[Elecraft] SSTV and the K2

Julian, G4ILO g4ilo at qsl.net
Sat Sep 18 05:59:52 EDT 2004


Could be the stock K2 SSB filters are a bit narrow for SSTV. Also, you 
need a fair bit more power for SSTV than you do for PSK. I tried SSTV 
without success either because I'm using QRP. I could receive OK, though.

If you're using MixW then you can send images using the MFSK mode. I had 
quite a bit of success with that at 4 - 5W - results comparable to SSTV 
at 30 - 40W output, though the images are a bit smaller and take a 
little longer.
-- 
Julian, G4ILO (RSGB, ARRL)
G4ILO's Shack: http://www.tech-pro.net/g4ilo

"W3FPR - Don Wilhelm" wrote:

Tom,

Based on a guess that the high frequency roll-off built into the 
headphone jack may be causing you a problem, you may want to try the 
external speaker jack instead.

If you have success with the external speaker jack, yet want audio that 
is independent of the AF gain control, you may want to install my K2 
Fixed Audio boards (see my webpage www.qsl.net/w3fpr for more info) - I 
have 11 of the full kits remaining ($15 1st class mail, $17.50 USPS 
Priority mail) and LOTS of boards ($5 1st class mail).

73,
Don W3FPR


----- Original Message -----

     I've been trying my hand at SSTV with my K2 and so far haven't been 
too successful. I'm using the MMSSTV software and haven't been able to 
receive a picture.

     I've been using the headphone jack connected to my computer's sound 
card but I'm only getting a bunch of 'snow' on the screen. Is there a 
better place to pick up the audio. I realize, of course, that the 
headphone jack is connected to the AF control.

     I use this same configuration for PSK31 and am able to receive 
quite well.



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