Kenwood NX-5900 Service Manual page 69

4.10 Receiver Section
Item Condition
Panel tuning mode
1. [Panel test mode]
AF level 1) CH-Sig: 1-1
setting SSG output:
-47dBm (1mV)
(MOD: 1kHz/
±1.5kHz)
2. RSSI 1) Adj item:
refer- [An RRSSI]
ence Adjust:[***]
[Analog 2) Adj item:
Narrow] [700M RX/TA
Low]→
[700M RX/TA
Center]→
[700M RX/TA
High]→
[800M RX/TA
Low]→
[800M RX/TA
Ceter]→
[800M RX/TA
High]
SSG output:
12dB SINAD level
-3dB
(MOD: 1kHz/
±1.5kHz)
3. Open 1) Adj item:
Squelch [Aw SQL]
[Analog Adjust:[***]
Wide 2) Adj item:
5k] [700M RX/TA
Low]→
[700M RX/TA
Center]→
[700M RX/TA
High]→
[800M RX/TA
Low]→
[800M RX/TA
Ceter]→
[800M RX/TA
High]
SSG output:
12dB SINAD level
-3dB
(MOD: 1kHz/
±3kHz)
Measurement
PC test mode Test-
equip-
ment
1) Test Channel SSG
Channel: 1 DVM
Test Signaling AF VM
Mode: Analog Dummy
Signaling: 1 load
SSG output:
-47dBm (1mV)
(MOD:1kHz/
±1.5kHz)
1) Adj item: SSG
[RSSI Reference Distor-
(Analog Narrow)] tion
2) Adj item: meter
[Frequency: Oscil-
700 MHz Band] loscop
[RX/TA Low]→
[RX/TA Center]→
[RX/TA High]
[Frequency:
800MHz Band]
[RX/TA Low]→
[RX/TA Ceter]→
[RX/TA High]
SSG output:
12dB SINAD level
-3dB
(MOD: 1kHz/
±1.5kHz)
1) Adj item: SSG
[Open Squelch Distor-
(Analog Wide 5k)] tion
2) Adj item: meter
[Frequency: Oscil-
700 MHz Band] loscop
[RX/TA Low]→
[RX/TA Center]→
[RX/TA High]
[Frequency:
800MHz Band]
[RX/TA Low]→
[RX/TA Ceter]→
[RX/TA High]
SSG output:
12dB SINAD level
-3dB
(MOD: 1kHz/±3kHz)
Unit Ter- Unit Parts
minal
Panel ANT Panel [Panel
Ext. tuning
SP mode]
con- [+], [-]
nector [PC
test
mode]
[←],
[→]
Panel ANT Panel
Ext.
SP
con-
nector
Panel ANT Panel
Ext.
SP
con-
nector
Adjustment
Method
Volume Up/Down knob to
obtain 1.41V AF output.
(0.5W @ 4Ω load)
[Panel tuning mode]
After input signal from
SSG, press [ key to
store the adjustment val-
ue.
PC test mode]
After input signal from
SSG, press [Apply] button
to store the adjustment
value.
[Panel tuning mode]
After input signal from
SSG, press [ ] key to
store the adjustment val-
ue.
[PC test mode]
After input signal from
SSG, press [Apply] button
to store the adjustment
value.
(No.RA032<Rev.001>)1-69
Specifi-
cations
/Remarks
1.41V
±0.1V