It could be as simple as local interference especially if the antenna's 
inside or real close to the building.
----- Original Message ----- 
From: "Dave Basden" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, July 08, 2014 1:19 AM
Subject: Re: knocking sound on one frequency and weather alert question on 
TMV71A


> Hi Linda,
>
> I don't know how new you are to 2 meters, but could it be the ker
> chunking of the repeater as someone ends his/her transmission?
>
> 73,
>
> Dave, W7OQ
>
> At 07:52 PM 7/7/2014, you wrote:
>>
>>
>>
>>
>>Hi everyone,
>>
>>
>>
>>1, On one of my frequencies on the TMV71A there is sort of a knocking 
>>sound
>>or thunking sound when I am receiving. My transmissions are fine, but 
>>there
>>is this weird sound when I am listening to other hams. Any ideas? Nobody
>>hears it on their radio, and its just on the 2 meter side.
>>
>>
>>
>>My 440 side is superb.
>>
>>
>>
>>I am proud of good ol me as somehow, my a band got onto my b band or vice
>>versa. I somehow heard the a band on my b band and I fixed that after
>>reading the manual. LOL!
>>
>>
>>
>>Now, I want to set the weather alert. How does this work?
>>
>>
>>
>>I see in the manual that it receives a tone and will alert me on activity 
>>on
>>the weather frequency. When I hear the tone, to I turn the tuning nob to 
>>the
>>wx frequency? How does this work.
>>
>>
>>
>>Thank you!
>>
>>
>>
>>
>>
>>
>>
>>Hugs and 73
>>
>>Linda C. Knight & shirley
>>
>>Ham Radio Operator CallSign: kk4hrg
>>
>>Please note email:
>>
>>[log in to unmask]
>>
>>