"Jeff Liebermann" napisal w wiadomosci
...
On Sun, 15 Apr 2012 18:49:08 +0200, "Szczepan Bialek"
wrote:

And what do you do with the static build up?
Best Regards,
S*

Use a static electricity dissipator:
https://www.google.com/search?q=static+dissipator&tbm=isch
Commonly found on airplane wing tips, fiberglass hull vessels, and
ungrounded towers prone to lightning hits. A 1M resistor to ground
will discharge any static build up across a base insulated tower.
http://www.lbagroup.com/international/tower-lightning-protection.php
http://www.lpsnet.com/ALS.asp

I'm not sure why you're arguing about grounding antennas. There are
plenty of examples of antennas that operate without a ground. If low
frequencies are your immediate concern, may I point out that DF loop
antennas are very popular on the beacon bands (200-400KHz). They also
work nicely in airplanes, where there's no available earth ground. BCB
is no different. There were plenty of antique home receivers that
used either an internal or external loop (or loopstick) antenna, that
didn't require a ground connection.

If BCB stations decided to use horizontal dipoles instead of vertical
monopoles, a ground would not be needed. The only reason they need a
ground is to act as the counterpoise for the monopole. This provides
the missing 1/4 wave element of the dipole.

I am not arguing. I agree with you that " they need a ground is to act as
the counterpoise for the monopole."
I hope that you agree with me that monopole on the plane/satellite has the
counterpoise in form of chassis.
S*