Here's my look for what its worth. ;-)
I have been following AGC, S-meter, and threshold/slope values since the
beginning - K2 #272 over two years ago.
Until recently, I have found that K3 sensitivity varied between serial numbers
and that could not be changed. I suspect this value was not mea
I have seen several posts lately about charging the K2 internal battery. I
modified my K2 to use one of the top-cover transverter jacks for a charge
port--these wires go directly to the K2 battery through an inline fuse. Others
have posted pictures on their websites on how to do this. What I
Please email about any Elecraft options for K2. 100 w lid PA, ATU/100,
I/O, NB, SSB, Audio Fltr or DSP ... Etc...
Dave Little, AF5U
214.384.5171 iPhone
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help
Dear Gang:
I am using my K3/XV-144 to drive a cantankerous, shock-hazard Henry 2002A
amplifier on 2m. In its current state, the 2002A can take only 11 watts
drive. To get this out of the XV-144, I have to set the K3 to XV1 PWR L.06
At this power level (.06 mw) the PWR knob on the K3 will no
This evening I was working 40 meter CW using a 500 KHz filter and had pushed
the NR button to help out hearing a station, after about 10 seconds I heard
the dreadful screech. The NR was set for F2--4. This is the only time that I
after heard it. I was using ear phones but luckily I only wear them
Earl,
There is a Mark/Shift and Pitch Selection - See the manual page 31.
Set to your data mode (I assume AFSK or FSK-D), then hold the PITCH
button - rotate the VFO A knob to tell the K3 what mark frequency and
shift that you are using. If you are using a computer application, the
mark freque
Found it!! The Mark/Space on the Pitch setting was wrong. Was set to
1275/170 instead of 2125/170.
Still new to the radio and had forgot about that setting..
All is OK now..
Earl N5ZM..
-
Earl wrote:
> I just received my K3 S/N 3223 (FW 3.30/DSP 2.26) back from Aptos and
> I n
I just received my K3 S/N 3223 (FW 3.30/DSP 2.26) back from Aptos and
I now seem to have a problem with the Shift FC not correct for
DATA/FSK-D mode. Crystal Filters:2.7-5Pole, 1.8-8 Pole and 250-8 pole.
The center star is at *1.36 and it needs to be at *2.21.
When I narrow the BW the signal dis
Jim,
There are 2 reasons I can think of to make that condition 'normal'.
First is if you have the preamp on for a band where it is not needed -
that would amplify the atmospheric noise when the receiver has no signal
present and no AGC is active. If your preamp is on, try tuning it off
and see
I would say that it's just fine Wayne! Good on you!
> From: n...@elecraft.com
> To: i...@baguano.hlg.sld.cu
> Date: Sun, 4 Oct 2009 12:48:17 -0700
> CC: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Hola a todos
>
> Edgar Iniesta wrote:
>
> > Hola ando buscando un transceptor para la ban
Don,
I did not say nor hopefully imply that my "procedure" was intended to be
scientific. I was simply doing a layman's side-by-side comparison. Obviously,
my K3 has a higher noise level than my other four radio's and it is represented
on the S-meter. QSO's that are something like S7 and a
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: htt
Hi Toni
I would check if there is any arcing on the directional coupler toroids. I had
a similar problem which caused arcing, spurious products and IMD.
I would also check your connectors in your TX chain. Its amazing what havoc one
loose connector can cause with high power.
I would also chec
The California QSO Party was providing lots of QRM around our regular
frequency today. I opened on 14.314 MHz, but quickly announced a QSY to
14.317, which was quieter but still noisy. Anyway, there were 10 of us on
14.317. We ran for 8 minutes there. Afetr we concluded, I went down to
14.314 a
Edgar Iniesta wrote:
> Hola ando buscando un transceptor para la banda de 160 metros,
> ¿quien me
> puede ayudar?, les estaré muy agradecido ya que soy nuevo en la
> radioafición. Por favor contactar conmigo por esta vía...
Hola Edgardo,
Hay muchos transmisores-receptores que trabajarán en 16
Edgar,
About all I got from that was hello (hola), you are new to amateur radio (un
radioaficion nuevo), and good-bye (saludos). Anyway, welcome (bienvenidos)
to the hobby. I just hope your english is better than most of our spanish!
Adios!
Dave W7AQK
- Original Message -
From: "E
Hola ando buscando un transceptor para la banda de 160 metros, ¿quien me
puede ayudar?, les estaré muy agradecido ya que soy nuevo en la
radioafición. Por favor contactar conmigo por esta vía,
Saludos,
Edgar
--
This message has been scanned for viruses and
dangerous content by MailScanner,
Steve,
The KXPD1 can be very sensitive. The action will feel stiff if you are
in the habit of applying pressure to the paddles with your thumb and
finger well up onto the cover pads. If you make contact near the outer
ends of the finger pads, the action can be very sensitive. The outward
cu
Julian,
He was asking about the K2 - not the K3.
73,
Don W3FPR
Julian, G4ILO wrote:
>
> Bill-11 wrote:
>
>> The manual covers the procedure very well. You can find a downloadable
>> version and then use the PDF viewer for search within. Good luck!
>>
>>
> I think John may have been loo
Hi John,
I too found the K2 TX audio too bassy. If you look here you will find a
modification
to capacitor value in the KSB2 which helps lighten things up.
http://homepages.nildram.co.uk/~baker/K2_SSB_Mods_Overview.html
73
Stewart G3RXQ
On Sun, 4 Oct 2009 09:14:12 -0700 (PDT), john wrote:
> Hi
How is your SSB FL1 filter passband aligned? The position of the
passband will make a big difference in how the K2 sounds on the air.
The procedure in the manual will get the filters close, but may not be
optimum for your K2.
For best results use Spectrogram and position the passband between
ma
Bill-11 wrote:
>
> The manual covers the procedure very well. You can find a downloadable
> version and then use the PDF viewer for search within. Good luck!
>
I think John may have been looking for some suggested settings to try. Heil
actually has some recommendations on its website for som
AD6XY wrote:
>
>
> I did some 2-tone tests to see if it could be that, they are in the
> following 4 pictures but again, there is nothing wrong and indeed the
> results are rather good for a 12V PA. It is interesting the K3 is cleaner
> close in at 50W than at 10W. That is because of the bypas
The manual covers the procedure very well. You can find a downloadable
version and then use the PDF viewer for search within. Good luck!
73,
Bill
K9YEQ
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of john
Sent: Sunday, O
I can find +/- 6.33 kHz on my K3 on 20m, but it's down in excess of 100 db.
That's listening with an antenna-less K2, the main signal showing 10 over 9,
and the "spurs" below standard MDS, just barely detectable as a tone by ear
in the RX noise with a narrow CW bandwidth.
Are you using the interna
Just to demonstrate that the K3 TX spectrum is excellent, I have uploaded
some plots to flickr
starting at
http://www:.flickr.com/photos/ad6xy/3980006295/
with the ones between up to
http://www.flickr.com/photos/ad6xy/3980007573/
showing the close in spectrum at 100W output on 14.2 MHz for a
Ahhh ... I didn't think of that. Thanks for the clarification!
73,
Dave AB7E
m.j.wil...@rl.ac.uk wrote:
> I think he means the K3 amp issue - the amp in the K3.
>
>
>
>
> I don't understand ... if you used two different K3's and the same amp
> (I assume for both K3's), how does that remo
I believe by "amp" we are talking about disabling the KPA3 in the CONFIG
menu by putting it in bypass to see if the spur is related to the K3's
internal AMP, not an external amp.
Steve
N4LQ
n...@carolina.rr.com
- Original Message -
From: "David Gilbert"
To: "Toni Lindén"
Cc:
Sent: Sun
Hi All,
I wonder if I made an assembly error when putting together my KXPD1 paddle.
Its action is very stiff. I need to hold the radio to be able to apply
enough pressure to make the dots and dashes. If you look at this SQ5M video
that I found on YouTube the action is very light.
http://tinyurl.c
Hi everyone, can someone direct me to a set of instructions that is step by
step to setting up the tx audio on the K2? The one I have here is TOO bassy
with the Hiel hand mic and after reading and confusing myself so many times the
manual, just was to be able to adjust the audio for just a few m
I don't understand ... if you used two different K3's and the same amp
(I assume for both K3's), how does that remove the amp as a possible
cause of the spurs? I don't think you narrow anything down to the K3
until you check the results into a dummy load. If you have two K3's,
transmit into
I had a similar problem on receive for a while - also transmit. It turned out
to be a fault in the VCO. I found it using my spectrum analyser. If you
don't have one consider getting one. A panadapter will also show it. Hunting
around with another rig is not as good a method but should also work i
I've just run my K3 at 70 Watts into a 50 Ohm load, 14.020 MHz. Results
were spurs at +/- 11.9 KHz which are between 103 and 106 dB down. The
noise at 7 KHz out from the carrier is 106 dB down, even at 50 WPM
keying (internal keyer). There was a spur 263 KHz up which was 98 dB down.
On 21 MHz ther
Toni Lindén wrote:
>
> I was using SO2R with pair of K3s' and had similar reports with both
> radios, so I guess it's not the amp issue. The bands where I got
> reports were 20M and 15M (on 10M were no propagation and maybe 40M and
> 80M were too noisy to notice the 2nd sigs).
>
> All antennas
G'day,
Just checked here. At 14020kHz and 14120kHz the spur remained
approx 6.33kHz away.
Regards,
Mike VP8NO
- Original Message -
From: "Geoffrey Mackenzie-Kennedy"
To: "Toni Lindén"
Cc: "Elecraft Discussion List"
Sent: Sunday, October 04, 2009 11:25 AM
Subject: Re: [Elecraft] K3
Dave G4AON wrote:
>
> The K3 is sensitive enough on the lower bands to not need the pre-amp,
> which of course would give rise to higher noise levels.
>
But surely the preamp won't make the receiver noisier. It will only make the
noise sound louder. But if you are listening to a signal then sw
I have noticed this on my K3 also. Compared to my FT-1000D
it´s much noisier. As far as I understand the MDS of the
K3 is around 134 dBm, I have measured my FT-1000D to about
141 dBm I think it was. My feeling is that something isn´t
right with the K3 but I simply haven´t had time to persue
it.
/
Toni,
Yes you had it on 40m too. Actually on 40m the spur came right
on my frequency and due to that I did notice it. I was going
to let you know but forgot about it.
73 Jim SM2EKM
---
Toni Lindén wrote:
> I was using SO2R with pair of K3s' and had similar reports with both
>
Radio Amateur N5GE wrote:
>
> As I said before, it sounds to me like your K3 has a better RX than
> your other two radios.
>
Or at least the S meter is more sensitive. According to the manual, the K3
S meter should display S3 with 1uV of input. With most radios, the S meter
runs off the AGC s
Toni,
Do I understand correctly that the transmitter spur is always about 7 kHz
away from your actual frequency, regardless of what your actual frequency
might be? Or does the spacing change when you change the actual frequency by
say 10 kHz?
73,
Geoff
GM4ESD
Toni Lindén wrote:
> Hi!
>
> I
G'day,
For what it is worth.
Just done a quick test with my K3/K2 combo.
K3 14020kHz. 50W into my beam.
K2 with no antenna connected receives a signal at S9+20 on the
S-meter. Keying at 14013.67kHz and 14026.38kHz was heard.
Additionally I heard signals at 14007.24kHz and 14000.99kHz, didn'
I have a feeling something may have changed in later K3 firmware,
possibly as a result of calibrating the receiver gain via the K3
Utility. Previously I have been able to calibrate the S-Meter from
around S6 to S9 +60 and have it almost perfect, now it doesn't seem to
be possible to get it that goo
I was using SO2R with pair of K3s' and had similar reports with both
radios, so I guess it's not the amp issue. The bands where I got
reports were 20M and 15M (on 10M were no propagation and maybe 40M and
80M were too noisy to notice the 2nd sigs).
All antennas are OK and no difference was noted w
Tke the amp out of the equation and see if you still have the issue. Try a
different antenna and check the SWR. I would suspect one of those to be the
issue. At least it will eliminate some variables.
Dan AB3EN
Toni Lindén wrote:
>
> Hi!
>
> I was trying K3 for first time in SAC contest a co
I found out similar behavior with K3 while testing it for the first
time in SAC contest.
I was sure that the noise was some kind of power line noise or
similar. After the contest I disconnected *all* electrical devices but
noise was still there. Changed to FT1000 Mark V and the band was quiet
whil
Hi!
I was trying K3 for first time in SAC contest a couple of weeks ago.
During the contest I got multiple reports that besides of my run
frequency, I also had other reasonable strong signals "around the
band".
It cleared out that I had at least one other signal about 7kHz away
from my actual fr
Jim HaRRIS wrote:
>
>
> All four are equally quiet without an antenna connected and with a dummy
> load connected. When connected to an antenna the K3 has about 2 S units
> more noise indicated than the other radios connected to the same antenna
> (A/B switch) and the noise level sounds about
47 matches
Mail list logo
