[Lowfer] grounding active antennas

[Douglas D. Williams]

Well, mine is on a 15 ft high tv antenna mast. The mast is galvanized, not
painted, so it would be a fairly simple matter for me to drive a copper rod
at the base of the mast, connect the mast to the rod, then connect the coax
shield to the mast at the top. Might be worth a try to see what happens. 

-----Original Message-----
From: lowfer-bounces at mailman.qth.net [mailto:lowfer-bounces at mailman.qth.net]
On Behalf Of ToddRoberts2001 at aol.com
Sent: Saturday, May 26, 2007 11:52 AM
To: lowfer at mailman.qth.net
Subject: Re: [Lowfer] grounding active antennas

In a message dated 5/26/2007 11:27:51 AM Eastern Standard Time, 
iguana at chartertn.net writes:
I am looking for opinions on whether or not active e-probe vlf/lf antennas
should be grounded at the antenna location. Assume the antenna is located 50
ft or more from the receiver and that the receiver has a good ground.

-Doug KB4OER
 
 
Hi Doug,
       In my experience I have found getting the active e-probe vlf/lf 
antenna as high above ground level as practical helps more than anything
else. I 
have my active antenna hoisted up into a pine tree about 40 ft high and
noticed a 
big reduction in noise level AND a big increase in signal levels, compared
to 
the same antenna ground-mounted 5ft above ground level. 
       There is no practical way to ground the antenna hoisted up in a tree 
but mine works very well using the station ground back at the receiver end. 
       If the antenna is mounted at ground level best thing to do is 
experiment with a remote ground at the antenna and see if it helps.
Everyone's 
situation is different so remote grounding may help sometimes but not
always.
       73 Todd WD4NGG



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