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Re: LF: VLF - distances achjeved

To: [email protected]
Subject: Re: LF: VLF - distances achjeved
From: Stefan Schäfer <[email protected]>
Date: Wed, 15 Dec 2010 21:06:24 +0100
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Both arguments agreed.

73s Stefan

Am 15.12.2010 19:30, schrieb Markus Vester:
Hi John,
 
weIl I think I can claim reception of my 90 uW ERP kite signal on 6470 Hz by Paul Nicholson on November 13:
Transmitter near Nuernberg at 49.3874 N 11.1692 E, receiver Todmorden 53.703N 2.072W, distance about 1034 km according to
 
But on the other hand, it looks like on December 4th, 4X1RF saw at least a very faint trace of Stefan on 6470 Hz as well.
 
Best wishes,
MArkus

-----Ursprüngliche Mitteilung-----
Von: Stefan Schäfer <[email protected]>
An: [email protected]
Verschickt: Mi., 15. Dez. 2010, 14:21
Thema: Re: LF: VLF - distances achjeved

Ah John,

Sorry, there is another bug: The QTH of the kite antenna is JN49IS36VH, near Darmstadt.
The Earth antenna is in Heidelberg, JN49IK67

I have changed the entries in the list below.

73, Stefan

Am 15.12.2010 12:04, schrieb Stefan Schäfer:
Hi John,

Am 15.12.2010 11:55, schrieb John Rabson:
I am writing a piece on VLF for the Cave Radio & Electronics Group Journal and would like to include distance records.  Can people please confirm that the following information is correct (or not)?

Above-ground antennas

Hz
ERP mW
From
To
km
8970
58
Darmstadt
Israel/Haifa
2873
6470
9
Darmstadt
Poland/Warshaw
904
5170
5
Darmstadt
Poland/Warshaw
904






The QTH of SQ5BPF is Washaw. The rest is correct.
Earth current antennas

Hz
TX power W
Electrode spacing m
From
To
km
8970
250
600
Heidelberg
Roschbach
49.6


















I did successful tests to Roschbach just on 8970 Hz, not on 6470 and 5170. The distance is 49.6 km (since my earth antenna QTH is different to the kite antenna QTH).

Thanks too.

73, Stefan/DK7FC
Thank you.
John F5VLF

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