Hi Stefan -
It gets a little better, ie a few more dB's strength wise but whats important for 8970 is probably the background "blue" youll see on the screen ie the QRN. GBZ/FTA doesnt get much stronger than indicated on the overnight snap.
Optimum path for comms at DHO freq would indicate the middle of Night Eu time, which is kind of challenging at your end - and from Alaska when Im not getting South or Central Pacific/Asia QRN which rises later. As you pointed out DHO isnt 8970 but s/n wise Im guessing its pretty indicative but probably more flat signal strength wise than 23kHz
Ill be in Alaska at home (hurrah) over the Christmas period and installing a new VLF (larger) array, and GPS discplined 10MHz/500Hz ref's which Ive built down here which may help a tadge but looking at the results so far it isnt too shabby.
Ive been built around over the past couple of years on one side but still have the water/ice (Lake) path on the Eu heading. Id love to remote power preamp but the animals and darkness/snow etc make it very challenging just to keep it up remotely.
I want to have at least two loops so I can point one down the West Coast towards Scott in VE7 as hes pretty much in a nullish position at the moment. I could really do with more automation in remote switching USB/serial but things are a little tight at the moment. Ive got a spare rotator and need to get some thought into remote control....
Laurence KL7UK KL1X WE2XPQ etc
Date: Fri, 7 Oct 2011 15:53:16 +0200
From:
[email protected]To:
[email protected]Subject: Re: LF: Conditions
Hello Laurence,
That sound very promising, about DHO!
Do you remember its strength during our last experiments in december and february? Is it even stronger these days?
73, Stefan/DK7FC
PS: Nothing this weekend :-/
Am 07.10.2011 15:19, schrieb Laurence KL7UK:
In Alaska HF, MF and LF appear still to be very very poor with high losses over the Pole - dang pesky Protons.. No real strength from DCF39
Long haul AK firing East on MF was only just above poor with a few hits on WSPR from wd2xsh/7 over a +5000Kms path but still some 25-35dB down on peak levels.
Alaska VLF over the pole to Eu is improving all the time and actual signal levels and s/n improving - Ive spread the bandscale (nice old word that) out a bit to show GBZ and others a bit more clearly - DHO38 peaking some 30dB above noise in the latter half of the Eu night before collapsing at dawn.
http://kl7uk.com/VLFAlaska.html Laurence KL7UK Wasilla Alaska remotely controlled from Oklahoma
