Re: [wsjtgroup] LOTW now supports ISCAT, JT4, JT6M and WSPR
- Early in the development of WSPR there were requests for a "WSPR QSO
mode". Such a mode was introduced, experimentally, in WSJT version 7.
The WSPR QSO mode never became popular. Most people found that the
message structure was too restrictive (required by the very small 50-bit
message payload) and that minimal QSOs with two-minute transmissions
take too long.
The WSPR QSO mode is not included in WSJT 9, and will not be supported
in the future. WSPR is now (as it was when created) a mode for probing
When people send me QSLs for having received my WSPR signal, I am
careful to return a QSL thanking them for their SWL report. I do not
consider such "contacts" to be QSOs, even if signals were received in
both directions during a short time span.
-- 73, Joe, K1JT