COBHAM RT-7000 PMR User Manual

150-071724 Rev N
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4 transmitter that outputs 4 Watts of AM power. It is intended for use at
communication ranges that are less than 100 nmi. It cannot be used for long
range (200 nmi) communications.
- The RT-7000 PMR and RMR provide full 25 kHz and 8.33 kHz operation, however,
the radio is not TSO’d to function as a Class 6 transmitter (100 mile maximum with
8.33 kHz channel spacing) or a E receiver (8.33 kHz channel spacing environment
not having offset carrier operation). Because 8.33 kHz operation does exist in the
RT-7000 PMR and RMR, airworthiness approval for 8.33 kHz operation must be
addressed at the aircraft installation certification.
When multiple on board VHF radios are being used, frequency management
between the on board VHF radios must be performed to mitigate the effects that
may be seen due to frequency bleed over into the adjacent channels. If the RT-
7000 and another VHF COM radio are tuned on the adjacent channels of each
other, the radio users need to coordinate with each other to give priority to ATC
communications
- If the RT-7000 is to be used as a TSO’d VHF ATC COM radio, 118 MHz HPF must
be installed in the antenna feed between the coax connector for the Wide Band
Transceiver and its antenna. The 118 MHz HPF is designed to add additional
protection from the strong interfering transmitters in the commercial FM frequency
band. This filter protects the Wide Band Transceiver from interference from these
strong transmitters. It is expected Ground/Flight testing, as necessary, will
demonstrate the HPF does not prevent acceptable communications may continue
to occur when the additional attentiation from HPF is present for aircraft
airwothiness approval needs.
5.3 SYSTEM CONFIGURATIONS
The 7000 series products can be confiugured in a variety of different setups,
connections and configurations. Each of the 7000 products can be configured
individually from each other, and additionally the 7000 series products can also be
integrated in a veriety of different of ways.
In a typical RT-7000 installation RF Antennas are connected to J102, J103 and
J104. When looking over the module relationship to the connectors, you will find that
the module in slot 1, RT1, will be connected to J102. This will continue to J103 being
connected to RT2, and J104 connected to RT3. When configuring a radio that features
multiple modules that are of a different type, the modules will be positioned into the
RT-7000’s frame in the following order. Cobham widebands will be positioned into the
first available slots, followed by the APXs, then SARs. Starting from the top postion,
RT1.
Audio Inputs, Audio Outputs, Discretes, and RS422 signals are connected to
Aircraft Interface connector J101. Power is provided via 28 VDC aircraft power and is
connected to J105. The detailed signal functionality of these connectors are
respectively outlined in Table 7-1 and Table 7-3. Finally an optional APM, Aircraft
Personality Module, can be mounted to connector J108 to maintain aircraft specific
configurations. The Ethernet connector J106 is reserved exclusively for Factory
Acceptance Test and should be capped when the radio is installed in an aircraft. The
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COBHAM RT-7000 PMR Specifications

General

Brand	COBHAM
Model	RT-7000 PMR
Category	Radio
Language	English