[BC] Orienting a Directional FM antenna

wpio-fm wpio at gate.net
Fri Jun 1 13:29:34 CDT 2012


It's not an issue easy when face mounting an FM directional 
antenna...just get it on the correct face.

However, sometimes, on a leg, or pole mount, it requires an angle.  I 
have one such situation with a two bay Horiz antenna that Shively is 
making for WEJF, Palm Bay, FL.

It is to be oriented 15 degrees off in relative to zero.  In this case, 
zero is 90 deg to the face of the tower but on a pole mounted in the 
middle of the face.

My riggers are not going to know how much swing constitutes 15 degrees. 
Makes me wonder of someone makes a sticker band for 2 1/2" OD pipe that 
has degrees marked on it.  They could follow that I think.

Shively says I'm the first to ask them how to get pole orientation 
correct in the field.  I'm trying to get them to give me a measurement 
of say the tip of the horizontal parasite back to the coaxial joint for 
that bay...which they appear to be open to.

I don't want to imply that this is a Shively (or any other mfgr 
problem).  It is my problem, but it is indeed a problem.

Randy
wejf



More information about the Broadcast mailing list