Specifications

RFX-BRK Issue 1 page 16 of 19
7 PREPARING FOR OPERATION
EQUIPMENT PREPARATION
Before leaving the equipment base to undertake an operation it is recommended that the
following equipment checks be made.
7.1 The RFX-BRK Transmitter
7.1.1 Antennas
The unit can be used with a variety of RF Central antennas:-
 ”F1 patch”, a small low profile antenna which matches the ultra compact features of the
transmitter
 Omni antennas are typically used for ground based fixed and mobile operations, or
helicopter air to ground
 Low profile antennas are used for uplinking ground to air, or on-board linking
 Helix antennas offer increased gain and directivity
 Fan-beam antennas offer increased gain and 90 degree sector coverage.
 GPS steered antenna, for helicopter air to ground
 Parabolic antennas offer the highest gain, and longest operational range
Full details are given in the RF Central Antennas data sheet
7.1.2 Transmitter checks
The transmitter may be powered from an external AC/DC PSU, or by batteries. Check that
any batteries to be used are fully charged and that an emergency spare battery is
available and fully charged.
Confirm that the correct pre-set RF channel and modulator operating mode is selected by
the rotary switch on the front panel.
7.2 The Receiving Equipment
The RFX-BRK mini transmitter may be used with a variety of RF Central digital receivers.
Full details on the operation of the receiver are given in the associated manuals.
When used with the RFX-BRK transmitter, the receiving equipment produces two audio
channels, analogue and AES3 digital, together with SDI and composite video monitoring port.
The RFX-RMR receiver also has an ASI output.