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Laurance
You referred to the Russians, US, Chinese etc
government commercial agencies and not your specific experiment.
I do not have a wideband RX so cannot help with
your request. On VLF my max BW is 3 Khz, ideal for my needs.
You might upset Stefan talking about his ERP
from his KITE vertical antenna, Be careful he might go
Underground!!
G3KEV
----- Original Message -----
Sent: Saturday, February 19, 2011 5:06
PM
Subject: LF: Re: Antennas es power
Mal – well done on receiving on 9khz but my interest is greater - and a
plot of 1-24Khz or higher would help me and others see the kind of
levels and signal to noise you, on your antennae system, in your part of
Lancashire compares with mine over here so I can move towards that direction.
Doesn’t take but a few mins but I understand if you don’t want to help.
As one that has operated at a VLF commerical tx/rx research station in
the 70’s let me tell you on some days there was little to no difference in
transmitted signals – we certainly had days when our ERP’s were less than
Stefan and Ossis’ (!)
73
ps At this time DHO38 is the weakest Ive seen it over the pole
Sent: Saturday, February 19, 2011 4:43 PM
Subject: Re: LF: Antennas es power
Laurence there is a BIG difference between radio
amateur transmitted signals and Commercial operators
Regarding LF plots, suffice it to say that if you
read my message you will see that I can copy OE5ODL on 9 Khz in a
qrs 3 window.
and supplied screen shots for
verification.
What is the point sending a 1 - 24 Khz plot also
I use narrow band reception not wideband.
Mal/G3KEV
----- Original Message -----
Sent: Saturday, February 19, 2011 4:27
PM
Subject: RE: LF: Antennas es
power
"proper elevated antenna is
wasted time except one is content with a few kilometres coverage, and..."
Mal - try telling that to the Russian, US, Chinese Mi$#tary
and Antarctic VLF research stations that - they appear to have other
effective solutions to radiate VLF or lower globally and are certainly
not elevated in some forms :-)
Ill still be very interested in
my request for your wideband VLF plots Mal - even if its just over a couple
of hours from 1Khz to 24KHz say - more if you have it. I just dont know how
your view of VLF is in NE England, near that beautiful county of
Lancashire.
Cheers Laurence
KL7 UK aka G4DMA et
al
From: [email protected]
Date: Sat, 19 Feb 2011 17:10:58 +0100
To:
[email protected]
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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