[TowerTalk] Back of desk grounding buss
Wayne Kline
w3ea at hotmail.com
Mon Mar 24 10:02:46 EDT 2014
WOW another Hustler G series antenna Strike ☹ I had not one but two Hustler G6 LIGHTNING strikes
Both times blowing off the top piece and one cracking the fiberglass tube and one blowing the top off with it's metal adaptor
When I built this station...4 towers each with 4 ground rods with 1 cable in series and parallel and to the tower legs. Feed lines come off the tower to ground the 90 deg enter a Steel WX proof control box. which is also tied into the ground rods. Inside the box the 7/8 hardline connectors are grounded in a bus bar. the closed tower is 80' and longest 300' away . All cables and Hardline are buried in a 3' trench from the towers to the house. Where I have a 3 ft X 3ft X 1ft WX entrance box. The 12 runs of 7/8 hardline have the BIG brass fittings again clamped in a buss bar. the box has 4 ground rods one each side and two 8' out. with #1 copper
Inside there is a 4' X 4' 1/8 aluminum wall panel the 6' RG214 jumpers from the outside hardline are again
run across a 3' buss bar of long double barrels . This panel is grounded to the outside box ground point with 1
1" wide silver-plated braded copper. From the wall panel all coax enters the Radio room 14X20. The rooms ceiling and wall b-4 covering with drywall ,paneling and ceiling tile, were lined with 4' X 8' X .032 aluminum sheets .
Because they wee surplus from work and I had experience from the last QTH of Strong RF fields doing weird stuff.
The wall shield is also tied into the ground system. ( READ) there is NO CELL PHONE signal or WIFI in the shack. 😎
The operating table/desks are solid oak commercial doors 40" X 82" and shelf 24 X 82" The top shelf and the bottom back desk have a sheet od .032 aluminum cut in half and glued down . all radios a boxes are grounded to the ground screen
with the shortest piece possible. these two ground plates are bound together at one corner with 1" silver plated braded copper.
and then the rolling table has another 1" strap through the little cable access window 1' X 1 ' ..... to the distribution panel on the wall .
Is this the best ??? I used the material I had access to at that time 1990 !
Wayne W3EA
PS I did have a 3/4 copper pipe with 1 1/2 # 10 machine screws silver soldered every 12" and wing nut's.
but that was replaced with the sheet ground configuration
>
>
> It seems to work in my shack well. Anyone local ham here can tell you I
> took a direct hit on a 2M G9 "while talking on it" and while the antenna
> didn't make it the radio is still here in the shack today. The only only
> thing I had to replace was the antenna and my underwear.
>
> My Buss bars, ground ring and polys saved the radio. It doesn't take a
> "big" budget. But I think we have beat this one to death.
>
> 73 Dave n4zkf
>
>
>
More information about the TowerTalk
mailing list