Jon KM8V
That could certainly be it.. I've just never seen it so prevalent as it was today.
toggle quoted message
Show quoted text
On Sun, Jun 5, 2022 at 10:07 AM, Charles Suckling wrote:
Hi Jon
Maybe this (copied from User Guide):
For operation at 144 MHz or above you may find it helpful to use
short-format *Sh* messages for Tx3, Tx4, and Tx5. These messages are 20 ms
long, compared with 72 ms for full-length MSK144 messages. Their
information content is a 12-bit hash of the two callsigns, rather than the
callsigns themselves, plus a 4-bit numerical report, acknowledgment (RRR),
or sign-off (73). Only the intended recipient can decode short-messages.
They will be displayed with the callsigns enclosed in <> angle brackets, as
in the following model QSO
73
Charlie DL3WDG