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Installation
RT4722
2.10 Test Procedure TX/RX DSC Call
To test the system’s DSC functionality, enter the function menu and perform two test calls: (INTernal test) and
(EXTernal test).
Internal test call: (The call is looped back internally, no activation of transmitter or receiver)
This test controls the DSC modem in the transceiver RX and TX internally.
1. Hook off handset.
2. Enter function menu: Func\dsc\testcalls\int path. Select call by “arrow right” key.
3. “Transmit” the call by keying “Send call”.
4. The display will show in sequence: TX-CALL, TX-OK.
5. The call is announced by the DSC modem. Read the call info in RX-LOG.
External test call: (The call is transmitted and received using the aerials).
This test also controls the hardware of transmitter and receiver boards.
1. Hook off handset.
2. Enter function menu: Func\dsc\testcalls\ext path. Select call by “arrow right” key.
3. “Transmit” the call by keying “Send call”.
4. The display will show in sequence: TX-CALL, TX-OK.
5. The call is announced by the DSC modem. Read the call info in RX-LOG.
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