On Monday, September 4, 2023, 1:09 PM, Erik Eitel via AMSAT-BB <amsat-bb@amsat.org> wrote:

I am fairly new to chasing satellites.  I have the FM sats down fairly well and I am trying to get into the linear birds.

Here’s my set up:

-Arrow antenna with diplexer mounted on bike repair stand.

-ICOM 2730a (I used this with great success on the FM sats)

-2 Yaesu FT-818 (replacing the 2730 for all sats)

I’ve read many articles and visited many web pages but I am confused a bit with desense.  

When operating v/u where should the filter go?  On the 2m side or the 70cm side?

Does it matter if I am operating FM or linear as far as desense is concerned?  I have no problem hearing myself while operating FM v/u sats using the FT-818s.

Can I use the diplexer in the Arrow antenna as a filter?

Still trying to get the hang of the linear birds.

Thanks for the help.

73

Erik 

K2ERK - FN20

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