date:20100418

Hello all,

I still get ERR TXG and at same time, because lack of external antennas,
I could not get the melthod 2 (zero-beating) on page 50 of Owner's
Manual. Is there any other method to calibrate the Reference Oscillator
using a computer ???

Any help will be welcome here, tks.

CT1DRB
David Quental

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Re: [Elecraft] K2 Encoder problems continue.

2010-04-18 Thread Geoffrey Mackenzie-Kennedy

Nidge,

Thanks for your reply.

Unfortunately I do not know enough about Hamradio Deluxe nor its interface 
with the K2, but rightly or wrongly I assume that if the radio works 
properly under computer control, then the MCU (U6) is working as it should 
during this mode of control.

I cannot shake my hunch that something is pulling down to near ground either 
the ENC A or the ENC B lines (or both) when the MCU is in place. If the 
encoder is an optical type, then under such a fault condition I would not be 
too surprised if the voltage on ENC RD also dropped to near ground - which 
is what you have measured at U3 pin 14. It would be worthwhile to make some 
resistance measurements between these three lines and ground, with the power 
off - MCU in place and MCU removed.

Not to be overlooked is the possibility that the fault might be mechanical. 
For instance if a small sliver of solder had worked its way into the MCU's 
socket, it might create a short when the MCU chip is in place - but open 
when the chip is removed.

Good luck.

73,
Geoff
GM4ESD


On Saturday, April 17, 2010, at 11:13 PM, Nidge (Nigel Smith) wrote:

 Hi Don and Geoff

 Thanks for the replies both.

 First of all Geoff: I'm afraid I don't have a scope here anymore.  I did
 remove the MCU
 and checked the voltages, and this time on pin 14 of U3 I had the correct
 voltage close
 to 3.8V, with the MCU inserted it was below 100mV.

 The radio, when connected to Hamradio Deluxe works fine under computer
 control, both
 on receive and transmit.  The filters are off but that's because I'm 
 unable
 to fine tune them
 as the encoder isn't working.





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Re: [Elecraft] KPA500 active devices!!

2010-04-18 Thread Tom W8JI


The VRF2933 is rated 3:1 Load VSWR Capability at Specifi ed 
Operating
Conditions according to its datasheet; perhaps that's why 
there no
built-in ATU.

.but that doesn't mean SSB IMD would be acceptable, or 
it would be safe in every circuit at that mismatch, so keep 
that in mind. :-)

No matter what the data sheets say about device life, the PA 
often needs to be kept within 1.5:1 or better SWR to meet 
IMD specs. 3:1 is a huge loadline move, depending on the 
direction of the impedance move it could really put the PA 
into severe flattopping. Use a tuner or fix the antenna, be 
safe.

73 Tom

On Sat, Apr 17, 2010 at 6:44 PM, Doug Faunt N6TQS 
+1-510-655-8604
fa...@panix.com wrote:
 There are two VRF2933's in push-pull, so they're not 750 
 watts each,
 but per pair.  There are only three amps in existance, and 
 no devices have
 been destroyed (yet).  Again, 500 watts is a very 
 conservative rating.
 It's been key-down for 10 minutes withy no problems.

 73, doug
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Re: [Elecraft] K2 Encoder problems continue.

2010-04-18 Thread Nigel (Nidge) Smith

Hi Geoff.

It is a real puzzler.  I have checked the voltages on the encoder
and these switch between 4.95V and 100mV when the shaft
is rotated slowly, they don't alternate between each other but
are in sync.  It is possible to change the frequency using the
encoder but only by a small amount and only if the shaft
is spun quickly.

Resistance readings between the 5V supply pin and
the Enc A/B are infinate or beyond the range of my
Fluke 77 meter in one polarity and 3.9MOhm in
the other.

Between Enc A/B it is 8,2MOhm and Infinate
when changing polarity.

Between 5V pin and Enc-enable it is between
4.2MOhm and infinate when changing polarity

Enc A and Enc-enable between 8.15MOhm
and infinate when changing polarity.

Enc B and Enc- enable between 8MOhm and
infinity when changing polarity.

All measurements done with the encoder in
cct.

I have a friend just round the corner from me who
is in the process of building a K2 (has been for
quite a whlie :-) ) so we have arranged to do
some testing this afternoon with his control
and display boards.  He also has a suitable
scope so hopefully I will be able to test the function
of the MCU also.   I also have a Dataman S4 programmer
so the possibility of reflashing the firmware may exist, though
this may be a last resort as I wouldn't want to corrupt his
radio as well.

Again thanks to all on the reflector who have responed.

Will update later today once the comparison tests have been
conducted.

Regards

Nidge (G0NIG)

IO93dv




- Original Message - 
From: Geoffrey Mackenzie-Kennedy gm4...@btinternet.com
To: Nidge (Nigel Smith) nig_sm...@o2.co.uk
Cc: Elecraft Discussion List elecraft@mailman.qth.net
Sent: Sunday, April 18, 2010 11:08 AM
Subject: Re: [Elecraft] K2 Encoder problems continue.


 Nidge,

 Thanks for your reply.

 Unfortunately I do not know enough about Hamradio Deluxe nor its interface
 with the K2, but rightly or wrongly I assume that if the radio works
 properly under computer control, then the MCU (U6) is working as it should
 during this mode of control.

 I cannot shake my hunch that something is pulling down to near ground 
 either
 the ENC A or the ENC B lines (or both) when the MCU is in place. If the
 encoder is an optical type, then under such a fault condition I would not 
 be
 too surprised if the voltage on ENC RD also dropped to near ground - which
 is what you have measured at U3 pin 14. It would be worthwhile to make 
 some
 resistance measurements between these three lines and ground, with the 
 power
 off - MCU in place and MCU removed.

 Not to be overlooked is the possibility that the fault might be 
 mechanical.
 For instance if a small sliver of solder had worked its way into the MCU's
 socket, it might create a short when the MCU chip is in place - but open
 when the chip is removed.

 Good luck.

 73,
 Geoff
 GM4ESD


 On Saturday, April 17, 2010, at 11:13 PM, Nidge (Nigel Smith) wrote:

 Hi Don and Geoff

 Thanks for the replies both.

 First of all Geoff: I'm afraid I don't have a scope here anymore.  I did
 remove the MCU
 and checked the voltages, and this time on pin 14 of U3 I had the correct
 voltage close
 to 3.8V, with the MCU inserted it was below 100mV.

 The radio, when connected to Hamradio Deluxe works fine under computer
 control, both
 on receive and transmit.  The filters are off but that's because I'm
 unable
 to fine tune them
 as the encoder isn't working.











No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.801 / Virus Database: 271.1.1/2818 - Release Date: 04/18/10 
07:31:00

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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread Don Wilhelm

Joseph,

Since you have a good frequency reading at TP3, the PLL Reference 
Oscillator is working, and the problem is in the area of Q18.  So we 
move the problem area on the schematic to the upper right corner of the 
RF Board schematic sheet 1.
Note that the VFO output goes through U3 before it gets to TP1, so try 
reading the VFO frequency at U3 pin 3.  If you have a good reading there 
(reading should be 4915 kHz higher than the frequency displayed on the 
K2 dial for all bands below 15 meters).

Since it worked once, the most likely problem is soldering, so re-flow 
the connections with a hot (750 deg F) iron.
There is a possibility that Q17 was damaged by static during 
construction and failed later.  As a test, short Q17 drain to its source 
and see if the VFO starts oscillating (you can accomplish the same thing 
by temporarily shorting lead #3 of T5 to ground).

Count the turns on T5 carefully and look critically at the soldering of 
the T5 leads.  If there is a visible ring around the lead, it was not 
well tinned - it has been said that solder connections should look like 
mountains, but *not* volcanoes, and that is an apt description of the 
condition I am referring to.  The same thing applies to all solder 
connections, not just toroid leads.  The solder should flow out on both 
the solder pad and the component lead to an almost invisible edge.  If 
the solder looks more like a ball than a nice smooth fillet, it is 
likely that the connection did not receive enough heat.  If there is too 
much solder, use solder wick to remove some of it.  With thru-plated 
holes on the boards, the amount of solder required is only enough to 
fill the hole, although I like to see a very small fillet too. Neither 
the board or the component will be damaged with normal soldering 
temperatures maintained for up to 5 or 10 seconds, although you should 
use an iron temperature that produces a good solder connection in 2 to 3 
seconds.  If it takes longer than that, the iron is too cold, and if the 
solder flows in less than 2 seconds, the iron is too hot.  Watch for the 
solder to *flow*, not merely to melt.

73,
Don W3FPR



Foxjazz wrote:
 Hello Don,

 Don, the call was in the subject line.

 Sorry for the confusion. I had the pll circuit working great with all
 alignments before starting on phase 3 and putting the ssb board in.

 As far as checking parts, the parts were correct when I checked them
 the second time, and the pll circuit was working.

 tp3 reads within tolerance.  Unfortunately I broke the agc gain
 transistor handling the control board, so have to replace. But that
 shouldn't affect my issue.

 I was doing some voltage readings and found an issue on u5 on the rf
 board. pin 1 was 5 volts.

 U6: pin 5 was 4v on and 8 was 8 volts.

 tp3 reads good, and checked good. However sometimes it feels as if it
 doesn't check good because the band - doesn't keep the freq down on
 occasions.

 N0XDB
   
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[Elecraft] Voice Announcement

2010-04-18 Thread Toby Pennington

I think a word of caution might be in order here.  I am not sure if Elecraft 
will add voice announcement or not.   It is a good feature and found on many 
rigs today.  

However,  the K3 would not be my choice for a blind ham or a soon to be blind 
ham.   I believe an older rig where all the knobs and buttons are for single 
use purpose would be a lot better.  Not to mention a rig where there are not 
menus or not many menus might be more appropriate.   

I had enough trouble figuring out how to operate a K3 (especially using the 
menus and memory ) and I can still see.  

I would not know for sure what to recommend for a blind ham,   but it sure 
would not be the K3.  

Toby  W4CAK
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Re: [Elecraft] k2 pll and ref osc issues n0xdb


I concur. It's not kosher under any circumstances to post someone else's
personal information without their permission. Security isn't a trivial
matter on the Internet these days.

73,
LS
W5QD
-- 
View this message in context: 
http://n2.nabble.com/k2-pll-and-ref-osc-issues-n0xdb-tp4919117p4920780.html
Sent from the [K2] mailing list archive at Nabble.com.
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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread Joe Planisky

Do note that Foxjazz himself included his call in the subject line  
of the post that started this thread.  Not the usual place to be sure,  
but I doubt his intention in doing so was to remain anonymous.

73
--
Joe KB8AP


On Apr 17, 2010, at 11:58 PM, The Smiths wrote:

 For you to not only give out someone's call sign, but to actually go  
 as far as print out their entire name for everyone on this group to  
 read,
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Re: [Elecraft] k2 pll and ref osc issues n0xdb


It doesn't matter - it's 100% improper to post personal information for
someone else, even if that information is obtainable elsewhere. It's up to
N0XDB to post his/her name if he/she so chooses, not Don or anyone else.

As I said, personal privacy isn't a trivial matter, particularly these days.

If I see this happen again, I'll be leaving the reflector. 

73,
LS
W5QD
-- 
View this message in context: 
http://n2.nabble.com/k2-pll-and-ref-osc-issues-n0xdb-tp4919117p4920855.html
Sent from the [K2] mailing list archive at Nabble.com.
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Re: [Elecraft] No transmitter gain.

2010-04-18 Thread john

On 4/17/2010 11:30 PM, David Quental wrote:
 Hello again,

 apart I do not get the transmitter gain on K3 Utility, doing the
 transmitter gain on page 49 from Owner's Manual I get 0.0 watts in all
 frequencies, however when I press ATU TUNE I get 5.0 watts.

 Any help will be welcome.

 Best 73.

 CT1DRB
 David Quental

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David-
 Have tried to adjust the WMTR LP or HP in the Config menu?  I had 
email Elecraft about using low power for QRP Contest and they advised me 
to adjust this setting for low power.  They told me that
the normal setting is 70 but to achieve what I wanted I have my WMTR LP 
setting on 180 and my WMTR HP setting on 145.  I did this because the 
power reading from radio was not the same as what showed
on my external watt meter.  Now they are pretty close.  Not for sure if 
this helps in your question but maybe.

John
KM5PS
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Re: [Elecraft] KPA500 active devices!!

2010-04-18 Thread Matt Palmer

Well said tom, an often overlooked aspect is the angle of the
mismatch, load pull is the only way to tell, while a 3:1 resitive is
not to harsh, very few things will survive a 3:1 at an inductive
reactance angle. Load pull is the only way to be sure, and I would be
uncomfortable making any claims until such a test has been done.


Matt
W8ESE
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Re: [Elecraft] Re： News from Visalia! (:-))

A number I heard was $2000.,  but I have to admit, I don't recall who
said it.

I didn't ask about K2 interfacing, but since it's got the serial port
interface, I suspect it'll work fine.

Apparently it can follow the transceiver by either reading the serial
port or by watching the drive frequency (frequency counter).
Note that all of this is preliminary, and anything can change to some
degree.

Oh, and it's got front panel band buttons, one for each band, and
using them changes the band on the K3, also.  So now, band buttons for
your K3.

And it's possible that Elecraft won't actually produce a tuner
themselves, but will make interfacing informattion available for
others to do something that will work cleanly.

73, doug

   Date: Sun, 18 Apr 2010 09:08:58 +0800 (HKT)
   From: Johnny Siu vr2...@yahoo.com.hk

   Hello Doug,

   Any idea about the likely pricing.  I am really looking for a linear that I 
can service it myself.

   Can I suppose KPA500 will work with both K2 and K3?

   73

   Johnny VR2XMC



   - éµä»¶åä»¶ 
   å¯ä»¶äººóðõ Doug Faunt N6TQS +1-510-655-8604 fa...@panix.com
   æ¶ä»¶äººóðõ cr...@powersmith.net
   å¯æ¬(CC) elecraft@mailman.qth.net
   å³éæ¥æóðõ 2010/4/18 (æ¥) 5:49:44 AM
   ä¸»é¡óòú Re: [Elecraft] News from Visalia! (:-))

   Rumor level now-
   The modular jack on the back is currently undefined, but is NOT just
   an extension of the K3 ACC connection.  An ATU connnected there was
   mentioned.  And, as I said, there's a button with an ATU label.

   The most knowledgeable person is no longer here, but the active devices are
   apparently a pair of 750W devices running at 60VDC.

   And it MAY deliver power without a ATU as well as some units that
   have an ATU.

   Delivery- end of this year.
   that's all for now.

   73, doug

   From: Craig D. Smith cr...@powersmith.net
   Date: Sat, 17 Apr 2010 13:13:23 -0600

   Only room for so much stuff in a K3 sized box.  I like the built-in 
Power
   Supply and the 500 W design point.  And, I'm even thankful that there 
isn't
   a built-in tuner, as it holds out the possibility of an external 500W
   Elecraft tuner!  Make it remotable, capable of driving a balanced or
   unbalanced load and weatherproof, please  ;)





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Re: [Elecraft] Voice Announcement

2010-04-18 Thread Thomas Norff

Blind person often use a PC with a reading software (OT 'to read to
someone' - no single word for that ?)
combined with a braille display.
Creating an application using the available software - simple GUI, readable
by the reading software, assessable by function/cursor keys - and
abstracting the K3 to their ability could be a 'solution'.

Anyone interested to start a conversation about that ?

73 de Thomas, DM7TN

PS: Doesn't have to be limited to the K3 ... one GUI for many TRX ... just
dreaming  ;o)



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Toby Pennington
Sent: Sunday, April 18, 2010 2:51 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] Voice Announcement

I think a word of caution might be in order here.  I am not sure if Elecraft
will add voice announcement or not.   It is a good feature and found on many
rigs today.  

However,  the K3 would not be my choice for a blind ham or a soon to be
blind ham.   I believe an older rig where all the knobs and buttons are for
single use purpose would be a lot better.  Not to mention a rig where there
are not menus or not many menus might be more appropriate.   

I had enough trouble figuring out how to operate a K3 (especially using the
menus and memory ) and I can still see.  

I would not know for sure what to recommend for a blind ham,   but it sure
would not be the K3.  

Toby  W4CAK
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Re: [Elecraft] No transmitter gain.

Hello John and other Elecrafters,
 
tks for your email. I did what you advice me but no luck, still no power
except when use ATU, there is really 5 watts output, on XMIT no power in
all bands.

Best 73 to all.

CT1DRB
David Quental

 On 4/17/2010 11:30 PM, David Quental wrote:
   
 Hello again,

 apart I do not get the transmitter gain on K3 Utility, doing the
 transmitter gain on page 49 from Owner's Manual I get 0.0 watts in all
 frequencies, however when I press ATU TUNE I get 5.0 watts.

 Any help will be welcome.

 Best 73.

 CT1DRB
 David Quental

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 David-
  Have tried to adjust the WMTR LP or HP in the Config menu?  I had 
 email Elecraft about using low power for QRP Contest and they advised me 
 to adjust this setting for low power.  They told me that
 the normal setting is 70 but to achieve what I wanted I have my WMTR LP 
 setting on 180 and my WMTR HP setting on 145.  I did this because the 
 power reading from radio was not the same as what showed
 on my external watt meter.  Now they are pretty close.  Not for sure if 
 this helps in your question but maybe.

 John
 KM5PS
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Re: [Elecraft] Another method to calibrate reference oscillator in K3.

2010-04-18 Thread Dick Dievendorff

It sounds like you might be confusing TX Gain cal with Ref  
Calibration. All you need for TX gain calibration is a dummy load. Can  
you perform the TX gain cal on all bands manually? This is the manual  
procedure where you press tune on all bands.

I'm away from home now without the Owners Manual to refer to.

Dick, K6KR


Sent from my iPhone

On Apr 18, 2010, at 3:52 AM, David Quental ct1...@gmail.com wrote:

 Hello all,

 I still get ERR TXG and at same time, because lack of external  
 antennas,
 I could not get the melthod 2 (zero-beating) on page 50 of Owner's
 Manual. Is there any other method to calibrate the Reference  
 Oscillator
 using a computer ???

 Any help will be welcome here, tks.

 CT1DRB
 David Quental

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Re: [Elecraft] Another method to calibrate reference oscillator in K3.

Hello Dick,

tks for your answer.
 It sounds like you might be confusing TX Gain cal with Ref
 Calibration. All you need for TX gain calibration is a dummy load. Can
 you perform the TX gain cal on all bands manually? This is the manual
 procedure where you press tune on all bands.
I am not confusing and performed all tests, however doing TX gain cal in
all bands manually I always get a power of 0.0 watts. I get power when
use ATU, then I see RF level that is power out. Just waiting for tips
from you and Elecraft as well.

 I'm away from home now without the Owners Manual to refer to.
Ok, no problem, it is in page 49.

 Dick, K6KR
Best 73.

CT1DRB
David Quental



 Sent from my iPhone

 On Apr 18, 2010, at 3:52 AM, David Quental ct1...@gmail.com wrote:

 Hello all,

 I still get ERR TXG and at same time, because lack of external antennas,
 I could not get the melthod 2 (zero-beating) on page 50 of Owner's
 Manual. Is there any other method to calibrate the Reference Oscillator
 using a computer ???

 Any help will be welcome here, tks.

 CT1DRB
 David Quental

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[Elecraft] KAT3 kit documentation

Just finished installing the antenna tuner kit (KAT3) in my K3 #888. The 
hardware disassembly and re-assembly instructions are, as usual, crystal-clear, 
and that went off without a hitch.

However, when it came to actually bringing the KAT3 up and getting it running, 
the supplied instructions just say refer to the K3 Manual.

The problem with that is, the K3 Manual assumes that the antenna tuner unit is 
either installed and running, or not installed -- and while most of the data 
needed for bringing up the newly added KAT3 is all in there if you hunt for it, 
it is in several different places throughout the book. And completely missing 
was the little tidbit that you have to power down the K3 and then power it back 
up to get the new KAT3 configuration settings to take -- to recognize that 
the KAT3 is now in there and enabled. Prior to doing this, I just kept getting 
this NO ATU message. (Not too hard -- only took me about 20 minutes to figure 
out to try recycling power. High duh factor there. LOL)

I think the configuration and start-up procedures should be added to the KAT3 
kit instructions, so everything is all in one place, part of the overall 
documentation set for the add-on tuner kit.

Bill W5WVO
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[Elecraft] Why manual setting for FLTX?

I moved/added some roofing filters yesterday, adding both a 6 kHz AM filter and 
the 400 Hz CW filter, moving my 2.7 kHz filter from the FL1 to the FL2 
position, and my 1.8 kHz filter from the FL2 to the FL3 position. I thought I 
understand everything I needed to do to fix all the configuration settings, but 
I forgot one thing: changing the FLTX setting for the CW mode. I thought I only 
had to do that for SSB and AM.

Turns out I was wrong, and FLTX CW was still set to FL1. The K3 manual led me 
right to the problem based on the error code I was getting, and it was easily 
fixed. Again, excellent documentation.

But this got me to thinking: Why is this a manually configurable option at all, 
when the settings are all manadatory? You MUST have SB and CW set to the 
2.7/2.8 kHz filter position, you MUST have AM set to the 6.0 kHz filter 
position, and you MUST have FM set to the 12.0 kHz filter position. So what's 
to choose? Seems like this should be automatic and hidden from the user.

Am I missing something here? Is there really a reason for it working this way?

Bill W5WVO
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Re: [Elecraft] News from Visalia! (:-))

2010-04-18 Thread John Harper

Too rich for my blood for 500w.


A number I heard was $2000.,  but I have to admit, I don't recall who
said it.

John Harper AE5X
http://www.ae5x.com/blog




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Re: [Elecraft] KAT3 kit documentation


Yeah, I found this rather opaque in the KAT3 installation docs too. When I
put mine in, I eventually happened upon what you're supposed to do in p. 47
of the owner's manual under Option Module Enables. 

I concur this should probably be clarified in the KAT3 installation manual,
with a more specific reference to the correct place in the owner's manual. I
don't recall if it specifies Option Module Enables or not, but IIRC it was
just good luck that I found it hi hi.

73,
LS
W5QD
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Re: [Elecraft] Voice Announcement

2010-04-18 Thread Mike Markowski

Thomas and everyone,

I wrote a small C program to do basic things that might also be easy to
use for someone without sight.  It could be used with text-to-speech
software.  (The dollar sign below is the command line prompt.)

  $ k2 -A
  VFO A: 14001.900 kHz
  $ k2 -B
  VFO B: 14003.470 kHz

or

  $ k2 -a 14020tune VFO A to 14.020 MHz
  $ k2 -s 2 14020  sets up a split for up 2
  $ k2 -c ab3apsends the cw AB3AP
  $ k2 -t lo   does a low power ATU tune

I'm not sure, but seems to me a GUI would not be necessary or appealing
for a blind operator?  My software is a quick hack, but with some
thought a better text interface might be created.  Along those lines,
http://hamlib.org has a rigctl command that might be an even more
general solution to the problem.

73,
Mike ab3ap

On 04/18/10 09:58, Thomas Norff wrote:
 Blind person often use a PC with a reading software (OT 'to read to
 someone' - no single word for that ?)
 combined with a braille display.
 Creating an application using the available software - simple GUI, readable
 by the reading software, assessable by function/cursor keys - and
 abstracting the K3 to their ability could be a 'solution'.
 
 Anyone interested to start a conversation about that ?
 
 73 de Thomas, DM7TN
 
 PS: Doesn't have to be limited to the K3 ... one GUI for many TRX ... just
 dreaming  ;o)
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Re: [Elecraft] News from Visalia!

2010-04-18 Thread John Fritze

I agree, yes please, a remote-able, weatherproofed 500W tuner (capable
of 160-6m) would create an instant order here too.  I have relied on
SGC tuners for many years, mobile, marine mobile and now at my small
suburban plot where I have a custom DX engineering 50+ foot vertical
with 40 radials.  The beauty of SGC tuners is they only require a 12v
source.  In every situation these tuners have performed flawlessly in
harsh environments for years.  I was planning on getting a 500W Tokyo
Hi Power amp at Dayton this year, but seeing the Elecraft amp, I will
wait.  The problem is that no one makes a 160-6M remote weather proof
tuner capable of 500-600 watts which only needs 12v.  SGC's 500 watt
tuner doesn't do 160M according to their specs.  What's a space poor
ham to do?
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Re: [Elecraft] Voice Announcement

2010-04-18 Thread Gary Lee

To all:

At the present time, there is a pc program, k3voice, which gives limited 
access to the k3 display and settings.
Elecraft plans to add access to all practical menu options in the future.
As for operating a k3 while blind, I have been doing so for two years.  The 
switchtone option is extremely helpful.
While I have not yet figured out some things like psk and rtty decoding, 
noise reduction settings, and agc settings, the rig works well, and I only 
expect it to get better.

Wayne and Eric have publicly promised access to all their rigs in the past, 
and I am confident they will come through.

Where is KenYaecom with their million dollar engineering staffs with full 
access?
I've only seen two, and rigs, and no promises, both rigs from kenwood.
Yes Tobey, you are spot on that older rigs without menus are much easier to 
operate.  However these are becoming like hen's teeth.  I recently found an 
icom 751A with voice synth and external keypad. I, of course, snapped it up.

Good discussion, let's keep it going if the list approves.
- Original Message - 
From: Toby Pennington toby...@embarqmail.com
To: Elecraft@mailman.qth.net
Sent: Sunday, April 18, 2010 8:51 AM
Subject: [Elecraft] Voice Announcement


I think a word of caution might be in order here.  I am not sure if 
Elecraft will add voice announcement or not.   It is a good feature and 
found on many rigs today.

 However,  the K3 would not be my choice for a blind ham or a soon to be 
 blind ham.   I believe an older rig where all the knobs and buttons are 
 for single use purpose would be a lot better.  Not to mention a rig where 
 there are not menus or not many menus might be more appropriate.

 I had enough trouble figuring out how to operate a K3 (especially using 
 the menus and memory ) and I can still see.

 I would not know for sure what to recommend for a blind ham,   but it sure 
 would not be the K3.

 Toby  W4CAK
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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread Don Wilhelm

No personal information was posted, it was only publically available 
information easily obtained from QRZ.com, and also in the FCC database.
I don't see that a name and call are personal information

However, it won't happen again.  If anyone wants my assistance, it will 
have to be by direct email.
d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more 
public posts after this one.
This is going to save me a LOT of time!

73,
Don W3FPR

lstavenhagen wrote:
 I concur. It's not kosher under any circumstances to post someone else's
 personal information without their permission. Security isn't a trivial
 matter on the Internet these days.

 73,
 LS
 W5QD
   
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Re: [Elecraft] Why manual setting for FLTX?

D'OH!!

Right, they're mapped only by SLOT... And the K3 has no way of automatically 
identifying which filter is which, other than what the user tells it. OK, I get 
it. Thanks. (Duh. Embarrassed.)

Bill W5WVO



From: Greg 
Sent: Sunday, April 18, 2010 9:34 AM
To: Bill VanAlstyne W5WVO 
Subject: Re: [Elecraft] Why manual setting for FLTX?


Hi Bill.  The answer is because not everyone will have those filters in the 
same slot.

73
Greg
AB7R


On 4/18/2010 7:38 AM, Bill VanAlstyne W5WVO wrote: 
I moved/added some roofing filters yesterday, adding both a 6 kHz AM filter and 
the 400 Hz CW filter, moving my 2.7 kHz filter from the FL1 to the FL2 
position, and my 1.8 kHz filter from the FL2 to the FL3 position. I thought I 
understand everything I needed to do to fix all the configuration settings, but 
I forgot one thing: changing the FLTX setting for the CW mode. I thought I only 
had to do that for SSB and AM.

Turns out I was wrong, and FLTX CW was still set to FL1. The K3 manual led me 
right to the problem based on the error code I was getting, and it was easily 
fixed. Again, excellent documentation.

But this got me to thinking: Why is this a manually configurable option at all, 
when the settings are all manadatory? You MUST have SB and CW set to the 
2.7/2.8 kHz filter position, you MUST have AM set to the 6.0 kHz filter 
position, and you MUST have FM set to the 12.0 kHz filter position. So what's 
to choose? Seems like this should be automatic and hidden from the user.

Am I missing something here? Is there really a reason for it working this way?

Bill W5WVO
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No virus found in this incoming message.
Checked by AVG - www.avg.com 
Version: 8.5.437 / Virus Database: 271.1.1/2816 - Release Date: 04/17/10 
06:31:00

  
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[Elecraft] RTTY using DATA mode on K3

2010-04-18 Thread Derek Cohn/WB0TUA

Hi Everyone,

I just bought a K3 a few weeks ago and have been using it on CW.  It's time to 
play with it a bit on RTTY.  I'm using the Tigetronics Signalink to interface 
the radio to my PC which is running MMTTY.  When I have the mode switch in the 
sideband position, copy on the laptop is just fine and the signals display 
properly on the tuning aids in MMTTY.  I read the manual pages about better 
performance if the DATA mode is selected.  I switched to the DATA mode and 
there is very little audio in the speaker and no signals displayed on the 
tuning aids in MMTTY.  No copy either.  I double-checked the data mode setting 
and it is AFSK-A which I think is correct.  I must have a setting wrong 
somewhere.  I've gone over the data section in the manual a few more times but 
don't see what I'm doing wrong.  Any ideas?

Thanks and 73,

Derek Cohn
Morse Telegraph Club - Alton Chapter
Office UD, Sine DJ
Amateur Radio Station - WBØTUA
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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread Guy Olinger K2AV

This is Elecraft's forum and they have the ultimate switch on these
things.  Having said that,  just to straighten up an injustice
here

Name and call sign is not personal information, it is a matter of public record

There is no expectation of anonymity on this reflector.  This IS a HAM
reflector, and name/callsign in the usual places is appreciated, and
usually done without any thought.  Those who don't add name and
callsign simply stand out by the omission.

It does not take much research in the archives to see that a lot of
anonymous posts are trolls, which is why it grinds on so many.

There ARE what amount to technical arguments here, but the players all
have names and callsigns, and after a while perhaps there are familiar
takes on a given individual. People are who they are.  Nothing to
hide.

Someone called Don (W3FPR) rude.  Shows what they know.  There is not
a rude bone in Don's body, and even if there were, he probably has the
all-time record for nearly perfect technical assistance and no one on
the reflector (including the Elecraft principals added together) has
his online time helping reflectorees.  Beyond that he has an almost
insane patience with individuals in situations that to me scream RTFM.

If you somehow HAVE managed to get Don riled, you ARE over the line.

He should not have to defend himself.

My name is Guy, my call sign is K2AV, and if you don't like what I've
said you can tell ME about it without wondering who I really am.

73 all

On Sun, Apr 18, 2010 at 9:51 AM, lstavenhagen lstavenha...@hotmail.com wrote:

 It doesn't matter - it's 100% improper to post personal information for
 someone else, even if that information is obtainable elsewhere. It's up to
 N0XDB to post his/her name if he/she so chooses, not Don or anyone else.

 As I said, personal privacy isn't a trivial matter, particularly these days.

 If I see this happen again, I'll be leaving the reflector.

 73,
 LS
 W5QD
 --
 View this message in context: 
 http://n2.nabble.com/k2-pll-and-ref-osc-issues-n0xdb-tp4919117p4920855.html
 Sent from the [K2] mailing list archive at Nabble.com.
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[Elecraft] remote

2010-04-18 Thread W2XB


Hello Group,
I have sucessfully setup my station for remote. Only one problem. I turn on
my K3 with the timer setting in the main menu. Turns on the rig at the
right time. Turn if of with the Utility program using PS0;. Is there any
way I can get the timer to turn on at the same time daily? Would be nice to
have a cat command to turn on the rig...

Don...w2xb
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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread ab2tc


Hi,

That would be a real shame, Don, if you were to leave the reflector. Your
postings have always been extremely helpful. Personally I am highly
suspicious of anonymous postings on ham forums. As licensed hams there is no
way for us to hide as we have it all hanging out on FCC's web site. Most of
us are posting even more information on QRZ.com and personal web sites. Why
don't you simply ignore the anonymous postings and continue to be of
assistance to everybody else?

AB2TC - Knut


Don Wilhelm-4 wrote:
 
 No personal information was posted, it was only publically available 
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information
 
 However, it won't happen again.  If anyone wants my assistance, it will 
 have to be by direct email.
 snip
 

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Re: [Elecraft] k2 pll and ref osc issues n0xdb

2010-04-18 Thread Bob

Nice going Guys!!You just killed the goose that lays the golden 
eggs.

I know where Don is coming from.  I got chastised for publishing a link 
to QRZ on a car
collector forum.  The call sign was in an e-mail and I also outed that 
person.

BS...  It is public information as was given.  If it were a SSN, drivers 
license number
or unlisted phone number then it is still personal information.

Don, I think your work load might rise actually.  You will be repeating 
the same information
more often.  Some actually do use the archives and the information will 
not be there.

73,
Bob
K2TK

On 4/18/2010 12:01 PM, Don Wilhelm wrote:
 No personal information was posted, it was only publically available
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information

 However, it won't happen again.  If anyone wants my assistance, it will
 have to be by direct email.
 d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more
 public posts after this one.
 This is going to save me a LOT of time!

 73,
 Don W3FPR

 lstavenhagen wrote:

 I concur. It's not kosher under any circumstances to post someone else's
 personal information without their permission. Security isn't a trivial
 matter on the Internet these days.

 73,
 LS
 W5QD

  

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Re: [Elecraft] Voice Announcement

2010-04-18 Thread Bob Garrett

Toby et al,

Like Gary Lee, I'm a blind ham and have been using the K3 quite successfully 
for the past two years.  As stated by others, Elecraft has promised improved 
access to the K3 for such things an the config menus.  After some initial 
sighted help to set a few of the menu settings, I've managed to utilize most 
of the features including the NB NR CW and voice memories, all split 
functions and diversity RX.  I operate 99% CW on the low bands chasing DX. 
Also, the FW upgrades are a breeze with the K3 utility.

Previously, I've owned many other rigs with menus that were much more 
difficult to use with out sighted assistance.  Some of those include: 
FT-1K-MP, MP Field, IC-756 Pro and by far the most difficult and questional 
performance was the FT-2000.

In summary, I'm delighted with the K3, its performance is outstanding, the 
support from Elecraft is great and I'm sure they will continue to improve 
the access for us blind hams.

73,  Bob K3UL

K3: 1572 and 3004 

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[Elecraft] KPA500 Option Request

2010-04-18 Thread k4tmc


 OK, to get this thread started

Since we cannot seem to get a remote version of the K2 or K3 antenna tuners, 
and one of the earlier posts about the KPA500 indicated that it may work into 
an SWR of 3:1...how about a remote version of the KPA500?  Just run a 
heavy-duty outdoor extension cord for the 120VAC power.

73,
Henry - K4TMC
K2 #3137 and K3 #98

 




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[Elecraft] K2AV Comments RE: W3FPR

2010-04-18 Thread L. T. Stem


Fellow Elecrafters,

I agree wholeheartedly with Guy's comments.

There are few HAMS here that have not had some very worthwhile help from this 
gentleman.

Don has given a great deal of his time and effort to this reflector, even to 
some of those who now are chastising him. 

Even I thought that the current situation was a very possible troll. 

I, like Guy am proud of the fact that I am a HAM and my call will be posted at 
every opportunity.

73,  Skip  WB4DAD

K2/100 #6626
K2 # 6745





  
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[Elecraft] k2 pll and ref osc issues n0xdb WTF

2010-04-18 Thread Foxjazz

All

Sorry I caused a ruckus. I understand where everyone comes from. Again
my call was in the subject line GO FIGURE.

I don't care one way or the other if Don leaves the reflector.
Elecraft has a reputation for support, unfortunately they aren't open
on weekends when I get to troubleshoot my HOBBY. This is a HOBBY, and
currently turning out to be expensive because I am frustrated with
troubleshooting the pll circuit YET AGAIN.

I went through the troubleshooting procedures again that Gary sent me
last week. I don't have good voltages on Q 18 and I don't know why.

This circuit was working well before I started on the third phase of
the project. And finished it thinking I would have a radio.

I DON'T GIVE A TOOTS BEHIND ABOUT FEELINGS, THIS IS NO PLACE FOR THEM
ANYWAY. CAN ANYONE HELP ME FIGURE OUT THIS ISSUE HERE, IF NOT I WON'T
EVER POST HERE AGAIN. I THOUGHT IT WAS A PLACE I COULD RECEIVE SOME
HELP OVER THE WEEKEND WHEN THE SHOP IS CLOSED.

SHOULD I HAVE BOUGHT A TEN-TEC?

I am not too upset yet, but damn if I could just get some freaken
help. I have a degree in EET, and know my way around a circuit.
Unfortunately I have been out of the business for 15 years.

What should I do, take a few days off and stay on the phone with
Elecraft while they are open for business?







-- 


mailto:fo...@foxjazz.net


Sunday, April 18, 2010, 10:50:04 AM, you wrote:

 Nice going Guys!!    You just killed the goose that lays the golden 
 eggs.

 I know where Don is coming from.  I got chastised for publishing a link
 to QRZ on a car
 collector forum.  The call sign was in an e-mail and I also outed that
 person.

 BS...  It is public information as was given.  If it were a SSN, drivers
 license number
 or unlisted phone number then it is still personal information.

 Don, I think your work load might rise actually.  You will be repeating
 the same information
 more often.  Some actually do use the archives and the information will
 not be there.

 73,
 Bob
 K2TK

 On 4/18/2010 12:01 PM, Don Wilhelm wrote:
 No personal information was posted, it was only publically available
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information

 However, it won't happen again.  If anyone wants my assistance, it will
 have to be by direct email.
 d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more
 public posts after this one.
 This is going to save me a LOT of time!

 73,
 Don W3FPR

 lstavenhagen wrote:
    
 I concur. It's not kosher under any circumstances to post someone else's
 personal information without their permission. Security isn't a trivial
 matter on the Internet these days.

 73,
 LS
 W5QD

      
    
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Re: [Elecraft] News from Visalia! (:-))

2010-04-18 Thread Luis V. Romero

I agree:

I can get an ACOM 1010 (admittedly, with a tube) around (below) that that
price with the handy TRI tuning and 800w to do the same thing, with
paperclip reliability to boot.  

Also, an ALS600 with the Linear Power supply, AD5X Full Break In mod and an
external bandswitching accessory plus an MFJ998 would come in considerably
under the $2,000 price.  I should know. I own this configuration and it
works wonderfully at a total cost of just under $1,800 :)

Matching boxes are nice, but they are not worth that kind of money for that
power level.  500 watts in kit form with a under $1,100 price point makes
much more sense in today's economic environment, with the added advantage of
me being able to build and service it (although the Ameritron is very simple
inside, easy to service and I don't have to build it, for two hundred
dollars more!).

Sorry, but the Kool Aid seems to be starting to taste a little bitter.

-lu-w4lt- 



Date: Sun, 18 Apr 2010 09:50:25 -0500
From: John Harper j...@ae5x.com
Subject: Re: [Elecraft] News from Visalia! (:-))
To: Elecraft elecraft@mailman.qth.net
Message-ID: 000501cadf06$7b260ed0$0301a...@john
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original

Too rich for my blood for 500w.


A number I heard was $2000.,  but I have to admit, I don't recall who
said it.

John Harper AE5X
http://www.ae5x.com/blog

No virus found in this outgoing message
Checked by PC Tools AntiVirus (6.1.0.25 - 6.14780).
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[Elecraft] CONFIG: WMTR Settings

2010-04-18 Thread Roy Morris

I have calibrated the WMTR LP and WMTR HP settings over and over again until I 
am ready to pull (what remains of) my hair out.  This can be a frustrating 
exercise in futility if you let it get the best of you.  First, it is necessary 
to let the K3 warm up for an hour to two before starting the 5 watt and 50 watt 
calibrations on 20 meters.  These settings are heat sensitive.  One of my K3s 
has a LP of 045 and HP of 035.  My other K3 has a LP of 089 and HP of 090.  
There is no standard reading for these menu parameters.  Once these menu 
parameters are set for a 5 and 50 watt reading on a accurate external 
wattmeter, they will probably not read exactly 5 and 50 watts the next time you 
check at a later time.  When the K3 POWER is set to 100 watts, the actual 
output will be somewhere between 93 and 97 watts on the external wattmeter.  
This is normal unless the menu parameters are fudged.  I also find it necessary 
to do the WMTR LP and HP calibration BEFORE doing the TX GAIN CALIBR
 ATION.   Roy Morris  W4WFB
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Re: [Elecraft] k2 pll and ref osc issues n0xdb WTF

2010-04-18 Thread n0jrn

You probably should have stuck to your Cobra 29

As for getting help on the weekends...NOT

without Don !

Have a great day:Jerry   N0JRN


On 4/18/2010 12:47:20 PM, Foxjazz (fo...@foxjazz.net) wrote:
 All
 
 Sorry I caused a ruckus. I understand where everyone comes from. Again
 my call was in the subject line GO FIGURE.
 
 I
 don't care one way or the other if Don leaves the reflector.
 Elecraft has a reputation for support, unfortunately they aren't
 open
 on weekends when I get to troubleshoot my HOBBY. This is a HOBBY, and
 currently turning out to be expensive because I am frustrated with
 troubleshooting the pll circuit YET AGAIN.
 
 I went through the troubleshooting procedures again that Gary sent me
 last week. I don't have good voltages on Q 18 and I don't know why.
 
 This circuit was working well before I started on the third phase of
 the project. And finished it thinking I would have a radio.
 
 I
 DON'T GIVE A TOOTS BEHIND ABOUT FEELINGS, THIS IS NO PLACE FOR THEM
 ANYWAY. CAN ANYONE HELP ME FIGURE OUT THIS ISSUE HERE, IF NOT I WON'T
 EVER POST HERE AGAIN. I THOUGHT IT WAS A PLACE I COULD RECEIVE SOME
 HELP OVER THE WEEKEND WHEN THE SHOP IS CLOSED.
 
 SHOULD I HAVE BOUGHT A TEN-TEC?
 
 I am not too upset yet, but damn if I could just get some freaken
 help. I have a degree in EET, and know my way around a circuit.
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Re: [Elecraft] k2 pll and ref osc issues n0xdb


I'll stop pouring gas on this after this post, but to reiterate a few things:

Name and call sign is not personal information, it is a matter of public
record 

It's the principle involved, not the happenstance that Don simply printed
something about this person that's a matter of public record. The problem is
posting personal information about another lister _without his or her
explicit consent_ regardless of where that information was obtained. If
that's ok sometimes and not others, where do you draw the line and when? Who
draws it? Should be easy to see that this can get ugly fast - That's why
violating privacy in this manner on a public forum is (or should be) a no-no
as a matter of principle.
The fact that this has to be explained is something I find a bit worrying.

It does not take much research in the archives to see that a lot of
anonymous posts are trolls, which is why it grinds on so many. 

I see no evidence here that the original poster is a troll. This would have
to be demonstrated first before I would support censuring him as such.
Instead, he merely wasn't posting his name probably for his own reasons. If
he were otherwise engaging in troll-like behavior that would have been
another matter, but I see no evidence of that so far. It's certainly not
grounds for violating his personal privacy.

He should not have to defend himself. 

The way I see it, no one should be above the rules. You break em, you get
popped on the wrist, end of story.  I see no reason for anyone to get
special treatment. 

But that's just the way I see it, how I was raised, etc. YMMV.

Ok, I'm done.

73,
LS
W5QD

-- 
View this message in context: 
http://n2.nabble.com/k2-pll-and-ref-osc-issues-n0xdb-tp4919117p4921629.html
Sent from the [K2] mailing list archive at Nabble.com.
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Re: [Elecraft] RTTY using DATA mode on K3

2010-04-18 Thread Richard Ferch

WB0TUA wrote:

 I just bought a K3 a few weeks ago and have been using it on CW.  It's time 
 to play \
 with it a bit on RTTY.  I'm using the Tigetronics Signalink to interface the 
 radio to \
 my PC which is running MMTTY.  When I have the mode switch in the sideband 
 position, \
 copy on the laptop is just fine and the signals display properly on the 
 tuning aids \
 in MMTTY.  I read the manual pages about better performance if the DATA mode 
 is \
 selected.  I switched to the DATA mode and there is very little audio in the 
 speaker \
 and no signals displayed on the tuning aids in MMTTY.  No copy either.  I \
 double-checked the data mode setting and it is AFSK-A which I think is 
 correct.  I \
 must have a setting wrong somewhere.  I've gone over the data section in the 
 manual a \
 few more times but don't see what I'm doing wrong.  Any ideas?

Derek,

I wouldn't have said that DATA modes give you better performance 
necessarily, but using AFSK A gives you the ability to use a number of 
RTTY-specific features on the K3 that are not available in SSB mode.

In AFSK A, the default filter settings are much narrower than in LSB, so 
you don't have as much freedom to tune signals using an arbitrary audio 
frequency. Check that the PITCH setting on the K3 in AFSK A mode is 
consistent with the Mark setting in MMTTY, and that when you tune in a 
signal you tune such that the received audio mark tone lands on that 
audio frequency. To start with, I'd suggest that you turn MMTTY's AFC 
off, and use the K3's tuning knob to tune in signals - don't click with 
the mouse in the waterfall or let AFC tune to nearby signals.

73,
Rich VE3KI
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[Elecraft] In Reference to: k2 pll and ref osc issues n0xdb

2010-04-18 Thread T Gahagan

To my friends on the Elecraft reflector:

I usually sit quietly monitoring the Elecraft reflector traffic, ignoring 
most of it, but ALWAYS reading any post by W3FPR.  Don's posts have been 
very helpful to me over the past 11 years  and I know many others and I 
would not have solved some difficult technical problems without his gracious 
help. It is very sad to me that this has happened no matter who is right or 
wrong.  I would kindly ask that list members carefully consider what they 
type or saymaybe give it an hours time before hitting the send key. If 
Don leaves the reflector it is a huge loss to all of us whether members 
realize it or not.

Thanks for your time, and especially, Thanks to Don.

73,
Todd, WA7U



--
From: Sam Morgan k5oai@gmail.com
Sent: Sunday, April 18, 2010 10:40 AM
To: d...@w3fpr.com
Cc: elecraft@mailman.qth.net; lstavenhagen lstavenha...@hotmail.com
Subject: Re: [Elecraft] k2 pll and ref osc issues  n0xdb

 Don Wilhelm wrote:
 No personal information was posted, it was only publically available
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information

 However, it won't happen again.  If anyone wants my assistance, it will
 have to be by direct email.
 d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more
 public posts after this one.
 This is going to save me a LOT of time!

 I'd like to give a big shout out thanks
 to all the reflector nannys,
 for depriving myself and others on the list,
 from future opportunities to learn from Don's wealth of knowledge,
 way to go folks, you knew what was going to happen,
 before you mounted your soapboxes to beat your chests!

 yea I shouldn't have said the above,
 but it needed saying!

 /me slithers back into my rf proofed black hole
 -- 
 GB  73
 K5OAI
 Sam Morgan
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Re: [Elecraft] CONFIG: WMTR Settings

2010-04-18 Thread Bill W4ZV



Roy Morris-6 wrote:
 
 When the K3 POWER is set to 100 watts, the actual output will be somewhere
 between 93 and 97 watts on the external wattmeter. 
 

That's a net difference of 0.183 dB.  Don't confuse resolution with
accuracy.  For all practical purposes 93 Watts equals 97 Watts (unless you
work for NIST).

73,  Bill
-- 
View this message in context: 
http://n2.nabble.com/CONFIG-WMTR-Settings-tp4921613p4921696.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] RTTY using DATA mode on K3

2010-04-18 Thread Wes Stewart

I'm using the same setup.

Check the K3 pitch (Hold the Spot button) and verify that it's the same as 
the Mark setting in MMTTY.  I used 915 Hz since it's much easier on the ears 
and I can almost tune signals by ear now close enough to demodulate.  The 
downside to the lower tone is the possibility of more IMD on transmit.

Turn off Net and AFC.  I tune the K3 frequency using the MMTTY X-Y display.  
(If I could turn off the waterfall I would.)

Wes  N7WS

--- On Sun, 4/18/10, Derek Cohn/WB0TUA vibrop...@mindspring.com wrote:

 From: Derek Cohn/WB0TUA vibrop...@mindspring.com
 Subject: [Elecraft] RTTY using DATA mode on K3
 To: elecraft@mailman.qth.net
 Date: Sunday, April 18, 2010, 9:53 AM
 Hi Everyone,
 
 I just bought a K3 a few weeks ago and have been using it
 on CW.  It's time to play with it a bit on RTTY. 
 I'm using the Tigetronics Signalink to interface the radio
 to my PC which is running MMTTY.  When I have the mode
 switch in the sideband position, copy on the laptop is just
 fine and the signals display properly on the tuning aids in
 MMTTY.  I read the manual pages about better
 performance if the DATA mode is selected.  I switched
 to the DATA mode and there is very little audio in the
 speaker and no signals displayed on the tuning aids in
 MMTTY.  No copy either.  I double-checked the data
 mode setting and it is AFSK-A which I think is
 correct.  I must have a setting wrong somewhere. 
 I've gone over the data section in the manual a few more
 times but don't see what I'm doing wrong.  Any ideas?
 
 Thanks and 73,
 
 Derek Cohn
 Morse Telegraph Club - Alton Chapter
 Office UD, Sine DJ
 Amateur Radio Station - WBØTUA
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Re: [Elecraft] RTTY using DATA mode on K3

Hi Derek,

When using a computer and sound card to drive the K3 in any digital mode, 
your data mode should be set to DATA A. Somebody will correct me if I'm 
wrong, but I suspect that's your problem.

DATA A mode is basically equivalent to the USB/LSB position, except that 
equalization and compression are disabled.

Bill W5VWO


--
From: Derek Cohn/WB0TUA vibrop...@mindspring.com
Sent: Sunday, April 18, 2010 9:53 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] RTTY using DATA mode on K3

 Hi Everyone,

 I just bought a K3 a few weeks ago and have been using it on CW.  It's 
 time to play with it a bit on RTTY.  I'm using the Tigetronics Signalink 
 to interface the radio to my PC which is running MMTTY.  When I have the 
 mode switch in the sideband position, copy on the laptop is just fine and 
 the signals display properly on the tuning aids in MMTTY.  I read the 
 manual pages about better performance if the DATA mode is selected.  I 
 switched to the DATA mode and there is very little audio in the speaker 
 and no signals displayed on the tuning aids in MMTTY.  No copy either.  I 
 double-checked the data mode setting and it is AFSK-A which I think is 
 correct.  I must have a setting wrong somewhere.  I've gone over the data 
 section in the manual a few more times but don't see what I'm doing wrong. 
 Any ideas?

 Thanks and 73,

 Derek Cohn
 Morse Telegraph Club - Alton Chapter
 Office UD, Sine DJ
 Amateur Radio Station - WBØTUA
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Re: [Elecraft] RTTY using DATA mode on K3

Looks like I am off-base here. Please disregard my post, Derek.
Bill W5VWO

--
From: Bill VanAlstyne W5WVO w5...@cybermesa.net
Sent: Sunday, April 18, 2010 12:27 PM
To: Derek Cohn/WB0TUA vibrop...@mindspring.com; 
elecraft@mailman.qth.net
Subject: Re: [Elecraft] RTTY using DATA mode on K3

 Hi Derek,

 When using a computer and sound card to drive the K3 in any digital mode,
 your data mode should be set to DATA A. Somebody will correct me if I'm
 wrong, but I suspect that's your problem.

 DATA A mode is basically equivalent to the USB/LSB position, except that
 equalization and compression are disabled.

 Bill W5VWO

 --
 From: Derek Cohn/WB0TUA vibrop...@mindspring.com
 Sent: Sunday, April 18, 2010 9:53 AM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] RTTY using DATA mode on K3

 Hi Everyone,

 I just bought a K3 a few weeks ago and have been using it on CW.  It's
 time to play with it a bit on RTTY.  I'm using the Tigetronics Signalink
 to interface the radio to my PC which is running MMTTY.  When I have the
 mode switch in the sideband position, copy on the laptop is just fine and
 the signals display properly on the tuning aids in MMTTY.  I read the
 manual pages about better performance if the DATA mode is selected.  I
 switched to the DATA mode and there is very little audio in the speaker
 and no signals displayed on the tuning aids in MMTTY.  No copy either.  I
 double-checked the data mode setting and it is AFSK-A which I think is
 correct.  I must have a setting wrong somewhere.  I've gone over the data
 section in the manual a few more times but don't see what I'm doing 
 wrong.
 Any ideas?

 Thanks and 73,

 Derek Cohn
 Morse Telegraph Club - Alton Chapter
 Office UD, Sine DJ
 Amateur Radio Station - WBØTUA
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[Elecraft] AFSK in DATA A mode

2010-04-18 Thread Monty Shultes

When you first select AFSK the filters will be set to dual pass-band with 
narrow widths.  Tuning is sharp.  The tone pitches are set in the CONFIG menu, 
I believe.  You can change the filter setting to anything you want.  My K3 will 
not transmit PSK31 in LSB/USB, just a steady tone.  (I do have MIC+LIN IN set 
to on in Menu and this may cause this.  Not sure.) I must be in DATA A to 
transmit.

Monty  K2DLJ
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[Elecraft] Elecraft K3 Frequency Memory Editor

2010-04-18 Thread Sam Morgan

With each new release
are we suppose to
first remove the old one (using control panel)
and then install the new version?
-- 
GB  73
K5OAI
Sam Morgan
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[Elecraft] Voice Announcement

2010-04-18 Thread Toby Pennington

Gary and Bob,  I was not aware of any programs available like you have just 
posted.  I think that is just great,  and my hat is off to you both being 
sight impaired and operating the K3.

The thought did come to me that someone who is sighted could set the rig up 
and get it ready for operation,   but without the voice announcement you 
could get very confused in a hurry.  So I am glad that at least some of the 
functions are capable of being announced.

Most of the Icoms will announce the s meter, frequency, and mode,  but will 
not announce the individual function buttons.  Some of the other brands do 
this also.

I stand corrected,  and glad you fellows came out with your personal 
operating situations with the K3.

Toby  W4CAK

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Re: [Elecraft] Voice Announcement

2010-04-18 Thread Bill W4ZV


I must add a few words about my blind Topband buddy K3UL.  Bob is an
excellent operator and one of the top low band DXers on worldwide with over
300 confirmed on 160.  He even goes on occasional DXpeditions to ZF2UL.  Bob
also does some of his own tower work even though he's totally blind.  Here's
an interesting comment from Earl K6SE (now SK) from a few years ago:

http://lists.contesting.com/archives//html/Topband/2004-03/msg00213.html

If you follow these rules, you can very accurately design a shunt feed
system.  Of the many requests I've had, one I remember best is Bob's,
K3UL.  He asked me what the parameters might be for his tower (shunt wire
spacing, tie point and value of gamma capacitor), so I modeled his
structure and e-mailed the details to him.  Bob installed the shunt feed
on his tower and e-mailed back to me that it was right on the money. 
What was so gratifying about this is that Bob is a blind amateur and did
the work himself.  He now has one of the biggest signals on Topband from
the east coast here on the west coast.

The next time you think you can't do something...just remember Bob!

73,  Bill  W4ZV




Bob Garrett wrote:
 
 Toby et al,
 
 Like Gary Lee, I'm a blind ham and have been using the K3 quite
 successfully 
 for the past two years.  As stated by others, Elecraft has promised
 improved 
 access to the K3 for such things an the config menus.  After some initial 
 sighted help to set a few of the menu settings, I've managed to utilize
 most 
 of the features including the NB NR CW and voice memories, all split 
 functions and diversity RX.  I operate 99% CW on the low bands chasing DX. 
 Also, the FW upgrades are a breeze with the K3 utility.
 
 Previously, I've owned many other rigs with menus that were much more 
 difficult to use with out sighted assistance.  Some of those include: 
 FT-1K-MP, MP Field, IC-756 Pro and by far the most difficult and
 questional 
 performance was the FT-2000.
 
 In summary, I'm delighted with the K3, its performance is outstanding, the 
 support from Elecraft is great and I'm sure they will continue to improve 
 the access for us blind hams.
 
 73,  Bob K3UL
 
 K3: 1572 and 3004 
 
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-- 
View this message in context: 
http://n2.nabble.com/Voice-Announcement-tp4920737p4921812.html
Sent from the [K3] mailing list archive at Nabble.com.
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Re: [Elecraft] KPA500 - A bit more info


Do we know yet what the drive requirements will be? I.e. will 10 watts drive
it to full output?

Too bad I don't have an ant. hi hi...

73,
LS
W5QD
-- 
View this message in context: 
http://n2.nabble.com/KPA500-A-bit-more-info-tp4917585p4921822.html
Sent from the [QRO] mailing list archive at Nabble.com.
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Re: [Elecraft] k2 pll and ref osc issues n0xdb WTF

2010-04-18 Thread Foxjazz

Hello n0jrn,

DON'T BE STUPID AND BLAME ME FOR DON NOT READING THE SUBJECT OF THE
EMAIL.


-- 


mailto:fo...@foxjazz.net


Sunday, April 18, 2010, 12:00:32 PM, you wrote:

 You probably should have stuck to your Cobra 29

 As for getting help on the weekends...NOT

 without Don !

 Have a great day:            Jerry           N0JRN


 On 4/18/2010 12:47:20 PM, Foxjazz (fo...@foxjazz.net) wrote:
 All
 
 Sorry I caused a ruckus. I understand where everyone comes from. Again
 my call was in the subject line GO FIGURE.
 
 I
 don't care one way or the other if Don leaves the reflector.
 Elecraft has a reputation for support, unfortunately they aren't
 open
 on weekends when I get to troubleshoot my HOBBY. This is a HOBBY, and
 currently turning out to be expensive because I am frustrated with
 troubleshooting the pll circuit YET AGAIN.
 
 I went through the troubleshooting procedures again that Gary sent me
 last week. I don't have good voltages on Q 18 and I don't know why.
 
 This circuit was working well before I started on the third phase of
 the project. And finished it thinking I would have a radio.
 
 I
 DON'T GIVE A TOOTS BEHIND ABOUT FEELINGS, THIS IS NO PLACE FOR THEM
 ANYWAY. CAN ANYONE HELP ME FIGURE OUT THIS ISSUE HERE, IF NOT I WON'T
 EVER POST HERE AGAIN. I THOUGHT IT WAS A PLACE I COULD RECEIVE SOME
 HELP OVER THE WEEKEND WHEN THE SHOP IS CLOSED.
 
 SHOULD I HAVE BOUGHT A TEN-TEC?
 
 I am not too upset yet, but damn if I could just get some freaken
 help. I have a degree in EET, and know my way around a circuit.
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Re: [Elecraft] Elecraft K3 Frequency Memory Editor

2010-04-18 Thread Thomas Norff

No...
just install the new one...

73 de Thomas , DM7TN

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Sam Morgan
Sent: Sunday, April 18, 2010 8:42 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Elecraft K3 Frequency Memory Editor

With each new release
are we suppose to
first remove the old one (using control panel) and then install the new
version?
--
GB  73
K5OAI
Sam Morgan
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[Elecraft] My goodness!

2010-04-18 Thread Joe Planisky

Elecraft announces a 500W amplifier and there's a sudden outbreak of  
uncivility on the reflector.

I guess it's true what they say: Power corrupts

--
Joe KB8AP
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[Elecraft] In Reference to: k2 pll and ref osc issues n0xdb

2010-04-18 Thread Roger Dallimore

My feelings entirely Todd,  a great loss.

73
Roger  MW0IDX
 To my friends on the Elecraft reflector:

 I usually sit quietly monitoring the Elecraft reflector traffic, ignoring 
 most of it, but ALWAYS reading any post by W3FPR.  Don's posts have been 
 very helpful to me over the past 11 years  and I know many others and I 
 would not have solved some difficult technical problems without his gracious 
 help. It is very sad to me that this has happened no matter who is right or 
 wrong.  I would kindly ask that list members carefully consider what they 
 type or saymaybe give it an hours time before hitting the send key. If 
 Don leaves the reflector it is a huge loss to all of us whether members 
 realize it or not.

 Thanks for your time, and especially, Thanks to Don.

 73,
 Todd, WA7U



 --
 From: Sam Morgan k5oai@gmail.com
 Sent: Sunday, April 18, 2010 10:40 AM
 To: d...@w3fpr.com
 Cc: elecraft@mailman.qth.net; lstavenhagen lstavenha...@hotmail.com
 Subject: Re: [Elecraft] k2 pll and ref osc issues  n0xdb

   
 Don Wilhelm wrote:
 
 No personal information was posted, it was only publically available
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information

 However, it won't happen again.  If anyone wants my assistance, it will
 have to be by direct email.
 d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more
 public posts after this one.
 This is going to save me a LOT of time!

   
 I'd like to give a big shout out thanks
 to all the reflector nannys,
 for depriving myself and others on the list,
 from future opportunities to learn from Don's wealth of knowledge,
 way to go folks, you knew what was going to happen,
 before you mounted your soapboxes to beat your chests!

 yea I shouldn't have said the above,
 but it needed saying!

 /me slithers back into my rf proofed black hole
 -- 
 GB  73
 K5OAI
 Sam Morgan
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Re: [Elecraft] K3 Voice announcement

2010-04-18 Thread Jim Miller KG0KP

Gary,

I have not used it and do not know how capable it is but on the

www.elecraft.com page,
On the left bar, click on Firmware + SW
then on K3  K2 Control and Logging Software
then scroll down near the bottom to K3 Voice
followed by K2 Voice
and then by the explanation
and installers to include K3 Voice Installer.

Let us know how if and well this works, it sounds like most are unaware of 
it.

73, de Jim KG0KP

- Original Message - 
From: Gary Gregory garyvk...@gmail.com
To: elecraft@mailman.qth.net
Sent: Saturday, April 17, 2010 4:14 PM
Subject: [Elecraft] K3 Voice announcement


 Hi,

 A friend of mine who will become totally blind unfortunately, would like 
 to
 know if Elecraft intend to offer this feature in the future.

 I do recall there was some discussion about this some time ago and I can't
 recall what the outcome was.

 He has his eyesight at the moment, although it is not real good but is 
 still
 going to order a K3 anyway.



 -- 
 Gary
 VK4FD - Motorhome Mobile
 http://www.qsl.net/vk4fd/
 K3 #679
 For everything else there's Mastercard!!!
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Re: [Elecraft] CONFIG: WMTR Settings

Hello all,
 I have calibrated the WMTR LP and WMTR HP settings over and over again until 
 I am ready to pull (what remains of) my hair out.  This can be a frustrating 
 exercise in futility if you let it get the best of you.  First, it is 
 necessary to let the K3 warm up for an hour to two before starting the 5 watt 
 and 50 watt calibrations on 20 meters.  These settings are heat sensitive.  
 One of my K3s has a LP of 045 and HP of 035.  My other K3 has a LP of 089 and 
 HP of 090.  There is no standard reading for these menu parameters.  Once 
 these menu parameters are set for a 5 and 50 watt reading on a accurate 
 external wattmeter, they will probably not read exactly 5 and 50 watts the 
 next time you check at a later time.  When the K3 POWER is set to 100 watts, 
 the actual output will be somewhere between 93 and 97 watts on the external 
 wattmeter.  This is normal unless the menu parameters are fudged.  I also 
 find it necessary to do the WMTR LP and HP calibration BEFORE doing the TX 
 GAIN CALI
 BR
   
I checked my K3 with values above and no change, no power at all. Lets
wait for Elecraft support, most probably they know how can handle my
problem.
  ATION.   Roy Morris  W4WFB
   
Best 73.

CT1DRB
David Quental

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Re: [Elecraft] News from Visalia! (:-))

2010-04-18 Thread Terry Posey

lu w4lt wrote:

I can get an ACOM 1010 (admittedly, with a tube) around (below) that that
price with the handy TRI tuning and 800w to do the same thing, with
paperclip reliability to boot.  

Also, an ALS600 with the Linear Power supply, AD5X Full Break In mod and an
external bandswitching accessory plus an MFJ998 would come in considerably
under the $2,000 price.  I should know. I own this configuration and it
works wonderfully at a total cost of just under $1,800 :)

Matching boxes are nice, but they are not worth that kind of money for that
power level.  500 watts in kit form with a under $1,100 price point makes
much more sense in today's economic environment, with the added advantage of
me being able to build and service it (although the Ameritron is very simple
inside, easy to service and I don't have to build it, for two hundred
dollars more!).

Sorry, but the Kool Aid seems to be starting to taste a little bitter.

-lu-w4lt- 



lu, I understand how you conclude your personal equipment druthers - and
there can be no criticisms for those choices. 

Let me suggest; however, that there is an iron triangle that most people
consider as trade-offs for purchases, either consciously or subconsciously :
1) Performance, 2) Style, and 3) Cost.  In general we all seek to maximize
performance in whatever we wish to acquire or purchase, whether it be power
level, duty cycle, weight, distortion, and HF and 6-meter band coverage. I
will argue that Style is also an issue for everyone on some level - do we
really need to have any of our cabinets painted? What about knobs?  Must
they be black? Knurled? Plastic? Metal?  Ultimately, Performance and Style
are phase-locked to COST.  The more you demand of Performance and Style, the
higher the Cost must be.  Considerations of 1) Performance, 2) Style, and 3)
Cost, send our personal choices in the directions that suit us as we
individuals deem best.  Those choices have nothing to do with the taste of
anyone's Kool Aid.

I have already acquired a high duty cycle, low distortion, 1.5KW amplifier
years ago. Now I would like a small, light, and portable HF+6-meter
amplifier for DXpedition duty.  I personally will not consider ANY amplifier
that cannot Perform on 6-meters in a small stylish, compact, light, and low
distortion package.  Your mileage does vary.

73,
Terry K4RX




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Re: [Elecraft] In Reference to: k2 pll and ref osc issues n0xdb

I certainly agree with everything that has been said in Don's favor and 
defense, and it would be a tragic loss if he were to leave the reflector 
permanently. Personally, I suspect he will probably reconsider and come back 
at some point in the not-too-distant future, and I hope that he does.

IMO, Don did nothing wrong or deserving of censure. Opinions have been 
expressed, some perhaps in a less-than-artful manner, but it's over -- and 
hopefully once everybody calms down, Don will be back with us. Hopefully.

Bill W5WVO

--
From: Roger Dallimore mw0...@btinternet.com
Sent: Sunday, April 18, 2010 2:00 PM
To: T Gahagan tgaha...@imt.net
Cc: Elecraft List elecraft@mailman.qth.net
Subject: [Elecraft]  In Reference to:  k2 pll and ref osc issues  n0xdb

 My feelings entirely Todd,  a great loss.

 73
 Roger  MW0IDX
 To my friends on the Elecraft reflector:

 I usually sit quietly monitoring the Elecraft reflector traffic, ignoring
 most of it, but ALWAYS reading any post by W3FPR.  Don's posts have been
 very helpful to me over the past 11 years  and I know many others and I
 would not have solved some difficult technical problems without his 
 gracious
 help. It is very sad to me that this has happened no matter who is right 
 or
 wrong.  I would kindly ask that list members carefully consider what they
 type or saymaybe give it an hours time before hitting the send key. 
 If
 Don leaves the reflector it is a huge loss to all of us whether members
 realize it or not.

 Thanks for your time, and especially, Thanks to Don.

 73,
 Todd, WA7U



 --
 From: Sam Morgan k5oai@gmail.com
 Sent: Sunday, April 18, 2010 10:40 AM
 To: d...@w3fpr.com
 Cc: elecraft@mailman.qth.net; lstavenhagen lstavenha...@hotmail.com
 Subject: Re: [Elecraft] k2 pll and ref osc issues  n0xdb


 Don Wilhelm wrote:

 No personal information was posted, it was only publically available
 information easily obtained from QRZ.com, and also in the FCC database.
 I don't see that a name and call are personal information

 However, it won't happen again.  If anyone wants my assistance, it will
 have to be by direct email.
 d...@w3fpr.com or w3...@embarqmail.com will direct email to me - no more
 public posts after this one.
 This is going to save me a LOT of time!


 I'd like to give a big shout out thanks
 to all the reflector nannys,
 for depriving myself and others on the list,
 from future opportunities to learn from Don's wealth of knowledge,
 way to go folks, you knew what was going to happen,
 before you mounted your soapboxes to beat your chests!

 yea I shouldn't have said the above,
 but it needed saying!

 /me slithers back into my rf proofed black hole
 -- 
 GB  73
 K5OAI
 Sam Morgan
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[Elecraft] K3 Voice Announcements

2010-04-18 Thread David Guernsey

Thanks for the info Jim.  Although not blind, I am somewhat sight impaired.  
Only thing with the software on the Elecraft site is that it is for PC, and I 
use a Mac Mini.  Anybody know a way to get the same thing on my Mac?

 73s de Dave Guernsey KJ6CBS



  
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Re: [Elecraft] News from Visalia! (:-))

2010-04-18 Thread Grant Youngman

We don't know the price, we don't know the specs.  All anyone has seen is a box 
with a few hints based on the buttons, and exhaustive posts on silicon devices. 
  Why not let it roll out in its own time -- before (1) the list has completely 
redesigned it, or (2) decided it isn't worth it, or (3) put it in the same 
category as some Dave-Made piece of garbage -- which, based on a few  
comments, would appear to be a staple in some parts of the ham(?) community.  
I'm not sure which part???  :-)

Oh, well -- at least it has given us something else to opine about, and 
gratefully reduced the number of posts continuing to bloviate on the benefits 
of the P3 vs. whatever.

Grant/NQ5T



 
 Sorry, but the Kool Aid seems to be starting to taste a little bitter.

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Re: [Elecraft] RTTY using DATA mode on K3

2010-04-18 Thread Gary Hinson

Something that caught me out once or twice is that the PC's audio output should 
be close to the K3's
tone settings on RTTy (can't remember if this is DATA or AFSK modes - possibly 
both).  With MMTTY,
it's possible to net the TX tones to the RX tones anywhere on the watefall, but 
if the TX tones are
way off the rig's expected tone frequencies, they are filtered away.  [This is 
even without any TX
equalization.] 

73
Gary  ZL2iFB


 -Original Message-
 From: elecraft-boun...@mailman.qth.net 
 [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill 
 VanAlstyne W5WVO
 Sent: Monday, 19 April 2010 6:28 AM
 To: Derek Cohn/WB0TUA; elecraft@mailman.qth.net
 Subject: Re: [Elecraft] RTTY using DATA mode on K3
 
 Hi Derek,
 
 When using a computer and sound card to drive the K3 in any 
 digital mode, 
 your data mode should be set to DATA A. Somebody will correct 
 me if I'm 
 wrong, but I suspect that's your problem.
 
 DATA A mode is basically equivalent to the USB/LSB position, 
 except that 
 equalization and compression are disabled.
 
 Bill W5VWO
 
 
 --
 From: Derek Cohn/WB0TUA vibrop...@mindspring.com
 Sent: Sunday, April 18, 2010 9:53 AM
 To: elecraft@mailman.qth.net
 Subject: [Elecraft] RTTY using DATA mode on K3
 
  Hi Everyone,
 
  I just bought a K3 a few weeks ago and have been using it 
 on CW.  It's 
  time to play with it a bit on RTTY.  I'm using the 
 Tigetronics Signalink 
  to interface the radio to my PC which is running MMTTY.  
 When I have the 
  mode switch in the sideband position, copy on the laptop is 
 just fine and 
  the signals display properly on the tuning aids in MMTTY.  
 I read the 
  manual pages about better performance if the DATA mode is 
 selected.  I 
  switched to the DATA mode and there is very little audio in 
 the speaker 
  and no signals displayed on the tuning aids in MMTTY.  No 
 copy either.  I 
  double-checked the data mode setting and it is AFSK-A which 
 I think is 
  correct.  I must have a setting wrong somewhere.  I've gone 
 over the data 
  section in the manual a few more times but don't see what 
 I'm doing wrong. 
  Any ideas?
 
  Thanks and 73,
 
  Derek Cohn
  Morse Telegraph Club - Alton Chapter
  Office UD, Sine DJ
  Amateur Radio Station - WBØTUA
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Re: [Elecraft] KPA500

2010-04-18 Thread Bob McGraw - K4TAX

Any switching supply today and one that's  worth it's salt should operate 
satisfactorily from 100 VAC to 250 VAC.   So 120 VAC or 230VAC should not be 
of conern.

73
Bob, K4TAX


- Original Message - 
From: Don Wilhelm w3...@embarqmail.com
To: David Ferrington, M0XDF m0...@alphadene.co.uk
Cc: elecraft@mailman.qth.net
Sent: Friday, April 16, 2010 3:40 PM
Subject: Re: [Elecraft] KPA500


 David,

 Because not all have hamshacks that are wired for 220 volts.  If the
 space was not wired specifically for hamshack use, there is likely to be
 only 120 volt receptacles available.   Up to 1000 watts draw (500 watts
 with 50% efficiency) on a normal 120 volt 15 amp circuit is practical,
 but attempting to run more than becomes marginal.

 73,
 Don W3FPR

 David Ferrington, M0XDF wrote:
 I'm intrigued, obviously we'd look for 220v over here, but why not 120v 
 in US?
 73 de M0XDF, K3 #174


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Re: [Elecraft] News from Visalia!

2010-04-18 Thread Guy Olinger K2AV

On an empathetic note...  Can Elecraft come up a price-appropriate
tuner design that will survive hams at 500 watt RTTY?

In the midst of trying to concoct a remote home brew tuner to put
160-30 meters on a 135 foot end-fed wire, the calculator and equations
starting telling me that voltages and currents that would have to be
switched under power could run over 10 kV or 20 amps, depending on
frequency, at 1.5 kW.

IF there were a bullet-proof, ham-proof way of insuring that contacts
were NEVER, EVER switched under power, some things could be done.  But
I can't figure out how to keep ME from doing that when I'm really
stupid at the end of a contest.

There is a point at which bulletproof tuner designs seem to warp into
an entire new expensive component universe.  Depending on the engineer
and personal or commercial risk tolerance, and whether that might be
RTTY or not, that power level is 200-400 watts.  After that you are
talking Collins Radio kind of commercial/military grade designs with
motors, vacuum relays and capacitors. Less than that and one is frying
stuff that is perfectly satisfactory at 200-400 watts.

The commercial risk is obvious.  Burned contacts will always be blamed
on the manufacturer. If he can't design something that can't burn, for
a price a customer is willing to pay, what's the point.

Go out and price a pair of motor driven vacuum variable capacitors big
enough to cover the variation on 160m and with the voltage rating to
stand up to tuning antennas at voltage nodes.  Gak.

Sigh.

Kind of like the sound barrier, not impossible but definitely a new
mode beyond it.

The one possible work-around is an Elecraft tuner that will not work
unless hooked up to an Elecraft amp and a Kx via proprietary protocol
so it knows whether it is QRO or not and can seamlessly drop out of
QRO for tuning. Something like how the K2 and the KPA100 work.

73, Guy.

On Sun, Apr 18, 2010 at 11:06 AM, John Fritze fritzej...@gmail.com wrote:
 I agree, yes please, a remote-able, weatherproofed 500W tuner (capable
 of 160-6m) would create an instant order here too.  I have relied on
 SGC tuners for many years, mobile, marine mobile and now at my small
 suburban plot where I have a custom DX engineering 50+ foot vertical
 with 40 radials.  The beauty of SGC tuners is they only require a 12v
 source.  In every situation these tuners have performed flawlessly in
 harsh environments for years.  I was planning on getting a 500W Tokyo
 Hi Power amp at Dayton this year, but seeing the Elecraft amp, I will
 wait.  The problem is that no one makes a 160-6M remote weather proof
 tuner capable of 500-600 watts which only needs 12v.  SGC's 500 watt
 tuner doesn't do 160M according to their specs.  What's a space poor
 ham to do?
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Re: [Elecraft] KPA500 active devices!!

2010-04-18 Thread Guy Olinger K2AV

Device web site was claiming any angle in the device specs.
(!!!???)  This should be fun to watch.

73, Guy.

On Sun, Apr 18, 2010 at 9:54 AM, Matt Palmer kd8...@gmail.com wrote:
 Well said tom, an often overlooked aspect is the angle of the
 mismatch, load pull is the only way to tell, while a 3:1 resitive is
 not to harsh, very few things will survive a 3:1 at an inductive
 reactance angle. Load pull is the only way to be sure, and I would be
 uncomfortable making any claims until such a test has been done.


 Matt
 W8ESE
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Re: [Elecraft] P3

2010-04-18 Thread Bob McGraw - K4TAX

I AGREE!

If I can't have a radio that does not rely on some external computer of 
various questionable hardware integrity, some other company's flaky 
operating system and all put together by a 3rd party vendor..I 
won't buy that radio.

A fully stand-a-lone radio is highly preferred.  All I want is to connect 
power, antenna, mike, key and I'm on the air.

73
Bob, K4TAX


- Original Message - 
From: lstavenhagen lstavenha...@hotmail.com
To: elecraft@mailman.qth.net
Sent: Saturday, April 17, 2010 2:38 PM
Subject: Re: [Elecraft] P3



 My point is, even with just the laptop + computer, you, for better or 
 worse,
 already have 4 3rd parties involved before you ever get to use your rig:
 - the laptop manufacturer
 - the SDR/Interface software manufacturers
 - the OS vendor
 - elecraft

 If any of these have a problem working with each other, you've got a fair
 bit of work ahead of you. If it works, great, but if not

 If say the P3 + K3 were to work adequately for some application, say just
 using casual PSK and that's ok for what you want to do, that list of 3rd
 party vendors reduces down to one: Elecraft. Your chances of success at
 getting that working and well-supported are pretty good and could be a
 significant advantage.

 But Chen's point is good too and I don't want to diminish your point 
 either.
 For example, I have cocoamodem running on my macbook right now scanning 
 PSK
 signals from my K3 and it's just a joy to use. It is able to decode sigs I
 can hardly even hear out of the audio, QSYs to different stations is done
 with just a mouse click, it's even got integration into RUMLog, etc. and 
 yes
 all with only 2 audio cords and a USB-RS232 adaptor (course the computer
 being a mac helps a lot hi hi)..

 So yes, capabilities like that available from general purpose computing 
 are
 going to be a VERY tough act to follow and elecraft has its work cut out 
 for
 them to compete on that level.  All I'm saying is a special-purpose 
 solution
 can offer (if nothing else) the single-vendor advantage and that can be
 significant depending on the application. It should be counted out is what 
 I
 mean..

 73,
 LS
 W5QD
 -- 
 View this message in context: 
 http://n2.nabble.com/P3-tp4914382p4918618.html
 Sent from the [K3] mailing list archive at Nabble.com.
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Re: [Elecraft] News from Visalia! (:-))

   From: Terry Posey tpo...@nettally.com
   Date: Sun, 18 Apr 2010 16:16:58 -0400
   I have already acquired a high duty cycle, low distortion, 1.5KW amplifier
   years ago. Now I would like a small, light, and portable HF+6-meter
   amplifier for DXpedition duty.  I personally will not consider ANY amplifier
   that cannot Perform on 6-meters in a small stylish, compact, light, and low
   distortion package.  Your mileage does vary.

Interestingly M-Squared was showing a VERY small high-power 6M amp.  I
didn't pay a lot of attention and can't locate the sheet I picked up
about it, but 6M folks might want to check it out.

Given the size and direction of the KPA-500, I think it'll be in demand.
500W on RTTY with DXpedition/contesting duty cycles make me happy.

My IC-2KL with a commercial switching supply weighs 25 pounds (I'm
home now), and I thought that was pretty good.  It's also larger (both
pieces together).

73, doug
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Re: [Elecraft] News from Visalia!

2010-04-18 Thread Wes Stewart

Sounds trivial to me.  You must have *some* switch closure or logic signal that 
activates the PA.  Lock out all tuner adjustments when the PA is on.

--- On Sun, 4/18/10, Guy Olinger K2AV olin...@bellsouth.net wrote:

 From: Guy Olinger K2AV olin...@bellsouth.net
 Subject: Re: [Elecraft] News from Visalia!
 To: John Fritze fritzej...@gmail.com
 Cc: elecraft@mailman.qth.net
 Date: Sunday, April 18, 2010, 3:22 PM
 On an empathetic note...  Can
 Elecraft come up a price-appropriate
 tuner design that will survive hams at 500 watt RTTY?

 In the midst of trying to concoct a remote home brew tuner
 to put
 160-30 meters on a 135 foot end-fed wire, the calculator
 and equations
 starting telling me that voltages and currents that would
 have to be
 switched under power could run over 10 kV or 20 amps,
 depending on
 frequency, at 1.5 kW.

 IF there were a bullet-proof, ham-proof way of insuring
 that contacts
 were NEVER, EVER switched under power, some things could be
 done.  But
 I can't figure out how to keep ME from doing that when I'm
 really
 stupid at the end of a contest.

 There is a point at which bulletproof tuner designs seem to
 warp into
 an entire new expensive component universe.  Depending
 on the engineer
 and personal or commercial risk tolerance, and whether that
 might be
 RTTY or not, that power level is 200-400 watts.  After
 that you are
 talking Collins Radio kind of commercial/military grade
 designs with
 motors, vacuum relays and capacitors. Less than that and
 one is frying
 stuff that is perfectly satisfactory at 200-400 watts.

 The commercial risk is obvious.  Burned contacts will
 always be blamed
 on the manufacturer. If he can't design something that
 can't burn, for
 a price a customer is willing to pay, what's the point.

 Go out and price a pair of motor driven vacuum variable
 capacitors big
 enough to cover the variation on 160m and with the voltage
 rating to
 stand up to tuning antennas at voltage nodes.  Gak.

 Sigh.

 Kind of like the sound barrier, not impossible but
 definitely a new
 mode beyond it.

 The one possible work-around is an Elecraft tuner that will
 not work
 unless hooked up to an Elecraft amp and a Kx via
 proprietary protocol
 so it knows whether it is QRO or not and can seamlessly
 drop out of
 QRO for tuning. Something like how the K2 and the KPA100
 work.

 73, Guy.

 On Sun, Apr 18, 2010 at 11:06 AM, John Fritze fritzej...@gmail.com
 wrote:
  I agree, yes please, a remote-able, weatherproofed
 500W tuner (capable
  of 160-6m) would create an instant order here too.  I
 have relied on
  SGC tuners for many years, mobile, marine mobile and
 now at my small
  suburban plot where I have a custom DX engineering 50+
 foot vertical
  with 40 radials.  The beauty of SGC tuners is they
 only require a 12v
  source.  In every situation these tuners have
 performed flawlessly in
  harsh environments for years.  I was planning on
 getting a 500W Tokyo
  Hi Power amp at Dayton this year, but seeing the
 Elecraft amp, I will
  wait.  The problem is that no one makes a 160-6M
 remote weather proof
  tuner capable of 500-600 watts which only needs 12v.
  SGC's 500 watt
  tuner doesn't do 160M according to their specs.
  What's a space poor
  ham to do?

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Re: [Elecraft] KPA500

It's not a switcher.  As is common for linear power supplies (and not
uncommon for switchers), there's an input voltage selector as part of
the input power connector/fuse/switch combo.

Since the power transformer is 15 of the 22 pounds weight, one of my
thoughts was to ship that part (or an extra) ahead when traveling, and
when I asked was told that currently it takes about 15 minutes to
install, but that time might be cut.  

73, doug

   From: Bob McGraw - K4TAX rmcg...@blomand.net
   Date: Sun, 18 Apr 2010 16:24:43 -0500

   Any switching supply today and one that's  worth it's salt should operate 
   satisfactorily from 100 VAC to 250 VAC.   So 120 VAC or 230VAC should not be 
   of conern.

   73
   Bob, K4TAX


   - Original Message - 
   From: Don Wilhelm w3...@embarqmail.com
   To: David Ferrington, M0XDF m0...@alphadene.co.uk
   Cc: elecraft@mailman.qth.net
   Sent: Friday, April 16, 2010 3:40 PM
   Subject: Re: [Elecraft] KPA500

David,
   
Because not all have hamshacks that are wired for 220 volts.  If the
space was not wired specifically for hamshack use, there is likely to be
only 120 volt receptacles available.   Up to 1000 watts draw (500 watts
with 50% efficiency) on a normal 120 volt 15 amp circuit is practical,
but attempting to run more than becomes marginal.
   
73,
Don W3FPR
   
David Ferrington, M0XDF wrote:
I'm intrigued, obviously we'd look for 220v over here, but why not 120v 
in US?
73 de M0XDF, K3 #174
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Re: [Elecraft] KPA500

2010-04-18 Thread Bob McGraw - K4TAX

I'll pass on linear supplies.  Too heavy, too inefficient.

73
Bob, K4TAX

- Original Message - 
From: Doug Faunt N6TQS +1-510-655-8604 fa...@panix.com
To: rmcg...@blomand.net
Cc: d...@w3fpr.com; m0...@alphadene.co.uk; elecraft@mailman.qth.net
Sent: Sunday, April 18, 2010 4:56 PM
Subject: Re: [Elecraft] KPA500

 It's not a switcher.  As is common for linear power supplies (and not
 uncommon for switchers), there's an input voltage selector as part of
 the input power connector/fuse/switch combo.

 Since the power transformer is 15 of the 22 pounds weight, one of my
 thoughts was to ship that part (or an extra) ahead when traveling, and
 when I asked was told that currently it takes about 15 minutes to
 install, but that time might be cut.

 73, doug

   From: Bob McGraw - K4TAX rmcg...@blomand.net
   Date: Sun, 18 Apr 2010 16:24:43 -0500

   Any switching supply today and one that's  worth it's salt should 
 operate
   satisfactorily from 100 VAC to 250 VAC.   So 120 VAC or 230VAC should 
 not be
   of conern.

   73
   Bob, K4TAX

   - Original Message - 
   From: Don Wilhelm w3...@embarqmail.com
   To: David Ferrington, M0XDF m0...@alphadene.co.uk
   Cc: elecraft@mailman.qth.net
   Sent: Friday, April 16, 2010 3:40 PM
   Subject: Re: [Elecraft] KPA500

David,

Because not all have hamshacks that are wired for 220 volts.  If the
space was not wired specifically for hamshack use, there is likely to 
 be
only 120 volt receptacles available.   Up to 1000 watts draw (500 
 watts
with 50% efficiency) on a normal 120 volt 15 amp circuit is practical,
but attempting to run more than becomes marginal.

73,
Don W3FPR

David Ferrington, M0XDF wrote:
I'm intrigued, obviously we'd look for 220v over here, but why not 
 120v
in US?
73 de M0XDF, K3 #174

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Re: [Elecraft] News from Visalia!

   Date: Sun, 18 Apr 2010 17:22:02 -0400
   From: Guy Olinger K2AV olin...@bellsouth.net
much deleted

   The one possible work-around is an Elecraft tuner that will not work
   unless hooked up to an Elecraft amp and a Kx via proprietary protocol
   so it knows whether it is QRO or not and can seamlessly drop out of
   QRO for tuning. Something like how the K2 and the KPA100 work.

That's what the TBD ACC2 connector could do, provide handshaking for
an external ATU so that it would be operated in low-stress
configurations.   That ATU doesn't have to come from Elecraft, though.
LDG has certainly made automatic tuners that work with Icom's
(more or less undocumented) tuner protocol, even making model numbers
sorta match i.e. AT-7000.

73, doug

back home again, CA 198 to CA 25 to slab.
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Re: [Elecraft] P3


Case in point: my $2700 macbook pro went Tango Uniform yesterday evening just
as I was about to hook it up to my K3. Fortunately, it's still under
warranty but will be off getting fixed for at least 2 weeks.

Sure that could happen to the rig too, but it'd be even worse if I had this
perfectly working radio sitting here that I couldn't use because the
computer decided to behead itself on nice evening hi hi.

Just one checkmark in the no-computer column hi hi...

73
LS
W5QD
-- 
View this message in context: http://n2.nabble.com/P3-tp4914382p4922433.html
Sent from the [K3] mailing list archive at Nabble.com.
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Re: [Elecraft] KPA500

See my earlier note as to one reason it was chosen.  Elecraft learned from
the K2 about being a good player in a multi-TX environment (which can
just be neighbors).
Also, the 60V supply is providing no current when key up, and needs to
go to full output on key down- apparently this is less of a problem
with a linear supply than with a switcher.  And of particular
significance to CW ops.

BTW, much of what I'm writing is my repeating what I was told or heard,
and none of it is binding on Elecraft, and is subject to my
misinterpretation, as well as changes down the line.  The amp is still
in prototype, and has lots of testing to endure before it's solid.

I trusted them two years ago (i have K3 #22) and I trust them now.

73, doug

   From: Bob McGraw - K4TAX rmcg...@blomand.net
   Date: Sun, 18 Apr 2010 17:02:04 -0500

   I'll pass on linear supplies.  Too heavy, too inefficient.

   73
   Bob, K4TAX



   - Original Message - 
   From: Doug Faunt N6TQS +1-510-655-8604 fa...@panix.com
   To: rmcg...@blomand.net
   Cc: d...@w3fpr.com; m0...@alphadene.co.uk; elecraft@mailman.qth.net
   Sent: Sunday, April 18, 2010 4:56 PM
   Subject: Re: [Elecraft] KPA500


It's not a switcher.  As is common for linear power supplies (and not
uncommon for switchers), there's an input voltage selector as part of
the input power connector/fuse/switch combo.
   
Since the power transformer is 15 of the 22 pounds weight, one of my
thoughts was to ship that part (or an extra) ahead when traveling, and
when I asked was told that currently it takes about 15 minutes to
install, but that time might be cut.
   
73, doug
   
  From: Bob McGraw - K4TAX rmcg...@blomand.net
  Date: Sun, 18 Apr 2010 16:24:43 -0500
   
  Any switching supply today and one that's  worth it's salt should 
operate
  satisfactorily from 100 VAC to 250 VAC.   So 120 VAC or 230VAC should 
not be
  of conern.
   
  73
  Bob, K4TAX
   
   
  - Original Message - 
  From: Don Wilhelm w3...@embarqmail.com
  To: David Ferrington, M0XDF m0...@alphadene.co.uk
  Cc: elecraft@mailman.qth.net
  Sent: Friday, April 16, 2010 3:40 PM
  Subject: Re: [Elecraft] KPA500
   
   David,
  
   Because not all have hamshacks that are wired for 220 volts.  If the
   space was not wired specifically for hamshack use, there is likely to 
be
   only 120 volt receptacles available.   Up to 1000 watts draw (500 
watts
   with 50% efficiency) on a normal 120 volt 15 amp circuit is practical,
   but attempting to run more than becomes marginal.
  
   73,
   Don W3FPR
  
   David Ferrington, M0XDF wrote:
   I'm intrigued, obviously we'd look for 220v over here, but why not 
120v
   in US?
   73 de M0XDF, K3 #174



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Re: [Elecraft] KPA500 active devices!!

2010-04-18 Thread Tom W8JI

It's pretty basic stuff Guy.

Look at what happens in this MRF150:

http://www.w8ji.com/demonstation.htm

It would be nice if there was a free lunch and we could 
magically buy a device that didn't care about the load and 
gave reasonable operating efficiency and good IMD with any 
impedance from perfect to a 3:1 mismatch, but it isn't 
possible. Not blowing up in a few seconds on a data sheet 
test circuit is a whole lot different than being acceptable 
to operate that way in the real world.

73 Tom



Device web site was claiming any angle in the device 
specs.
(!!!???)  This should be fun to watch.

73, Guy.

On Sun, Apr 18, 2010 at 9:54 AM, Matt Palmer 
kd8...@gmail.com wrote:
 Well said tom, an often overlooked aspect is the angle of 
 the
 mismatch, load pull is the only way to tell, while a 3:1 
 resitive is
 not to harsh, very few things will survive a 3:1 at an 
 inductive
 reactance angle. Load pull is the only way to be sure, and 
 I would be
 uncomfortable making any claims until such a test has been 
 done.


 Matt
 W8ESE
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[Elecraft] Don

2010-04-18 Thread H. Cary

Allow me to weigh in on the personal information issue.  W3FPR did not
post ANY private information, only the name and call sign of another ham -
if it's readily available on the internet, as it is on QRZ.com, it is not
PRIVATE - anyone with a computer can get it for goodness sakes!
I can only speak for myself but I subscribe to the reflector so I can read
W3FPR's postings!  He has helped me on several occasions and I ALWAYS learn
something from his e-mail answers.  This reflector will be a much less
interesting place without him and I hope he will reconsider only taking
questions at his home e-mail addresses.  Perhaps, Wayne and Eric can
convince him to stay - I sure hope so.
Don,  Nolite te bastardes carborundorum!
73,
H. Cary, K4TM
Lynchburg VA
K2-100 #4991
K3-100 #3448 [ex-K3-100 #0178]


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Re: [Elecraft] Don

2010-04-18 Thread Bill K9YEQ

I wouldn't think Don takes much personal.  He is very technical and avoids
personal interaction from what I have experienced.  He is just super when it
comes to knowledge.  I read everything he posts, unlike many others.  I put
him on plane with the Elecraft staff.  Who would know the difference?  He is
a gold mine of knowledge and have been involved with him for 10 years or so?
He is not one who divulges personal information and anyone on the internet
knows that what they send is open to the public, if not, what rock have they
been living under.  

Bill
K9YEQ
K2 and KX1 field tester, K3 and modules. P3 on the way!!


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of H. Cary
Sent: Sunday, April 18, 2010 5:24 PM
To: elecraft@mailman.qth.net
Cc: d...@w3fpr.com
Subject: [Elecraft] Don
Importance: High

Allow me to weigh in on the personal information issue.  W3FPR did not
post ANY private information, only the name and call sign of another ham -
if it's readily available on the internet, as it is on QRZ.com, it is not
PRIVATE - anyone with a computer can get it for goodness sakes!
I can only speak for myself but I subscribe to the reflector so I can read
W3FPR's postings!  He has helped me on several occasions and I ALWAYS learn
something from his e-mail answers.  This reflector will be a much less
interesting place without him and I hope he will reconsider only taking
questions at his home e-mail addresses.  Perhaps, Wayne and Eric can
convince him to stay - I sure hope so.
Don,  Nolite te bastardes carborundorum!
73,
H. Cary, K4TM
Lynchburg VA
K2-100 #4991
K3-100 #3448 [ex-K3-100 #0178]


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Re: [Elecraft] News from Visalia!

2010-04-18 Thread Phil Debbie Salas

Sounds trivial to me.  You must have *some* switch closure or logic signal 
that activates the PA.  Lock out all tuner adjustments when the PA is on.

Or conversely, disable the amp before tuning starts.  That's the way my 
MFJ-998 autotuner works.  The amp-enable signal goes thru the MFJ-998.  So 
when the tuner wants to tuen, the first thing it does is interrupt the 
amp-key line.

Phil - AD5X 

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Re: [Elecraft] Don

2010-04-18 Thread The Smiths


Yes, the call and name information is public indeed.. ONLY when the person 
posting cares to share it.  That is ALL that I said.  If said person chooses 
NOT to give that information out on a public reflector, it is not up to Don, or 
anyone else to share it with the group.  That is in poor taste.

Don is very helpful.  I know this personally, as I have had him answer some of 
my own questions as well.  Yes, he answers pretty much EVERY email, and yes he 
has an opinion on about EVERY topic, but I can sift through those emails for 
when I'm after the important stuff.  I see no need for him to take his 
technical skills off of this reflector for any reason, none that I've given 
anyhow.  There's no reason for Wayne, Eric, nor Lyle to be bothered with this 
matter what so ever.

 


 
 From: h3c...@gmail.com
 To: elecraft@mailman.qth.net
 Date: Sun, 18 Apr 2010 18:23:38 -0400
 CC: d...@w3fpr.com
 Subject: [Elecraft] Don
 
 Allow me to weigh in on the personal information issue. W3FPR did not
 post ANY private information, only the name and call sign of another ham -
 if it's readily available on the internet, as it is on QRZ.com, it is not
 PRIVATE - anyone with a computer can get it for goodness sakes!
 I can only speak for myself but I subscribe to the reflector so I can read
 W3FPR's postings! He has helped me on several occasions and I ALWAYS learn
 something from his e-mail answers. This reflector will be a much less
 interesting place without him and I hope he will reconsider only taking
 questions at his home e-mail addresses. Perhaps, Wayne and Eric can
 convince him to stay - I sure hope so.
 Don, Nolite te bastardes carborundorum!
 73,
 H. Cary, K4TM
 Lynchburg VA
 K2-100 #4991
 K3-100 #3448 [ex-K3-100 #0178]
 
 
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Re: [Elecraft] K2 filter alignment


On Apr 17, 2010, at 4:57 PM, Ed Finn wrote:

 The computer I used for this is long dead, and I get a bad link to
 spectrogram when I follow the Elecraft link.

 Does anyone know where a good copy is?

Tom, N0SS, has the last freeware copy on his site: http://www.n0ss.net


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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Re: [Elecraft] Elecraft Amps


On Feb 23, 2010, at 1:47 AM, -.-. --.-N3TU -.-. --.- wrote:

 In the area where I live, we all have a very high noise level. There is a
 lot of industry around us. There are times I have to tell the station to
 increase power so I can understand them. All kind of crazy stuff going on
 here. I get a lot of neighborhood noise from the street lamps and
 transformers. I also hear a lot of noise from all the industries around
 here. 

If you can find a place to hide it, consider receiving antennas such as a K9AY, 
flag or pennant. They are directional receiving antennas that will reduce the 
percentage of noise and make things more readable.

I have a half-sized K9AY under a small tree, and it works pretty well on 80m 
and 40m.

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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Re: [Elecraft] Grounding negative side of power supply?


On Jan 20, 2010, at 11:47 PM, Richard S. Lindzen wrote:

 Dear Don,
 
 This leaves me a bit concerned.  I am planning to put up a K9AY 
 receiving antenna in my backyard and it is supposed to be connected 
 to a ground rod.  I had never seen it suggested that this must be 
 connected to the utility ground stake.  I'm not even sure where the 
 utility ground stake is.  I've never noticed one though I will ask my 
 electrician.  If there is one, it is likely to be pretty far from the K9AY.

For the K9AY, your best bet is to make sure the antenna ground and the coax 
ground are completely isolated. I do this by magnetically coupling the coax 
with a 9:1 transformer. Otherwise, common-mode noise can move out the shield 
and be picked up by the antenna. 

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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Re: [Elecraft] K2 filter alignment question

On Mar 18, 2010, at 9:44 AM, lstavenhagen wrote:

Reason I ask is I decided to revisit my filter alignment (partly for an
educational exercise to learn how this all works) and after fighting with a
spectrum analyzer (iSpectrum on the mac, which just got me way off each
time) I abandoned ship and tried this method. I was all set to put
Spectrogram on my work machine and use that instead to try again but this
seems to work far better.

iSpectrum should work just as well as Spectrogram. Using the CocoaModem Config
window works well, too. There is quite a bit of eye-balling to the filter
setting. Of course, if you don't pay attention, you may find yourself on the
wrong side of the passband.

The final step that I put into my filter calibration is to use my ears and
cycle between opposite sidebands (using CW REV) and make sure the settings
sound reasonable with each other, and they look good on the spectrum display.
If one of them sounds off, I'll jog the BFO frequency one tick one way or the
other and cycle through again. Doing it this way, I'm managed to get the
filters within 20 Hz or so of each other.

I've got a blog entry that has a bit more information on how I set up my
filters:
http://boringhamradiopart.blogspot.com/2010/02/configuring-elecraft-k2-crystal-filters.html

I don't use the variable bandwidth filter much more than 1 kHz wide, because it
starts to get asymmetric and makes for pretty harsh listening. I use the OP1
filter on SSB and use the DSP for high-QRM situations like in contests. (Of
course, I'm using KI6WX's 1.9 SSB filter, which is about 2 kHz wide, but has
less ripple than the original KSB2 2.0 kHz filter)

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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Re: [Elecraft] New Power Supply


On Feb 2, 2010, at 2:45 AM, Ruben Navarro Huedo wrote:

 I am using a Samlex SEC1223 with my K3.
 I have some electric-noise on low bands (80 and 40 meters) and i think 
 it comes from the power supply. I have been reading other friends with 
 the same problem.
 I want test another one.
 What is your recomendation?

When I got my K2 back in 2001, I was using a linear power supply. A few years 
ago, that power supply died when the power transformer primary opened. I bought 
a Samlex 1223 supply to replace it. I was impressed with the size of the unit, 
and it had no trouble supplying my K2/100 to full output, even on 160m. 

However, I was disturbed to find numerous spurs were audible on my antennas on 
160m. The loudest of these was near 1845 kHz, about an S7 on the K2 S-meter. 
Note that the location and strength of the spurs varies with supply load.

First, you need to identify if it is the Samlex that is causing the noise. I 
did this by momentarily turning the supply off. The K2 (and K3) draw little 
current in receive, so you should have about 2 seconds of receive before the 
radio goes dead. If the noise moves away rapidly or disappears completely, it 
is likely the power supply. I would recommend you try to find the strongest 
noise source for the load you have while receiving. Note that these switching 
power supplies will shift the intensity and location of their birdies when the 
load changes.

The SEC-1223 does not have a filtered AC cord. I used a snap-on toroid core to 
determine that the AC line could use some filtering. If your AC receptacle is 
already filtered, you can go directly to the DC output lines.

I found that putting a snap-on ferrite core around the power cord reduced the 
spur to an S5 indication. A similar reduction could be had by placing a snap-on 
ferrite around the power output leads.

My first modification was to de-solder the white and black power cord jumpers 
inside the unit in order to slip on seven FT50-77 toroids. After this 
modification, the spur was reduced to an S5 indication.

Since that wasn't sufficient, I then made a modification similar to that 
designed by ZL2DF and published by N0SS: 
http://www.n0ss.net/samlex_1223_rfi_mods_from_zl2df.pdf

My unit was different from ZL2DF, in that it did not have the screw / 
compression power terminals. Instead, my unit used two binding posts that were 
soldered directly to spade terminals on the PC board. 

After pulling out the PC board, I removed the spade terminals. I replaced these 
with 16 gauge wire fed through eight type 43 ferrite beads for each lead. The 
wire is small, but it is the largest that would fit through the beads. the 
output terminals are bypassed across each other and to chassis ground with .1 
50v multi-layer ceramic caps.

After this, the spur at 1845 kHz was just audible. At night, atmospheric noise 
covers it up.

This supply was originally designed to work with VHF/ UHF gear, and likely does 
well. With minor modifications, it is suitable for use with HF gear.


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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Re: [Elecraft] KPA500