Topband: What are these weak birdies every 10.0000 KHz?

[Tree]

On Sat, Feb 20, 2010 at 07:28:33PM -0800, Mike Waters W0BTU wrote:

> I have these constant weak carriers on 1810.000, 1820.000, 1830.000, 1840.000, 1850.000 ... on both my R-4C and IC-751A.
> 
> A crystal-controlled wall-wart running at 10.00000 KHz? ;-)
> 
> I've heard of others that had these problems. Any ideas what they might be? TIA.

Those are birdies of your local AM broadcast stations.  Likely there isn't much 
you can do about them.  However, if you do have some wires around (like wire fences
or guy wires that are not broken up by insulators) - you might find that by doing 
some work making sure you don't have bad connections - you can clean them up some.

When you have a bad connection, it will act like a mixing diode and make these
birdies a lot worse.  

Often, the mixing is being done near where the AM station is transmitting and is
very hard to track down.

73 Tree N6TR
tree at kkn.net