User's Manual

8
solution to long-range transmission available for industrial,
government/municipality or for export applications.
The ISM band is a harmonized band and is available
worldwide. In the US, however, the FM-TX-4000 Mini series
transmitter is designated for PART 90 use and requires a
license to be obtained by the end user.
In addition to the enhanced performance, the FM-TX-4000
Mini series provides a rudimentary security feature, which
decreases the ability of unwanted parties from receiving and
re-broadcasting the transmitted signal. Keep in mind that with
the addition of the security feature, the receiver and
transmitter will not work with off-the-shelf transmission
systems.
Transmitter
The FM-TX-4000 Mini series transmitter is shown in Figure
1. The transmitter is packaged for integration inside a camera
only. It has four (4) wires available - two wires (black - and
red +) for power, one wire for video (yellow) and a channel
change wire (blue: ground for channel 2, open for channel 1).
The system must be installed to operate at a Minimum of 20
cm away from all persons.