I have the standard tr usdx 80/60/40/30/20.
I would like to tune each band but I am not sure which relay/coil set operates which band.
Is there a picture or detail that shows which is which?
From the rf tuning video I believe I have identified 80 and 20. I have no idea which are the other bands.
Any guidance is greatly appreciated. Thank you.
Which relay/coils are for which band???
-
- Posts: 207
- Joined: 01 Jan 2022, 03:47
Re: Which relay/coils are for which band???
Dl2man.de->assembly->rf schematic
Relays
K1->20m
K2->30m
K3->40m
K4->60m
K5->80m
When you find where they are on the board you might want to write "20" on top of the K1 relay etc.
It's easy to get disoriented and confused about which one is which.
(how I know: more than once I have tried to tweek the power and efficiency of a coil that was not for the right band.)
Relays
K1->20m
K2->30m
K3->40m
K4->60m
K5->80m
When you find where they are on the board you might want to write "20" on top of the K1 relay etc.
It's easy to get disoriented and confused about which one is which.
(how I know: more than once I have tried to tweek the power and efficiency of a coil that was not for the right band.)
-
- Posts: 25
- Joined: 15 Jun 2022, 17:59
Re: Which relay/coils are for which band???
Thank you very much for your guidance. My radio was bought assembled so I need to get familiar with it.
Thanks again.
Thanks again.
Users browsing this forum: VE3RRD and 1 guest