Is it possible there is a local source of VHF interference?  Can you confirm by connecting a different rig to the same antenna and power supply in the same location?

LCM

Levi C. Maaia, K6LCM

www.levi.maaia.com
+1.805.604.5384


On November 3, 2020 at 21:35:58, Dave Schmidt via SBARC-list (sbarc-list@lists.netlojix.com) wrote:

Question for the group - I have a new Yaesu FTM-7250DR dual band mobile rig and I'm questioning whether what I'm about to describe is normal for a Yaesu. 

The squelch level required to turn off the audio is very high but only on VHF freqs. Range is 0-15 and I need to set it to 9 for VHF freqs and only 1 for UHF.  This is very different than my Kenwood TM-281A, and my Anytone 77UV, both of which squelch level 1 is sufficient.  This is with the same antenna (Tram 1480 base antenna), coax (LMR400) and power supply (Astron 35A linear). I can swap them back and forth and only the Yaesu needs a high squelch.

I know I'm probably the only one with the 7250DR, but is this also seen on the 100, 300 and 400 radios?

Thanks for your input.

Dave
AI6VX


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