I am using Ham Scope and Mmtty to decode RTTY with my sound card. It
works fine for hame radio operators but I have found RTTY on non-ham
frquencies and all I get is garbage. For example, there is an RTTY
signal at approximately 2.042 MHZ at 1100 UTC on the West Coast and
all that displays is random characters. I suspect it has something to
do with the protocol or baud rate settings. Anyone know what they
might be? Not sure if this is maritime station or not. Thanks.

"B.R. Smith" wrote:

I am using Ham Scope and Mmtty to decode RTTY with my sound card. It
works fine for hame radio operators but I have found RTTY on non-ham
frquencies and all I get is garbage. For example, there is an RTTY
signal at approximately 2.042 MHZ at 1100 UTC on the West Coast and
all that displays is random characters. I suspect it has something to
do with the protocol or baud rate settings. Anyone know what they
might be? Not sure if this is maritime station or not. Thanks.

Much of the RTTY that you'll receive on non HAM frequencies will be encrypted.
That is probably why you'll receive the random characters even though you might
have the protocol and baud settings correct.

dxAce
Michigan
USA

Most hams are received in the LSB mode. Comercial statisons usually are
received in the USB mode or the reversed mark/space relationship. Also the
speed (baud rate) and shift are usually differant than the normal ham 45
baud (60 wpm) and 170 Hz shift.



"B.R. Smith" wrote in message
...
I am using Ham Scope and Mmtty to decode RTTY with my sound card. It
works fine for hame radio operators but I have found RTTY on non-ham
frquencies and all I get is garbage. For example, there is an RTTY
signal at approximately 2.042 MHZ at 1100 UTC on the West Coast and
all that displays is random characters. I suspect it has something to
do with the protocol or baud rate settings. Anyone know what they
might be? Not sure if this is maritime station or not. Thanks.