[time-nuts] Active LORAN antenna

[Brooke Clarke]

Hi Poul:

It looks like the noise floor is maybe 10 dB higher than the AMRAD
http://www.prc68.com/I/Images/AMRAD_BT.GIF

or 30 dB higher than the McKay Dymec active antenna.
http://www.prc68.com/I/Images/Da100nf.GIF

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.End2PartyGovernment.com/


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.
>
> Poul-henning
>
> PS: Danish blog-post w/ pictures of my build of Chris Trasks antenna:
>
> 	http://ing.dk/artikel/96239-min-stakkels-revisor
>
>
>