[1000mp] Noise on MKV RX Audio

[D. J.]

On 11, Dec 2005, at 17:47, Paul Baldock wrote:

> Unfortunately not that simple. The Fan is introducing 75mV spices  
> at about 250Hz on to the 13V supply line. I also note that in SSB  
> the 13V supply line is modulated by audio. I'm not sure if the  
> problem is with the supply or with something being too sensitive to  
> ripple on the supply, as I don't know what is "normal".  May be  
> Yaseu will be of some help.
>
> Paul
>

I noticed this also on two MKVs.  I doubt Yaesu will be of much  
help.  Maybe the next generation radio will be free of this, FT-2000?
Dale J.


> At 07:37 PM 12/10/2005, you wrote:
>> Hi Paul,
>> 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??
>
> ______________________________________________________________
> 1000mp mailing list
> Home: http://mailman.qth.net/mailman/listinfo/1000mp
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:1000mp at mailman.qth.net