Re: LF: DX with 472 kHz, earth electrode antenna, 25 Watts output :-)

[IK1WVQ Mauro <ik1wvq@stmb.it>]

Hi Piotr,
compliments..

please can you give us more information about the 
dimensions (and material) of the "electrodes" and 
how these are routed to the PA  ??
What kind of soil do you have? wet? sandy?

thanks in advance

73 de Mauro IK1WVQ



At 08.32 20/09/2014, Piotr Herko wrote:


> Hi,
>
> I reached OH8HTG WSPR, Â 1414, Â km with my 
> earth electrode antenna! TX is M1GEO project, 
> DDS RN3AUS, electrodes are 20 meters apart. 
> Antenna is directly connected to 50 ohm tx 
> filter with serial 2,2 nF capacitor. SWR is 
> about 1,1 to 1.4 according to weather. Direction of the antenna is NE, 50 deg.
> So far my WSPR was received in DL, OK, OE corner 
> by DH5RAE,  DJ0ABR and  DC1RJJ, about 650 km 
> far. Also closer by SP2OVY and SQ5KLN.
> Who can help me estimate EIRP power? I declare now in WSPR beacon 5 mW.
>
>
>
> 2014-09-20 02:14Â Â SP5XSBÂ Â 0.475636Â Â -30Â Â 
> 0  KO02ld  0.005  OH8HTG  KP34  1414  12Â
> Â 2014-09-20 02:12Â Â DK7FCÂ Â 0.475684Â Â -9Â Â 
> 0  JN49ik  1  SP5XSB  KO02ld  911  66Â
> Â 2014-09-20 02:06Â Â SP5XSBÂ Â 0.475636Â Â -33Â 
>  0  KO02ld  0.005  OH8HTG  KP34  1414  12Â
> Piotrek, sp5xsb