Daniel,
All upgrades are included in all K2s after serial number 4300. The
firmware should work fine. If you want to check the firmware level,
hold any button while powering on and the MCU and KIOC levels will be
briefly displayed - the latest is 2.04r/1.09.
Since the KSB2 is installed,
I opened N1MM+ to check operation with RTTY in the hope that if it
worked, its settings may be a clue to what was wrong for the other
soundcard-controlled digital modes. I initially noticed the RTTY window
would populate what I sent but still no power out. On a hunch I pushed
the XMIT (PTT)
Hi Daniel,
I'll let others handle the bulk of your questions. I have two K2's (s/n
567 and 6911). One QRP, the other with a KPA100. One with the KAF2 and
the other with the KDSP2. I highly recommend the KAF2. For me, it has
been very effective. With the KDSP2, I have to be retrained on how
Daniel,
1,3. As I first rig I might be inclined to check through all the calibrations,
but there is no reason to not assume that all is okay for now and see how the
rig performs; although filter tuning can be a little personal. So maybe get a
copy of spectrogram, hook the rig to your computer
Hello, all,
My name is Daniel, AG5UT, and I recently purchased a second-hand K2 (#5240) as
my first HF rig. I believe it’s in good working condition—I haved been able to
successfully confirm it transmits, but have yet to have a QSO. It has the
following options installed:
* KSB2 (1.08b)
*
As I stated, I can hear audio through headphones from the computer's
speaker port when I key the rig in WSJT-X.
Assuming you have more than one sound card with one driving the
computer speaker and the other connected to the K3/K3S "Line In"
if you hear sound from the computer speaker WSJT-X
If you have a KX3 that you would like to sell please let me know the details
(options, condition, S/N)
I can pay by paypal.
73
Dave N1IX
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Help:
Ed,
Is this a K3 that has been upgraded with the KIO3B option? Or is it a K3S?
If so did you plug anything into the LINE IN jack on the back - either
intentionally or by mistake? That will open the path for the internal
soundcard output.
Switch to SSB and try transmitting voice - if that
I've been using my K3 almost exclusively on WSJT-X FT8 since the mode
came into being. Things worked fine until a couple days ago when I no
longer see any power out or ALC indication regardless of band setting.
All connections remain as before, untouched. I switched to MMTTY and
AFSK-A to try
Hi Conrad:
I'm looking forward to your tests. I have things set up per Don's and Bob's
suggestions at the moment.
Windows level: -14.7db
fldigi level: -15.7 db
K3s level: 31
Again, I have not way to test quantitatively but the couple of comments
seems to indicate things are fine. I have this
Don, it depends on the hardware. I would be very surprised if the Audio codec
used in the K3S can reach full scale with the windows mixer at max. I expect
that it is limited to -1dB FS. Also I believe that there are further limits
imposed i WSJT-X. Therefore there should be no reason for
Conrad,
Do check and adjust the Windows soundcard controls to mid-range. When
set to extremes, it can cause clipping and distortion.
With the K3S, the internal soundcard will identify as USB AUDIO CODEC.
73,
Don W3FPR
On 6/17/2019 11:21 AM, Conrad PA5Y wrote:
Don of course it is not a
Don of course it is not a power control, that is obvious to me.
I am very fortunate to have a lot of RF and Audio test equipment available both
at home and at work so I will measure what works best and try to understand
why. I will be happy to share my findings. I will of course read your
Bill,
Congratulations, it sounds like you have achieved success.
Once set the K2 alignment usually remains stable for a long time. If it
ain't broke, don't fix it!
Don W3FPR
On 6/17/2019 10:36 AM, Bill Coleman wrote:
Well, I think I finally got it sorted.
I replaced D1 and D2 on my
Well, I think I finally got it sorted.
I replaced D1 and D2 on my KAT100. One of the diodes was good, the other was
likely bad since I couldn’t get the SWR bridge to null, but I destroyed it
while extracting it from the board.
New diodes are in machined socket pins, which will make them easy
Conrad and all,
The POWER control in WSJT-X is a misnomer. It is actually an audio
level control. Do NOT use it to control the power with an Elecraft
transceiver - set the audio correctly and use the power knob to control
the power.
While other amateur transceivers can be made to control
Historically there were all kinds of low level artefacts produced by Windows
audio algorithms, including the volume control. This was caused by insufficient
precision leading to truncation artefacts. I have not tested it for a while and
so it may no longer be the case. The result when I did
Kev:
First the ALC indication should be, no must be, 4 bars solid and the
5th bar flickering. To monitor your signal, use the MON function of
the K3S. It should sound VERY clean. If there is buzz, growl, humm or
anything besides pure tone, there are issues to be resolved. Check all
* On 2019 16 Jun 22:04 -0500, Bob McGraw K4TAX wrote:
> Yes, lugs can not be soldered alone. They must be crimped first and THEN
> soldered. At the same time, some installations of aeronautical equipment,
> along with NASA procedure, I do understand does indicate sweating solder
> into the lug
This leads me to think if soldering lowered the “noise floor” over just
crimping that the crimp wasn’t done properly. A proper crimp doesn’t leave any
space for solder to fill
Sent from my iPhone
...nr4c. bill
> On Jun 17, 2019, at 4:32 AM, hawley, charles j jr
> wrote:
>
> Interesting
Interesting about the additional soldering and resultant noise reduction. A
chart from the Indium Corp shows 63/37 solder to be about 11% of the
conductivity of copper. I guess that's better than air though.
https://www.microwaves101.com/encyclopedias/soldering-basics#chart
Microwaves101 |
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