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Author Topic: Increasing deviation in new Kenwood TM-271A  (Read 1094 times)
K8IQ
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Posts: 1




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« on: September 10, 2004, 12:48:35 AM »

Hello, does anyone know of an adjustment pot/cap to increase the deviation in the Kenwood TM-271A. I've just gotten a new one and it works fine except my friends tell me it seems to be low on transmitted audio. For some reason the only company that seems to provide a schematic anymore on VHF single band mobiles is Yaesu. Any help appreciated

Thanks in advance.

73 Gary K8IQ
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K0BG
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Posts: 10248


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« Reply #1 on: September 10, 2004, 09:46:32 AM »

Before I'd even think of changing the mic gain or deviation, I'd find someone with a communications monitor and measure it. Most two way radio shops will do this for you and most won't charge you if they know you're a ham.

Alan, KØBG
www.k0bg.com
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AA4PB
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Posts: 14491




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« Reply #2 on: September 10, 2004, 06:59:41 PM »

I don't know about the TM-271A, but some radios have narrow and wide FM modes. If you select narrow then the deviation is cut in half (2.5Khz in lieu of 5Khz). You might want to check that out before making any adjustments.
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Bob  AA4PB
Garrisonville, VA
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