We all know that vertical antennas, as high as possible, are
the best choice if one has the place and if there are not to much trees
and buildings. No need for discussions. If there would be something
better: The commercials would prefer it. And of course QRO gives a
better signal than QRP, trivial.
Am 19.02.2011 19:13, schrieb mal hamilton:
I do not have a wideband RX so
cannot help with your request.
Wrong! You have a PC with a Microphone input that covers 0...24 kHz,
wideband! You could simply take your RX loop and feed it into the
soundcard, maybe with a AF transformer for decoupling, just as the most
hams do it. The record distances above 2000km distance were achieved by
such systems so they obviously work. Instead you prefer a 10s year old
VLF RX that is drifting several Hz and feed the signal into the
soundcard at 1 kHz using SpecLab. WHY?
On VLF my max BW is 3 Khz, ideal
for my needs.
But your RX has no noiseblanker and/or clipper and thus you loose
several dB in sensitivity! In summer you will loose >20 dB
sensitivity without noise limiting.
All that can be arranged in SpecLab and most are using these
advantages!
It can't be to difficult to take the cable coming from the RX loop and
connect it to the cable of a headphones plug and put it into the
soundcard input, isn't it?
73, GL, Stefan
Am 19.02.2011 19:03, schrieb mal hamilton:
You have certainly got me puzzled. !!!!!!!!!!
Earlier on this morning at 0253z you
congratulated Toni and Jay on their TA qso.
I was congratulating you on your achievement
with your TX Kite antenna and the distance covered and you OBJECT.
Again the best signals so far generated and
distance covered have been from Vertical antennas, ie KITE, BALLOON and
large Static Ex Broadcast tower.
I have not yet heard/seen any VLF/LF signals
from EARTH TX induced or induction propagation. Are you telling me I
am wrong?
Has you Oscillator drifted off frequency ?
G3KEV
-----
Original Message -----
Sent:
Saturday, February 19, 2011 4:58 PM
Subject:
Re: LF: Antennas es power
Mal,
Are you bored? What's the motive to start that thread? Making some
stress and anger on the reflector?
Watch some TV, look what's going on on HF, take a walk until its dark
or take a bath... There's much one can do :-)
73, GL, Stefan/DK7FC
Am 19.02.2011 17:46, schrieb mal hamilton:
John
A cave DIVER is someone who decends
underground for exploration. I was not referring to Sea/Ocean divers
I did say Cave Divers.
G3KEV
-----
Original Message -----
Sent:
Saturday, February 19, 2011 4:10 PM
Subject:
Re: LF: Antennas es power
On 19 Feb 2011, at 16:53CET, mal hamilton wrote:
On VLF es LF especially, using anything
but a proper elevated antenna is wasted time except one is content with
a few kilometres coverage, and
earth probe inductive/conduction devices
are only good for Cave Divers.
Wrong. They are used by cavers generally, not just divers, and divers
usually only use radio when they come up for air.
John F5VLF
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