Hello Group,
My XV50 (with crystal oven) is surplus to my requirement. It is well built and
fully functional. It has been so few uses that is in excellent cosmetic
condition. Come with all Elecraft documents.
Price US$325 inclusive of shipping by airmail. I accept payment by paypal or
The net ran on 3630 KHz from 0900 to 0930 hours local time (0800
- 0826 UTC). Conditions were quite poor with high local noise
levels.
Subjects discussed included the latest K3 firmware, especially
the ability to lock power levels, etc. for contest use. Ferrite
rod DF antennas for tracing 80m QRM
Hi Wes:
Not the Fine (tap) and hold down Fine button for coarse?
73,
John Seney, WD1V [fn42]
http://www.wd1v.net
603 627-6303
On Jun 18, 2009, at 8:58 PM, Wes Stewart wrote:
I just got my K3 back from Aptos. In the months that it was gone
I've apparently forgotten how to
CONFIG:VFO OFS - On
73,
Rich VE3KI
On Jun 18, 2009, at 8:58 PM, Wes Stewart wrote:
I just got my K3 back from Aptos. In the months that it was gone
I've apparently forgotten how to operate it.
I've always used the RIT control for coarse tuning. I've set the
steps in the config
Oops, I sent this to Don by himself, but thought I should send it to
the list just in case it helps someone.
Thanks Don, just an update. I re-nulled C55 and it nulled fine. When
I checked the voltage at U4 pin 1, it was 2.8V which was a little low.
Then I set R1 R2. After doing that, the
Jay,
Don't tear into it too quickly. Make some methodical tests first.
TRUISM:
If you successfully obtained a null while connected to a dummy load, and
then left that same dummy load connected when you checked the SWR
reading, the SWR will read 1.0 - if it does not, your null was not correct.
Hello Ron,
- Original Message -
From: Ron Edmon mailto:roned...@gotsky.com roned...@gotsky.com
Sent: Friday, June 19, 2009 10:40 PM
Subject: [Elecraft] DSP and IF Filters
I have been going through the manual on the K3 trying different combination
of DSP and IF as well as NR
Edwin
Try going into the RX EQ and boosting bands 4 and 5 by 6 to 8db. Then retry
your NR. I use a bit lower setting F1-2 or so.
Steve N4LQ
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Help:
Hello,
I have been hearing an annoying noise on 160m that has a pulse rate of about
1/3 of a second. After observing the behavior when I do certain things with
my K3 and my computer I found that the source of the pulsing is Ham Radio
Deluxe polling the K3 for VFO changes -- it polls every
Something else to consider is that the offending noise may not be
atmospherics at all. Newer 'wall wart' power modules used on many
electronics to drop the mains voltage to what the unit needs are often
switching power supplies. I have at least one that generates a broad-band
hash that has no
Too late. :) I noticed that two of the leads of T1 crossed over each
other under T1 and above the circuit board. They were tinned all the
way to the toroid so it looked like they might have been shorted. I
lifted the toroid a bit off the board and checked and got SWR of 1 to
1 on all bands.
I have a constant S5 to S7 noise floor here at my QTH.. It's both QRN and QRM.
This is especially true when the conditions change so that the DX is present. I
find that when I use NR 3-5 with Med5 I reduce the QRN by at least 2 S units.
I've never had an NR that actually reduced random band
Mitch,
You may be doing this already, but you can make a small loop antenna for
your HT (TH-F6A?) to DF the noise.
A really simple one is just a short SMA to BNC jumper with a square wire
loop (alligator test leads?) taped to a piece of cardboard.
When the loop is broadside to the noise, it will
I kinda felt that the K3 had a raspy and brash sound until recently when
I installed a filter that Elecraft has been testing. This filter helped
my K3 sound a lot more like my K1 and for that I'm quite happy. You
guys will also be happy if Elecraft kicks the board out as it allows you
to melt
What would be slick is to see the I/O board with a PCM2902 on it as
well. Most operating systems have drivers for this IC and it just shows
up as a sound card. So if a 2902 and a FTDIChip were plopped down and
tied to a hub you could have the radio when plugged in show up on most
computers
I know about the KPA/100 option for the K-2, but wonder if there are any
alternatives for obtaining 100 watts output or better from the K-2. I am
looking for an amplifier that might produce 100 watts or better with an
input of only 10 watts from the K-2. If anyone knows of one out there it
would
Jay,
At least you now know the source of the difficulty.
Did you count the turns correctly? The first pass of the wire through
the core is one turn, a full wrap around the core is two turns.
You must get the proper leads into the right holes, and the leads must
be well stripped.
You did
You can do a lot more than 38400 over RS232 as well so even if the K3
goes to USB you're probably not going to see more than 38400 being piped
over. But yes audio could be added via another USB endpoint.
On Tue, 2009-06-16 at 15:31 -0400, Steve Ellington wrote:
Physical properties aside, USB's
Bring it on!
Regards,
Mike VP8NO
- Original Message -
From: Brett Howard br...@livecomputers.com
To: Dave G4AON elecr...@astromag.co.uk
Cc: elecraft@mailman.qth.net
Sent: Sunday, June 21, 2009 4:24 PM
Subject: Re: [Elecraft] K3 vs. Icom IC-7600
|I kinda felt that the K3 had a raspy
Ron,
Your best bet is a KPA100 - it couples with the K2 and everything is
automatic in operation. I recall that the FCC requires amplifiers which
operate with less than 50 watts input to be sold legally in the US, so
you do not see many amplifiers with 100 watts out and 5 or 10 watts in
Try http://www.communication-concepts.com/
I built one of their 140 watt amps for a 20 meter HB SSB rig. I only have
it configured for one band, 20 meters, but left room to add filters for all
HF bands. It works great.
Frank - W4NHJ
- Original Message -
From: KM4VX
Tell us more about this filter!
Bob NW8L
On Sun, Jun 21, 2009 at 2:24 PM, Brett Howardbr...@livecomputers.com wrote:
I kinda felt that the K3 had a raspy and brash sound until recently when
I installed a filter that Elecraft has been testing. This filter helped
my K3 sound a lot more like my
Hi,
I remember reading somewhere about audio distortion from the K3 on receive.
I have noticed recently that the internal speaker has a vibration sound to it
at all volume levels except very low setting where I can't hear it but it is
too low a volume to operate comfortably.
Serial 679
After loading 3.19 frimware into my K3, I no longer get 120 watts when
denting power at maxium. I do get 12 watts on the low scale. I did
recalibrate my Tx, 1 mw, 5 w and 50 w with dummy load.
Anyone with the same? Amy insite?
Sent from my iPhone
Karl MARDERIAN wrote:
After loading 3.19 frimware into my K3, I no longer get 120 watts when
denting power at maxium. I do get 12 watts on the low scale. I did
recalibrate my Tx, 1 mw, 5 w and 50 w with dummy load.
Anyone with the same? Amy insite?
Yes, that was an intentional change
Its probably because something has worked slightly loose. Try rummaging
around with a finger for a bit and see if you can curb the vibration
then go after it with speaker cloth or some other form of rubber
gasketing material.
~Brett
On Sun, 2009-06-21 at 21:36 +, rfenab...@gmail.com
Anyone out there want to trade a set of KFL3A-500 and KFL3A 200 Hz filters
for a set for a set of KFL3A-400 and KFL3A-250 -- or any combination
thereof that leaves me with a matched set for diversity receive purposes?
Contact off-line ve1...@rac.ca plse.
Gary, VE1RGB
What would be slick is to see the I/O board with a PCM2902 on
it as well. Most operating systems have drivers for this IC
and it just shows up as a sound card.
PCM2902 is not exactly the best chip for this application. W7AY
has documented some issues in some operating systems and
See http://www.hfprojectsyahoo.com/
Leigh/WA5ZNU
I know about the KPA/100 option for the K-2, but wonder if there are any
alternatives for obtaining 100 watts output or better from the K-2. I am
looking for an amplifier that might produce 100 watts or better with an
input of only 10 watts from
Thank you again for your help. I must have messed up the re-install
of T1. I removed it, then put it back and now everything works as it
should.
So blame this problem on T1 also - twice. Once the way we got the
radio and once that was my fault.
Now on to the KNB2, K160RX and KDSP2...
73
Leigh,
I've asked this question recently but have not received and responses.
Perhaps there are a couple of folks out there that have found a
compatible amp that can provide 100W or a bit more. QSK would be a FB
added attraction.
Dick, K2ZR
Leigh L. Klotz, Jr WA5ZNU wrote:
See
I have an amp that low in puts out 140 w, a pair of NTE 335's. I don't
remember who made it, something like CCS I can't remember the add. Probably
not much help but let's you know there is hope! I'll dig around I have some
notes somewhere.
Paul K7PM
Elecrafters,
Thanks to all who for their patience and assistance as we struggled through
poor conditions and an NCS on the opposite coast from typical. I commenced
on 14.319.6, due to QRM. Thanks to all for tuning to find today's frequency.
Also, thanks to stations who made calls for check-ins
-Original Message-
From: Carl Smithson [mailto:carlsmith...@dishmail.net]
Sent: Sunday, June 21, 2009 5:46 PM
To: 'KM4VX'
Subject: RE: [Elecraft] Amplifier for K-2/10
The Yaesu Ft-301 came in two versions, the 10 watt and the 100 watt. I have
used the detachable amp from the 100 watt
I've been contemplating putting the KPA/100 in a seperate enclosure.. and
running with the K2, optionally to feed the KPA or not... but keeping it
seperate from the K2.
Are there any particular problems with that process? And I am with Dick.. QSK
is paramount, with or without the amp.
To the person wanting an external unit for the k2, it can be built into a
separat box and connected externally. Best of both worlds. disconnect two
cables, and away you go with a portable 15 watt k2.
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Elecraft mailing list
Home:
Good Evening,
The bands were a little strange this evening. Twenty meters was much noiser
than forty meters. Since I do not have much time between nets to prepare and
eat dinner I could not go outside for a quiet break. Luckily when I got on
forty meters the band was simply weak and not
Early post, but I leave tomorrow for our FD site, and www access is limited.
If you work K5M/3A-WTX you will be working an all K3 FD effort. One on SSB,
one on CW, and one on the digi modes. We bought the K3 just for this and
from all reports and tests, will no longer have inter-station QRM!!!
I need some help troubleshooting a KAT issue.
I have a K2 (+KAT + Serial + 160m + 60m/transverter interface) that I have
used quite a bit without any issues.
This weekend I decided to take my K2 out of town for the weekend on a family
trip. I figured that I could measure cut the wire dipoles,
Please give us a post-FD reply to this posting.
-rick, K7LOG
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W5CEM
Sent: Sunday, June 21, 2009 8:01 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] FD with K3's
Early
Ken K0PP has pointed out I said it all wrong. With my poor choice of
the terms I have confused even myself, and produced gibberish.
I'll quote Ken because he said it clearly:
Loops, if built correctly, have a NULL in both broadside directions
... through the hole in the loop, so-to-speak.
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