AUDIOLINE POWER PMR 40 Manual de usuario descargar pdf (Pagina 8)

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Examples of Configurations 7000 series:

The 7000 series VHF/AM radio system includes separate Receiver (RX) and Transmitter (TX) modules

(Fig. 1). Each module has facilities for being connected to other modules as a part of a main/standby

chain, and as a transceiver configuration.

TR-7550 / TR-7525 / TR-7510

Receiver

RA-7202

Transmitter

TA-7450/25/10

PSU

Fig. 1

The radio units have a built-in coaxial relay for antenna switching, an Alarm output and a Select input

for automatic and/or manual main/standby selection.

In addition the transmitters have a Key/Mute output used to mute associated receivers during

transmitting periods.

The antenna is connected to the transmitters antenna output and routed via a built-in coaxial relay to

the transmitters antenna output.

From there a coaxial cable connect the antenna to the receivers antenna input.

When the transmitter is not keyed the coaxial relay will switch the antenna to the TX antenna output

and from there to the connected receiver.

When a key signal is applied to the transmitter the coaxial relay will switch the antenna to the

transmitter output. The same key signal is used to mute the receiver during transmission.

The audio line is connected in parallel to the transmitter and receiver.

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AUDIOLINE POWER PMR 40 Manual de usuario Pagina 8