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In article <1438@nicmad.UUCP> brown@nicmad.UUCP (Mr. Video) writes:
>In article <4484@watmath.UUCP> mwtilden@watmath.UUCP (M.W. Tilden, Hardware) writes:
>>Anybody know of any circuits or modules that can transmit NTSC black/white
>>video over a distance of 2 miles?  Some friends and myself are trying to 
>>put real-time vision on a radio-controlled plane.  Any magazine referances 
>>or books would be helpful.  Please respond via E-mail and I'll post a summary
>>later on if anyone's interested.
>
>Before anybody says anything else:  Any tv transmitter that can transmit for
>at least 2 miles will require FCC approval.  In other words, forget it.  Not
>only that, you probably couldn't get it to fit in the plane.
>
>Mr. Video

Not true! The FCC has allocated bands in which one does not need a license
of any kind to use the frequencies with any kind of modulation desired.
The only restriction is the field strength measured at a specified distance
from the transmitting antenna. One may use any amount of RF power as long
as the field strength specification is met (read: you can use 1kW if your
antenna is very lossy). Since the poster is already using one such band to
control the airplane, the poster most certainly can use another frequency in
the same band for the TV signal. Also, the 2 mile range is trivial given that
the plane controller already has line-of-sight communication with the plane.
Please, Mr. Video, go look at the FCC Regulations, especially Part 15.

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