One problem with higher data rate on RTTY.
75 RTTY seems to have twice the errors as standard RTTY.
That would equate to MANY more repeats.
PSK 63 or 125 would be OK because of the built in error correction.
Personally, I enjoy RTTY and believe it is the best for DXPeditions.
The problem with DXPeditions using RTTY is the CALLERS.
In SOOOO MANY cases they DO NOT KNOW WHAT THEY ARE DOING.
No idea what "split" means.
No idea that they should SHUT UP when the DX is answering someone.
NO IDEA that they CAN spread out.
No idea that it is NOT NECESSARY to call them thusly:
DXPed DXPed DXPed de KB3LIX KB3LIX pse K
a) they already KNOW their callsign
b) lose the de, they KNOW that by sending your call, that is who U are.
c) Lose the pse K, that is assumed.
Send you call once or twice and SHUT UP to see if he answers YOU.
If he answers someone else, SHUT UP until his Q is COMPLETE.
NONE of this constant calling S***.
If he doesn't answer ANYONE, send your call again
and SHUT UP and LISTEN.
A little of courtesy goes a LONG WAY.
IF all ops would LISTEN more and TRANSMIT LESS,
Q's wpuld come and go faster.
EXACTLY! I can't believe the way some operators try to contact DX in pileups. Having heard idiots transmit their call on SSB for more than 6 times in a row while others send the stereo-typical newbie (or unknowing new digital mode op) string of 3 by 3 calls over and over again, never appearing to listen for a response. You name it and on most DX pileups you'll hear it. I heard some dork sending 'diddles' on RTTY on TT8TT last night for over 45 seconds at a time, repeatedly. Not sure if it was a jammer or just someone who doesn't know how to control their equipment
I realize that sometimes it is taught by many 'club classes' that the PROPER format to call someone on ham radio is send their call 2 or 3 times followed by "THIS IS" or "DE" and then your call 2 or 3 times. The problem is many of these classes do NOT add that in pileups, this will USUALLY only gain the 'offending' operator a bunch of grief. In our club's General Class syllabus, I have added a short session on 'Intro to DXing for the New General Licensee' describing how to work a typical DX pileup and some of the DO's and DONT's of working DX. I have recorded some very good operators and some very bad operators to illustrate the differences. I also assembled a CD containing copies of many open source DXing how-to / techniques papers (in PDF format) garnered from the internet covering various DX operating topics to help the newbie DXer get started in the right direction plus lots of operating aids for the budding DXer.
I know I'm 'preaching to the choir', but it can't emphasized enough that in order to be a successful DXer, one must first learn to LISTEN correctly.
Listen to hear the DX station - if you can't hear them, don't try to work them.
Listen to the pileup - find open spaces to call when you're ready
Listen to learn the timing of the DX station - is he answering early callers, late callers, areas, loud stations first, moving over wide split, you name it!
Listen to your transmitted signal - is it top quality or is there a problem?
Listen for partials - did the DX get just your suffix - is he asking for a repeat?
Do not transmit if the recognized call is not even close to your call - if I call with W5DQ and the reply is for station ending in "Foxtrot", I need not answer
Do transmit where you have the best chance of being heard - if there is reply pileup 2kHz up from DX sending freq on CW, try moving up 500Hz to the edge of the mini-pileup
Do not transmit your call when the DX is transmitting - he's not going to hear you (see above about timing)
Do not transmit your call repeatedly - just going to piss of the pileup and/or the DX
Do transmit your FULL call
And probably one of the biggest problem area for newbies ..... LEARNING TO USE SPLIT EFFECTIVELY
These are just some of the stuff I cover in the 'Intro to DX' session. I hope it helps turn our new ops into better DXers.