Tnx to everyone who responded to my Email concerning mode J filter.  I went ahead and purchased one from Par Electronics.  Will send an update to the BB when it arrives and is installed.

73  Jerry  KJ4EU

On Friday, June 24, 2022, 09:13:34 AM CDT, BeetleJerald Oliver <[email protected]> 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.


Jerry    KJ4EU


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