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Date: Mon, 12 Oct 2015 16:06:14 +1100
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From: Dimitrios Tsifakis <dtsifakis@gmail.com>
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Beverage on LF/MF
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Hi Alex,

very interesting, thanks for your information. The challenges in my
case would be keeping the kangaroos, wallabies and wombats away from
the wires, but at least the temperatures are a bit more pleasant :-)
My place is also very undulating, the highest from the lowest point is
about 80 m difference in elevation. This makes me think that a wire
from the bottom to the top will have some respectable vertical
component. Of course there is the proximity to the ground which will
mess things up, but perhaps it is worth a test.

73, Dimitris VK2COW


2015-10-12 6:01 GMT+11:00 DK7FC <selberdenken@posteo.de>:
> Hello Alex,
>
> Thank you, interesting to read!
> I like to spend time alone in the nature. Siberia must be a very good place
> for that and for playing with laaarge antennas for LF/MF :-)
>
> 73, Stefan
>
>
> Am 11.10.2015 19:40, schrieb Alex R7NT:
>
> Hi Dimitris VK2COW,
> Beverage was my favorite antenna for the reception at 136/500 kHz and
> 160-80-40m
> I used beverage in all my LF DXpeditions - abt 2km long on Siberia 2 Rus LF
> DXpedition   (MO94TL80QU) and on Russian Far East 3 Rus LF DXpedition
> (PN63CI41RU) - abt 1.5km long to EU and abt 4km to ZL.
> I used the enamel copper wire diameter of abt 0.5 mm to made the beverage.
> I gested the beverage directly on the the ground (BOG) - this was a
> temporary option. Weight of the enamelled copper wires with a diameter of
> 0.5 mm is abt 1.8 kg per 1 km length
>
> I used the isolated wire (4 Cu + 3 Fe, 10.5kg per 1km ) for 1.2-2km long as
> BOG at the stationary place on Machta (KN97LN09IG) until 2010. LF/MF
> beverage can be placed under ground (10-30cm), I believe :-)
> Some ideas abt optimal h for 160-40m is on DL2KQ  For example h opt for 240m
> beverage on 160m is 0.1m (80m - 0.65m and 40m - 1.9m)  240m is 1.5 Lambda on
> 160m (940m - 630m). BV 2km long is fine RX ant for 136kHz
>
> 73! Alex R7NT  136.73.ru