[Premium-Rx] 80m Long Wire v. ALA1530 Loop

[Brooke Clarke]

Hi Joseph:

Long wire antennas are open circuits at DC and the lower RF frequencies and so noisy.  But antennas that are shorts at 
DC are very quiet.  That's because kTBR is very low.
You might try grounding the far end of your 80m antenna using an RF choke that has maybe 500 Ohms reactance at the 
lowest frequency you want to hear to see the effect on the noise.

-- 
Have Fun,

Brooke Clarke, N6GCE
https://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.

-------- Original Message --------
> If I compare my long wire of 80m placed at 10m high and my Wellbrook ALA1530 placed at 3m, there is no photo ... the signal levels are practically the same but the noise, my friends, is much, much , much weaker on the loop
> The noise is sometimes so loud that I cannot hear any useful signal on my LW but it is audible on the ALA1530
>
> I only use my long wire for the transmit, never more for pure listening
>
> For the receiver, I went from the RX340 to the WJ8711A and I sold everything for an IC-R9500 today ... a little gem but which will be very difficult to repair the day it breaks down .... this is the price to pay for too much modernity and complexity
>
> I regret a little my old JRC-NRD93 which was excellent, very simple to use, composed of traditional components and which was very reliable but good, I could not keep everything
>
>
>
>
>
> ______________________________________________________________
> Premium-Rx mailing list
> Home: http://mailman.qth.net/mailman/listinfo/premium-rx
> Help Page: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Premium-Rx at mailman.qth.net
> Help Contact eMail:  radio at 8zo.com
> Home Page:  http://www.premium-rx.org/
>