Kenwood KCH-16, Руководство по обслуживанию

Страница: 44 / 85

KCH-16
44
ADJUSTMENT
TK-5710/5710H Receiver Section
Item Condition
Measurement Adjustment
Specifi cations / Remarks
Test-
equipment
Unit Terminal Unit Parts Method
1. RX
Front-end
adjust [Panel tuning mode]
1) Adj item: [W FEND]
Adjust: [***]
2) Adj item: [WL FEND]
→
[WLC FEND] → [WC FEND] →
[WCH FEND] → [WH FEND]
SSG Rear
panel ANT Front
panel [B],[C] Enter the following
adjustment values
to the transceiver by
pressing [B] and [C]
keys.
[WL FEND]: 190
[WLC FEND]: 160
[WC FEND]: 110
[WCH FEND]: 65
[WH FEND]: 10
After setting the
adjustment value,
press [Orange] key.
The adjustment
value will be stored
in memory.
Note: After replacing the EE-
PROM (IC701) align RX Front-
end.
2. RSSI
(Reference)
adjust
• Wide 1) Adj item: [W RSSI]
Adjust: [***]
2) Adj item: [WL RSSI]
→
[WC RSSI] → [WH RSSI]
Adjust: [***]
SSG output: –125dBm (0.126µV)
(MOD: 1kHz/±3kHz)
SSG
AF VTVM
Oscillo-
scope Rear
panel ANT
EXT.SP Front
panel [Orange] After input signal
from SSG, press
[Orange] key.
That numeric will be
stored in memory.
• Narrow 3) Adj item: [N RSSI]
Adjust: [***]
4) Adj item: [NL RSSI]
→
[NC RSSI] → [NH RSSI]
Adjust: [***]
SSG output: –125dBm (0.126µV)
(MOD: 1kHz/1.5kHz)
• P25 5) Adj item: [A RSSI]
Adjust: [***]
6) Adj item: [AL RSSI]
→
[AC RSSI]
→
[AH RSSI]
Adjust: [***]
SSG output: –125dBm (0.126µV)
3. RSSI
(–120dBm)
adjust
• Wide 1) Adj item: [W LRSI]
Adjust: [***]
2) Adj item: [WL LRSI]
→
[WC LRSI] → [WH LRSI]
Adjust: [***]
SSG output: –120dBm (0.22µV)
(MOD: 1kHz/±3kHz)
• Narrow 3) Adj item: [N LRSI]
Adjust: [***]
4) Adj item: [NL LRSI]
→
[NC LRSI]
→
[NH LRSI]
Adjust: [***]
SSG output: –120dBm (0.22µV)
(MOD: 1kHz/±1.5kHz)
• P25 5) Adj item: [A LRSI]
Adjust: [***]
6) Adj item: [AL LRSI]
→
[AC LRSI]
→
[AH LRSI]
Adjust: [***]
SSG output: –120dBm (0.22µV)