Re: KPA 500 birdies
Posted by
Don Wilhelm-4 on
Jan 29, 2012; 3:30am
URL: http://elecraft.85.s1.nabble.com/KPA-500-birdies-tp7233388p7233488.html
Steve,
I just cannot unserstand how the KPA500 can create birdies during
periods of receive.
I would you suggest that you look for other potential problem sources
such as loose PL-259 connectors.
73,
Don W3FPR
n 1/28/2012 8:44 PM, Stuart Dunk wrote:
> G'day all.
> I have a KPA 500 Sn 423 and have discovered birdies every 10khz or so on 20 thru 6m, worst on 10m indicating about 1 s point on the ft1000 mk v field.
> I have checked for external sources, earth loops, wall warts etc.
> The noise is present when there is something plugged into the output of the amp, I use the term something plugged into the output because no matter what , antenna or coax patch cable or dummy load as soon as it is connected to the amp output the noise starts.
>
> I have made up a sniffer antenna to hook up to the output to check various positions in the shack but the intensity of the noise will not change.
> I have checked all the internal connections in the amp all the screws are tight and dimming the LCD makes no difference.
> Has any one come across this in their amp if so did you find a fix.
>
> Regards
> Stu
> VK4SDD
______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html