Nov.
5
WSPR 40m
40m is the band where my antenna works. After installing the new cable (double shielded H2007) in combination with the common mode choke at the 1:1 balun at the feed point, the dipole works very well even at this low height between 9m and 5m. Noise floor is at least 12dB less than before (now ca -120dB). No birdies from computers anymore. If there is no signal there is a straight line on the waterfall display of the Flex-1500. AND my signal is heard now worldwide. Received signals are also about 10 dB stronger indicating that there has been a bad attenuation in the old cable, which looked very rotten after I had cut it through at different places. WSPR is fun now, but I also have been listening to a lot of other signals (CW, SSB, PSK ...) with my radios on 40m.
40m is the band where my antenna works. After installing the new cable (double shielded H2007) in combination with the common mode choke at the 1:1 balun at the feed point, the dipole works very well even at this low height between 9m and 5m. Noise floor is at least 12dB less than before (now ca -120dB). No birdies from computers anymore. If there is no signal there is a straight line on the waterfall display of the Flex-1500. AND my signal is heard now worldwide. Received signals are also about 10 dB stronger indicating that there has been a bad attenuation in the old cable, which looked very rotten after I had cut it through at different places. WSPR is fun now, but I also have been listening to a lot of other signals (CW, SSB, PSK ...) with my radios on 40m.
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