I just wrote ditsnbits about this.
We have been getting ready to play in the ARRL RTTY Roundup this
weekend with Orion2's, using FSK.
We have seen several times the situation where the software (and we
have tried many programs although they all use MMTTTY as an engine)
thinks it is triggering transmit, rx audio is muted on the O2 (like
its transmitting) but it is not actually transmitting anything (no
swr indication on the screen, no power deflection on the s meter, no
sound coming from the monitor, etc.) We have found that if you just
press the tune button and let it tune for few seconds and then
everything works perfectly.
We have seen it 5 or 6 times and spent a lot of time debugging comm
ports, interface boxes, etc. but its a strangeness of the O2.
Just wanted to let you know in case you want to join us this weekend!
Neal
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