RTS DV 2400 Series, Руководство по обслуживанию

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DV-2400
29
ADJUSTMENT
Transmitter section
Item Condition
Measurement Adjustment Specifications
/Remarks Test equipment Terminal Parts Method
9. 2- Tone
deviation
1) CH : TX center (Wide/Narrow)
2) LPF:15kHz
3) HPF:OFF
4) Transmit
Modulation
analyzer or linear
detector
(LPF15kHz)
Oscilloscope
AG
AF. V. M
ANT
MIC
Encoder
Knob
±
3kHz (Wide)
±
1.5kHz (Narrow)
±150Hz
±100Hz
10. 5- Tone
deviation
1) CH : TX center (Wide/Narrow)
2) LPF:15kHz
3) HPF:OFF
4) Transmit
±
3kHz (Wide)
±
1.5kHz (Narrow)
±150Hz
±100Hz
11. CTCSS
deviation
1) CH : TX low (Wide)
CH : TX center (Wide/Narrow)
CH : TX high (Wide)
2) Transmit
Modulation analyzer
or Linear detector
(LPF : 3kHz)
Oscilloscope
±
0.7kHz (Wide)
±
0.35kHz (Narrow)
±200Hz
±100Hz
10. DCS
deviation
1) CH : TX low (Wide)
CH : TX center (Wide/Narrow)
CH : TX high (Wide)
2) Transmit
±
0.7kHz (Wide)
±
0.35kHz (Narrow)
±150Hz
±100Hz
11. DTMF
deviation
1) CH : TX center (Wide/Narrow)
2) Transmit
±
3.0 kHz (Wide)
±
1.5kHz (Narrow)
±100Hz
Receiver Section
Item Condition
Measurement Adjustment Specifications
/Remarks Test equipment Terminal Parts Method
1. Sensitivity 1) CH : RX low (Wide/Narrow)
CH : RX center (Wide/Narrow)
CH : RX high (Wide/Narrow)
2) SSG output:
: –121dBm (0.2
μ
V ) (Wide)
: –119dBm (0.25
μ
V ) (Narrow)
Mod : 1kHz
Dev :
±
3.0kHz (Wide)
Dev :
±
1.5kHz (Narrow)
SSG
Oscilloscope
AF V.M
Distortion meter
ANT
EXT. SP
Check SINAD:
12dB or higher
2. Squelch 20 1) CH : RX low (Wide)
CH : RX center (Wide/Narrow)
CH : RX high (Wide)
2) SSG output:
: –113dBm (0.501
μ
V ) (Wide)
: –110dBm (0.707
μ
V ) (Narrow)
Mod : 1kHz
Dev :
±
3.0kHz (Wide)
Dev :
±
1.5kHz (Narrow)
Encoder
knob
Adjust to open the
squelch
3. Squelch 1 1) CH : RX low (Wide)
CH : RX center (Wide/Narrow)
CH : RX high (Wide)
2) SSG output:
: –123dBm (0.158
μ
V ) (Wide)
: –122dBm (0.178
μ
V ) (Narrow)
Mod : 1kHz
Dev :
±
3.0kHz (Wide)
Dev :
±
1.5kHz (Narrow)