[BC] Counterpoise Ground System

[Bailey, Scott]

I was reading a copy of the RCA radio antenna engineering book, from
1952, ( I have downloaded as an e-book) and it has a section on roof top
antennas.  It mention that the ground wires would slope down the side of
the building and insulated away from any objects that would cause return
problems. That might have been the case of KFIO. 

Scott


-----Original Message-----
From: broadcast-bounces at radiolists.net
[mailto:broadcast-bounces at radiolists.net] On Behalf Of Bill Harms
Sent: Wednesday, September 20, 2006 4:49 PM
To: Broadcasters' Mailing List
Subject: Re: [BC] Counterpoise Ground System

Good thought Nat.

	In the case of Spokane, the earliest stations were mounted on
the 
tops of downtown buildings and a high school building (KFIO on North 
Central High School). KSBN is a legacy of that era, although by 1946 
when the installation was built, other stations were located in 
better sites. I am sure the case is similar in other cities.  
Baltimore has a rooftop station also (WITH 1230).  When I took 
pictures of that installation, I did not have access to the roof so I 
do not know what the ground system is like, but I do know it does not 
have an overhead counter-poise system like KSBN 1230.

On 20 Sep 2006 at 12:06, nakayle at gmail.com wrote:

>  Very interesting installation but I never have understood the logic
> of rooftop AM antennas.  Seems to me a ground mounted tower would work
> better and be so much easier to do. 
> 
> And I can't imagine even building a rooftop system now a days as
> strict as zoning and building codes have become.  Now a days you're
> lucky if they let you build a tower at all. 



_______________________________________________

The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
Cable-Connectors-Blocks-Racks-Wire Management-Test Gear-Tools and More! 
www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com