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Re: LF: 8279Hz - or 8270 ? - VLF vertical KL7L

from [Laurence KL7 L] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: LF: 8279Hz - or 8270 ? - VLF vertical KL7L
From: Laurence KL7 L <[email protected]>
Date: Tue, 4 Oct 2016 18:46:35 +0000
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Thread-topic: LF: 8279Hz - or 8270 ? - VLF vertical KL7L

I was asked about the location of the VLF vertical, so here is a link to a photo taken about 5 mins ago - looking North towards the 5000ft or more Talkeetnas mountains - the 6ft-8ft wingspanned family of 5 Trumpeter swans in the foreground, second in mass only to the Condor. The VLF Inspire rx is connected by submerged cat5 then back some 350ft to the shack with isolating transformers at each end; power coming up the other pair


http://kl7l.com/inspireKL7L.jpg



From: [email protected] <[email protected]> on behalf of Laurence KL7 L <[email protected]>
Sent: Tuesday, October 4, 2016 9:26 AM
To: [email protected]
Subject: Re: LF: 8279Hz - or 8270 ?
 

Ive got the KL7L screen on 8270, but its been really noisy overnight for the past two nights - http://kl7l.com/slow00000.jpg




Theres a cheater carrier on 8270.14 which is GPS/10MHz locked from an HP3336b Im using as a s/n ref - I reduced in amplitude down a bit yesterday hence changes


Ive built a pair of crossed loops from the VLFIT loop designs, just the amps to do which may help with nighttime Western Pacific noise. 


 Im using a 5m vertical and FET Inspire design for the present, but its pretty quiet and produces some good recordings at times.  http://kl7l.com/rise.mp3


As ever looking for any Eu signal 😊

Laurence KL7L



From: [email protected] <[email protected]> on behalf of Markus Vester <[email protected]>
Sent: Tuesday, October 4, 2016 8:33 AM
To: [email protected]
Subject: Re: LF: 8279Hz - or 8270 ?
 
Uwe, I assume you are intending to send on 8270 Hz?

73, Markus

-----Ursprüngliche Mitteilung-----
Von: uwe-jannsen <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Di, 4 Okt 2016 6:30 pm
Betreff: LF: 8279Hz

 

tx is ZOA since 1602UTC.

EbNaut transmission at 1700UTC.

8K19A

CRC16

Period 10

6 chars

beacon mode on 30min

 

the RYCOM RX shows abt 30dB lower FS than normal in2015.

 

Uwe/dj8wx


 
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