RE: [smartBridges] Radio Station Tower

Thu, 14 Aug 2003 14:19:45 -0700

Dennis,
 
Marlon has told you correctly about not installing your equipment on the AM tower site.  It is something that
apparently you have not researched quite enough or have had some very bad advise provided to you.
 
It appears, too, that you have not spoken with the Station Engineer yet, from your statements.  If so, then he is not telling
you what he should be.  Even it the structures themselves are not base-fed, (i.e. "hot"), and are used to support the
vertical radiators, the induced RF will likely cause some very odd problems to your equipment.  Anything located
in the near-field of the radiators will be "rf hot" and difficult to handle.
 
Recognizing the alternative you have is not the best available either, it still is better than what you think will be good here.
You do not want to do this, unless the AM site is "dark" and will not be resurrected in the future.
 
Last thing: if you are still having to amplify the output to cover the desired area, due to foliage absorption problems,
it likely  will not benefit you enough for all the effort needed to get it accomplished.
 
Good luck in your endeavors, but don't waste good time trying to use a AM facility unless you ARE the Station
Engineer and know what the pitfalls are and are capable of accomplishing the steps to overcome them.
 
Ron
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Dennis Burgess
Sent: Thursday, August 14, 2003 12:26 AM
To: [EMAIL PROTECTED]
Subject: Re: [smartBridges] Radio Station Tower

Marlon.. I very much appreciate your comments. 
 
I am going to mount my equipment around the 150-175 foot mark on there 250 foot tower.  I may come lower if needed.  I was convinced in using a amp cause of the trees that are in the area.  Most homes do not have line of sight without some trees. I understand what you are saying though. 
 
What kind of range could i expect from a 8db omni assuming line of sight?
 
dennis
 
----- Original Message -----
Sent: Wednesday, August 13, 2003 10:46 PM
Subject: Re: [smartBridges] Radio Station Tower

I stay away from the station towers as much as I can.  The massive quantities of rf can and often do shut our gear down.
 
By far my most troublesome site is on a radio station tower.  I wished then and do now that I'd have had somewhere else to go, anywhere else to go!  Especially now that they've increased the power on the radio station.  Got 400KBps coming in and 70 going out.  yuck.
 
Other systems up there (at ground level rather than up on the tower) will deliver 250ish out at 12 miles!  Grrrrrr.
 
Stay as low as you can.
 
Also, please note that I've MOVED this thread to the wisp list rather than the sb list.
 
marlon
 
 

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