Eddie,
I have copied you already on the earth electrode antenna this afternoon and see
you are copying me too. Signals to/from G4HJW 9km away are as strong as before.
At greater range signals are down a bit, but still getting plenty of spots.
Not sure of the ERP on the earth electrodes. With the same current meter in
series with the earth electrode loop I measure about 30% of the voltage on the
short Marconi.
I find it amazing this set-up works as well as it does. Who needs antennas!
The earth-electrode 472kHz kit will run overnight and I'll be able to analyse
results thereafter.
BTW Eddie, we should manage a 2-way Jt9-1 QSO with me on the earth electrode
antenna. Maybe try later in the week, although I hope to erect a REAL antenna
for 472kHz next week to compare with all results so far (big external loading
coil, longer vertical section, top capacity hat).
73s
Roger G3XBM
On 6 Jan 2013, at 13:25, g3zjo <[email protected]> wrote:
> OK Roger
>
> I shall look for you. As a reference your signal at approx. 13:00
>
> 2013-01-06 13:10 G3XBM 0.475652 -14 1 JO02dg
> 0.01 G3ZJO IO92ng 79 270
>
> Seems you are not decoding me at the moment.
>
> Eddie
>
> On 06/01/2013 11:53, Roger Lapthorn wrote:
>> Later today I intend to transmit for several hours using my 20m spaced earth
>> electrode "antenna" normally used on VLF. The wire between the 2 electrodes
>> is at most 1.5m above ground and runs between the house and a ground stake
>> at the bottom of our small back garden. Signal levels are likely to be down
>> on those obtained with my 6m long (1/100 wavelength) vertical, but I am
>> interested to know by how much.
>>
>> So, if you copy my WSPR signal later today at a lower level than usual, you
>> know the reason.
>>
>> I expect to set up after lunch and start TXing around 1400gmt.
>>
>> WSPR reports on the earth probe antenna will be MUCH appreciated.
>>
>> 73s
>> Roger G3XBM
>>
>> --
>> http://g3xbm-qrp.blogspot.com/
>> http://www.g3xbm.co.uk
>> https://sites.google.com/site/sub9khz/
>> http://qss2.blogspot.com/
>
>
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