[arm-allstar] Setting levels for proper DTMF decoding

John Simmons jasimmons at pinewooddata.com
Tue Sep 24 14:06:01 EDT 2019


You might try turning rx level up until the decoding gets intermittent, 
then down until the decoding gets intermittent, then setting it half-way 
between. Then set the transmit level for proper deviation.

-de John NI0K

"Mike Sullivan via ARM-allstar" wrote on 9/24/2019 9:57 AM:
> Is there a proper way to set up output levels to an interface to ensure
> DTMF is decoding properly? I have two similar setups at two club's tower
> sites, both using RC-210 hardware controllers. The node at our club's site
> decodes DTMF fine, but the other club's site does not decode DTMF well
> (both using DTMF regen in the controller) even though we've gone in and
> properly set up audio levels on both controllers. Just wondering if there's
> a secret trick somehow to make sure it is working properly.
>
> Mike
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