I assume that there is a ground rod at the Hytower connected to the end of
its radial system and its coax shield. If not I would put one in. The
current induced into the old ground radials by your inv V will pass thru the
short earth path between the 2 ground rods with a small power loss.
Preferably you will be able to connect the 2 ground rods together with a
heavy copper wire.
73, Dan, N5AR
From: Larry DiGioia N8KU [mailto:email@example.com]
Sent: Sunday, December 02, 2007 12:20 PM
To: Dan Hearn
Subject: Re: [TowerTalk] radial connections
The inv-L consists of a Budwig connector, attached to a DX-engineering
radial plate, which is jumpered over to a ground rod. All radials (both
old and new) are #12 THHN. The old ones on the HyTower are sunk into the
ground long ago, and the new ones on the inv-L are still on the ground
Dan Hearn wrote:
> Larry, what is the shield of your coax connected to? A ground rod at the
> vertical base?. Are the radials bare or insulated wire? 73, Dan, N5AR
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com]On Behalf Of Larry DiGioia N8KU
> Sent: Sunday, December 02, 2007 7:51 AM
> To: firstname.lastname@example.org
> Subject: [TowerTalk] radial connections
> I just got done installing a new inv-L for 160, right next to my
> existing Hy-Tower, which has 77 radials.
> I managed to get 4 new radials for 160 run before the wx turned bad, and
> I ran a single connecting wire between the two bases. Eventually, I will
> end up with two radial systems crossing over/intersecting each other.
> The antenna works fine, I got a GM last night on the first call with 100W.
> My question is, for now, if there are lots of radials underneath a
> vertical, BUT NOT CONNECTED TO IT, do they do anything?
> Larry N8KU
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