[AMSAT-BB] Re: Mode J Filter

Also have a look at https://www.dk3wn.info/wp/equipment/mode-j-filter/

On 24-06-2022 16:12, BeetleJerald Oliver wrote:

I am still having desense on my UHF downlink on the IC-9700. Antenna is a 30 element M2 CP Yagi with SSB Preamp at the antenna.

I have yet to check connections at the end for any problems, but will do so.

Connectos are all Type N on system.

Is there any better option than the Comet CF-416C diplexer to help or even eliminate the 2M uplink from desensing the 70CM downlink ?

I would have to weatherize it to ensure longlife, etc. Perhaps there is a sealed inline filter that would handle the capability of the

radio which is 75 watts out on 70CM. Anyone with info pleae share with me.

Tnx

Jerry KJ4EU