[BC] Directional FM Antenna measurements...

[Burt I. Weiner]

Fred,

If that's a fee to have the antenna documented by the manufacturer, 
it's well worth the money.  Doing a FM antenna proof is very 
difficult.  In the real world you'll have to deal with reflections 
from everything including the ground.  Measurements of this type are 
usually done at 30' above ground elevation; is quite time consuming 
and expensive.  When you've finished you'll think that $10,000 
would've been a real bargain.

Burt

>    I'm working on a small class A in Colorado. 89.5, 100 watts ERP,
>wedged in pretty tight due to 1st adjacent issues. After getting some
>antenna quotes, I'm finding that the antenna itself isn't so bad, but to
>get an "FCC proof" is adding around 10k to the cost of the actual antenna.
>
>     So, here's my question-has anyone on this list ever done their own
>antenna measurements on an FM DA, submitted them to the Commission and
>received the FCC's blessing?
>
>Fred Morton
>Houston