[BC] 944 MHz Wireless mic systems...

[Mike McCarthy]

I've watched this thread...

The reality is the 945 WM's will not do much of anything---even when 
closely located to a STL RX site.  Unless the STL RX is really close to the 
ground and the signal weak, the RX antenna pattern and/or distance will 
essentially render the WM signal unreceiveable.

For the WM to have any impact on a properly designed STL, the WM 
transmitter will need to be in the bore-sight of the RX dish and at such a 
level that it would IX with the incoming signal.  A 4 ft. dish at 100 ft. 
would lay it's 3-dB point on the ground at 500 ft. from the tower.  And 
even then, it would need to be within a couple hundred feet in the 
bore-sight.  While the CA-450 antenna would have less of a well tailored 
vertical pattern when operated in the vertical mode, how often is it that 
an event occurs close to a TX site.

Please understand, I don't for a moment think this is a good idea.  But the 
WM's in this spectrum have been around for YEARS and have not caused 
problems to date.  And I doubt they will.

MM


At 05:57 AM 9/2/2008 -0400, Alan Alsobrook wrote
>Wooten, Charles wrote:
>>That is SCARY !!! I wonder what rock the person who wrote that has been 
>>living under?
>
>Sounds like if you have a concert near your transmitter site, you might 
>get to go live from the concert with no action on your part.
>
>--
>Alan Alsobrook CSRE AMD CBNT
>St. Augustine Fl. 32086 904-829-8885
>aalso at Bellsouth.net