I have build BATC Bias-T and reference Injector PCB, but the filtering isn't good between LNB input and the Reference input.
I have added some screens from my analyser.
I have build the PCB with the 2 optional attenuators.
I don't know why but I have rotated the pictures again and again but they still upsite down on the forum ( sorry )
BATC Bias-T and reference Injector problem
Forum rules
This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
BATC Bias-T and reference Injector problem
- Attachments
-
- ref2if.jpg (128.44 KiB) Viewed 1623 times
-
- lbn2ref.jpg (127.62 KiB) Viewed 1623 times
-
- lbn2if.jpg (130.35 KiB) Viewed 1623 times
Re: BATC Bias-T and reference Injector problem
I can't really read these upside down- can you explain what you mean and what you were expecting from a simple diplexer? Anything over 20dB at 25MHz vs 789 MHz is a bonus.
Mike
Mike