[NLRS] PSK 2m ... freq

[Dan Larson]

On Sun, 30 Sep 2007 11:31:03 -0500, KA0RXX wrote:

>
>
>Sorry I have sort of disappeared from this thread for the past couple 
>days.   Life and employment intruded again :)
>
>Thanks so much to all of you for your notes and input.  Seems like there 
>are a least a few of us that want to experiment with this mode.
>
>Carl WA0CQG is vacationing and sent me another chart, which seems to 
>take into account all of the comments made on the subject.  The 
>reflector won't accept html, so I am transcribing his latest effort here.
>


Not necessarily related to the actual frequencies used, but....

I have tried PSk-31, in the past, on 2m from Brainerd to Hastings.
It does work well for long distance, but is subject to lots of phase
distortion. There *will* be some lost characters.

I have even seen the doppler image of the track from a plane flying 
over... is very strange to see on the water fall... but as you all know,
multipath, scatter, knife edge are all problems that will complicate
the VHF signals at such large distances...

2m PSK-31 is a bit less robust than it is on HF, but still is much better than
trying to pull a very weak voice out of the noise.

Sadly, I have no antennas up at this time due to recent roof work, so I can't 
get on the air except for 2m mobile right now.

Dan 
KC0LUY