My Receiver is Opticum / Orton 4100c
I'm trying to upgrade my receiver firmware.
The receiver has rs232 9 pin male connection.
My desktop computer has 25 pin serial female connection.
So I bought null modem rs232 cable one end female 9pin, the other 25 pin male.
But as hard as I try to follow instructions. It just doesn't connect. I use attached software and I use windows vista.
When I select firmware and press next, it says "wait for serial connection" and then nothing happens. I tried to connect and disconnect the receiver, on, standby, off modes. but had no luck.
So my question is what is wrong with my setup?
Any help would be appreciated! :)