[Lowfer] Odd 137 kHz Propagation

[Howell, Laurence (Shanghai/Singapore)]

Used to see this between xfx and xdw on 137kHz at pre dusk dawn when the layers/reflection height was changing....distance was 50 miles baseline....



----- Original Message -----
From: lowfer-bounces at mailman.qth.net <lowfer-bounces at mailman.qth.net>
To: Discussion of the Lowfer (US, European, &amp;  UK) and MedFer bands <lowfer at mailman.qth.net>
Sent: Thu Mar 13 08:13:51 2008
Subject: Re: [Lowfer] Odd 137 kHz Propagation

Hello Warren,

Nice grab. Could be doppler, but not the clean doppler from an airplane. 
Needs to be much bigger reflector

How about the doppler off of the shuttle's contrail (rocket exhaust) ?

Has mushiness like aurora doppler. And peaky, it came and passed.

Stan, W1LE    FN41sr   Cape Cod"

    I can't copy any sky wave on LF so haven't seen that effect but it's 
pretty common on 13.555 MHz, or at least it was back when "the band was 
open" more of the time.  I assume that is more or less similar to the 
propagation condition when AM SW signals "sound hollow".

Ed
_______________________________________________
>From the Lowfer mailing list
Send messages to: Lowfer at mailman.qth.net
To sub/unsub visit: http://mailman.qth.net/mailman/listinfo/lowfer