jhaynesatalumni wrote: > --- In digitalradio@yahoogroups.com, "Simon Brown" <[EMAIL PROTECTED]> > wrote: >> What are the common RTTY configurations? I ask because I am in the > middle of porting / rewriting the fldigi RTTY code but have never used > RTTY myself. I'm thinking about combinations of baud / shift / bits / > <whatever>. >> Simon Brown, HB9DRV >> > Well of course 170 Hz shift and 45.45 baud is the most common and about > the only thing you'll ever hear on the ham bands. And there is hardly > enough RTTY outside the ham bands to bother with anymore. There is some > 75 baud weather type traffic I guess, and they may use 850 or 425 shift. > Then a military standard is/was 85 Hz shift, and I've been wanting to > try this on the ham bands but haven't found anybody to sked with so far. > There was a net for military radio collectors that was using 850 Hz and > 45.45 baud. 50 baud used to be popular in Europe (standard speed for > Telex machines) but I get the impression that has died out for ham use. > Then there is the PK-232 that uses 200 Hz shift because it has only one > narrow shift and that is their compromise between 170 Hz for RTTY and > 200 for Pactor/Amtor. So you might want to make a shift of > 185 or so to allow copy of both sides of a QSO where one is using > 170 Hz and the other is using 200. And 200 so optimum performance > when talking to a PK-232. > > There's also Minimum Shift Keying where the shift is equal to the > baud rate (or is it half the baud rate) but I've never encountered > it on the air.
Does anyone run 100wpm ASCII RTY anymore?
