Alinco DJ-596E, Руководство по обслуживанию

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31
UHF narrow deviation adjustment
1. In the adjustment mode, select channel 19 by rotating the main tuning dial.
2. Input a 50mVrms, 1kHz signal with your transceiver tester through the
external microphone jack.
3. With the tester, put the transceiver in the transmission mode.
4. Rotate the VR4 on the printed-circuit board of the transceiver until the
deviation is set to 2.2kHz.
Channel frequency used in the test mode
Frequency (MHz) Memory
Channel
Channel Function
T E
20 DTMF (1) 145 145
21 DTMF (D) 145 145
22 Tone 67Hz 145 145
23 Tone 88.5Hz 145 145
24 Tone 250.3Hz 145 145
25 DCS code 255 145 145
26 Tone Burst test 145 145
27 Digital mode deviation
∗
∗ :
Required if EJ-43U is installed.
145 145
DTMF (1) test
This function is only for checking the DTMF code, not adjusting it.
1. In the adjustment mode, select channel 20 by rotating the main tuning dial.
2. Press the key. DTMF code “1” is automatically sent and you will
hear the monitoring tone from the speaker.
3. Check the deviation with the transceiver tester, and make sure the deviation
level is within 2.1 to 3.7kHz range.
DTMF (D) test
1. In the adjustment mode, select channel 21 by rotating the main tuning dial.
2. Press the key. DTMF code “D” is automatically sent and you will
hear the monitoring tone from the speaker.
3. Check the deviation with the transceiver tester, and make sure the deviation
level is within 2.1 to 3.7kHz range.
Tone 67Hz test
This function is only for checking the tone encoder, not adjusting it.
1. In the adjustment mode, select channel 22 by rotating the main tuning dial.
2. Press the key. A 67Hz tone is automatically sent.
3. Check the deviation with the transceiver tester, and make sure the deviation
level is within 0.4 to 1.2kHz range.