I'm finally working on the PTT T/R circuit for my homebrew DSB /Direct conversion 30 meter transceiver. I hope to use the simple one transistor circuit from W3PM's FB HB WSPR rig.
But I need info on the PTT signal that will come from the computer serial port. Which pins on the 9 pin serial port connector? What kind of signal comes out? Is it 5 volts on transmit? What settings should I use in WSPR? RTS? Any other setting changes needed?
I hope to be transmitting AND receiving soon.
May 5, 2024. Happy Cinco de Mayo! Contests and Operating.
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That is what this hobby is all about. Simply stated: Contests and Operating
which I had a chance to do yesterday.
What fun it was to operate in the 7 Call ...
24 minutes ago