Anyone any experience of, or thoughts about adding another 3 crystals to the K2
2nd crystal filter ?
73
Stewart G3RXQ
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I'm trying to figure out why the AGC feed (IF OUT) is taken off before the 2nd
Xtal filter in the K2.
73
Stewart G3RXQ
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Thanks Lyle,
Its not RTC is just dashes and any AFIL setting is 'not installed' so I
will check point 6.
I will let you know!
On Mar 4, 2005, at 11:41 PM, Lyle Johnson wrote:
Hello Neal,
I cannot get the initializing led to flicker on my kdsp2.
When I do the voltage checks, I really
Hello Stewart,
Tail end IF Filter: Given that the prime purpose of the 2nd IF Crystal
filter is to reduce wideband noise created by the MC1350 IF amplifier, which
comes out as audio hiss, yes a better filter would do a better job
provided that it is wider than the SSB filter. BUT I suspect that
On Mar 5, 2005, at 3:27 AM, Stewart Baker wrote:
Anyone any experience of, or thoughts about adding another 3 crystals
to the K2
2nd crystal filter ?
Hi Stewart,
The present 2-crystal filter (as on newer units, or older units with
the 2nd XFIL mod) is very carefully designed to provide
In 70's tight short skirts were popular.
I drove a Lotus and enjoyed the view
watching dates slide in and out of the Europa.
BTW still have car and girl friend is my wife
for last 33 years. Tim W4YN
Tim O'Rourke
[EMAIL PROTECTED]
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Thinking begets trouble. While reading the KXAT1 manual. Pages 9 10
show a random length wire antenna system using a POMONA 1296 BNC to
Dual Binding post adapter (mouser #565-1296 $11.83 or jameco #99354
$5.29). To my way of thinking ( here comes the trouble) 3 resonate wires
mated on 3
The T1 is rated at 20 W SSB/CW and 10 W FM/AM/digital modes, but we
wanted to make sure it could survive brief operation at much higher
power levels.
One of our field testers set up the tuner on all bands using three
different antennas, then transmitted at 100 watts intermittently. As
Let me add an addendum. My thoughts are running more towards field days
and camping. Then I get to SIT
[g] de rc kc5wa
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You fared better than I did Tim. I had a '76 Europa Twin Cam, the black
JPS job with gold pinstripes. Eventually sold it for lack of garage
space... my wife was happy, my son hated me ;-) I loved scaring people
by taking corners at speeds they thought were impossible.
Still married after 28
Thanks to all who made suggestions on the reflector. I have ordered a 40
meter hamstick. But in the meantime, I have been using a 24 foot piece of wire
attached to a magnetic mount I have on the roof of my Jeep (I attach it to an
old two meter whip I had).It seems to work okay. I am not yet
Hello all,
If you are my first or last QSO during the EPA QRP Club Polar Bear
Moonlight Madness Event on 3/25, you'll receive a nice National
Geographic Polar Bear Mouse Pad for FREE! Yes, the operative word here
is FREE! To look at it just click the link below.
3 resonate wires mated on 3 banana plugs will eliminate the need for the
KXAT1
I'll add my $0.02 here. If you use a 1/4-wave radiator (33' on 40m) then
you need a 1/4-wave radial system. I say system because you should use
4 radial wires to make effective vertical antenna with elevated radials.
He will want to make sure he does a VE3/Call or Call/VE3 depending what
net you talk to. The key is so the Canadian Ops know he is in country. A
bunch of nice guys over there!
73 Chuck AA8VS
- Original Message -
From: designer [EMAIL PROTECTED]
To: Elecraft@mailman.qth.net
Hi Everyone,
First my thanks to everyone who has responed to my
previous email on the same subject.
Just a quick progress report. I've proceeded thru
part one alignment of the RF board. Functioned as
designed!! Also have finished the voltage(?), freq
counter and RF probes.
The only
RC,
That would be great if you could get it to work - but it won't (at least not
as you expect). The other half of the antenna system is missing with a 1/4
wave wire, you need a return path for the RF wave - any end fed wire needs
something to work against to complete the antenna system, and RF
Like I said originally.
Thinking begets trouble..See now I'm in trouble
again for thinking [g].
tnx de 'rc kc5wa
W3FPR - Don Wilhelm wrote:
RC,
That would be great if you could get it to work - but it won't (at least not
as you expect). The other half of the antenna system is
On Sat, 2005-05-03 at 12:22 -0500, Chuck Mabbott wrote:
He will want to make sure he does a VE3/Call or Call/VE3 depending what
net you talk to.
Call/VE3 only, actually. Here's the relevant excerpt from RIC-2:
2. The operator of an amateur station licensed by the Government of the United
In a message dated 3/5/2005 10:49:28 AM Eastern Standard Time,
[EMAIL PROTECTED] writes:
One of our field testers set up the tuner on all bands using three
different antennas, then transmitted at 100 watts intermittently.
Wayne:
You meant: One of our intrepid field testers courageously
I am glad a 100W test was conducted. It is in high SWR that a tuner shows
its true colors.
Take this other companies record. We all know this company. I would say
all hams have owned one of their skimpy tuner/watt/swr/dummy load all in ones.
They are infamouse for parts not firmly in
I would like to find posts on the reflector such as tweaking the K2 but I
sure would hate to open up every month for the past 4 years. Is there a
summary or index somewhere? Sure would be nice if the archive had a search
engine.
73s
john-n3drk
John,
Sverre Holm LA3ZA maintains a very good composite list of mods for the K2 -
both 'Elecraft approved' and others.
Look at - http://www.qsl.net/la3za/K2/mod.html or link to it from the
Elecraft website www.elecraft.com.
73,
Don W3FPR
-Original Message-
I would like to find
Mike,
The soldering station you have in mind will do just fine; I am sure.
Personally, I have used Weller soldering tools. I use them at work and
am just used to them. The one that you're looking at from Jameco
looks like it will do the job just fine.
As far as the DVM goes, I didn't use
Mike wrote:
I need to upgrade some of my gadgets, though, and one
is the DMM - my current one doesn't measure capacitance. Does anyone
have any recommendations? Would the cheap one at
http://multimeterwarehouse.com/DT9205f.htm
be good enough? It's the age old challenge of trying to
Mike
I strongly recommend the AADC L/C IIB
(http://www.mtechnologies.com/aade/#lcm)
It has become a pretty much a standard for QRPers interesting in
homebrewing.
It is far more accurate and useful than the L and/or C measuring ability
of most DMMs.
When my sons were growing up and got into cars,
On Sat, 2005-05-03 at 14:35 -0500, n3drk wrote:
I would like to find posts on the reflector such as tweaking the K2 but I
sure would hate to open up every month for the past 4 years. Is there a
summary or index somewhere? Sure would be nice if the archive had a search
engine.
It does have a
I was just wondering if anyone has come up with a protective cover for the K2.
One perhaps made of leather, or ballastin nylon. It would fit tightly around
the radio with openings for the speaker and the heat sink area, and allowed
access to the front pannel. I guess what I am thinking about is
Would like to trade a real nice condition IC-706 MKII G (160 meters through
440) for a K2 with options. Icom has the following that comes with it:
350 HZ CW Filter
Saratoga E-Z PSK interface
Third party Computer interface (similar to the Icom CI-V)
Amp relay cable
Separation Kit
Tuner control
For Sale: A K2 top cover with a KIO2, KAT2 and KBT2 installed in perfect
working order, ready to plug in and use. This top cover was put on the
shelf when replaced by a KPA100. I haven't used it since the first of the
year so I'm selling it. All items work great and are ready to go. The KIO2
How difficult is building the DSP module.I see the A/D D/A board is
built.Excellent!
How about the rest of the DSP.I see there is a larger board under the
a/d;;d/a board
Consider downloading the KDSP2 manual from the Elecraft website and
looking it over. The kit portion is pretty
My MGB wasn't quite as sexy but served the same purpose..the YL
has been my XYL for the last 40 years.
Doug
W6JD
- Original Message -
From: Larry Phipps [EMAIL PROTECTED]
To: Tim O'Rourke [EMAIL PROTECTED]
Cc: elecraft@mailman.qth.net
Sent: Saturday, March 05, 2005 7:53 AM
Subject: Re:
They wanted to get the best possible antenna for going mobile(Car)
True, one cannot use a 16 foot whip on the exact center of the car for the
best omni directional performance.
Some swear by a 7 foot whip that has a load coil in the middle.
Should you go fiber glass or metal whip. One
Up until today, I have only used my K2 on 75 SSB and 40 and 20 cw.
Today I actually tried some 20 meter ssb, and I have very low output. On
all the bands, with my K2-100 setup, where I leave the power pot, I get
70 watts (CW) out agreeing with the K2 display within 10%. On 75 and 40,
I can
Sounds like you are looking at the qth.net Elecraft archive. We have two
different archives.
The one on qth.net is -not- searchable.
The one on ac6rm.net is more advanced and -is- searchable by keyword.
It also displays each day of postings by subject in a web format for
easy daily scanning.
Glad to know that Eric and Thank You for the info.
73s
john-n3drk
- Original Message -
From: Eric Swartz - WA6HHQ, Elecraft [EMAIL PROTECTED]
To: n3drk [EMAIL PROTECTED]
Cc: elecraft elecraft@mailman.qth.net
Sent: Saturday, March 05, 2005 5:49 PM
Subject: Re: [Elecraft] question on
I've tried everything Gary and I have thought of to get some
distortion out of my K2/100 on SSB. I now suspect the
trouble is with the KSB2.
I would like to swap out my KSB2 for a known working module.
I would be glad to pay shipping each way as well as whatever
is needed for the privilege
I have seen the 'cheat sheet' that was graciously posted on the
elecraft website but has anyone ever built an operators manual for the
K2?
It would have the setup and operating sections of the K2, KPA100 and
all of the modules. Today I have to look through a bunch of things
(although its
I use a http://www.niftyaccessories.com/Elecraft_RefGuide.htm manual. Take a
look.
Regards de Jim
- Original Message -
From: Neal Campbell and Sarah Ferrell [EMAIL PROTECTED]
To: Elecraft Reflector Elecraft@mailman.qth.net
Sent: Saturday, March 05, 2005 5:26 PM
Subject: [Elecraft]
Neal,
It covers setup and alignment (not operating), but you will find an extract
from the K2 manual on my website www.qsl.net/w3fpr. Most of the Operating
information is in the K2 manual in a single section (Chapter 8 -
'Operation')
73,
Don W3FPR
-Original Message-
I have seen the
Hi all
I have just finished alignment and test part 1 all is good
except the test for setting the AGC threshold when I adjust R1
i can only get a max voltage of 3.30v is this ok ?.
Thanks Mick M1MGD..
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Hi all
I have a Heil goldline with Kenwood adaptor cable that I used with
my TS-870 I would like to use this mic with the K2.
Do I need a mic pre amp or do I just set the jumpers for a standard kwd.
Thanks Mick M1MGDK2 #4785..
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Thanks Jim.
I will try that
Mick M1MGD..
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There were a number of external RF speech processor products
available in the early 80s. I can't find the schematic for my Kenpro
KP-601, but popping the cover I see something potentially
home-brewable (all this discussion drove me to find it, as after
changing compression ratios of the KSB2's
Mick,
I might believe 3.75 volts or above may be OK, but if you have run out of
adjustment range at 3.3 volts, something is wrong.
First, check the voltage out of your 8 volt regulator (Control Board U4).
If it is OK, look at the schematic for the Control Board (lower left corner)
to identify
Mick,
Set the K2 jumpers for the Kenwood configuration, plug in your Goldline and
give it a try. You may eventually find that you would benefit from a
preamp, but it will work as is - at least my Heil HC4 and HC5 elements
provide adequate (but not a lot of reserve) output for the K2 with the
ELECRAFT email LIST GUIDELINES
For those of you who are new to the list, (and for those of us who have
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The most important thing to remember is that this is
G3RXQ shared with us some measurements he made commented:
This performance was very much better than I expected. The passband has,
however
about a 2dB ripple in it.
I think it is this ripple that makes using my K2 on SSB seem tiring
to listen to as compared to other rigs. Reducing the
-Original Message-
... - but I just can't pull some things
through on the K2 that I can with the 950 fitted with decent after-market
filters.
Comparing the K2 to any other rig outfitted with after-market filters is not
really a fair comparison. It does make me wonder how the
I got s/n 3000, Don. A customer will get s/n 5000 sometime soon, but
I'm not sure who
73,
Wayne
N6KR
On Mar 5, 2005, at 5:46 PM, W3FPR - Don Wilhelm wrote:
Don't worry much about it - I would bet that someone at Elecraft will
be
getting SN 5000 - maybe Wayne - the plan was that he was to
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