I broadcast on VHF – 145,500 to 145,550 and I also called on the "R" (King's Club). Power 6W, station ICOM IC T2H. A lot of connections were made, not only with OM but also with OK stations, but unfortunately there was no "space" to write them down, so I don't even know exactly how many there were and specifically with whom.
I would ask, if it is possible, that they publish the call, who had contact with me that day to send me an email (om7aqa@gmail.com), or if they could write it somewhere on the page CQ.sk and I would read it there.
Originally, I had intended to broadcast on KV (3750 + - QRM), but the balloon was fully occupied and there was practically no handling space, as well as the fact that I would "disrupt" the peaceful flight with my broadcast and thus make it impossible for other passengers to enjoy it.
I've been toying with this idea for a long time and there was already one attempt, but somehow it didn't work out. I heard - I was not heard... (4W PWR, ant. vertical DIPOL 2x 19.6m suspended on a balloon). I have changed the antenna to a zeppelin powered by coax through an adapter cell (OM7TX cell design) and I am just waiting for the right weather to try it out. I will then give the challenge to 3.756 MHz, with the fact that I expect the next operation to be somewhere around 3.750. But I don't know when it will be, because even though the weather may seem great, it may not be suitable for a balloon flight, and the pilot can cancel the flight at almost any time. So I won't promise a certain time when it will be, only that it may be mentioned somewhere that such an event is coming. Flights are scheduled for about an hour after sunrise, or in the evening about an hour and a half before sunset. I expect the broadcast time to be about 20 minutes. I hope I can do it (at least once)...
The photo from the balloon was taken by OM7AGI (Igor), for which I thank him.
Best regards
73! OM7AQA