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Re: LF: Re: Delays

from [Roger Lapthorn] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Re: Delays
From: Roger Lapthorn <[email protected]>
Date: Sat, 4 Dec 2010 19:38:40 +0000
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Reply-to: [email protected]
Sender: [email protected]
Hi Mal,

A question directed to me?

Well, I carried out another transmit test last week (out in the snow with earth electrodes/loop on RX) having done several earlier in November on 8.760kHz QRSS3.  I'm expecting to do further tests next week as the weather is now easing.  At present my activity is limited to earth mode conduction/induction, although I want to do a test using very long QRSS hoping that some more distant stations may detect any weak radiated component. I'll give good warning of this so people can be prepared.

Today I succeeded in just copying DK7FC on 8.97kHz for the first time (using just my 20m spaced earth electrode antenna structure) having managed to better understand the power of Spectrum Lab on very narrow settings locked in frequency to a VLF MSK station for frequency accuracy. Having seen how effective this can be, I'm encouraged to set up these long QRSS tests quite soon as I believe reception in the far field is a real possibility even with the low power I'm using.

In the coming 12 months other approaches will be looked at too. These include:
  • A balloon or kite supported vertical
  • Longer baseline earth electrodes (possibily /P on TX)
  • Higher power (up to 100W)
Experimentation on VLF can take many forms. Getting reports from real DX distances, such as 4X1RF today by Stefan, is a wonderful aim for some, but I'm quite content to take smaller steps and learn in the process. I've been greatly supported by people on this list who have accepted my great ignorance yet helped me on my way. Thank you everyone. I keep my website updated with any progress and news of tests; see http://sites.google.com/site/g3xbmqrp/Home/earthmode .

Mal, I doubt you'll ever detect me on VLF, but that does not mean I'm not experimenting, HI.

All the best

73s
Roger G3XBM



On 4 December 2010 18:49, mal hamilton <[email protected]> wrote:
OM
I am still awaiting a reply to my message about your activities on 9 Kcs. When do you expect to transmit. From previous postings I understood you were ready to go and awaiting a NOV. Has the snow delayed your activities or are you having second thoughts. I hope you are not offended by asking this question.
de G3KEV
 
 
----- Original Message -----
Sent: Saturday, December 04, 2010 4:48 PM
Subject: Re: LF: Re: Delays

Sorry to go on about this, but a Yahoo Groups version of the LF-reflector would serve our needs better IMHO.

A group for sub-9kHz has already been set up. See http://tech.groups.yahoo.com/group/sub9khz/ , but it would take 5 mins for moderators here (are there any?) to set up the direct equivalent of this group on Yahoo with all the advantages of web based message reading (if required/preferred - users choose), 100GB photo storage, full message archives and search facilities, file storage, polls, databases, ability to moderate, ban mal-content members, etc etc.

73
Roger G3XBM



O forn 4 December 2010 16:29, Alan Melia <[email protected]> wrote:
Hi Chris, I am on BT Internet as well and I am getting messages within 4
mins when posted by UK stations. Certainly one of the mesages from Germany
took nearly half an hour to come through, so it may be congestion en-route.
Reflector messages are 2nd priority to a lot of ISPs, and nodes.

Alan

----- Original Message -----
From: "Chris" <[email protected]>
To: "RSGB LF Group" <[email protected]>
Sent: Saturday, December 04, 2010 4:03 PM
Subject: LF: Delays


LF,
Is anyone else experiencing long delays with messages being relayed by this
site? It's rather screwing up keeping track of what Stefans up to here.
Chris, G4AYT.





--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM   GQRP 1678    ISWL G11088



--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM   GQRP 1678    ISWL G11088
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