Kenwood KCH-16 Service Manual page 54

KCH-16
Item Condition
• Narrow 3) Adj item: [N SQON]
Adjust: [ *** ]
SSG output
: 12dB SINAD level –3dB
(MOD: 1kHz/±1.5kHz)
8. Squelch 1) Adj item: [W SQTW]
(Tight) adjust Adjust: [ *** ]
• Wide 2) Adj item: [WL SQTW]→
[WC SQTW]→[WH SQTW]
Adjust: [ *** ]
SSG output
: 12dB SINAD level +5dB
(MOD: 1kHz/±3kHz)
• Narrow 3) Adj item: [N SQTN]
Adjust: [ *** ]
SSG output
: 12dB SINAD level +6.5dB
(MOD: 1kHz/±1.5kHz)
9. BER (Bit [Panel test mode]
Error Rate) 1) CH-sig: 1-20
check SSG output
: –117dBm (0.32µV)
(C4FM)
(1011Hz Tone Test Pattern)
54
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear ANT Front
AF VTVM panel EXT.SP panel
Oscillo-
scope
Digital ra-
dio tester
Adjustment
Parts Method
[Orange] After input signal After adjusting SQL, check
from SSG, press SQL open/Close.
[Orange] key. [Panel test mode]
That numeric will be 1) CH-Sig: 1-1
stored in memory.
2) CH-Sig: 2-1
3) CH-Sig: 2-1
After adjusting SQL, check
SQL open/close.
[Panel test mode]
1) CH-Sig: 1-1
2) CH-Sig: 2-1
3) CH-Sig: 3-1
After adjusting SQL, check
SQL open/close.
[Panel test mode]
1) CH-Sig: 1-1
2) CH-Sig: 2-1
3) CH-Sig: 3-1
Check 5% or less
Specifi cations / Remarks
SSG 12dB SINAD or less
: Open
SSG –130dBm (0.07µV)
: Close
SSG 12dB SINAD or less
: Open
SSG –130dBm (0.07µV)
: Close
SSG 12dB SINAD or less
: Open
SSG –130dBm (0.07µV)
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAND level –4dB
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAD level –4dB
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAD level –4dB
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAND level –4dB
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAD level –4dB
: Close
SSG 16dB SINAD or more
: Open
SSG 12dB SINAD level –4dB
: Close