Re: [IRCA] Beverage antenna/ALA 100

[Nick Hall-Patch <nhp@xxxxxxxx>]

At 06:21 1/28/2009, you wrote:

>Patrick,
>
>I'm interested in the ALA 100 also, especially if the figure 8 pattern is
>narrow. It uses +12VDC. So there's some sort of active circuit inside the
>little blackbox. Do you (or anyone else) know what the circuit does for the
>antenna?
>

The loop's figure 8 pattern has the broad lobes and relatively narrow nulls of a standard loop antenna pattern, Chris.

Definitely a preamplifier at the antenna.  Primarily acts as a balanced to unbalanced active device so that the noise level from the antenna is low, but there is some gain as well.  

best wishes,

Nick



*****************************
Nick Hall-Patch
Victoria, BC
Canada 

_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx