 |
Over 1000km on 472kHz TX with earth-electrodes
7 March 2015 | by Last night LA4ANA (1047km) copied my 5mW ERP from the earth-electrode “antenna” on 472kHz WSPR. This is my best DX yet on the non-antenna, nearly 300km further than my best previous TX record. I was also spotted by DL4YHF (556km) for the first time on the earth-electrode “antenna”. My PC decided to crash some time after midnight last night, so I missed any DX overnight. These spots were during the evening period.
In the last 2 weeks alone I have been spotted by 28 different stations when I’ve been using 5mW ERP from the earth-electrode “antenna” on 472kHz WSPR. Let no-one say 472kHz is out because they cannot fit an antenna! If my signal can span over 1000km with WSPR then you can surely do better. I make no claims for the earth-electrode “antenna” but if you are unable to erect a proper antenna give it a go.
I have still to try it at this QTH on 136kHz but at my old QTH I managed to be spotted at 250km with very low ERP.
Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.
 Ham Radio Prep |
 KB3IFH QSL Cards  Hip Ham Shirts  Georgia Copper  Expert Linears |  morseDX  Ni4L Antennas  Ham-Cram  R&L Electronics |
- Matt W1MST, Managing Editor
