2 Sept 2022

4m TX fault

Yesterday, I tried my 4m QRP transverter on TX with the FT817ND. It said "HI SWR" on the FT817ND. Not sure what was going on, but it is probably something simple, like a dry joint. 

I was very pleased with the results yesterday on 4m FT8 RX with just the 40 MHz antenna.

If the fault really is trivial, I am undecided about the erection of a 4m halo. Such an antenna would give me access to 4m.

2 comments:

Anonymous said...

Roger,

The "HI SWR" you got from the FT817ND when using your transverter could this be down to there being no 5v on your FT-817ND connector and maybe you modified your orginial FT817 to provide 5v on the either BNC or SO-239 antenna?? Looking at you circuit diagram you marked RF + 5v ??

Just a thought?

Jason
M0NYW

Roger G3XBM said...

Yes, you could well be right!!