[RTTY] FT1000D FSK

[Ronald A. Stunden]

Thanks to all that answered, It boils down to this the 1000D  and the 
MP Mark 5 series are totally different, The D has a built in AFSK osc 
which is keyed from the RTTY plug on the radio. and is set up using 
the ALC, I have found that about 9-10 position on the ALC scale is 
about right. Listening to the signal on the FT990, The audio tends to 
get a bit distorted at a higher level. Page 34 of the manual explains 
the operation and setup. The  MP and Mark 5 are pure (if you will ) 
FSK keying. as I understand it. As far as I can remember the FT990 is 
also FSK. I am using the PK232 FSK output for keying and it works 
fine on either radio... MMTTY now has an add on for FSK using MMTTY 
which works as well.. The radio is run in RTTY/LSB....
I hope this explains it... Cheers Ron