Re: [amsat-bb] MFSK-16 on AO-40

[Emily Clarke <emily@xxxxxxxxxxxxxxx>]

MixW allows you to "lock" your transmit frequency and then snap your 
receive frequency on a signal (so technically you can be full duplex) so 
that seems to work.  The problem I've had on PSK-31 is the AFC isn't quick 
enough to hold on to the PSK signal and requires constant adjustment.  This 
probably isn't a problem if your transceiver is computer controlled, but if 
you are manual like I am, you have to constantly click and adjust.

73,

Emily



At 10:55 PM 10/8/2003 -0700, Greg D. wrote:

>I've thought about trying the narrow band digital modes on AO-40 (PSK-31 
>in my case), but I couldn't figure out how I'd ever get my Tx and Rx 
>aligned, especially when you're thinking about working someone you can 
>hardly hear.
>The only way I can think of is to move off slightly and zero-beat my 
>transmit and receive to each other, then slide over and hope things are 
>still lined up close enough.  But, we're talking Hertz here, and my 
>receiver tunes in 100hz increments, and the transmitter in 10hz (they're 
>separate rigs).
>
>Those of you who've done this, how'd you do it?
>
>Thanks,
>
>Greg  KO6TH
>
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