Topband: 1820 spur

[Tim Duffy K3LR]

Hello Mike:

I believe that the 1820 spurs are created from multiple sources. That is why
you can hear it at many QTHs around the world (although the spur content is
technically different with respect to the origin). 

There are 57 different licensed AM broadcast stations in the USA and Canada
that operate on 910 KHz. Most all of them are operating within licensed
parameters with respect to second harmonic radiation limits.

Topband stations are best to avoid operating directly on 1810, 1820, 1830,
etc. for this reason.

73,
Tim K3LR

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Mike
Waters
Sent: Friday, November 02, 2012 9:17 PM
To: topband
Subject: Re: Topband: 1820 spur

It can be heard in Japan and Canada?! Where could it be coming from?

73, Mike
www.w0btu.com
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