Kenwood NX-411 Service Manual page 54

NX-411
Receiver Section
Item
Panel tuning mode
1. AF level [Panel test mode]
setting 1) CH-Sig : 1–1
SSG output:
–47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
Beat Shift: Uncheck
Compander: Uncheck
2. RSSI 1) Adj item:
Reference [An RRSSI]
*5 Adjust: [ ]
2) Adj item:
[AnL RRSSI] →
[Analog
[AnC RRSSI] →
Narrow]
[AnH RRSSI]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
[NXDN 1) Adj item: [Nv RRSSI]
Very Adjust: [ ]
Narrow] 2) Adj item:
[NvL RRSSI] →
[NvC RRSSI] →
[NvH RRSSI]
SSG output: 12dB
SINAD level for ana-
log Narrow –3dB
(MOD: 1kHz/±1.5kHz)
*5: Because RSSI Reference (NXDN Narrow) is adjusted by adjusting RSSI Reference (Analog Narrow), it is not necessary to adjust RSSI Reference
(NXDN Narrow).
3. Open 1) Adj item: [An SQL]
Squelch Adjust: [ ]
*6 2) Adj item:
[AnL SQL] →
[AnC SQL] →
[Analog
Narrow] [AnH SQL]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±1.5kHz)
[NXDN 1) Adj item: [Nv SQL]
Very Adjust: [ ]
Narrow] 2) Adj item:
[NvL SQL] →
[NvC SQL] →
[NvH SQL]
SSG output: 12dB
SINAD level for ana-
log Narrow –4dB
(MOD: 400Hz/±1.1kHz)
*6: Because Open Squelch (NXDN Narrow) is adjusted by adjusting Open Squelch (Analog Narrow), it is not necessary to adjust Open Squelch
(NXDN Narrow).
54
ADJUSTMENT
Condition
PC test mode
equipment
1) Test Channel SSG
Channel: 1 DVM
Test Signaling AF VM
Mode: Analog Dummy
Signaling: 1 load
Beat Shift: Uncheck
Compander: Uncheck
SSG output:
–47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
1) Adj item: [RSSI SSG
Reference (Analog AF VM
Narrow)] Oscilloscpoe
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
1) Adj item: [RSSI
Reference (NXDN
Very Narrow)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level for
analog Narrow
–3dB
(MOD: 1kHz/±1.5kHz)
1) Adj item: [Open SSG
Squelch (Analog AF VM
Narrow)] Oscilloscpoe
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level
(MOD: 1kHz/±1.5kHz)
1) Adj item: [Open
Squelch (NXDN
Very Narrow)]
2) Adj item: [Low],
[Center], [High]
SSG output: 12dB
SINAD level for
analog Narrow
–4dB
(MOD: 400Hz/±1.1kHz)
Measurement
Test-
Unit Terminal Unit
Panel ANT Panel Volume
Universal
connector
Panel ANT
Universal
connector
Panel ANT
Universal
connector
Adjustment
Specifi cations /
Parts Method
Turn the Volume 0.63V±0.1V
knob Knob to obtain
0.63V AF output.
[Panel tuning mode]
After input signal
from SSG, press
[ ] key to store the
adjustment value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
ment value.
Adjust with the ana-
log signal.
[Panel tuning mode] "Open Squelch"
After input signal will not be adjusted
from SSG, press correctly if MOD
[ ] key to store the and Deviation are
adjustment value. wrong.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
Adjust with the ana-
ment value.
log signal.
This item is ad-
justed under the
condition that MOD
is "400Hz" and De-
viation is "±1.1kHz"
due to the circuit
confi guration.
Remarks