite a bit over the weekend the problem 
 is related to the K3 microphone AGC.  It appears that levels 
 from the microphone and DVK must be extremely well balanced - 
 much more closely balanced than with any other radio or the 
 stronger input will cause the microphone AGC to reduce the 
 mic gain and the weaker input will be much weaker.  The 2-4 
 second delay seems to be related to an extremely long ACG time 
 constant (probably intended to prevent the ACG from acting like 
 a clipper). 
 
 The problem is made worse - at least in my case - because the 
 ALC indicator provides only 5 very small, difficult to see, 
 bars for adjustment and the steps are rather course (6 dB 
 per division).  This means that the maximum spread between 
 the two inputs can be almost 12 dB (!) even when the display 
 only shows a slight flicker between the two adjacent bars 
 (e.g., the mic is barely triggering the 5th bar and the DVK 
 is hitting the sixth bar hard).  
 
 After some thought there are several ways (a combination of 
 all is best) to help the situation: 
 
 1) reduce the time constant (AGC hang) to about .5 second 
and dump any gain reduction when the PTT is released. 
 
 2) Use more of the ALC display to get better resolution. 
There are 12 bars in that part of the display but only 
six are used (with the sixth indicating overdrive).  At 
least expand the good range to seven (or eight) bars 
to coincide with the right edge of the ALC bracket. 
 
 3) Make the ALC display response logarithmic (like a VU 
meter).  Instead of 5 x 6 dB or 30 dB total ... the same 
total range could be displayed with the first bar = -20 dB, 
the second = -10 dB, the third = -7 dB, the fourth = -5 dB, 
the fifth = -3 dB, the sixth -1 dB, the seventh = 0 dB, 
the eighth +1 dB, the ninth +3 dB and the 10th +6 dB.  
Setting/matching levels would be MUCH easier.  It's no 
accident that professional recording and broadcasting have 
used similar scales for decades. 
 
 4) Give the ALC meter a dual mode display - showing both short 
duration peak and average (the current ALC) would help.  
Alternatively, any peak hold dot above the ALC region 
could show gain reduction by the mic AGC (and warn about 
overdriving the input). 
 
 5) Provide a set-up mode that disables mic AGC - this 
will allow balancing sources (either FP/RP/Line or 
multiple inputs on an external mixer) without chasing 
the effects of the mic AGC.  
 
 I understand there has been some work on the mic AGC in the 
 firmware currently in test and that may help.  However, this 
 area needs to be more user friendly.  As it is, I can see 
 significant issues when using the K3 in a multi-operator 
 setting where the relative levels need to be reset completely 
 for every operator change! 
 
 73, 
 
... Joe, W4TV 
  
 
 
 
  -Original Message-
  From: [EMAIL PROTECTED] 
  [mailto:[EMAIL PROTECTED] On Behalf Of Andy Faber
  Sent: Monday, April 07, 2008 12:08 AM
  To: [EMAIL PROTECTED]; wayne burdick
  Cc: elecraft@mailman.qth.net
  Subject: [Elecraft] Audio problem in WPX SSB
  
  
  Wayne,
A peculiar audio situation arose using my K3 in Aruba in 
  WPX SSB.  It 
  works the same way at home, and isn't a problem I've ever had 
  with any of 
  many other radios that I've used in the same contest configuration.
  
Here is what happens:  For phone contesting, I my software 
  CQPWIN, which 
  plays wav files for DVK usage (as do other programs).  I run 
  the output in 
  such a way that when the dvk is 

[Elecraft] New Elecraft Shipping Status Graphs

2008-04-23 Thread Brett Howard
I've updated the graphics on my server:

http://www.livecomputers.com/web_pics/Serials.png
http://www.livecomputers.com/web_pics/wait_times.png

Enjoy gentlemen.

PS:  Thanks all for publishing your K3's arrivals!



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RE: [K3] [Elecraft] Checking crystal filters,

2008-06-19 Thread Brett Howard
Doesn't the radio have a 2-tone generator built into it?

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of AD6XY - Mike
Sent: Thursday, June 19, 2008 8:12 AM
To: elecraft@mailman.qth.net
Subject: Re: [K3] [Elecraft] Checking crystal filters,


Traditionally this is a particularly hard measurement to make unless the
filter performance is very poor. 

Without professional test gear you will need to obtain or build two very
high quality signal sources, (say identical 7MHz crystal oscillators) at
least one of which needs to be tunable. These have to be buffered and then
very carefully combined. I think there was a design in the ARRL solid state
design book back in the 1980s. Then you can look for the 3rd order IMD
products at audio with something like Spectraview - hoping that your sound
card IMD performance is better than the radio, which it probably is not if
the radio is working. 

You need test sources with very low phase noise, more than 100dB down at the
spacing you are testing at. A typical signal generator is probably not good
enough for this measurement. Well designed crystal oscillators should be OK.

Maybe it is easier just to use the radio. When listening, if you can not
detect any intermods, then you don't have a problem with them.

Mike
-- 
View this message in context:
http://www.nabble.com/Checking-crystal-filters%2C-tp18010302p1803.html
Sent from the [K3] mailing list archive at Nabble.com.

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[Elecraft] Linux Update Util

2008-06-21 Thread Brett Howard
Noticing that the linux update app doesn't seem to be able to
communicate with the FTP server.  Has no issue downloding the config out
of the radio and seeing what versions its running but can't seem to get
the updates...  

Anyone else having this issue or is it only temporary? 

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[Elecraft] K3 Erase Memories

2008-06-21 Thread Brett Howard
Is there a way to erase a memory back to the default NULL state?  If not
is there a way to erase them all w/o having to re-cal the rig?

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Re: [Elecraft] Linux Update Util

2008-06-22 Thread Brett Howard
On Sat, 2008-06-21 at 22:59 -0700, oh2gqc wrote:
 Brett, 
 
 I just downloaded the latest sw from Elecraft using
 the Linux update app. No problems whatsoever.
 
 So I guess there was a temporary problem with 
 your connection or Elecraft's FTP-server...
 
 73's de Kari
 oh2gqc 
 
 
 Brett Howard wrote:
  
  Noticing that the linux update app doesn't seem to be able to
  communicate with the FTP server.  Has no issue downloding the config out
  of the radio and seeing what versions its running but can't seem to get
  the updates...  
  
  Anyone else having this issue or is it only temporary? 
  
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Re: [Elecraft] Linux Update Util

2008-06-22 Thread Brett Howard
If anyone is having issues with error 127 when trying to check for new
elecraft firmware it may be because you don't have curl installed.  

Enabling Verbose Logging under the view menu will tell you this when
you try to check for firmware again you will see the following errors:

00:26:58 bash: curl: command not found
00:26:58 Unable to connect to Elecraft server. Error: 127

This is much more informative than just the second line which is all you
see if you have verbose turned off.  

If you are running any Debian branch (including the Ubuntu folks and all
of its brances) you can solve this problem by opening a terminal and
running:
sudo apt-get install curl

After running that command curl will be downloaded and installed
automatically and everything automagically starts to work.  You can also
search for curl in the synaptic package manager under System 
Administration if you would like to install curl via the gui.

Hope this helps someone else in the future...  Gotta admit its nice that
there is a Linux app


On Sat, 2008-06-21 at 22:59 -0700, oh2gqc wrote:
 Brett, 
 
 I just downloaded the latest sw from Elecraft using
 the Linux update app. No problems whatsoever.
 
 So I guess there was a temporary problem with 
 your connection or Elecraft's FTP-server...
 
 73's de Kari
 oh2gqc 
 
 
 Brett Howard wrote:
  
  Noticing that the linux update app doesn't seem to be able to
  communicate with the FTP server.  Has no issue downloding the config out
  of the radio and seeing what versions its running but can't seem to get
  the updates...  
  
  Anyone else having this issue or is it only temporary? 
  
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Re: [Elecraft] K3 noise blanker sure does the job.

2008-06-23 Thread Brett Howard
They are only required to be so in California so far.

On Mon, 2008-06-23 at 15:11 +, Brian Alsop wrote:
 Ken Kopp wrote:
 
  Hi Ken,
 
  I used to be the line noise tech for my power company
  employer ...
 
  Touch lamps are a seldom-thought-of source of line noise.
 
  Wall-warts, too.
 
 Walwarts of the future will most likely be a real pain.  I understand 
 some legislation has required all of them to be switching in the near 
 future.
 
 73 de Brian/K3KO
 
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Re: [Elecraft] K3 noise blanker sure does the job.

2008-06-23 Thread Brett Howard
I've got a HUGE problem in my area too.  It only comes on at night (not
all nights though) and its periodic.  Like a lil over a minute on and
then 40 something seconds off and it goes on and off like that all
night.  It generally comes on shortly after the street lamps do.  A talk
with the power company results in a guy calling back saying he was in
the area and couldn't hear anything.  Well no doubt you weren't there
when the noise is.  And he says that if its the street lamps they have
no jurisdiction I have to speak with the city.  Unfortunately I have no
real way to tell what light it is.


On Mon, 2008-06-23 at 13:51 +, Ken Kopp wrote:
 Hi Ken,
 
 I used to be the line noise tech for my power company
 employer ...
 
 Touch lamps are a seldom-thought-of source of line noise.
 
 Wall-warts, too.
 
 73! Ken Kopp - K0PP
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RE: [Elecraft] No field day this year for W0CZ

2008-06-23 Thread Brett Howard
Many tune in here to get a picture of how production is moving along and the
emails of people getting their confirmation emails and emails of received
units were very appreciated by myself...

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of n4lq
Sent: Monday, June 23, 2008 12:30 PM
To: Mike Harris; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] No field day this year for W0CZ

This is almost as bad as those stupid Katigram things.
Steve Ellington
[EMAIL PROTECTED]
- Original Message - 
From: Mike Harris [EMAIL PROTECTED]
To: Elecraft@mailman.qth.net
Sent: Monday, June 23, 2008 2:40 PM
Subject: Re: [Elecraft] No field day this year for W0CZ


 G'day,

 And why do the 1000+ worldwide subscribers to this reflector need to be
 belaboured by this love-in stuff which has nothing whatsoever to do with
 Elecraft products or their use?

 Regards,

 Mike VP8NO

 - Original Message - 
 From: Bruce Bowman, NM5B [EMAIL PROTECTED]
 To: elecraft@mailman.qth.net
 Sent: Monday, June 23, 2008 2:15 PM
 Subject: Re: [Elecraft] No field day this year for W0CZ


 | re: Salvation Army... similar experience. I'll add my note of thanks!
 |
 | Bruce, NM5B

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No virus found in this incoming message.
Checked by AVG.
Version: 8.0.100 / Virus Database: 270.4.1/1514 - Release Date: 6/23/2008 
7:17 AM

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RE: [Elecraft] No field day this year for W0CZ

2008-06-24 Thread Brett Howard
I simply replied to all.  I'd just like to see things remain civil and while
some things are not wanted by a few there are many who do like them.  I was
making no accusations to anyone by copying them on the email.  I was just
trying to inform some about the fact that the K3 production reports are
appreciated by many.  I get a lot of comments off list about the graphs that
I provide reflecting K3 production and wait times.

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mike Harris
Sent: Tuesday, June 24, 2008 10:54 AM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] No field day this year for W0CZ

Hi Brett,

A pity you quoted me as well on this one.  Actually I don't have a problem 
with the Katigram stuff, at least it relates to K3's and doesn't start an 
interminable OT thread.  I was keen to see progress towards my own K3 
despatch.

I can make all the trouble I need myself without help from others!

Regards,

Mike VP8NO

- Original Message - 
From: Brett Howard [EMAIL PROTECTED]
To: 'n4lq' [EMAIL PROTECTED]; 'Mike Harris' 
[EMAIL PROTECTED]; Elecraft@mailman.qth.net
Sent: Monday, June 23, 2008 7:55 PM
Subject: RE: [Elecraft] No field day this year for W0CZ


| Many tune in here to get a picture of how production is moving along and 
the
| emails of people getting their confirmation emails and emails of 
received
| units were very appreciated by myself...
|
| -Original Message-
| From: [EMAIL PROTECTED]
| [mailto:[EMAIL PROTECTED] On Behalf Of n4lq
| Sent: Monday, June 23, 2008 12:30 PM
| To: Mike Harris; Elecraft@mailman.qth.net
| Subject: Re: [Elecraft] No field day this year for W0CZ
|
| This is almost as bad as those stupid Katigram things.
| Steve Ellington

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Re: [Elecraft] K3: K3 for Field Day

2008-06-25 Thread Brett Howard
Please note that using AFX features in that configuration is known to
cause some strange distortion products from the summing of two signals
which are phase delayed from each other.  This comment was made by Lyle.
It probably won't be an issue for you I just wanted to make sure you
were informed.


On Wed, 2008-06-25 at 08:16 -0500, Tom Whiteside wrote:
 My new K3 is going participate in our W5C effort in central Texas.One 
 thing we always do is gang an extra speaker with headphones so that a gaggle 
 of us an participate.In getting ready, I discovered that the K3 has a 
 wonderful built in facilty that makes this a piece of cake.Set menu item: 
 SPKR+PH to YES and you will hear both the speaker and phones at the same 
 time.Setting SPKRS to 2 let me hear the audio in both ears in the 
 headphones.Pretty slick!
 
 Everyone else probably figured that out already but FYI if you haven't
 
 Tom Whiteside N5TW
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Re: [Elecraft] K3 Mic Connection

2008-06-27 Thread Brett Howard
Does anyone know of an adapter that some one sells to adapt an 8-pin mic
plug to the 1/8 / 3.5mm jack on the back?  Would be slick to get a
completely clean and empty front panel.  I'd even be happy if the PTT
wasn't connected.  The VOX works so well its not needed.  I'd not want
to use the button on the mic anyway.  I'll just wire up a foot pedal.
Perhaps if I end up having to make a connector I'll just buy some extra
connectors and see if anyone else is interested in buying the extras off
me

Any thoughts?

On Wed, 2008-06-18 at 15:34 -0700, nn5g wrote:
 I am in the process of trying to mate a Heil PR-40 to my new K3.  I do have a
 mic cable wired for Kenwood use. A couple of questions…..
 
 1.Is there any advantage to using the mic connection on the back, versus
 the front.
 
 2.If the back connection is made I assume I use the “mic mono” and “ PTT
 In” connections. How are these connectors configured from the kenwood cable?
 
 Tnx  73 de Paul NN5G
 

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Re: [Elecraft] Re: K3 Key-down on power-up [Solution?]

2008-06-27 Thread Brett Howard
Sounds like a smart addition to me.  Protects people from transmitting
into something horrible on accident.  Always puts a smile on your face
when software protects you from doing something stupid on accident.


On Fri, 2008-06-27 at 19:51 -0700, wayne burdick wrote:
 Dave,
 
 I wanted to run a possible solution past you.
 
 I could prevent the rig from being keyed (by any method) during the 
 first couple of seconds that it's powered up. Instead, it could detect 
 this case, and display a repeating message (something like: KEYLINE IS 
 ACTIVE) until you either remove the source of the keying or turn power 
 off.
 
 Thoughts on this?
 
 73,
 Wayne
 N6KR
 
 
 Dave Hachadorian, K6LL wrote:
 
  I've got my K3 set up for cw on Field Day with a laptop usb
  port driving a usb to serial converter. Rig control and cw
  keying are done over the serial cable, using the K3's
  built-in ability to send cw from pin 4(?) of the rs-232
  cable.
 
  Everything works fine, but I got quite a scare when I turned
  on the K3 and it came up keyed-down 120 watts into no
  antenna.  It seems that if the laptop is not running the
  logging program, rs-232 pin 4 can very well be in a key-down
  state.
 
 
 ---
 
 http://www.elecraft.com
 
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[Elecraft] No power out all of the sudden... :(

2008-06-28 Thread Brett Howard
Ok so we're out at field day and all of the sudden I heard a somewhat
strong signal and then all the receive has gone to low S Meter numbers
yet the radio is not deaf at all.  

Whats worse is that I am getting no RF out.  Pressing tune the radio
draws about 2.3A and displays -- for the SWR.  When tuning I get -- for
the SWR as well.  In tune mode the power out at the bottom shows 0W.
When hitting tune it says 5.0W at the bottom and shows 5W on the bar
graph but it ends up doing a full search to try and find a match and
never finds anything cause there is no SWR shown.

I've done a full parameter reset and have reloaded my parameters from
before field day.  No such luck.

Any help would be GREATLY appreciated!

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RE: [Elecraft] No power out all of the sudden... :(

2008-06-28 Thread Brett Howard
Just opened the radio and sniffed around and looked at components on ATU
board.  All appears fine.  Many field day goers have been quite
impressed with the innards of the K3 and its capabilities.  Have
probably sold 2 or 3 K3's today, even with the failures.  

 
On Sat, 2008-06-28 at 20:49 -0700, Brett Howard wrote:
 Hadn't tried PA bypass yet but just did and it seems to be not working.
 When I hit tune with the rig set to 100mW I get a bit of power out but a
 radio next to me only sees me as 20 over cranking the power up to 12
 watts in PA Byp and ATU Byp only puts his radio at 40 over and that
 should be able to get higher than that at this range.  The K3 still
 claims 0W out.
 
 
 On Sat, 2008-06-28 at 23:24 -0400, Gary Hvizdak wrote:
  Hi Brett,
  
  Have you tried bypassing the KPA3 by setting the KPA3 menu entry to
  PA BYP?  After that the next thing to try might be to bypass the KAT3.
  
  73,
  Gary  KI4GGX
  
  
  -Original Message-
  From: Brett Howard [mailto:[EMAIL PROTECTED] 
  Sent: Saturday 28 June 2008 2317
  To: Gary Hvizdak
  Cc: [EMAIL PROTECTED]
  Subject: RE: [Elecraft] No power out all of the sudden... :(
  
  100W PA
  Transverter interface
  ATU
  2.7K filter 
  1.8K filter
  250Hz filter
  
  
  Although I should mention that I just did a full reset of all settings
  and reloaded the 2.02 firmware and right now I've done only the filter
  setup and have all filters turned on in all modes and have all modes
  (that I'm worried about) transmitting through FL2 (the 2.7K).  I've not
  enabled any of the modules that I have in the radio and am still seeing
  this issue.
  
  
  On Sat, 2008-06-28 at 23:11 -0400, Gary Hvizdak wrote:
   Brett,
   

   
   First question is . what options do you have installed in your K3?
   

   
   73,
   Gary  KI4GGX
   

   
  
   __

   
   Brett Howard brett at livecomputers.com 
   Sat Jun 28 22:36:50 EDT 2008 
   
  
   __
   Ok so we're out at field day and all of the sudden I heard a somewhat
   strong signal and then all the receive has gone to low S Meter numbers
   yet the radio is not deaf at all.  

   What's worse is that I am getting no RF out.  Pressing tune the radio
   draws about 2.3A and displays -- for the SWR.  When tuning I get -- for
   the SWR as well.  In tune mode the power out at the bottom shows 0W.
   When hitting tune it says 5.0W at the bottom and shows 5W on the bar
   graph but it ends up doing a full search to try and find a match and
   never finds anything cause there is no SWR shown.

   I've done a full parameter reset and have reloaded my parameters from
   before field day.  No such luck.

   Any help would be GREATLY appreciated!

   

   
   
  
 

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Re: [Elecraft] Re: K3 Key-down on power-up [Solution?]

2008-06-28 Thread Brett Howard
I thought of another feature to help fix the stupid user issue.  How
about a lock that doesn't allow a band change.  Such as a special way to
use the lock button that doesn't lock one out from QSYing but doesn't
allow them to move off of say 40 meters.  We had a death to a band pass
filter cause some one turned their equipment over to a new ham on
another one of the stations and a feature that locks from going to
another band could have prevented that.  Also would be useful for when
you don't have the tuner nor an external and your antenna is only good
on one band.

On Fri, 2008-06-27 at 19:51 -0700, wayne burdick wrote:
 Dave,
 
 I wanted to run a possible solution past you.
 
 I could prevent the rig from being keyed (by any method) during the 
 first couple of seconds that it's powered up. Instead, it could detect 
 this case, and display a repeating message (something like: KEYLINE IS 
 ACTIVE) until you either remove the source of the keying or turn power 
 off.
 
 Thoughts on this?
 
 73,
 Wayne
 N6KR
 
 
 Dave Hachadorian, K6LL wrote:
 
  I've got my K3 set up for cw on Field Day with a laptop usb
  port driving a usb to serial converter. Rig control and cw
  keying are done over the serial cable, using the K3's
  built-in ability to send cw from pin 4(?) of the rs-232
  cable.
 
  Everything works fine, but I got quite a scare when I turned
  on the K3 and it came up keyed-down 120 watts into no
  antenna.  It seems that if the laptop is not running the
  logging program, rs-232 pin 4 can very well be in a key-down
  state.
 
 
 ---
 
 http://www.elecraft.com
 
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Re: [Elecraft] Temp Readings

2008-06-28 Thread Brett Howard
Go into the config menu and set TECH MD to on then repeat the steps you
mentioned below.


On Sat, 2008-06-28 at 22:37 -0700, Lee Buller wrote:
 I've been trying to determine what the FP and the PA temps are during FD and 
 the book says that  you should be able to tap DISP and then use VFO B to see 
 PA xxC in the alternate display.  This does not happen.  Was this changed in 
 a update?  I bet I am doing something wrong.
 
 Lee 
 K0WA
 
 
 
 In our day and age it seems that Common Sense is in short supply.  If you 
 don't have any Common Sense - get some Common Sense and use it.  If you can't 
 find any Common Sense, ask for help from somebody who has some Common Sense.  
 Is Common Sense divine?
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RE: [Elecraft] They Laughed At My K1

2008-06-29 Thread Brett Howard
They laughed at my K1 too and said that life was too short for QRP.
Then as they were putting up the antenna I proceeded to make a contact
from the Oregon coast to southern California at 7 watts with the antenna
still laying on the ground.  

Then I got to have a LOT of fun making about 250+ contacts on the K3
before it died and would no longer produce RF output.  We had a K2 and
put that into its place afterward and kept the action alive but it just
wasn't the same with my baby dead.  I've only had it a week.  Most of
the guys were amazed at how well I knew the radio for someone that had
only owned it a week.  My pat answer to that was when you have to wait 5
months to get a rig after the order process you get a chance to review
the manual a few times in there! :)

I think I sold 3 K3's this field day.  The guys were also quite
surprised at how happy I remained even after it broke.  They were saying
boy I'd be worried that things were going to be taken care of ok and
what not if my YaeComWood went down like that.  One thing about owning
an Elecraft is that you KNOW the manufacturer is going to stand behind
you!

Elecraft was well represented at our FD.  We had everything there but a
KX1.  Even had a few guys with Elecraft test gear.  Had a noise gen, a
S-Meter calibrator, and a WM1 there. :)  The heavy operators tent
looked like a Elecraft booth at a hamfest. :)

On Sun, 2008-06-29 at 14:07 -0700, Ron D'Eau Claire wrote:
 Geat Jon! 
 
 That power issue has gone on since I made my first QSO back in '52. There
 are so many ops convinced that there's a huge difference between 5 or 10
 watts and 100 watts or so they can't believe that it's almost impossible to
 spot the difference on the air under many circumstances. Back then I knew
 ops who laughed at my rig running 50 watts out saying they obviously had a
 much bigger signal running about 70 watts output. Ha!  
 
 There are even some today who think there's a useful difference between 80
 and 120 watts. 
 
 Sure, in a contest there's a lot more QRM. But, as you noted, that's better
 handled by a superior receiver than superior power, especially when it takes
 a huge increase in power to be noticeable at the other end. Besides, in a
 contest, one doesn't have complex QSO's - just a simple little exchange of
 a few numbers snuck between the QRN and QRM and it's time to go on to the
 next station. 
 
 And the multipliers you gain by not giving into the high power fantasy are a
 real bonus. 
 
 Perhaps we shouldn't make the minimal advantage of high power widely known
 or the QRP/Battery/Solar multipliers might go away ;-)
 
 Naw, educating others with solid examples is more important. Keep setting
 the great example - and having great fun! 
 
 Ron AC7AC
 
 -Original Message-
 
 All the big radios laughed at my K1 when I set it up at the club Field Day
 site.
 
 But they stopped laughing when it churned out QSO after QSO on 40 and 20
 meters -- mainly because it has a better receiver for CW than ICOM 746 and
 756 base stations.
 
 And they especially stopped laughing when one of the generators died,
 knocking one of the big rigs off the air.  The K1 stepped in and ran for 12+
 hours on batteries (overnight) and a solar cell (daylight).
 
 Plus, just think of those multiplier points for QRP and for solar power.
 
 KB1QBZ
 K1 #2552
 
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Re: [Elecraft] Err Txg

2008-06-29 Thread Brett Howard
You need to select the slot number that your 2.7Khz filter is in.  I'm
getting the same ERR TXG failure on all bands with my rig and have low
receiver sensitivity and it just happened all of the sudden during field
day.  Not sure what happened but I'll be certain to post the findings
once I get it figured out what it takes to repair it.

On Sat, 2008-06-28 at 02:02 -0700, OE5CSP-Chris wrote:
 I could fix the problem with the misssing power jumper block- I installed the
 KPAIO 3 instead-thanks for your help by the way. Now I´m stuck again at the
 Transmiter Gain calibration.Err TXg occured on the display on every band and
 there is no power output.The rx seems to be deaf, I can only hear very loud
 signals.I checked everything again-the frequency offset is okay, but when I 
 came to the transmit crystal filter selection I could not select  a transmit
 filter value(e.g 2700kHz), but only the filter numbers(1-5)!
 Any ideas?
 
 
 73,Chris-OE5CSP

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Re: [Elecraft] Re: K3 Key-down on power-up [Solution?]

2008-06-29 Thread Brett Howard
These are the types of things that get new people interested in ham
radio!  Sometimes you can't hang over their shoulder the ENTIRE time
especially when you get someone who is really enjoying things and wants
to operate for a while.

On Sun, 2008-06-29 at 07:42 -0500, Jim Cox wrote:
 The radio cant do everything for you.  Why anyone would let a stupid user 
 operate their  2K radio at a field day site is beyond me.   Jim K4JAF
 
 
 - Original Message - 
 From: Brett Howard [EMAIL PROTECTED]
 To: wayne burdick [EMAIL PROTECTED]
 Cc: Elecraft Reflector elecraft@mailman.qth.net
 Sent: Sunday, June 29, 2008 12:24 AM
 Subject: Re: [Elecraft] Re: K3 Key-down on power-up [Solution?]
 
 
 I thought of another feature to help fix the stupid user issue.  How
  about a lock that doesn't allow a band change.  Such as a special way to
  use the lock button that doesn't lock one out from QSYing but doesn't
  allow them to move off of say 40 meters.  We had a death to a band pass
  filter cause some one turned their equipment over to a new ham on
  another one of the stations and a feature that locks from going to
  another band could have prevented that.  Also would be useful for when
  you don't have the tuner nor an external and your antenna is only good
  on one band.
 
  On Fri, 2008-06-27 at 19:51 -0700, wayne burdick wrote:
  Dave,
 
  I wanted to run a possible solution past you.
 
  I could prevent the rig from being keyed (by any method) during the
  first couple of seconds that it's powered up. Instead, it could detect
  this case, and display a repeating message (something like: KEYLINE IS
  ACTIVE) until you either remove the source of the keying or turn power
  off.
 
  Thoughts on this?
 
  73,
  Wayne
  N6KR
 
 
  Dave Hachadorian, K6LL wrote:
 
   I've got my K3 set up for cw on Field Day with a laptop usb
   port driving a usb to serial converter. Rig control and cw
   keying are done over the serial cable, using the K3's
   built-in ability to send cw from pin 4(?) of the rs-232
   cable.
  
   Everything works fine, but I got quite a scare when I turned
   on the K3 and it came up keyed-down 120 watts into no
   antenna.  It seems that if the laptop is not running the
   logging program, rs-232 pin 4 can very well be in a key-down
   state.
 
 
  ---
 
  http://www.elecraft.com
 
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Re: [Elecraft] K3-Very low sensitivity and tx gain calibration failure

2008-06-29 Thread Brett Howard
I had this problem too but usually what it is is simply the fact that
you didn't power cycle the radio after setting the ATU to bypass for the
first time in the config menu.

On Sat, 2008-06-28 at 11:46 -0700, OE5CSP-Chris wrote:
 Got some very good hints but the sensitivity on all bands is still far too
 low and I still can´t calibrate the tx gain.(low power)
 Maybe there is a problem with the ATU, because when I hit the Ant button the
 K3 says NO ATU (ATU set to AUTO)and I can´t change the antenna terminal...
 
 73 Chris-OE5CSP

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Re: [Elecraft] [K3] UTILITY Improvements

2008-06-29 Thread Brett Howard
I'd also like to see the CW memories and things like that that all get
changed for events like that be things that are able to be backed up in
the configuration.

Also is there any way to REALLY clear the radio.  Holding down shift/low
and powering up does a reset of the parameters but things like CW
memories are still there.  I've been trying to completely reset it back
to time zero to see if that can fix my ERR TXG problems that came up
during FD.

~Brett

On Sun, 2008-06-29 at 19:40 -0500, K2ZLS wrote:
 Hi All...I Guess we are all worn out from FD , but as others said, the 
 K3 worked wonders.
 With all that operating behind us, I found that it would be nice to 
 have an easier way to change the data in the 00-99 Memory locations.  I 
 was wondering if the Utility Program can expanded so we can READ, EDIT, 
 ERASE, SAVE  and REPLACE key DATA elements such as the text that is 
 entered by hand  into each of the 00-99 memories in a similar manner 
 that the Filter Configuration can be managed.  I know it can save 
 Configuation Files but they cant be edited.   It is a great tool now and 
 it is just begging (?) to be expanded.   What do you think?
 
 73's   TonyK2ZLS
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Re: [Elecraft] Re: K3 Key-down on power-up [Solution?]

2008-06-29 Thread Brett Howard
When I was a kid and had my tech license I only operated on 2m packet
and fm repeater operation.  I really liked that I could go in on 2m or
440 and then come out on HF packet and get a little further.  But the
only time I got to operate on the real bands was during field day.  As a
kid I loved it cause they'd set me up and let me run all night long.
I'd never sleep a wink cause I wanted to get in as much HF operation as
possible.  I thank all the gentlemen who let me use their rigs during
field day.  So far this field day is the first day I've ever broken a
rig.  All I can say is thankfully I was the one operating it when it
died!

On Sun, 2008-06-29 at 19:37 -0400, [EMAIL PROTECTED] wrote:
 In a message dated 6/29/08 8:43:06 AM Eastern Daylight Time, 
 [EMAIL PROTECTED] writes:
 
 
  Why anyone would let a stupid user 
  operate their  2K radio at a field day site is beyond me. 
 
 OTOH:
 
 One of the things FD is supposed to be is a training/education exercise. 
 While it's certainly not a 100%-accurate simulation of a real emergency 
 drill, 
 there's always something to be learned. (I've done ever single FD since I was 
 licensed in 1967, and learned something on every one.)
 
 Part of that education is learning about stuff we don't ordinarily do. The 
 first Elecraft I ever saw in real life was N3IUT's K2, whose sn is under 200. 
 All the ads, numbers and testimonials in the world did not have the impact of 
 using that rig under FD conditions. 
 
 Sure it's a risk to let someone else use a rig - of any price. I've always 
 thought that one should not bring something on FD that one cannot tolerate 
 losing, or having damaged. 
 
 But I'm still grateful to those many amateurs over the years who let me and 
 others use FD rigs we could not have owned ourselves at the time, and so 
 learn 
 what distinguishes a great rig from a good one.
 
 In 1970 I was a 16-year-old, licensed just three years. Yet the let me run 
 the 40 meter CW setup overnight on FD that year. The rig was a Drake 
 R-4B/T-4XB, 
 worth something like $1200 at the time. More like $5000-6000 in today's 
 money.
 
 73 de Jim, N2EY
 
 
 **
 Gas prices getting you down? Search AOL Autos 
 for fuel-efficient used cars.
   
 (http://autos.aol.com/used?ncid=aolaut000507)
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Re: [Elecraft] K3: Key down, Operator trouble, etc.

2008-06-29 Thread Brett Howard
I was thinking it would be nice for the owner of the radio.  Cause if
the op isn't the owner and the op makes a mistake the owner is out.  But
ok I'm an idiot.

On Sun, 2008-06-29 at 12:44 +, Brian Alsop wrote:
 In my opinion you don't want to burden the radio with this.
 
 The preferred way is to use any contesting program for logging and set 
 it up to be a single band operation.
 
 Trying to make the radio so smart that it compensates for operator 
 error is inappropriate.  
 The op makes a mistake, tough.  Perhaps he will learn from it and move on.
 
 73 de Brian/K3KO
 
 Kenneth Waites wrote:
 
 I am afraid this will lead us to need a reminder function  to alert the 
 operator to possibly lock bands.  This will only sound when the date 
 coincides with a contest.  Then we will need another facility to select only 
 the contests we need to be reminded of so we can possibly lock the band 
 change.  Then we will need a reminder for where we left the manual since we 
 will have forgotten how to do it.
  
 
  
  
   
 
 I thought of another feature to help fix the stupid user issue.  How
 
 
 about a lock that doesn't allow a band change.  Such as a special way to
 use the lock button that doesn't lock one out from QSYing but doesn't
 allow them to move off of say 40 meters.  We had a death to a band pass
 filter cause some one turned their equipment over to a new ham on
 another one of the stations and a feature that locks from going to
 another band could have prevented that.  Also would be useful for when
 you don't have the tuner nor an external and your antenna is only good
 on one band.
 
 
 
  
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Re: [Elecraft] K3: Key down, Operator trouble, etc.

2008-06-29 Thread Brett Howard
Agreed this is a very interesting proposition.

On Sun, 2008-06-29 at 10:00 -0400, Don Wilhelm wrote:
 There was discussion of a future firmware change that would allow 
 different confgurations to be loaded - such as only 80, 40, 20, 15, and 
 10 for a specific contest.  Once implemented, and when taken to extreme, 
 the K3 could be configured for only one band.  In my opinion, a 
 configuration like that is much more acceptable than a button (like the 
 VFO LOCK) to lock the K3 on one band.
 
 73,
 Don W3FPR
 
 Alexandr Kobranov wrote:
  Yes, one thing is not to make radis so smart and second one is how 
  much cost all around which can be destroyed by some stupid mistake.
  
  Such option - locking band - is not critical one but can help also in 
  transverter mode, when only selected transverter band will be permitted.
  In case when transverter is driven by standard ANT port with let say 
  0,2W max out, switching to some standrd HF band with standard output 
  power (12W max resp. 100W max) and short attempt to TX can destroy TX 
  line in transverter I suppose. (Not tested - yet - :))
  
  There is no way how to rely on PC control if BAND up/down button is 
  still active and human being is operating station... Especially 
  inmultioperator enviroment with different operators and skills.
  
  73!
  Lexa, ok1dst
  
  Brian Alsop napsal(a):
  In my opinion you don't want to burden the radio with this.
 
  The preferred way is to use any contesting program for logging and set 
  it up to be a single band operation.
 
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Re: [Elecraft] K3 #195 FW:Beta 2.10 Output Pwr Out Of Control

2008-06-29 Thread Brett Howard
Have you tried re-doing the tune at 5 watts and 50 watts to try and
recalibrate the tx gain settings?

On Sun, 2008-06-29 at 20:30 -0700, Don Ehrlich wrote:
 Starting with my first qso after loading Beta 2.10 last week my K3 shut down 
 (turned off) unexpectedly in the middle of an SSB qso while I was 
 transmitting at about 60 watts PEP out.  Later I was able, after several 
 failed attempts, to turn it on again and now, a few days later, it is 
 happening again.  Now, though, it looks like a hard failure.  Any attempt to 
 transmit at over about 30 watts out results in shutdown.  This occurs on 
 both 160 and 80 meters.  I have not tried other bands.
 
 The symptoms are that indicated peak output power is is about three times 
 the specified amount.  At around 40 watts commanded actual power is up to 
 over 120 watts and that is about the level where shutdown occurs.  As I 
 write this the K3 is in CW mode on 80 meters connected to a 50 ohm dummy 
 load.  The output power is set to 30 watts and when I press the TUNE button 
 actual output power indicated by an external meter (average, not peak mode) 
 shows a power of 30 watts varying 1 or 2 watts plus and minus. When switched 
 to peak mode the external wattmeter indicates 70 watts.   The input current 
 is varying from 6 to 13 amps as indicated on the K3 digital display, and the 
 SWR indication on the display is flashing 1.0 - 1 on and off at an uneven 
 rate and the RF output indication on the K3 display is 70 watts but also 
 flashing and jittering.
 
 This started with FW beta 2.10 and I hope that is the problem but I'm 
 worried that it might be something more serious.
 
 I have made no changes to settings recently.
 
 HELP!
 
 Don K7FJ 
 
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[Elecraft] How to 100% Factory Reset a K3

2008-06-29 Thread Brett Howard
Ok so I've done the hold shift/low while turning on and I've been able
to reset all the radio parameters but I find that the CW memories and
also the frequency memories are retained.  Is there a way to erase ALL
the settings and get things back into the shape the radio was when I
first finished putting it together?

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[Elecraft] K3 Service Manual

2008-06-29 Thread Brett Howard
I see a lot of references to the service manual (such as when you have
an ERR TXG) is this manual just not done yet?  I see no mention of it in
the manual download area.

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Re: [Elecraft] K3 speaker resonance problem

2008-06-30 Thread Brett Howard
Some have also added black tape to the top panel in the locations where
it comes into contact with certain areas of the chassis.

On Mon, 2008-06-30 at 20:23 -0700, Allan Taylor wrote:
 After a rather hectic month, I finally got my K3 on the air this
 afternoon. (Worked by coincidence another K3: WA7VHO)).
 But unfortunately my unit (from the kit) has a speaker resonance with
 the cabinet at about 700 Hz or so. (Not good for a CW
 op!)  As others may have had this problem, could they share the
 likeliest screws to fuss with or case components to reposition
 slightly?
 

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Re: [Elecraft] fuse size

2008-06-30 Thread Brett Howard
Depends on if you are talking K3/10 or K3/100 either way you'd probably
do just fine with a 25A.  If you want a little more room you'd be just
fine with a 30A in there too.  Being that is what your connectors are
rated to.   

On Mon, 2008-06-30 at 20:56 -0700, Blachura wrote:
 What is a recommended fuse size for the K3? I have It hooked up with a
 rigrunner.
 
 Don...w2xb

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Re: [Elecraft] [K3] Software suggestion: a more prominent TEST indicator

2008-07-01 Thread Brett Howard
HAHA...  At FD one of the operators said... Man I really love the way
the receiver sounds but NOBODY will come back to me.  On his next
transmission I noticed that there was no RF showing up on the bar graph.
Then I noticed the flashing TX...  I mentioned to him that he was in
test mode.  Poof one button press and miraculously he was getting call
backs! :)

On Mon, 2008-06-30 at 22:43 -0700, Carl Clawson wrote:
 It's just too easy to miss the little blinking TX annunciator if you've left
 your K3 in test mode. How about once in a while doing something more
 dramatic like scrolling TX TEST across the VFO A display, or flashing the
 display, or making the SWR and power meter displays flicker in some
 obnoxious way, or ...
 
 The challenge is to think of something that doesn't impair any useful aspect
 of test mode.
 
 73  thanks for listening,
 Carl WS7L
 
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Re: [Elecraft] OT Best wishes to N0SS

2008-07-01 Thread Brett Howard
Tom HAS to do well!  He's the only one who's often there to relay and
slow down for me so I can get into ECN! :)  We're all thinking about you
Tom and wish you the very best.

On Tue, 2008-07-01 at 08:32 +0100, David Ferrington, M0XDF wrote:
 And a K3 field tester who has helped me a lot and given lots of advice.
 Wishing Tom well and keeping him in my thoughts.
 73 de M0XDF, K3 #174
 --  
 One can pay back the loan of gold, but one dies forever in debt to those
 who are kind. -Malayan Proverb
 
 On 1 Jul 2008, at 00:03, Bruce McLaughlin wrote:
 
  I'm sure we all wish him the very best.  He is a tremendous  
  contributor to
  this reflector.
 
  Bruce-W8FU
 
  -Original Message-
  From: [EMAIL PROTECTED]
  [mailto:[EMAIL PROTECTED] On Behalf Of David Lankshear
  Sent: Monday, June 30, 2008 7:01 PM
  To: Elecraft@mailman.qth.net
  Subject: [Elecraft] OT Best wishes to N0SS
 
  Tom Hammond, N0SS, a fine amateur and gentleman in the truest sense  
  is due
  to undergo major abdominal surgery on July 1st.
 
  Best wishes, Tom, our thoughts are with you and Jeri.  Hope you're  
  soon
  fighting fit and we can share many more Elecraft moments with you.
 
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RE: [Elecraft] [K3] UTILITY Improvements

2008-07-01 Thread Brett Howard
Agreed XML could be a good way to set things up.  As well it would be
helpful for Elecraft in the future as if you're having trouble they can
ask you to send in your config and they can quickly open it and find
problems if they're in there.

I was kinda hoping that when I read the config out of my radio before FD
that when I loaded stuff back in that all my CW memories would be back
to the way they were and all the memories.  

Thankfully it sounds like the ability to erase memories is coming soon.
I'm sure there still won't be a way to erase a CW memory but man it
would be great to be able to suck out the whole radio and then mess with
things for FD or whatever and then poof blow  it all back in after the
fact. 

On Tue, 2008-07-01 at 17:05 -0700, Lee Buller wrote:
 
 Why not use XML so interchange could be universal?  That way people can send 
 each other their set ups.  That could be interesting.  And, you could change 
 set ups depending on what you want to do
 
 Lee- K0WA
 
 
 
 In our day and age it seems that Common Sense is in short supply.  If you 
 don't have any Common Sense - get some Common Sense and use it.  If you can't 
 find any Common Sense, ask for help from somebody who has some Common Sense.  
 Is Common Sense divine?
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Re: [Elecraft] [K3] Software suggestion: a more prominent TEST indicator

2008-07-01 Thread Brett Howard
Morse code legends are cool.  I always kinda dug that the kenwood would
beep the first char of the mode that you just set things to.  Now that
I'm starting to learn code a little better I start to like them more and
more.  I'd put them at VERY low priority but do have to admit they're
more of a coolness factor than much of anything else.  

Some of the warnings could benefit from audible nuggets.  Such as the
High RFI, High SWR, High Current, Batt Low.  You know the ones that are
warning you to stop your foolishness before you break things.

~Brett (KC7OTG)

On Tue, 2008-07-01 at 07:35 -0400, [EMAIL PROTECTED] wrote:
 I'm actually a little more worried the TEST mode will be off when it
 actually isn't. I like to bang out a few practice lines of code every
 now and then just to keep the fist limbered up. It is kind of
 embarrassing to open up on the air with a few stanzas from Kubla Khan
 or something, thinking the transmitter is disabled...
 
 Rather than a bigger visual indication for TEST, I would rather have
 an audible warning. Say, a distinctive chirp every 5 seconds or so.
 Perhaps other functions could also benefit from audible
 annunciatiors/warning chirps. These would be user selectable, of
 course. 
 
 Aren't there plans to do this? I thought I read somewhere that audio
 chirps and Morse Code legends would be addded for various button
 pushes/functions?
 
 73,
 Drew
 AF2Z
 


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RE: [Elecraft] [K3] UTILITY Improvements

2008-07-01 Thread Brett Howard
If you've seen HTML its somewhat similar.  XML is like HTML but with
more stringent rules.  Its VERY human readable and quite simple to work
with.  As far as the argument that it results in large files people are
living in the past.  Broadband is becoming more and more common place
and USB sticks are going to be able to hold them no problem.  If people
really want to live in the stone age I'm certain that they'll still fit
on a 3.5 floppy.


On Tue, 2008-07-01 at 21:10 -0700, Ralph Tyrrell wrote:
 What is XML?
 
 I looked it up it is Extensible Markup Language (XML)
 
 I still do not know what to do with it.
 Oh well, another language to learn. It does keep the mind working.
 
 73, Ty, W1TF
 
 
 
 
   
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Re: [Elecraft] k3 split/ delta F ?

2008-07-03 Thread Brett Howard
You can display the RIT offset using the disp menu feature while tech md
is on.  Then you can see the delta F in place of the VFO B.  The only
downside is that you have to use the small knob to set y our delta f.


On Thu, 2008-07-03 at 12:41 +0100, Stewart Baker wrote:
 As far as I can see it is not possible at present. It is fairly 
 high on my should be quick to implement wish list :-)
 
 73
 Stewart G3RXQ
 On Thu, 3 Jul 2008 04:22:59 -0700 (PDT), K3KO wrote:
 
  Anybody figure out if it is possible to display a delta F value 
 instead of
  the actual VFO B frequency when in split?
 
  I've found that delta F is quite useful.  The actual frequency, 
 in practice,
  is irrelevant in most split cases.
 
  Made a couple split contacts now on CW.  I like the fact that 
 bset stays on
  so one can tune without having to hold it down continuously -- 
 like some
  Kenwoods and ICOM's require.
 
  73 de Brian/K3KO
 
 
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Re: [Elecraft] K3 headset question

2008-07-03 Thread Brett Howard
Does anyone know of an adapter that will take a Kenwood 8-pin mic jack
and set things up so it will fit into the 3.5mm mic jack on the back?
Or is this one of those things that I'd have to make...

On Thu, 2008-07-03 at 19:39 -0500, Tom Childers, N5GE wrote:
 On Thu, 3 Jul 2008 17:23:20 -0700 (PDT), KB1PXD [EMAIL PROTECTED] wrote:
 
 
 Greetings,
 My K3 will be shipped out any day now! (woo-hoo)
 I've decided to pickup a Heil headset, but I'm not sure if I should
 go with the Elecraft proset-k2, or just run out to HRO and grab
 a proset-4, etc.  Questions:
 
 1.) If I decide to pick one up at at HRO, can I just pickup the adapter
 that's pinned out for Kenwood radios? (8-pin)
 
 You won't need an adapter.  The K3 has a mono mic jack at the rear of the unit
 for the mono 1/8 plug mic plug like the one on the end of the pro series mic
 cable and a stereo jack at the rear for the headphones.  I have a Proset Plus!
 and that's how I have it connected, although I do have a Kenwood adapter for 
 it
 also.
 
 
 2.) Does the Elecraft proset-k2 come already wired for the K3 with
 no soldering required?
 
 
 Yes.  I believe the one from Elecraft has the same plugs as described above, 
 but
 have not seen one.  I'll bet some one will correct me if I'm wrong.
 
 ** I'm trying to avoid any soldering if possible.
 
 Any pros/cons of either of these choices? 
 
 Thanks!
 
 Bill
 kb1pxd
 
 73,
 
 Tom, N5GE - SWOT 3537 - Grid EM12jq
 
 Those who would give up 
 Essential Liberty to 
 purchase a little Temporary 
 Safety deserve neither 
 Liberty nor Safety 
 
 An excerpt from a letter 
 written in 1755 from the 
 Assembly to the Governor 
 of Pennsylvania.
 
 Support the entire Constitution, not 
 just the parts you like.
 
 http://www.n5ge.com
 http://www.eQSL.cc/Member.cfm?N5GE
 
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[Elecraft] K3 Burn In

2008-07-04 Thread Brett Howard
Has anyone done a burn in on their radios to test?  They rate to 100W
100% duty cycle for 10 minutes.  I'm sure there is quite a bit of
headroom in that too.  Has anyone tested to that?  Do any of the
Elecraft guys object to that type of testing?  

I had a strange failure at FD this year and worry that unless I do a
burn in like that once it gets back that my normal amount of operation
will take quite a while to emulate what the rig saw during field day.  

I'm assuming that the PA won't let you go till things are too hot and it
will protect if things get a little too hot under the collar.  Is there
any sort of permanent damage that can occur by doing this type of
testing?  I just want to be sure that I end up with a radio that I can
spend some time with and get ALL the options into over time.  

Other than my K1 this will be the first HF rig I've personally owned.
I'd really like it to last me a long time.  During the week I owned it I
REALLY loved the thing!  Now going back to the K1 I really miss the
K3! :)  Don't get me wrong I LOVE my K1 but its no K3! :)

If there are any tests I should do other than trying to measure MDS with
my XG2 and trying to do some key down tests to try and prove out that I
have no issues please let me know.

~Brett (KC7OTG)

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Re: [Elecraft] K3: KRX3 question

2008-07-04 Thread Brett Howard
So am I to assume that the 8-pole filters are not going to need to worry
about this as they are all at 0 anyway?  What is the advantage of
getting two matched pairs of 5-pole filters when you can get two 8-poles
for only 10 bucks a filter more?

I'm assuming that its 100 + 100 + 30 for matched 5-pole filters or 125 +
125 for the 8-pole filters.  I can see there being a great advantage if
you already have a 5-pole and want to match it in your sub RX.  But if
you're just getting 2 at the same time it seems like the 8-pole makes
for a good option too..  At least I hope so cause diversity receive was
the main reason I figured I'd go for the 8-poles... :)  

~Brett(KC7OTG)

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RE: [Elecraft] K3 Burn In

2008-07-04 Thread Brett Howard
I agree that sounds like a pretty good test.

The K3 is a PHENOMENAL radio and I'm very familiar with things breaking
in their infancy.  I'm just hoping that the kinks are very well buried
when it comes back.  Appreciate the tips on what you did

On Fri, 2008-07-04 at 09:25 -0400, John King wrote:
 Disclaimer - the following test method is not approved or 
 sanctioned by Elecraft. Conduct any testing at your own risk.
 
 I work in Quality Assurance in my day job (30 years and counting.)
 
 Long before FD I performed a 24 hour endurance test on my K3
 to approximate worst-case FD conditions. I recorded a CQ FD message
 similar to the actual message we would be using at FD into one of
 the K3's message memories, then set the message repeat time to
 minimum. The K3's output power was set to 120 Watts and the rig
 was connected to a 50 ohm dummy load with a Bird thruline wattmeter
 in line. The DC input voltage was set to 13.5 volts. The test was
 performed at ambient room temp, about 24 degrees C. The K3 sent
 the continuous message loop for a 24 hour period without incident.
 
 The actual environmental conditions at our FD were a bit more 
 severe than the test conditions above. The K3 was operated in a 
 4-man dome tent exposed to full sun with an outside air temp 
 approaching 90 degrees. We didn't measure the actual temperature 
 inside the tent, but my informal assessment was hot as hell. 
 Of course, the transmit duty cycle in actual FD use was less 
 demanding than the test duty cycle. I had high confidence that 
 the K3 would be up to the task, and it was.
 
 I'm sorry to hear about your failure at FD. I have heard no other
 reports of FD failures, and to my knowledge the VP6DX crew had
 no failures during their operation earlier this year. It may be 
 of small comfort to you, but I regard your failure as an anomaly
 - stuff happens. Overall, the K3 is establishing a reputation as
 a very reliable field rig.
 
 
 73,
   john  WA1ABI
 
  
 
 
 
 
  
  Has anyone done a burn in on their radios to test?  They rate to 100W
  100% duty cycle for 10 minutes.  I'm sure there is quite a bit of
  headroom in that too.  Has anyone tested to that?  Do any of the
  Elecraft guys object to that type of testing?  
  
  I had a strange failure at FD this year and worry that unless I do a
  burn in like that once it gets back that my normal amount of operation
  will take quite a while to emulate what the rig saw during field day.  
  
 
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Re: [Elecraft] For the Beancounters

2008-07-04 Thread Brett Howard
Yes I'm still working on keeping stats...

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Re: [Elecraft] K3 Burn In

2008-07-04 Thread Brett Howard
Totally agree.  I was somewhat appreciative that FD helped me find the
problem as soon as possible and was wondering if solid type TX would be
a good way to do an accelerated test.  From what I'm hearing now and I
agree a FD simulation w/ full QSK running is probably more real world.  

You are correct in that all I really want to do is find any underlying
problems quickly so that I can be assured that I'm out of the 0.1%.

From reading the list I know that the K3 is a brute and they just flat
out don't die!  I just wanna make sure that after getting one that did
that I've chased out all the demons...  :)

~Brett

On Fri, 2008-07-04 at 10:08 -0400, Don Wilhelm wrote:
 Folks,
 
 John was quite correct to term his test an 'Endurance Test'.  I have 
 worked as an Assurrance Engineer for the latter part of my career and 
 would like to offer the following:
 
 The purpose of any 'burn-in' tests for complete electronic assemblies I 
 have encountered is *not* to stress the DUT to its limits, but simply to 
 catch any early life failures that may be lurking.  Burn-in testing of 
 individual devices is different than any burn-in of a complete 
 assembly.  Simply running the assembly continuously under normal 
 conditions for a period of time is normally sufficient.
 
 Early life failures can and do occur, but they are not common.
 
 If one would want to do a 'burn-in' for the K3, I would advocate that 
 alternate receive and transmit cycles  be done over a period of a 
 several days (half max power level should be sufficient) or so (you get 
 to pick the time frame that *you* define as 'early life').
 
 Other than catching early life failures, a burn-in period for electronic 
 packages such as the K3 serve no purpose at all.  The continuous 
 operation just makes a lurking early failure happen sooner than it would 
 normally.  If you are expecting anything more from such a test, it just 
 ain't gonna happen.
 
 Of course, one can always just operate it as normal for the first 30 to 
 90 days and regard any failure that occurs as an early life failure - 
 that works just as well as continuous operation.
 
 We did hear of one K3 that failed during Field Day, but there are over 
 1000 K3s out there, and an early life failure rate of less than 0.1% is 
 very good, even though it is quite disconcerting to find oneself in that 
 small percentage region.
 
 73,
 Don W3FPR
 
 John King wrote:
  Disclaimer - the following test method is not approved or 
  sanctioned by Elecraft. Conduct any testing at your own risk.
 
  I work in Quality Assurance in my day job (30 years and counting.)
 
  Long before FD I performed a 24 hour endurance test on my K3
  to approximate worst-case FD conditions. I recorded a CQ FD message
  similar to the actual message we would be using at FD into one of
  the K3's message memories, then set the message repeat time to
  minimum. The K3's output power was set to 120 Watts and the rig
  was connected to a 50 ohm dummy load with a Bird thruline wattmeter
  in line. The DC input voltage was set to 13.5 volts. The test was
  performed at ambient room temp, about 24 degrees C. The K3 sent
  the continuous message loop for a 24 hour period without incident.
 
  The actual environmental conditions at our FD were a bit more 
  severe than the test conditions above. The K3 was operated in a 
  4-man dome tent exposed to full sun with an outside air temp 
  approaching 90 degrees. We didn't measure the actual temperature 
  inside the tent, but my informal assessment was hot as hell. 
  Of course, the transmit duty cycle in actual FD use was less 
  demanding than the test duty cycle. I had high confidence that 
  the K3 would be up to the task, and it was.
 
  I'm sorry to hear about your failure at FD. I have heard no other
  reports of FD failures, and to my knowledge the VP6DX crew had
  no failures during their operation earlier this year. It may be 
  of small comfort to you, but I regard your failure as an anomaly
  - stuff happens. Overall, the K3 is establishing a reputation as
  a very reliable field rig.
 
 

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Re: [Elecraft] Band button

2008-07-05 Thread Brett Howard
Sorry for the added bandwidth but for worry of the rig getting broken I
vote to no have a fix implemented.  In my mind I consider the 20 meter
band below the 10 meter band.  So yes when I press DOWN on a band switch
I expect to go to lower frequencies.  I'm sure there are many who think
I'm dumb for it but I do believe that the 20 meter band is BELOW the 10
meter band.

On Sat, 2008-07-05 at 12:54 +, Brian Alsop wrote:
 Don ,
 
 I agree we think in bands.  That's why the band button arrows ought to 
 do the right thing.
 
 Here is the situation now:
 I want to go from 20 to 10 meters.  I have to press the DOWN button to 
 go from 10 --20.  Doesn't makes sense by any thought process.
 Last I knew they still teach counting UP as  0, 1, 2, 3 10 20.
 
 The DOWN arrow changes FREQUENCY down.That's why frequency is the 
 right label.
 
 Sure it is a nit.  However, more than half the time I end up going the 
 wrong direction because I think in bands and conventional count 
 directions..
 
 73 de Brian/K3KO
 
 
 
 Don Wilhelm wrote:
 
  Your lexicon must be quite different than mine.  In my 54 years of 
  association with ham radio, we have had Amateur Bands.  Why would 
  one want to label the device that changes between these bands as a 
  frequency switch?  The VFO changes frequency, the band switch 
  changes bands.
 
  You are free to re-label yours -- just don't do the same to mine.
 
  73,
  Don W3FPR
 
  K3KO wrote:
 
  This isn't just the K3.  Other radios have the same problem.   It 
  seems to be
  a mistake that persisted through the years.
 
  The button marked band with up and down arrows really is frequency.
 
  You push the up arrow and the band goes down.  Press down arrow and band
  goes up.
 
  It would be nice to have this fixed in the K3.  No hope for other 
  radios.
 
  Right now I have a white sticky label with freq on it pasted over the 
  band
  marking.
   
 
 
 
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Re: [Elecraft] K3 OWNER’S MANUAL ERRATA

2008-07-06 Thread Brett Howard
You need to do the rotation while still holding the knob in.

On Sun, 2008-07-06 at 07:31 +0100, Dave G4AON wrote:
 and ALT2. To save a filter
 setup, hold NORM until you see - SAV - (3 seconds), then rotate
 the 
 knob left or right to save it as ALT1

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Re: [Elecraft] Broken Threads

2008-07-06 Thread Brett Howard
Now we've got 3 separate threads asking people not to have separate
threads...  How ironic...  :)


On Sun, 2008-07-06 at 07:30 -0400, George Victor wrote:
 Hi Folks,
 Please don't take this the wrong way, this is just my opinion.
 
 I feel that if a thread is started, all of the related replies should
 be kept within that particular thread.
 That makes the thread easier to read and the whole mail system more
 clean and organized.
 
 Just looking back a couple of days:
 We have -
 
 2 threads on k2 Diversity (with 4 messages in each)
 3 threads on K3 and HRD (6 in one 1 in the other and 1 called Ham
 Radio Deluxe With K3)
 2 threads on Bail Height
 2 on New Zealand WOW
 3 on AF Gain Delay
 And now we have 4 separate threads going on Band Button.
 
 Wouldn't be better, easier to follow and messages would not be lost if
 the broken threads were combined?
 
 Just my 2¢,
 George
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Re: [Elecraft] K3: KRX3 question

2008-07-06 Thread Brett Howard
I find that the narrower filters take out a lot of the noise before it
hits the DSP and it can even make just rag chew conditions nicer in my
very electrically noisy area.  Actually I'm quite excited that once I
get my K3 back that I can set the 250Hz filter to be able to use it up
at 350.  I even am adding the 1Khz filter as the step in the noise when
switching from my 250Hz to my 1.8Khz was pretty large.  

Honestly I'm not so sure that the 1.8 is really all that much of a help
over the 2.7 but the 250 is a big help over the 2.7 and the 1.8.  Plus I
just like having the radio do all the intelligent rock switching.  Makes
it a very nice combination and mixing of the old way of doing things and
the new way of doing things.

On Sun, 2008-07-06 at 13:56 +0100, David Cutter wrote:
 I think I must be missing something.
 
 As I understand it, the additional crystal filters are only really necessary 
 when operating with very strong adjacent signals in the passband.  So, if 
 you don't have a need for rejection of such strong signals, let's say 40 
 over S9 (somebody correct this figure please) then you don't need these 
 extra filters, the DSP will cope with these large signals.  The filters are 
 only there to prevent overload of the DSP.
 
 Therefore, to perform the very best diversity reception in 40 over S9 
 conditions, turn off those extra filters in configuration menu.
 
 Having turned off the filters, I can engage the attenuator to avoid DSP 
 overload if needed.  Yes, I know it also reduces the signal I'm trying to 
 hear, but that sacrifice may be what is needed.
 
 For diversity reception using low gain loop, pennant, flag, Beverage, loaded 
 whip antennas, the signal input is very much lower than from the tx antenna, 
 so, crystal filters are probably not be needed at all.
 
 Or do I have it all completely wrong?
 
 David
 G3UNA 
 
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RE: [Elecraft] K3: KRX3 question

2008-07-07 Thread Brett Howard
Being tha t it was mentioned that best responses seem to be with a
roofing filter wider than 300Hz and then he mentioned the 250Hz filter
wouldn't you deduce that he meant the 370Hz filter which Elecraft calls
250Hz?  I mean maybe I'm jumping to conclusions here but that was pretty
clear to me.


On Mon, 2008-07-07 at 15:27 -0700, Bill W4ZV wrote:
 
 
 Joe Subich, W4TV-3 wrote:
  
  
  Bill, 
  
  David you may be suggesting that in theory but I would pay
  *close attention* to what W0YK says.  Ed wins many RTTY contests 
  including several current world records from P49X, and results 
  sometimes speak louder to me than theory (and I'm an engineer 
  if that means anything).
  
  Ed and I had an extensive off-line discussion concerning the K3 
  filter options and RTTY.  We both made multiple measurements of 
  the composite bandwidth (roofing filter, DSP and dual passband 
  filter) with several settings.  The consensus is that the 200 Hz 
  DSP settings work as long as the roofing filter is more than 250 
  Hz wide.
  
 
 That's interesting since there isn't a 250 Hz roofing filter.  There's a 370
 Hz and a 224 Hz, but no 250 Hz.  What did you use for the 250 measurement
 above or is that a calculated result?  At any rate, I'll defer to Ed since
 he's forgotten more about RTTY than I'll ever know, as his contest results
 demonstrate.  ;-)
 
 73,  Bill
 
 

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RE: [Elecraft] K3: KRX3 question

2008-07-07 Thread Brett Howard
Direct quote from the message:

Much of the narrowing is due to the very humped (Gaussian) 
nature of the narrow crystal filters but the best responses 
for RTTY seem to be with a roofing filter wider than 300 Hz 
(the 250 Hz/8-pole) and/or keeping the DSP filter wider than 
250 Hz with or without the dual passband filter.  Note: Ed uses 
the 250 Hz filter with his 200 Hz DSP setting. 

He says that the roofing filter needs to be wider than 300 and he thus
used the 250Hz filter with a 200Hz DSP filter setting.  Its simply put
that the roofing filter needs to be wider than 300 and he therefore uses
the 8-pole 250 Hz filter which it seems clear you know is 370Hz and
therefore fits the build of what is required.  Then behind that he has a
200Hz filter at the DSP IF.  

On Mon, 2008-07-07 at 16:35 -0700, Bill W4ZV wrote:
 
 
 Brett Howard wrote:
  
  Being tha t it was mentioned that best responses seem to be with a
  roofing filter wider than 300Hz and then he mentioned the 250Hz filter
  wouldn't you deduce that he meant the 370Hz filter which Elecraft calls
  250Hz?  I mean maybe I'm jumping to conclusions here but that was pretty
  clear to me.
  
 
 That's a good assumption but not what he said.  In other areas of his
 message, Joe was careful to say 250 (meaning Elecraft's nomenclature) or
 370, but the what he actually wrote is:
 
 The consensus is that the 200 Hz DSP settings work as long as the roofing
 filter is more than 250 Hz wide.
 
 I suspect much of this is academic anyway.  If you have an extremely strong
 signal 250 Hz from your center frequency, NO filtering is going to solve
 issues like the other guy's TX noise, although a narrower XFIL may sometimes
 help with desense.  At least on CW that's the advantage I see with the 200,
 but also remember that we also have a 50 Hz DSP in our ears which helps on
 CW (but not on RTTY).
 
 73,  Bill
 

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Re: [Elecraft] Low sensitivity and low power calibration failure

2008-07-08 Thread Brett Howard
This is in a completely different area but trust me on this one...  See
if you can find R66 on t he bottom of the RF board toward the right side
of the unit when you're looking at the unit from the front.  Its just
above Q8 and Q9.  Measure the resistance of R66 and post that here.

On Tue, 2008-07-08 at 03:02 -0700, OE5CSP-Chris wrote:
 I still have problems with my K3.The sensitivity is very low and I
  can´t do the low power tx calibration.
 I loaded the latest
 firmware and checked all the settings again and
 again.
  Gary Surrency, from the elecraft support, suggested to do a few
 measurements.These are the results.A friend
 helped me, because I don´t have an rf-probe myself.The results are at the
  end of this page!
  Garry is on a trip and he´ll be back on Thursday, so he can´t help me
 now.I´ve got enough time to do some repair work and any help would be
 appreciated.
 
  
   111mV RMS at the center pin of coax jumper from the KREF2 board, that
  goes into RF board connector J65.
  
   37mV RMS on the right pin on both sides of the crystal filter pins.
  
   346mV RMS at the BPIF jumper to the left of the KNB3 board.
  
   189mV RMS at jumper W4 near the KIO3. This may be a jumper wire that is
  plugged into J64A on later sn. K3s.
  
   176mV RMS at P71A pin 3 on the LPA.This is near the left rear of the
  LPA, right across from the KIO3 board. Pin 1 is to the rear.
  
   15.5V RMS at P71C pin 1 on the LPA. This connector is at the rear of the
  LPA board. Pin 1 is on the left.
  
   Examine the parts and connections under the RF Board in the bandpass
  filter area, to see if there are any poorly soldered or damaged parts.
  
  
   My results:
   Board connector J 65 shows 35-40mV. All other measurements were 0.
   My friend thinks it´s maybe a problem with the 2nd mixer.We also looked
  for damaged parts but we could not find any.
  
   Can you help?
  
  
   vy73 Chris-OE5CSP
 
  
  -- 
  73 Richard AD7FZ
  Elecraft Support
  support

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RE: Re: [Elecraft] Hearing the effect of narrower roofing filter

2008-07-08 Thread Brett Howard
I agree with this assessment and when I get my rig back plan on upping
my 250 filter to kick in at 350.  But I had 4dB of gain on the 250 and
it still seemed like things got a lot quieter when switching to the 250.
I'd have to measure and see if I had the actual same level there (and I
can do that now that I have the XG2) :)  But I did have 4dB thrown
in for good measure! :)  I found myself using the 250 all the time for
rag chewing... But I use 250 on my K1 for its lowest filter position
too..  

I tend to generally like things pretty quiet.  I use 850 for scanning
the band (as that is as wide as the K1 can go).  I use 500 to 550 for
calling CQ if they're further away than that then I guess I don't get to
hear them... And then I crank it down to 200 to 250 when I'm talking
with a guy.  It not only ensures that I'm pretty close to zero beat with
him but also makes things quieter and gets rid of a lot of the
electrical hash I have in my area.  The K1's noise blanker doesn't hold
a candle to the noise in my area but the K3 was doing a pretty fantastic
job! 

On Tue, 2008-07-08 at 08:02 -0700, Dick Dievendorff wrote:
 A couple of related points, which may not be new news to anyone:
 
 You can set the K3's filter bandwidth configuration to cause the roofing
 filter to switch at points other than the bandwidth printed on the filter.
 Maybe you would like your (nominally) 500 Hz filter to switch in at 450 or
 550 Hz.  My 8-pole 250 Hz filter is a bit broader than 250 Hz, and I've set
 it to switch at 300 Hz.  
 
 You can also turn off a filter (set its bandwidth to zero temporarily) to
 evaluate whether a change you're hearing is due to the roofing filter or the
 change in bandwidth provided by the DSP.
 
 And you should attempt to adjust the filter gain compensation so that there
 is no change in the volume of the note you're tuned to.  Rene, who guides
 the assembly of K3s built by Elecraft, told me that he uses a voltmeter on
 the speaker terminals when adjusting the gain compensation and can get
 usually get within a half decibel.
 
 I notice a definite qualitative change as the narrower filters switch in. It
 sounds quieter, and it seems like the volume is being turned down. I think
 I'm responding to the reduced low and high frequency components that are
 supposed to be cut off.  The DSP-related changes seem more gradual. 
 
 Dick, K6KR
 
 
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Darwin, Keith
 Sent: Tuesday, July 08, 2008 7:43 AM
 To: elecraft@mailman.qth.net
 Subject: RE: Re: [Elecraft] Hearing the effect of narrower roofing filter
 
 Not sure, David, if your Q was to me or to Hank.  I can only answer for
 me.
 
 When I adjust the filter width knob, I'm most definitely hearing the
 combined effect of the DSP bandwidth reduction and the change in roofing
 filters.  But, since I can change DSP without changing the roofing
 filter (by stepping from 1500 Hz down to 550 Hz) I can get a good feel
 for how the DSP filter sounds.  Then, stepping to 500 Hz, I can see the
 combined effect of one more DSP step plus the insertion of the 500 Hz
 roofing filter.  The observed big change from 550 Hz to 500 Hz is
 *mostly* due to the roofing filter.
 
 - Keith N1AS -
 - K3 711 -
 
 Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of
 [EMAIL PROTECTED]
 
 Fine observations when you change the filter setting knob, but what
 makes you think you are hearing the effect of the roofing filter and not
 the dsp filter?  
 
 David
 G3UNA
 
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 6:33 AM
 
 
 
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RE: [Elecraft] Low sensitivity and low power calibration failure

2008-07-08 Thread Brett Howard
Ok then so you don't have that problem...  Do you have an oscilloscope
handy?  Or can you take a measurement with your RF probe on pin 6 of the
reference board?  Take a measurement on both pin 6 and pin 8 of the
connector where the reference board meets up with the RF board if you can...

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of OE5CSP-Chris
Sent: Tuesday, July 08, 2008 9:51 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Low sensitivity and low power calibration failure




?This is in a completely different area but trust me on this one...  See
if you can find R66 on t he bottom of the RF board toward the right side
of the unit when you're looking at the unit from the front.  Its just
above Q8 and Q9.  Measure the resistance of R66 and post that here.

Hi Brett,

R66 is about 15.3 ohm


73, Chris
-- 
View this message in context:
http://www.nabble.com/Low-sensitivity-and-low-power-calibration-failure-tp18
335793p18343812.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: [Elecraft] Need help operating K3 with Yaesu Quadra amplifier

2009-09-14 Thread Brett Howard
No actually you have to set the tun pwr config setting to NOR (I
believe) in order to get that to happen...

On Mon, 2009-09-14 at 11:10 -0700, Ken Roberson wrote:
 Jim,
 This will key the K3 and it will put out whatever power you
 have it set for, I set mine for 55 watts.
 73 Ken K5DNL

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Re: [Elecraft] Fw: SWR Readings

2009-09-16 Thread Brett Howard
You sure you have the ANT setting on the correct antenna?

On Wed, 2009-09-16 at 07:49 +0100, John Francis wrote:
 
 
 When I tap ATU I get a SWR reading on all bands except when I am on 80mtrs.  
 where all I get  is - - ,  
 
 I was getting a SWR reading on 80mtrs but this has now disappeared.  Wonder 
 if any K3/100 user has any idea how I can get the SWR readings back.  The SWR 
 on 80 mtrs is in fact OK,  just that there is no reading on the rigs screen 
 display.
 
 John G3LWI
 
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Re: [Elecraft] K3 firmware preview: Much-improved receive AF bass response

2009-09-18 Thread Brett Howard
I'm still field testing 3.20 I think it is as that one accidentally
had the better LF response...  I had to go back when it got taken
away...  Looking forward to getting the more NR options AND LF response!

Thanks Elecraft!

~Brett

On Thu, 2009-09-17 at 23:50 -0700, PA3CW wrote:
 Hello Wayne,
 
 I am realy interested to fielt test the next release with the audio
 improvements. Please add met to the list of testers please .  Many thanks,
 
 Dick PA3CW
 
 
 wayne burdick wrote:
  
  The next K3 beta firmware release will include dramatically better  
  bass response in receive mode (50-200 Hz). The result is fuller,  
  richer audio, which many of you have asked for.
  
  Lyle (KK7P) and I are completing the full beta test suite, and hope to  
  do the release early next week. But we could also use a couple of  
  volunteers--who really like low bass--to try the field-test release.
  
  73,
  Wayne
  N6KR
  
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Re: [Elecraft] K3: Make Monitor level track AF level?

2009-09-18 Thread Brett Howard
This was asked for in the past and it turns out that more people wanted
it the way it is at the moment but it was not really a landslide it was
fairly balanced. 

Personally I agree and would like the option to have it track the AF
knob.  But this hasn't really risen to the top of the list (if it even
made the list) considering that it was the less popular option last
time.

~Brett

On Fri, 2009-09-18 at 13:35 -0500, Randy Farmer wrote:
 I'm finally coming to terms with K3 3260, born July '09. It's at last 
 fully integrated into the station, and the diversity receive 
 capability just blows what's left of my mind. This thing is like a 
 race car: it rolls off the trailer pretty damn fast, but once you 
 start fine-tuning it it just gets better and better. To further 
 belabor the race car analogy, my trusty old FT-1000D is like a NASCAR 
 stocker, big and heavy but a bulletproof performer. The K3 is like an 
 Indycar or a Formula I car, maybe somewhat more delicate and fussy, 
 but able to perform at a considerably higher level once it's set up 
 and the driver learns to get the most from it.
 
 Now that I (mostly) know how to operate the K3, I suppose I'm 
 qualified to start picking nits about how certain things work. The 
 thing that bothers me the most is the Monitor function, especially 
 for CW. For any serious DX or contest work I always use headphones, 
 but I sometimes like to just grab the paddle and work somebody using 
 the station speaker. I normally keep the Monitor level set at about 
 20-25, since that's what I find most comfortable when I'm using 
 headphones. When I'm using the speaker, I can hardly hear the 
 sidetone or the spot tone. If I go ahead and crank up the Monitor 
 level to where I can hear it in the speakers, the next time I use 
 headphones I'll forget to readjust the level and the sidetone will 
 practically rip my head off. Unfortunately, the Monitor level is 
 independent from the AF level so just turning down the volume, which 
 I always do when using phones, doesn't keep me from getting blasted.
 
 What I would like to see would be a firmware change that allows the 
 Monitor level to be adjusted to a percentage of the main receive 
 level, or perhaps set to a specific offset value in dB, such that the 
 relative levels between the main audio and the monitor signal always 
 track as the AF control is varied. I take the audio from the K3 rear 
 panel SPKRS jack to route into my station audio switching for either 
 the headphones or the speaker, so I would rather see it done this way 
 than by making a Monitor level change when the hardware detects that 
 the phones have been plugged in.
 
 I've looked through the reflector archives and can't seem to find any 
 posts that address my concern. That doesn't mean there aren't any; I 
 just didn't see them. Does this suggestion sound like a useful 
 firmware tweak to anyone else here?
 
 73...
 Randy, W8FN
 
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[Elecraft] WTB: K3 13Khz Filter and/or BCB-BPF

2009-09-18 Thread Brett Howard
I've been considering just ordering one on the site... Not really a
need as I've already got the 8 filters in there that I like but I
wouldn't mind being able to get the radio totally open just to allow for
maximum flexibility.

If anyone has a Broadcast Band BPF or a 13Khz filter that is surplus to
their needs I'd may be interested.

~Brett

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[Elecraft] K1 NB Modification

2009-09-18 Thread Brett Howard
I remember somewhere on the net reading about some mods to make the
K1-NB a little bit more aggressive.  I've been unable to find this as of
late and would like to in the event that a few free moments presents its
self in the next month or so...

Anyone recall where that may be?

~BTH (KC7OTG)

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Re: [Elecraft] K3 firmware 2 years on and still much to do

2009-09-19 Thread Brett Howard
I think most who feel they have to have buttons for all bands and what
not haven't really spent much time learning the newer interface as
recalling the memories as band switch is quite fast.  Then if you use
the M1-M4 as mode switch it puts you in the right frequency area and
puts you in the right mode.  Its very quick.  

As far as those who want the P3 the rig and a power supply all in one
box they'd be the same ones complaining when something broke and they
had to ship all that rig back to California.  I personally don't mind a
few extra cables and some modularity.  

~BTH

On Sat, 2009-09-19 at 10:35 -0400, Joe Subich, W4TV wrote:
  The band switching, VFO management, mode switching and many 
  aspects of its front panel design needs a rework. Most of the 
  contest operators that I know seem to own a FT2000, they will 
  all acknowledge that its no  K3, however they all feel the 
  same as I do about the K3 and its ergonomics.
 
 Having used the FT-1000D, Mark V, and FT-2000 series of radios 
 for nearly 20 years before moving the K3, the front panel 
 design and ergonomics issues are completely bogus.  There 
 are other transceivers with user interfaces very similar to 
 the K3 - including some from Yaesu - and, while different than 
 the FT-990/1000/2000/9000 the K3 User interface is no less usable. 
 
 Anyone who makes the size/user interface argument is simply 
 making an excuse for not learning a new user interface based 
 prejudice.  Any contester or DXer who uses one of the popular 
 contest or day to day logging packages with point and shoot 
 features is insulated from the transceiver's user interface 
 to such an extent that the differences among user interfaces 
 is largely irrelevant anyway. 
 
 73, 
 
... Joe, W4TV 
  
 
 
  -Original Message-
  From: elecraft-boun...@mailman.qth.net 
  [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of juergen piezo
  Sent: Saturday, September 19, 2009 6:42 AM
  To: Elecraft@mailman.qth.net
  Subject: Re: [Elecraft] K3 firmware 2 years on and still much to do
  
  
  K3 firmware 2 years on and still much to do?
  
  I  still dont own a K3. I just cant bring myself to  buy the 
  K3 because 
  of its front panel layout and its operation. Although I would 
  very much like its receiver performance. 
  
   I have used one at a contest station and all that I can
  say is that I would not buy one until a new front panel layout is 
  designed. 
  
  The band switching, VFO management, mode switching and many 
  aspects of its front panel design needs a rework. Most of the 
  contest operators that I know seem to own a FT2000, they will 
  all acknowledge that its no  K3, however they all feel the 
  same as I do about the K3 and its ergonomics. Most of us are 
  just not portable operators, so dont need small size 12 volt radios.
  
  There are many good radios that  would be a good front panel 
  design model for the K3a. The FT950, FT920, Icom 737series, 
  TS850 etc all have a very workable ergonomic front panel 
  layouts that are easy to use. The FT950 is so well layed out 
  and very attractive and it would be  a good one to copy for a 
  new K3 front panel.
  
  If the K3 is so modular, why would it be so hard not to  
  offer a bigger box with a new front panel? There are many off 
  the shelf 19 inch rack 
  boxes that could be used with a new front panel styling. 
  
  I would suggest that a new K3 panel  with built in P3, power 
  supply and 200 watt PA stage would be a big hit.  Everyone 
  seems to be so over the moon with the K3's small size, I must 
  be a freak with alien genes to not like the radios front 
  panel  layout and operational ergonomics.
  
  The firmware feature list or lack of progress I can live 
  with. However a awkward  panel layout and poor ergomics thats 
  carved in rock I cant really live  with.  When I used the K3 
  all that I ever used was the band switch, volume and RIT 
  control thats all, just like a Mil-spec radio.  It was  
  very hard to do otherwise, so I probably missed a lot of the 
  K3's potential. 
  
  I too live in hope that a new K4 is coming! I could even live 
  with a K3 junior with one receiver and a new front panel design.
  
  John
  
  --- On Sat, 9/19/09, Dave G4AON elecr...@astromag.co.uk wrote:
  
   From: Dave G4AON elecr...@astromag.co.uk
   Subject: [Elecraft] K3 firmware 2 years on and still much to do
   To: elecraft@mailman.qth.net
   Date: Saturday, September 19, 2009, 1:58 AM
   Unfortunately the K3 firmware seems
   to have wandered off track a bit,
   two years ago when the K3 started rolling out the following were on 
   the to do list and formed part of the specification:
   
   0.5 ppm TCXO calibration
   Synchronous AM
   
   These might not be the most important issues in the world, but were
   included in the original specification and are in the Oct
   24th 2007 B1
   manual. Currently the K3 fails to meet specification!
   
   Can we have some indication 

Re: [Elecraft] K1 NB Modification

2009-09-19 Thread Brett Howard
hrm...

I could have swore that there was a set of mods that would allow one to
modify the blanking time and what not a bit...  

I'm finding it ineffective in power line noise and would like to try and
make it more so.  However if I end up with the time to do it I'll
probably not have enough time nor repeatable enough condx to test a
whole lot.

~BTH

On Sat, 2009-09-19 at 12:00 -0400, Mike Morrow wrote:
 I remember somewhere on the net reading about some mods to make the
 K1-NB a little bit more aggressive. 
 
 I've never come across anything like that in the almost nine years that I've
 had my K1.  I've found the KNB1 to be effective on spark-type noise, but
 not at all effective on local power line noise.  The NB on my old TS-50S is,
 in contrast, very effective on that same power line noise.
 
 The KNB1 has only the OFF, HI, LO noise threshold settings.  Obviously,
 the blanking is *least* effective in the HI setting since the noise magnitude
 has to exceed a higher value to trigger the noise gate, compared to when
 the LO threshold is selected.  The only construction option provided is
 changing D2 from the normal 1N4148 to an LED to raise the threshold in HI
 to require an even *higher* noise pulse magnitude before the the noise gate
 will trigger.
 
 The early KNB1 is identcal to the current KNB1, except that it wasn't
 provided with a 0.01 uF cap between U1 pin 1 and pin 8.  Without that
 cap, gosh-awful noise is generated on some frequencies in the 20m
 band (at least) as the K1 transitions between transmit and receive.
 Anyone whose early KNB1 is without this cap should install it.
 
 Of course, that cap has no effect on setting the noise gate trigger threshold.
 That's determined only by RP1(9-10), RP2(5-6), and D1 when on LO, plus
 D2 when on HI.
 
 BTW, the K1 Quick Reference has for almost a decade now said that the
 KNB1 menu selections are OFF, NB1, NB2 instead of the correct OFF, HI, LO.
 
 Mike / KK5F
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Re: [Elecraft] K3 Audio Response - Version 3.33 Firmware

2009-09-20 Thread Brett Howard
So I think I may have found a strange bug.  Please someone tell me if
you can reproduce it. 

With the latest 3.33 pre-released test I am unable to set the top two
knobs to HI/LOW adjustments.  However this problem is only present when
the radio is in the CW mode.  When in this mode tapping the HI/BW knob
doesn't change it between modes.  

~Brett (KC7OTG)

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Re: [Elecraft] K3 Audio Response - Version 3.33 Firmware

2009-09-20 Thread Brett Howard
Ah yes it does look like that is the case.  Went back and read it and it
clearly states (there are some limitations at present).  Thats somewhat
of an esoteric one...  Wonder if at some point it can be supported.
Seems like it was a difficult one to figure out at the time so rather
than dig into that section of and update it to support the new shift it
was just disabled.  Its been fun watching this thing grow...

~BTH 

On Sun, 2009-09-20 at 06:07 -0700, Lyle Johnson wrote:
  With the latest 3.33 pre-released test I am unable to set the top two
  knobs to HI/LOW adjustments.  However this problem is only present when
  the radio is in the CW mode.  When in this mode tapping the HI/BW knob
  doesn't change it between modes.  

 
 When CONFIG PB CTRL CHIFT=.01 you can;t use HI CUT/LO CUT IF SHIFT=.05 
 (default), then you can.  See Release notes for 3.25/2.21.
 
 73,
 
 Lyle KK7P
 


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Re: [Elecraft] [K3] K3 Audio Response - Version 3.33 Firmware

2009-09-20 Thread Brett Howard
Yes but unless the response remains that way when an 8 ohm speaker is
there its not a very useful measurement.

~BTH

On Sun, 2009-09-20 at 07:56 -0700, Ignacy wrote:
 Is this measured with high impedance probes? If I remember correctly, small
 caps limit low-frequency response of K3 especially with low impedance
 phones/speakers.
 Ignacy
 
 
 As a further experiment, I just added 3 dB to Rx bands 1-3 and the response
 is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through the 6K
 filter and Fc = 1.35.  You can lay the ruler flat on the response.
 
 http://216.229.20.37/images/K3-V333-EQ.jpg
 
 Paul, W9AC 
 
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Re: [Elecraft] [K3] K3 firmware 2 years on and still much to do

2009-09-20 Thread Brett Howard
Personally I have one folder that the list as a whole is filtered into
then I have another folder that any @elecraft.com or lyle's email
address go into.  

You can do this with gmail using the label's.  This is how I do it.  If
you want further help on how to make it go let me know and I can
elaborate.

~BTH


On Sun, 2009-09-20 at 15:36 -0700, Julian, G4ILO wrote:
 One of the many suggestions I have made over the years which have been
 ignored like most of the others is that Elecraft set up an
 elecraft-announce
 list that only Eric, Wayne and Lyle can post to, and everyone else can
 just
 subscribe to. I believe that would address your issue. 

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[Elecraft] K3 Feature Idea

2009-09-21 Thread Brett Howard
Not too long ago there was some debate about the Fast QSY function that
can be used if you set VFO OFS = 1.  

There were those who feel that the fast QSY function should *not* clear
the LSB's so that if you use it (or perhaps accidentally bump it) you
have an easier time getting back to the frequency that you were
previously on.  

However there are those who have grown accustomed to the M.CH knob on
Kenwood rigs that allow for 1Khz movement but it *does* clear the LSB's
and allows you to tune the band in a channelized fashion.  Personally I
kinda wish that we'd use the band in a more random fashion and less like
CBer's but thats just me... ;)

Any way I had a thought.  Being that the CLR button has no function when
the user is simply listening with RIT and XIT off why not have that
button clear the 3 LSBs.  That way if you want the first scenario
mentioned above you simply grab the knob and crank away.  However if you
prefer the second scenario you only have tap that CLR switch.  This is a
very simple action and one can hit this button in the same motion while
reaching for the knob.

Anyone have thoughts?

~Brett


PS:  Sorry for more nit picks on the K3 guys but honestly I think we're
at this level now...  For me the K3 works wonderfully.  Granted I know
that with this group out here there will be more great ideas and some
more big exciting firmware releases are on the way!  Sometimes its hard
to come up with solutions that keep everyone happy.  Here is my attempt
at one.

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Re: [Elecraft] K3: IF output buffer gain modification

2009-09-22 Thread Brett Howard
Are there any thoughts as to the accuracy level in dBm in correlation
with this mod?  As well as any sort of absolute accuracy specs on what
we expect to see with this box?

On Tue, 2009-09-22 at 16:58 -0700, Alan Bloom wrote:
 On Tue, 2009-09-22 at 19:08 -0400, amstel78 wrote:
 
  So would it be advisable to wait for the P3 to come out before
  performing this modification?  If it's not really needed, then what's
  the point?  My antenna system isn't that great anyway...
 
 I need to do some more experimenting to get a better handle on this, but
 I think it just depends on conditions.  With the K3 preamp off on a
 quiet band (e.g. VHF) you definitely want the mod.  On 80 meters in the
 summertime it's not necessary.  If you don't do the mod you might need
 to use the preamp more often than you otherwise would.
 
 There's no reason not to do the modification other than the hassle
 factor.  The P3 automatically bypasses its own preamplifier if the
 signal starts to over-range.
 
 Alan N1AL
 
 
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Re: [Elecraft] K3 VHf use

2009-09-23 Thread Brett Howard
You guys know that there is also a feature that will automatically
correct for this offset when changing modes.  It automatically uses your
pitch frequency as the offset.  It was released several versions ago.
Read through the release notes and you'll find it in there.

~Brett

On Tue, 2009-09-22 at 19:55 -0700, Jessie Oberreuter wrote:
 As a frequent VHF contester, I know what you mean!  Fortunately, 
 there is a setting on the K3 that lets you simply send CW while in SSB 
 mode, and it takes care of all of the offsets for you!  Alas, I don't 
 recall what it is, but it was added to the firmware several months ago. 
 Try it!  You'll like it!
 
 
 
 
 On Tue, 22 Sep 2009, Maarten wrote:
 
  Yes I figured that one out. Going from SSB to CWrev I still have to retune
  (+600Hz) to copy CW as the CW signal is at zero beat. Going from CW to SSB I
  have to tune 600Hz down.
  If you work VHF/UHF you understand what a convenience it is when you change
  from SSB to CW mode, that the zero beat frequency shifts by whatever your
  selected CW pitch is so you do not have to retune again.
 
  Maarten N1DZ
 
  -Original Message-
  From: Radio Amateur N5GE [mailto:n...@n5ge.com]
  Sent: Tuesday, September 22, 2009 7:46 PM
  To: Maarten
  Cc: elecraft@mailman.qth.net
  Subject: Re: [Elecraft] K3 VHf use
 
  On Tue, 22 Sep 2009 19:01:27 -0400, Maarten n...@cox.net wrote:
 
  Since one week I am a K3 owner with the KXV3A option. When hooking up the
  XV50,144,222,432 transverters I noticed that the only option with the K3
  and
  the KXV3A is separate transmit and receive IF ports. Is there a setting in
  the K3 to share a single IF port for TX and RX? It would save me some
  cables.
 
 
 
  Also is there a setting in the K3 that when one switches from SSB to CW the
  frequency is automatically adjusted for the CW offset. This is really handy
  for VHF/UHF work as there is often a mix of SSB and CW signals during band
  openings. One often switches from SSB to CW for a weak CW DX signal. It is
  very frustrating having to retune the weak station when switching modes.
  The
  Icom 756 and Flexradio PowerSDR have this option. The K3 with the excellent
  XV transverters should have this option available too.
 
 
 
  73 Maarten N1DZ
 
  __
  [snip]
 
  When using the K3 to switch between USB and CW you must set the CW
  offset to CW REV by holding the ALT button which will switch the CW
  output to USB.  The normal CW offsets to LSB.  That is why you are
  having to retune.
 
  Tom, N5GE
 
  n...@n5ge.com
  K3 #806, K3 #1055, PR6,
  XV144, XV432, KRC2,
  W1 and other small kits.
 
  2 W2's on order
  1 K144XV on order
 
  http://www.n5ge.com
  http://www.swotrc.net
 
 
 
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Re: [Elecraft] K3: IF output buffer gain modification

2009-09-23 Thread Brett Howard
If it were within +/- 2.0dB absolute accuracy I'd be tickled pink.
However your comments about spectrum analyzers today are a bit dated.
Power meters are becoming much less crucial for getting accurate
readings.  

We just bought a new spectrum analyzer from Agilent which with all the
options we got only cost around 55,000.  This unit is an N9020A and its
very accurate.  Their specification is +/- .23 dB absolute accuracy and
it matches with our power meter dead nuts on.  The thing even has a 35dB
preamp with 10dB NF built in and it covers almost the full bandwith of
the unit (100Khz to 13.6Ghz).  The unit itself can measure down to 3Hz.

Its not that I needed to understand what went into the calculation and
while the question may have sounded ignorant I was more looking for a
value than an explanation why it was worse than some may have thought I
was looking for.

~BTH

On Tue, 2009-09-22 at 20:40 -0700, Al Lorona wrote:
  Are there any thoughts as to the accuracy level in dBm in correlation
  with this mod?  As well as any sort of absolute accuracy specs on what
  we expect to see with this box?
 
 The absolute accuracy will almost certainly not be better than about +/- 2.0 
 dB... which is the best that spectrum analyzers from RohdeSchwarz, Agilent, 
 and others could do.
 
 Most people are quite surprised to hear that their US$70,000 spectrum 
 analyzer could be off by 2.0 dB. But that is the reality. An error analysis 
 of a spectrum analysis measurement is well-known:  frequency response, 
 mismatch, IF gain (reference level), and calibrator uncertainty all come into 
 play. The result is somewhere in the neighborhood of +/- 1.8 dB or worse. 
 That is considered quite good! When making a relative measurement (the 
 difference between two signals) it's even worse. For more information and 
 specific examples, see 
 http://cp.literature.agilent.com/litweb/pdf/5968-3659E.pdf .
 
 The main thing to remember is that a panadaptor display is good, but it's not 
 absolutely accurate in power. If you need excellent power accuracy, you must 
 use a power meter. 
 
 There are a lot of stages before the P3 panadaptor that conspire to increase 
 the measurement uncertainty. Consider that before the signal even reaches the 
 receiver it has already undergone the loss in the transmission line and the 
 connectors. Do you know exactly how much loss you have in your transmission 
 line and connectors? Following this, the signal then hits the receiver input 
 which is not exactly 50 ohms. It could be 20. Or 90. Because it's not exactly 
 50, there is mismatch uncertainty. Already two errors right there.
 
 On the inside of the rx, there are a number of switches, cables, and bandpass 
 filters (with amplitude ripple), then an attenuator and RF amp, mixer, and 
 post-mixer amp.  Take the attenuator for example. It might claim that its 
 loss is -10 dB, but that's a nominal value that will actually be different 
 for every K3. Each of the stages mentioned has an uncertainty in its gain, 
 loss, or match which must be added to the total uncertainty. 
 
 So these are all of the errors that add up to the figure I quoted at the 
 outset. You might have better accuracy that this, but the point is you won't 
 know if you do, so you must assume the worst case. 
 
 Al  W6LX
 
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Re: [Elecraft] K3 VHf use

2009-09-23 Thread Brett Howard
Excellent post!  I was trying to remember where this was but wasn't
remembering off the top of my head.  Thanks for providing that for these
guys.  I think there are a good number of K3 users out there that wish
they had a feature to do that one thing that bugs them and little do
they know that there is something just for them in the rig  They've
just yet to stumble across it.

We need more posts like this!

~BTH

On Wed, 2009-09-23 at 00:15 -0400, Richard Ferch wrote:
 Maarten,
 
 There are two related but different configuration options for the 
 situation you describe. The first option lets you use your CW paddles or 
 key while the radio is in SSB mode. The newer option (so far in beta 
 firmware only) adjusts the offset so that when you switch modes from SSB 
 to CW, you do not have to retune the radio.
 
 The first one is documented in the current Owner's Manual; it is called 
 CW-in-SSB. Quoting from the K3 Firmware Release Notes for firmware 
 version 1.87:
 
 CW KEYING IN SSB MODES:  While in SSB modes, you can now send CW 
 without changing modes or using an offset. The other station will hear 
 the signal at your CW pitch. This is especially useful on VHF bands when 
 SSB signals can’t be copied. To enable this feature, go into CONFIG:CW 
 WGHT and tap '1' until you see SSB +CW.
 
 You can also use this option for cross-mode QSOs. Interfaced logging 
 software will record the QSO as an SSB QSO, since the radio is still in 
 SSB mode.
 
 The second option was added in firmware beta release 3.19 and is not yet 
 in the Owner's Manual. From the K3 Firmware Release Notes:
 
 AUTOMATIC CW VFO OFFSET ON MODE CHANGE: Allows switching quickly 
 between SSB and CW mode without either you or the other station
 having to re-tune the VFO (often done on 6 meters and transverter 
 bands). First, locate CONFIG:CW WGHT and tap '5' on the keypad until you 
 see VFO OFS. From then on, when switching to CW mode from any other
 mode, the VFO will be offset by an amount equal to your sidetone pitch
 (as set using the PITCH switch in CW mode). If the sideband most 
 recently used on this band is USB, the VFO will be shifted UP; if it was 
 LSB, the VFO will be shifted DOWN.
 
 Note: If you make frequent use of this feature, you may want to
 use CW reverse on bands where you use USB, and CW normal
 on bands where you use LSB. This results in perfect pitch matching
 when listening to a CW signal and switching from SSB to CW.
 
 You must download and install beta release firmware 3.19 or newer to use 
 this option; I believe it will be included in the next regular 
 production release.
 
 73,
 Rich VE3KI
 
 
 
 
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