Nikon RADIUS CM200 Bedienungsanleitung PDF herunterladen (Seite 38)

3-2 TRANSCEIVER PERFORMANCE TESTING

3.0 RF Test Mode

When the radio is operating in its normal environment, it is not possible to test all individual aspects

of the transmitter and receiver performance. Therefore a special “test mode” is used to allow the

service technician to perform certain functional tests on the product. A control head fuctional test

mode is also available.

To enter test mode (display radios):

1. Turn the radio on.

2. Within ten seconds after the self test is complete, press button P2, five times in succession.

3. Channel number appears in the display. The radio is on channel XX*, carrier squelch mode,

25 kHz channel spacing.

4. Each additional press of P2 scrolls through to the next channel spacing and a corresponding

set of tones are sounded.

5. Pressing P1 scrolls through and accesses test environments as shown in Table 3-2.

6. Pressing P2 for three seconds switches the radio to the control head test mode and zero

appears on the display.

7. Pressing P1 causes the radio to display the channel number “1”. Another P1 press causes

the radio to display the next channel “2”, and so on until channel “9”.

8. Pressing P1 at the end of the LCD test activates the ‘LED Test’. The next P1 press turns the

LEDs and dot On/Off.

9. Pressing P1 at the end of the LED test activates the button test. Pressing any button (except

P1) or any keypad button during the LCD test or Icon test immediately activates this test.

10. Pressing P2 for 3 seconds in the control head test mode causes the radio to return to the RF

test mode.

*XX = channel number (01 - 06)

Table 3-2 Test Environments

No. of

Beeps

Description Function

1 Carrier Squelch RX: if carrier detected

TX: mic audio

1Tone

Private-Line

RX: unsquelch if carrier and tone (192.8H z) detected

TX: mic audio + tone (192.8 Hz)

2 Digital

Private-Line

RX: unsquelch if carrier and digital code (131) detected

TX: mic audio + digital code (131)

3Dual-Tone

multiple

frequency

RX: unsquelch if carrier detected

TX: selected DTMF tone pair

9 MDC1200

HSS

RX: unsquelch if carrier detected

TX: 1500 Hz tone

5 Unsquelch

Open

RX: constant unsquelch

TX: mic audio

11 CMP RX: if carrier detected

TX: mic audio

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 69 70

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