31 Mar 2011

Transequatorial 70MHz QSO

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SV2DCD and ZS6WAB have had the first ever 70MHz transequatorial (TEP) QSO on 70 MHz. It has also been announced that Namibia now has acce...

Earth mode VLF tests with E-field probe RX on car

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As an experiment today I rigged up an E-field probe on the car to try to do something similar to LA3EQ's earth mode tests of the last f...

WSPR at VLF

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Seeing Jan LA3EQ's recent 4km earth mode tests with WSPR at VLF I must pass on something I'd forgotten about. WSPR software is abl...

Bank bonuses - direct action Dutch style

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Being really VERY annoyed with the size of totally unjustified bank bonuses in the UK, I was amused to read this article which proves that p...
1 comment:
30 Mar 2011

A 100W PA for VLF use

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BK Electronics in the UK make a range of MOSFET PA units with built-in toroidal power supplies. They have a 100W unit for £53, which is very...

Easy mistakes

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On Monday night I was looking for Uwe DJ8WX again on 8.97022kHz.  To my great surprise I copied nothing when G3ZJO and M0BMU were getting g...
27 Mar 2011

G3XIZ a good signal on 8.976662kHz VLF today

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Chris G3XIZ has just started TXing again and is a decent signal here in 424uHz bandwidth with the signal up to 20dB over the noise (see pic...

Back from holiday

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There have been no posts this last week as I have been away on holiday in Devon in SW England staying at my brother's cottage. For once ...
19 Mar 2011

Loop TX antennas at VLF

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At first sight the idea of a 10m x 10m wire loop as a TX antenna at 8.97kHz VLF sounds a non-starter as a way of radiating any useful power...
1 comment:
18 Mar 2011

G3XIZ and DJ8WX on 8.97kHz

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The Spectrum Lab plot showing reception here again of these two stations around 8.97kHz VLF. Both were using back garden antennas. DJ8WX is ...