[ARC5] MF and the BC-453

Kenneth G. Gordon kgordon2006 at frontier.com
Wed Sep 11 01:23:01 EDT 2013


On 10 Sep 2013 at 21:18, Dennis Monticelli wrote:

> Yes.  A lot of signals.  I have logged nearly 100 with a BC-453B here
> on the west coast.  Propagation on those wavelengths is very different
> (e.g. very long fades) and sometimes surprisingly good if the
> lightning static and switching supplies don't do you in.  Some beacons
> are only 25 to 50W of A2 mod feeding 50' of "T" antenna yet can
> sometimes be copied 2000 miles away with simple equipment.
> 
> Dennis AE6C

I used my BC-453B here a couple of months ago to copy those airport 
beacons despite my poor antenna and lots of noise.

In order to get any sort of peace and quiet, I have to turn off the AC power to  
the dishwasher, the clothes washing machine, my shack computer and its 
monitor (the monitor has RF output exactly on 500 KHz), and other noise 
sources in the house here.

So, the only time I can go "hunting" down there is after everyone else is in 
bed.

My furthest "DX" was a beacon at a small airport in far northern NWT in 
Canada. Distance was over 2200 miles. I wrote the call down but have 
forgotten it.

My BC-435B can hear an AM signal of 0.3 microvolts. I can even just barely 
still hear an AM signal at 0.1 microvolt, but I can't copy it. I just hear it in 
there.

I have all three IF transformer rods pulled up to their loosest coupling. The 
"other side of zero-beat" isn't even there.

Ken W7EKB


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