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Author Topic: TM-731 has poor transmit audio on 70cm band?  (Read 899 times)
HG5AZR
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Posts: 0




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« on: June 12, 2013, 09:55:55 AM »

Hi!

I realised that on 70cm transmit audio is poor.
If I rotate dev pot to max is it normal.

Any suggestion?


Thanks
            Zoli
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K4JJL
Member

Posts: 501




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« Reply #1 on: June 13, 2013, 08:44:53 AM »

Bad pot, cold solder joint.  Does it have separate deviation adjustments for each band?  If not, you might have something going on with the UHF VCO.  A radio that age might have an electrolytic capacitor going bad.
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HG5AZR
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« Reply #2 on: June 13, 2013, 01:01:58 PM »

Thanks for it!

Radio has separate dev pot for 2m and for 70cm band.I am waiting 1-2 year and after if more wronger...change electrolitic capacitor

Thanks
           Zoli
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