[Elecraft] Elecraft CW Net pre-announcement

2006-07-19 Thread Kevin Rock

Howdy Folks,
   I am going to play things a little differently this coming Sunday.   
I've been invited down to Hillsboro for a picnic to fete the folks who  
worked comms at the local airshow.  I wish to take my K2, some antenna  
wire, and the rest of my gear down to the park where they are having the  
feast to show folks how a CW net sounds.  I will need your help to relay  
stations in since I'll be in the city with its RF noise problems, a  
definite lack of elevation, and a temporary antenna to lessen my hearing  
ability.  I may have to run lower power than normal too so you all may  
have to push your rigs to hear me.  But, if I get a few folks to help  
relay stations, or even act as NCS folks I'd be much obliged.
   Please think about working as NCS or a relay station so we can show the  
CERT and ARES folks how much fun it is to get on HF and work with friends  
across the continent.  I'll be under observation so my normally 'sporadic'  
fist will grow a bit more shakey.  Bear with me while folks tweak me from  
both ends ;)  It should be fun, enlightening, and a bit stressful for poor  
Kevin.  However, if we can gain even one op to the CW fold we've more than  
won.  We may even sell a few of Wayne's rigs too!!  I think he and Eric  
would get a kick out of that.
   I'll write more later but simply wanted to provide a bit of information  
on what is to occur this Sunday.


Until then stay as cool as you can,
   73,
  Kevin.  KD5ONS  (Net Control Operator 5th Class)
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RE: [Elecraft] KPA100 advice

2006-07-19 Thread Don Wilhelm
John,

Two reasons for mounting it on the K2 first:
1) You will be following the instructions as written in the manual - it is
just easier that way rather than trying to interpret the effects of working
two sets of instructions at once.
2) When you have finished the testing, you will know that the KPA100
functions properly when connected directly to the K2, so if you have
problems when it is moved to the external enclosure, you will know that the
KPA100 is likely not the cause of the probelm.
As an added third reason - the mounting of the KPA100 in an external
enclosure is not directly supported by Elecraft (they do not discourage it
either).

If you feel confident that you can analyze and troubleshoot whatever strange
problems may arise by mounting it in the external enclosure, then by all
means do it that way - but then if you had that kind of confidence, you
likely would not have had to ask the question.

Step by step, one step at a time, is usually the best way to reach the
goal - leaps and bounds can cause you to falter and fall.

73,
Don W3FPR


> -Original Message-
>
> Hi everyone!
>
> I am just at the end stages of KPA100 build.  I intend to mount in an
> accessory cabinet along with the antenna tuner.  This is not exactly
> addressed by instructions by Elecraft but is covered on a web page
> that I have downloaded.
>
> My question is whether I should mount the KPA100 in the K2 first,
> then transfer after testing?  Or would this be waste of time?
>
> Thanks,
>
> John
> AB8WH
>

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[Elecraft] KPA100 advice

2006-07-19 Thread John Wiener

Hi everyone!

I am just at the end stages of KPA100 build.  I intend to mount in an  
accessory cabinet along with the antenna tuner.  This is not exactly  
addressed by instructions by Elecraft but is covered on a web page  
that I have downloaded.


My question is whether I should mount the KPA100 in the K2 first,  
then transfer after testing?  Or would this be waste of time?


Thanks,

John
AB8WH 
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[Elecraft] K2 build coming along.... Just a couple questions.....

2006-07-19 Thread Vern Kollas
First off, hello to everyone on the list and thanks in
advance for all the help you have given me in deciding
to buy/build a K2.  I purchased the K2 about a month
ago when Elecraft was running the "Dayton Special".  I
got the K2, SSB module and the KPA100 option with the
Heil headset.  Anyway  The build is going along
quite well , but I just wanted to add a couple of
observations for the group to ponder just to verify I
am on track with the build and if I need to check
anything BEFORE I move on to the final assembly of the
RF board.

Here are my observations so far:

Alignment & Test part 1, everything worked first time
on!!  The only thing I saw was in adjusting the AGC
Threshold is that I had to turn R1 ALL the way to one
end to get the 3.80V suggested level.  To me, this
doesn't seem to leave much room for change later, but
still falls into the suggested value.  Any thoughts
here that I should keep in mind for later here???

Alignment & Test Part 2, Again here, everything falls
into the "typical" ranges. My question here for
everyone is regarding C22.  I have read in the
archives about everyone's experience in how to obtain
the best calibration, but no one has mentioned their
final frequency read out in the counter.  Mine reads
3999.98 REGARDLESS of how I adjust C22.  I have moved
it throughout its entire range and the frequency never
changes.  However, even with this frequency, the other
calibration steps in this section ALL fall into the
proper ranges.   Is this something I should be
concerned with right now, or will it "correct" itself
once construction is complete and I go to do a final
alignment?  Also, is it then safe to assume that if
the reference is off, will it then throw off the VCO
alignment and affect the VFO linearization later??  

If so, then my other observations would make sense. 
Once I completed all the Alignment steps in this
section, I hooked the K2 up to my HF dipole and
started comparing what signals the K2 could hear
compared to my FT-857.  The differences that I did
notice here were that that displayed frequency is
below what the Yeasu would show, and that the S-meter
didn't show the same signal strength.  I did hook up
my XG2 that I built while waiting for the K2 and I do
get an S9 on BOTH the  '857 as well as the K2 at the
50uV range(as it should) and the '857 shows an S3 at
the 1uV level and the K2 shows an S2, so this test
show both radios to be about the same there, but an
"on air" signal was different.

Anyway... Sorry for the long post, but I find that
more details tend to help get better answers.  Thanks
for letting me ramble here and of course thanks for
your thoughts as I make my way through this wonderful
journey of building the K2.

73!!

Vern -- KC8YOH

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[Elecraft] QSK

2006-07-19 Thread Rajiv Dewan, N2RD
Did an A/B comparison of QSK between the K2 and my Yaesu 1KMP that I  
have owned for many years.  To give Yaesu all the advantage I could,  
I set the delays to zero, no linear, set the linear switch to off (it  
affects the timing), and turned on the DSP.  The received audio on  
the Yaesu was horrible compared to the K2.  While the K2 was smooth,  
almost as if I did not have breakin turned on, the Yaesu audio was  
full of low frequency thumps and distortion so much so that it made  
it hard to copy well between morse elements.  I was transmitting at  
around 35wpm.   I was using cascaded 500Hz filters on the Yaesu and  
the K2 filter was at the 400Hz setting.  I also have the INRAD  
roofing filter installed on the Yaesu.


Yaesu: fully loaded with all crystal filers and the roofing filter
K2: Stock with KDSP2

But, I guess that the people on this list already know this!

I bought the K2 to use primarily as an IF rig for VHF and up.  I was  
planning to use the Yaesu for all HF contesting.  I am now changing  
my mind.  I just ordered the KPA100/KAT100 combo.  I mostly do LP, CW  
contesting.  The K2 seems ideal.


Raj, N2RD
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[Elecraft] Re: Amp Keying Circuit

2006-07-19 Thread zl1aih
David VK2NU wrote :-

Thanks for all the responses to this - much 
appreciated.

I'm afraid it was a simple case of me not reading the 
instructions on
the keying circuit.

The FL-2100B pulls 20v on its keying input, whilst 
the circuit for the
K2 is only designed for 5-12v !! This is clearly written 
on the
instructions with the circuit, which I neglected to 
read. 

Does anyone have details of a simple circuit I can 
build, so I can use
this with my FL-2100B ??

Again, many thanks for the all the replies !!

David, VK2NU

Hi David - go to 
http:www.qsl.net/icom/ampcontrol.html
There you will see two very simple and reliable 
interface circuits that will enable almost any amp to 
be keyed safely by almost any transceiver.
To take care of older (high keyline voltage) amps, 
use MJE340 and MJE350 (negative and positive 
keying respectively).   I built mine in old Colman's 
Mustard tins, two RCA sockets - powered by the 
amp relay volts - easy 10 minute job.
Using the amp keying circuit by Tom N0SS, my K2s 
happily key an L4B, or any of the other amps in the 
shack.
Apparently Icom had a problem with keying relays in 
some of it's transceivers  - hence the need for these 
interfaces.
73, Ken ZL1AIH 
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[Elecraft] KX1 quirk: no AF nor HF output at all

2006-07-19 Thread pa3gyu

Couldn't find anything in the archives, so here goes.

My KX1 showed a strange problem. I had put it away in full working order 
about a week ago. Yesterday I wanted to listen to some live CW to polish up 
my skills. It switched on ok, but there was absolutely no audio output. Not 
even a hint of hiss. I tried several headsets, nothing.
Also, there was no HF output at all into a dummy load. I thought it wise to 
refrain from taking it apart at that time...


So this evening I tried again. No HF, no AF, the display was working okay, 
I could switch between all bands and the tuning seemed to be working as 
well. Battery power is 8V. I decided to see if the receiving circuits were 
still with me, but found that the S-meter indicated a strong signal all the 
time: it could not distinguish between the XG1 being switched on or off or 
even being disconnected!


Hmmm... I took out the KXAT1 and without even putting the jumper in the 
audio hiss was there when I turned the KX1 on. I put the KXAT1 back in and 
it came fully alive with all bells and whistless working like a charm.


What the hack is going on here? Anybody seen this before?

Bart de PA3GYU

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[Elecraft] RE: OT: FS: Bird Wattmenter with 5 UHF/VHF slugs

2006-07-19 Thread Jim Sheldon
Sorry guys, Wattmeter sold within 5 minutes.

W0EB 


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[Elecraft] OT: FS: Bird Wattmenter with 5 UHF/VHF slugs

2006-07-19 Thread Jim Sheldon
I have for sale,  one used Bird Thruline wattmeter, model 4431 (same as the
model 43 but it also has a built-in, adjustable RF sampler that is brought
out to a BNC connector.) Used ones are going for around 400 bucks with no
case or RF elements (slugs).  Cosmetically this one has some paint chips and
scratches, but is fully functional.  The included leather case is sadly in
need of some TLC, but still protects the meter properly.  

I'll sell this one for $200 plus shipping (USPS Priority or FEDX Ground)
with the following RF elements (the only elements I have) 5A(5 watts, 25-60
MHz), 50C(50 watts, 100-250 MHz), 50D(50 watts, 200-500 MHz), 100C (100
watts, 100-250 MHz) and 100E (100 Watts, 400-1000 MHz).

I'll take certified check, money order or Pay Pal

Interested?  please reply off the reflector to:

Jim Sheldon, W0EB
[EMAIL PROTECTED]

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[Elecraft] N2CQ QRP Contest Calendar: July 19 - Aug 21, 2006

2006-07-19 Thread Ken Newman

~~
N2CQ QRP CONTEST CALENDAR
July 19 - Aug 21, 2006 
~~

Summer FOX Hunt - QRP 20M CW
UTC: Every Fri thru August 18, 0100z to 0229z 
EDT: Every Thur thru August 17, 9 PM  to 1029 PM

Info: http://www.qrpfoxhunt.org/
~~
NAQCC Straight Key/Bug Sprint *** QRP CONTEST! ***
EDT: Jul 19, 8:30 PM to 10:30 PM
UTC: Jul 20, 0030z to 0230z
Rules: http://www.arm-tek.net/~yoel/contests.html
~~
VK/trans-Tasman Contests (160m CW) ... QRP Category
Jul 22, 0800z to 1400z
Rules: http://home.primus.com.au/vktasman/
~~
Islands On The Air Contest (CW/SSB) ... QRP Category
Jul 29, 1200z to Jul 30, 1200z
Rules:  http://www.contesting.co.uk/hfcc/calendar.shtml
~~
Flight of the Bumblebees (CW) ... QRP Contest!
Jul 30, 1700z to 2100z
Rules:  http://www.arsqrp.com/
~~
Ten-Ten QSO Party (PH) ... QRP Category
Aug 5, 0001z to Aug 6, 2359z
Rules: http://www.ten-ten.org/calendar.html
~~~
TARA "Grid Dip" Contest  (PSK/RTTY) ... QRP Category
Aug 5, z to 2400z
Rules: http://www.n2ty.org/seasons/tara_seasons.html
~~~
EUROPEAN HF CHAMPIONSHIP (PH/CW) (EU work EU) Low Power Category
Aug 5, 1200z to 2359z
Rules: http://lea.hamradio.si/~scc/euhfcrules.htm
~~~
ARRL UHF Contest ... Low Power Category
Aug 5, 1800z to Aug 6, 1800z
Rules: http://www.arrl.org/contests/calendar.html?year=2006
~~~
North American QSO Party (CW) ... 100W Max.  (/QRP noted on entry)
Aug 5, 1800z to Aug 6, 0600z
Rules: http://www.ncjweb.com/naqprules.php
~~~
Adventure Radio Spartan Sprint (CW) *** QRP CONTEST! ***
Aug 8, 0100z to 0300z (First Monday 9 PM EDT)
Rules: http://www.arsqrp.com/
~~~
NAQCC Straight Key/Bug Sprint (CW) *** QRP Contest ***
EDT: Aug 8, 8:30 PM to 10:30 PM
UTC: Aug 9, 0030Z to 0230Z
Rules: http://www.arm-tek.net/~yoel/contests.html
~~~
Worked All Europe DX Contest (CW) ... 100W category
Aug 12, z to Aug 13, 2359z
Rules: http://www.darc.de/referate/dx/xedcwr.htm
~~~
Maryland/DC QSO Party (SSB/CW) ... QRP Category
Aug 12, 1600z to Aug 13, 0400z
Aug 13, 1600z to Aug 13, 2359z
Rules: http://www.w3cwc.org
~~~
SARTG WW RTTY Contest ... Low Power Category
Aug 19, z to 0800z
Aug 19, 1600z to 2400z
Aug 20, 0800z to 1600z
Rules: http://www.sartg.com/contest/wwrules.htm
~~~
QRP ARCI Silent Key Memorial Contest (CW) *** QRP CONTEST! ***
Aug 19, 1500z to 1800z
Rules: http://www.qrparci.org
~~~
?BUBBA Summer QRP Sprint *** QRP CONTEST! ***
Aug 19, 1600z to 2200z
Rules: http://www.azscqrpions.org
~~~
North American QSO Party (SSB) ... 100W Max.  (/QRP noted on entry)
Aug 19, 1800z to Aug 20, 0600z
Rules: http://www.ncjweb.com/naqprules.php
~~~
NJ QSO Party (CW/SSB)  
Aug 19, 2000z to Aug 20, 0700z

Aug 20, 1300z to Aug 21, 0200z
Rules: http://www.qsl.net/w2rj/
~~~
RUN FOR THE BACON (CW) *** QRP CONTEST ***
EDT: Aug 20, 9 PM to 11 PM
UTC: Aug 21, 0100z 0300z
Rules: http://fpqrp.com
~~~

Thanks to SM3CER, WA7BNM, N0AX(ARRL) and others 
for assistance in compiling this calendar. 


Please foreward the contest info you sponsor to [EMAIL PROTECTED] and
we will post it and give it more publicity.
Anyone may use this "N2CQ QRP Contest Calendar" for your website,
newsletter, e-mail list or other media as you choose.  
(Include a credit to the source of this material of course.)

72 de
Ken Newman - N2CQ 


http://www.amqrp.org/contesting/contesting.html
http://www.n3epa.org/Pages/Contest/contest.htm


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[Elecraft] strange K2 160m power problem

2006-07-19 Thread R. Torsten Clay
In the process of calibrating my LP100 wattmeter, I was hopping back and forth 
between bands and transmitting. I discovered a strange problem with my K2/100 
#3134. This is what happens:


First, I have the K2 hooked up to a dummy load. I also confirmed that this 
happens with a different wattmeter in line. I am keying the K2 with a straight 
key.


1. I transmit on 28 MHz. I get about 100w out.
I press "band -" several times until I get to 1.8 MHz. Putting the
key down, I get about 110 w out as expected.

2. I transmit on 28 MHz. I get about 100w out.
I press "band +" once to get to 1.8 MHz. Putting the key down, I get
170 w out !!!

In other words, it makes a difference whether I go from 10m to 160m either by 
pressing Band - several times, or Band + once. Pressing Band + once somehow 
screws up the tx agc. The problem does not seem to be in the KPA100, because if 
I turn the power down to 10W I get similar response (10W one way, 15W the other 
way).


My other K2 (similar SN) does not do this, or if there is a difference in the 
160m power it is too small to notice. The only thing different about #3134 is 
that is has somewhat lower 10m tx power, about 7W max without the KPA100. But 
it can still make 100w on 10m with the KPA/100.


Ideas?? If I twiddle the power control AFTER I start transmitting on 160, the 
power returns to the correct level from 170w.


I think this caused me to smoke the matching network on my 160m shunt-fed 
vertical during the IARU contest. I was driving an Ameritron AL1500 amp, which 
only needs about 50w drive to make 1500w out. When I first went to 160 in the 
contest, the swr jumped like crazy, and I confirmed by going outside that a 
doorknob cap in the shunt feed was smoking! I can't remember if I was on 10m 
before I qsyed to 160, but it is possible since I made a bunch of contacts 
there. I suspect that the increased drive put me way over 1500w for a short 
time.


Torsten
N4OGW/5
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[Elecraft] Re: Elecraft Digest, Vol 27, Issue 20

2006-07-19 Thread Paul Mayo
Sounds familar Mike --  I just finsihed my K2 last week.  When I tried 
installing the nut -- it did not fit.
If you read the instructions somewhere it says -- remove the nuts supplied 
with the antenna and key/speaker jacks -- well in my case they were removed 
and supplied separately.  I decided to leave them all off for time being as 
I am now building SSB, K60 and DSP options and will have to dissassemble the 
RF board to install these. Will eventually go to my junkbox to find a proper 
nut.


73 Paul W4MAY
K2 SN 5627


- Original Message - 
From: "Michael Cook" <[EMAIL PROTECTED]>

To: 
Sent: Tuesday, July 18, 2006 4:19 PM
Subject: [Elecraft] K2 Antenna Nut: It can't be this hard



Hi all. I've been assembling my K2 since thursday and having a ton of
fun. Last night I just finished the last assembly steps and I'm about  to
move on to the third set of testing (and aligning) of the  transmitter.

There is just one thing that has got me stuck: the nut that goes on  the
antenna jack.

This can't POSSIBLY be this hard. I've tried. I've had someone else  try.
I just can NOT get the thing on. It seems impossible to get the  thing on
straight. If I do get it to catch it quickly seems to end up  crooked and
then falling off.

Is there some kind of special secret here? I've even tried screwing  it 
on

backwards (CCW instead of CW) but that didn't work (no surprise).

Tips?
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[Elecraft] Low SSB TX power on K2 - REPAIRED !!!

2006-07-19 Thread N9KO
The problem has been solved, thanks to the sleuthing of Bill, NY9H.  It 
turns out that the problem was a shorted crystal (X3 or X5).  Once the 
solder was removed and then properly soldered, the K2 transmits normally in 
SSB. We made a quick QSO with a station in Miami verifying that it is 
properly working.   So, if you have low ssb TX and all voltage readings are 
'normal', double-check the crystals for being shorted-out.


Thanks to Bill, NY9H and all of those who responded with suggestions.

Cal
N9KO

- Original Message - 
From: N9KO

To: Elecraft@mailman.qth.net
Sent: Wednesday, July 05, 2006 10:48 AM
Subject: Low SSB TX power on K2


I recently picked up an older K2 # 185.  It's had all the important 
Elecraft-recommended performance mods and Alerts applied, including the "A 
to B" upgrade.   The rig works FB on CW.  I am disappointed with the SSB 
performance, even after using three mikes (and changed mike pin jumpers).  I 
scanned the email reflector and decided to do voltage checks of the ICs and 
diodes on the SSB board.   The SSB board is Rev. C. There is no reading on 
the S-meter when I transmit, and no reading on ALC.   I do get a very weak 
signal when I used each of the three mikes and listened on my other rig.  I 
also transmitted PSK and again get a weak signal, however, the IMD was -23. 
A couple of hams within 5 miles said they heard me on 20 meter SSB, but just 
at the noise level.  Another ham who lives about 10 miles away could not 
hear me, but I heard him calling me.  Firmware is 2.01H and IOC 1.02. 



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Re: [Elecraft] Is CW a Language? OT

2006-07-19 Thread Karl Larsen

Christopher A. Kantarjiev wrote:

After many months, this thread rears its ugly head again :-)

At the time, I said that I would take a crack at updating "Your Novice 
Accent" and collecting resources for the new ham who is trying to get 
proficient at CW.


I decided, after a while, that updating YNA was something I didn't 
want to try, but Dan KB6NU has done so at 
http://kb6nu.com/your-novice-accent/. By all means, take a look.


Instead of trying to make a coherent article, I did the 21st century 
thing of collecting a bunch of links and stitching them together into 
a web page with stream-of-consciousness text. Tom N0SS and Fred K6DGW 
were a great help in this endeavour. Please take a look at 
http://www.dimebank.com/cak/k6dbg/k6dbg_cw.html and send me any 
comments and criticism you might have...


Always learning,
73 de chris K6DBG
   Hi Chris, I teach the code and have gone through the Koch and 
several other things to the Chuck Adams CD-ROM. It happens that making 
the CD-Rom is a problem if your not a computer geek. I am one of those 
and so I had the Students buy their own MP3 players and I gave them the 
CD-Rom.


   It was not perfect but it was good. Out of 9 students 3 quit after 
the first day. One student was 6 years old and she was ALSO learning the 
Letters and Words at school. She had trouble, after hearing the CW for g 
figuring out how to write g :-)


   I set up a VE session right after the class which was 3 weeks, 5 
days a week for 1 hour, and 4 passed the 5 WPM code AND the General 
written by taking the tests on the QRZ web site.


   I think the idea of starting to learn A at 15 WPM is a good idea. 
Only one person had trouble with the speed. The serious problem is the 
person who will not LEARN to get the CW from the same part of the brain 
we store how to write g :-)


73 Karl K5DI


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RE: [Elecraft] KPA100 oscillation during IARU Reg 1 Field Day...now OK

2006-07-19 Thread Jukka Tarvainen
Hello again!

Now KPA100 works OK. Just did all alignment tests. I replaced diodes 11, 12,
13, 14, 16 and 17 and transistors 3, 4, 6 and 7. Parts I got from Mouser,
one week delivery by mail. Now I need to order new thermal pads from
Elecraft, before I really use KPA100. Thank you Don W3FPR and Tom N0SS for
email support.

73 GL
Jukka, OH4MFA
K2/100 #4293


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