Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: VLF - distances achjeved (home antennas)

To: <[email protected]>
Subject: Re: LF: VLF - distances achjeved (home antennas)
From: "Markus Vester" <[email protected]>
Date: Wed, 15 Dec 2010 22:32:39 +0100
Importance: Normal
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
John,
 
in the "above-ground" category, it may be fair to have separate leagues for airborne antennas (kites, balloons), and backyard-sized Marconi antennas. Stefan may disagree here ;-))
 
Of the latter type, I could contribute Paul's Nicholson's narrowband detections of my 5 uW EMRP transmissions in October at 1027 km:
 
On a smaller scale, there was a unique VLF two-way contact with DJ2LF across 20 km on June 4th, using the same equipment.
 
Best 73,
Markus (DF6NM)
 

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

<Prev in Thread] Current Thread [Next in Thread>