[1000mp] Noise on MKV RX Audio

Jay Bromley jayw5jay at cox.net
Sat Dec 10 22:37:11 EST 2005


Hi Paul,
My Mark V is OK, however a good friend of mine and I were trouble shooting 
his setup.  He is using the same setup and it was doing more or less the 
same thing as yours.  As it turn out he was also using a Rig interface box 
from his computer sound card to his radio.  At the same time he also had a 
headset laying on top of his rig that he was using for using Skype, Yahoo 
messenger, and Echolink.  You guess it, the computer headset was picking up 
the motor hum from the fan introducing the audio via the computer interface. 
I hope your problem turns out to be this simple??

Gud luck and 73 de jay/w5jay..




> When the fan is running on my MKV it injects a low level buzz on the 
> received audio. This is low level so you would not normally notice it.
>
> It is most obvious if you inject a clean carrier about 9+20 and then 
> listen in AM or zero beat in SSB.
>
> Can some other MKV user try this and see if it is typical, or whether I 
> have a unique problem.
>
> Thanks
>
> Paul - KW7Y
>
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