[Elecraft] K3 additions

[Bill Frantz]

I have a 250 Hz filter I use for PSK31. It seems to improve 
reception with the normal numbers of signals on 20 meters. I 
does wonders with nearby strong signals.

I am using the computer as a pan adapter, so I have to narrow 
the bandwidth around the desired signal manually. (I have a K3 
button assigned to opening the bandwidth up again at the end of 
a QSO.) When my P3 arrives (RSN I hope), I plan to try to use it 
as the pan adapter, tune with the K3, and just have the computer 
do fine tuning and QSO recording.

Regarding the digital modes: I see PSK31 as a rag chewing mode. 
Transmission speed is about the same as typing speed from a good 
typist. It is easy to demodulate the 31 Hz bandwidth signal if 
there is a 31 Hz guard band on either side, making is a good 
neighbor on crowded bands. I also see some PSK61, which is twice 
as fast and good for the macro driven "599 73 OM QRZ?" type of 
contacts. The WSJT modes can get a signal through when the noise 
floor is higher than the signal.

While I'm not a CW operator, I'm working in that direction. 
Narrow bandwidth and no computer are compelling characteristics.

Cheers - Bill, AE6JV

On 11/1/12 at 10:31 AM, mzilmer at magellangps.com (Matthew Zilmer) wrote:

>If you're really into CW, you might consider one of the tighter 
>roofing filters (250, 400, 500 Hz).  Generally the data modes 
>use small passbands too.

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