[Elecraft] The ins and outs of PSK on the K3?

[Adrian]

On 27/06/2012 0:36, tomb18 wrote:
> I have been running PSK for a couple of months now on the K3 and am wondering
> if I am using it in the best way.
> I am using DM780 that comes with Ham Radio Deluxe and I usually set the K3
> in USB and pick the stations from the waterfall. I also have a P3. Up until
> now, I have been using the 2.8 KHz filter setting and have had AGC on.
I have used like this, but with agc always off and filter from wide to 
narrow settings depending on usage, i.e. dxpedition narrow on qrg etc.# 
Indicated waterfall audio freq is added to vfo freq to spot, i.e.14070 & 
1500hz for 14071.5 etc.
>   It
> always seemed that there were two flaws in this:  One was that it was not
> easy to pick the actual signal using the P3 markers, you always were using
> the USB lower frequency point that was some number of hz away from the
> signal.

> The second was how do you get an actual frequency for the signal
> instead of just 14.070 (20M)? see # above
Sometimes you can see stations spotted at 14.072 but finding it was 
always a search of spots one by one. Today I played around a bit. For 
one, I used the manual notch filter to remove a really strong signal. I 
turned of AGC. This works well. I also set the radio in DATA mode 
instead of USB. The nice thing about this, is that I can use the P3 with 
a +/- 2 KHz span, and see all of the signals in the usual PSK range, but 
now I can click on one I see, and it will actually center it in the 
passband and give me a frequency readout that seems better than the 
standard 14.070 for 20m. Furthermore, I can use a narrower filter and 
the reception seems much better and the decoding more accurate. So my 
question is, is my new found way of using the K3 a better way and 
possibly the best? Thanks for any insight. Tom VA2FSQ -- View this 
message in context: 
http://elecraft.365791.n2.nabble.com/The-ins-and-outs-of-PSK-on-the-K3-tp7558230.html 
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