Hi Mario,
For L band uplink I use an SSB Electronics UTM 1200DLX. It generates about 15 watts out for 5 watts in. It has a 144MHz input. If I am working mode L/S, I will use my FT-817 for the mode L input, the 5 watts (about 3 to the UTM 1200 on the roof) works fine. That leaves the FT-736 for the 144 MHz IF for the S band downlink. Mode L/U would allow the use of just the FT-736, 144MHz for the UTM 1200 and then receive on the 70cm side.
73, Jerry N0JY
IK1ZQJ Mario wrote:
Hello Domenico I8CVS Tnx for your suggest very appreciated. Yes I agree with you, the transverter needs to have a stable oscillator to work (ocxo, tcxo) and a pa is needed today done also with the semiconductor like module or mosfet. On this last issue I have many project available in my lab. Coming back to the transverter, do you think that the IF in VHF is suitable also when I'm working in mode L/S where the Smode is done through a down converter 2400/144MHz? Sure, have a radio with a third band solve all the problems, probably IC910 newer or the glorius 790. I'm scratching the head to take a decision..
73 Mario IK1ZQJ
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