[time-nuts] Active LORAN antenna
brooke at pacific.net
Fri Aug 26 21:00:34 UTC 2011
It looks like the noise floor is maybe 10 dB higher than the AMRAD
or 30 dB higher than the McKay Dymec active antenna.
Poul-Henning Kamp wrote:
> In message<4E5803CD.5020308 at pacific.net>, Brooke Clarke writes:
>> My interest in active antennas is for the low frequency area where
>> quarter wave wire antennas are not practical.
> That's why I built it: Loran-C, DCF77, Rugby and HBG.
>> For HF you can't beat wire antennas. Active antennas, either whip or
>> loop do not work as well as wire.
> Well, strictly specking he same is true for low frequency, there are
> terms in Maxwells equations which means that size matter.
> PS: Danish blog-post w/ pictures of my build of Chris Trasks antenna:
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