Re: LF: RE: 136kHz WSPR experiment

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Agreed - in the direction of the wire: in my case W-E is the best direction.

By the way, last night I was on 630m WSPR RX with the earth-electrode "antenna" with a preamp in circuit and the shack PC on batteries. Best results yet with 23 unique stations spotted. I am sure a good Marconi will better it, but it does a very decent job.

73s

Roger G3XBM

On 24 January 2018 at 22:10, Markus Vester <markusvester@aol.com> wrote:

>> (Unfortunately the directivity of that earth antenna is almost orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/

No, an earth antenna radiates in the direction of the wire, approximately east-west...

73, Markus

-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mi, 24. Jan 2018 19:27
Betreff: Re: LF: RE: 136kHz WSPR experiment

Am 24.01.2018 15:00, schrieb Roger Lapthorn:
> To get best results I think you need LOW conductivity around the
> earth-electrode "antenna", so the signal spread (and hence effective
> loop area) is greatest. Placing near a river is likely to give poor
> results in my experience.
I agree.

Best would be a stony mountain sourrounded by a small lake rivulet. For
example like here:
http://k7fry.com/grid/?qth=JN49AK54QN&from=JN49AK64OK !!!!
(Unfortunately the directivity of that earth antenna is almost
orthogonal to the RX sites of Paul, DL0AO and DK7FC :-/
Ah and BTW it would be good to have a good Restaurant near that
location, just to spend a few hours there while transmitting.
Sharing some of my thoughts... :-)

73, Stefan