[Elecraft] KX1 ?'s

[Don Wilhelm]

George,

I am not certain what you mean by "proper sub forum" - there is only one 
Elecraft reflector that I know of, even if it is presented both in pure 
email as well as Nabble posts.

It is true that the KX1 has several birdies, especially on 20 meters.  
Double check the 14 MHz Low Pass Filter located after the DDS for proper 
components (the DDS has a harmonic-rich output).  I suspect some are 
coming from the DDS harmonics and mixing with harmonics of the BFO.  
There is not a lot of room for complete isolation inside that small 
enclosure.  For the most part, I simply ignore those birdies, but YMMV.

73,
Don W3FPR

On 10/17/2011 7:38 AM, George Winship, NC5G wrote:
> KD6GW wrote:
>> Today, close to civilization, practically everything radiates something.
>> You may be
>> hearing Ethernet trash from your or your neighbor's.  Local oscillators
>> in wi-fi routers, monitors, you name it, and a lot of it seems to
>> concentrate in the 10 - 20 MHz range.  Short the BNC connecter securely
>> with as little wire as you can and see if you still hear the signals.
> The "birdies" are coming from the KX1. I live seven miles from town in the
> middle of
> 60 acres of pines and hardwoods. The nearest house is at least a 1/4 mile
> away. I
> turned off my router and satellite internet but that did not help.
>
> Also, how can this post be moved to the proper sub forum?
>
> 73, George NC5G
>
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