The commercial CW operators used a 1-5 scale too: QSA1 to QSA5. It's much
more practical than trying to read or guess the nine steps of "S" units, yet
plenty accurate enough to clearly tell the other station how good his/her
signal is coming in.
It's fun to watch an S-meter wave back and forth (I
Don,
Thanks for the explanation. I too use the method you describe such as "S-9 -
armchair copy" but the interaction with the RF-gain had me looking all over
the manual trying to figure out why the S Meter calibration didn't work.
Dan
Don Wilhelm-4 wrote:
>
> Holding my tongue firmly in my ch
Don Wilhelm-4 wrote:
>
> If you are doing weak signal work or working on a crowded band, I
> suggest you opt for the maximum dynamic range by reducing the RF Gain
> (and advance the AF Gain) so you can just barely hear the band noise.
> But if your current operation is more casual, run the
Holding my tongue firmly in my cheek, I suggest that we can give
'proper' S reports without an S-meter at all.
S-3 - I can barely hear you
S-5 - You have a weak, but copyable signal
S-7 - Good copy, but not the strongest signal
S-9 - armchair copy
S-9+ - you are really booming in here.
For contes
Dan,
That behavior is common for many receivers - the K2 and K3 included.
Admittedly, a few do it differently and the RF Gain will reduce the
S-meter reading rather than sliding the scale upward.
The reason is that the RF Gain works in 'parallel' with the AGC. In
other words, the developed AG
Don,
I notice that if I have the RF gain less than full CW the S Meter bars are
progressively lit and it looks like the noise level has increased when it
has not. The latest beta is a work of art and should make folks happy but
the S Meter / RF gain interaction puzzles me. Out of habit I do not
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
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.
/
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 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
Jim,
If it's an issue with the S-meter, it may well be corrected by the
corrected RF GAIN calibration procedure due out in the next beta
release. I can send it to you to try.
Generally if you connect an antenna to three radios and one of them
sounds louder, it means that radio has more gain
On Thu, 24 Sep 2009 15:18:33 +, Jim Harris wrote:
>
>Hi All,
>
>I've had my new K3 up and running for about a week after replacing the DSP
>board during assembly due to the 5vdc rail being shorted to ground. The
>S-meter shows about S-2/3 noise and there is about an equal level of noise
>
they have been working on a provision in the utility program that
will achieve the same effect, using only the firmware. Gotta love SDR. It's in
the release notes but not quite ready AFAIK.
[Elecraft] K3 S-Meter and Noise
Jim Harris w0em at q.com
Thu Sep 24 11:18:33 EDT 2009
Previo
Hi All,
I've had my new K3 up and running for about a week after replacing the DSP
board during assembly due to the 5vdc rail being shorted to ground. The
S-meter shows about S-2/3 noise and there is about an equal level of noise from
the speaker. I have an IC-756ProIII sitting beside it and
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