LF: : aqc to singapore clip- more

[Laurence KL1X <hellozerohellozero@hotmail.com>]

Hi Chaps - much better last night, ie constructive against destructive on DCF39....peek signals were 5dB above those on the 18th - but I see that s/n is necessarily better.
 
Im sitting here in a massive tstorm at the moment with the antennae disconnected - huge bolts are landing within a few hundred meters. Visibility is only 100m and I can hardly hear myself with the vertical rain - Sheri and I shout across the room to be heard over the thunderous rain.
 
I modded the 1:1 isolation transformer for the PAORDT probe interface based on my tests using the AIM4170 - and sweeping/plotting the losses and VSWR etc  - it now just has 4 turns on the primary and secondary on something close to type 77 material - this allows me to use it 100Khz all the way up to 15Mhz without serious loss at the top end which was happening before. Ive decided the AIM unit is a marvelous tool for building transformers and looking at what the heck is going on for LF and HF
 
I also measured the receive strength of the two probes which are within 2Om of each other -one is some 20ft higher than the other. Using DCF39 on fade out and a mix of Speclabs and Argo Ive determined that theres no advantage to the additional height  and only the spectre of additional attention from passing tstorms. Im my favor I can take down the highest probe in a little over 10 secs! -well to below target height anyway. Of course on 10 and 15Mhz the space diversity affects really show even on this short base line
 
Too many "I's" in this email - apologies. If these blessed storms and associated thumps goes away Ill listen again this evening in the normal slots. 136.317 - 319 KHz tonight.
 
Laurence KL1X aka 9V1 LF
Rather soggy Singapore.

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From: hellozerohellozero@hotmail.com
To: rsgb_lf_group@blacksheep.org
Date: Wed, 22 Aug 2007 18:27:08 -0800
Subject: LF: aqc to singapore clip

Dont know if this is going to work but heres what the station here picked up a couple of days ago from G3AQC tests. Conditions were up again last night peaking for long periods so hopefully as we get more nighttime length we will be seeing more signals. Its about 10,870Kms from Lauries to here.
 
Laurence 9V1LF

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