In reply to GM0AXY:
When I got to the summit Saku (OH2NOS) was already at full speed. I started setting my double to the trees while he was handling the CW QSOs with his ft817 with louadpeaker on so I could listen to the QSOs.
I decided to try to qualify the summit only with JT9 (the four QSO requirement). I had a loads of trouble with my USB connector that I found to be broken and the cable was loose between the Flex 1500 radio and the computer. I had to reboot the PC several times.
There was not that much action on JT9, but after several dozen CQs I finally got the needed four contacts, qualifying the summit
Here is one happy camper after the fourth QSO. (picture taken by Saku, thanks)
I was sending standard CQ and after that a message "SOTA OHJS066".
Instead of sending RRR I sent "SOTA OHJS066".
I think it is very pssible to achieve one qso/two minutes rate with indirect ack. That also requires running split, which is easy with JT9. you just need to unclick the RX=TX and from the bandscope you can pic a clear QRG for your transmission.
In this way the activator can receive several replies and decode them all. Then.. from the decodes activator can just send the S/N report and wait for the chaser one to ack that. If activator does NOT come back to the chaser one and picks a new one (chaser two) the chaser one can be sure that his ack was received successfully and the QSO is complete.
With standard JT9 this is the fastest possible way to make contacts and a reasonable qso rate can be achieved.
Just my thoughts on the "SOTA JT9 protocol". BTW this is more or less standard practice already in JT9 when the regular contacts send quick reports on the band conditions..
Thanks again! it was a fun challenge.