Kenwood TK-3148, Service Manual

Page: 48 / 74

TK-3148
48
ADJUSTMENT
Item Condition
Measurement Adjustment
Specifi cations / Remarks
Test-
equipment
Unit Terminal Unit Parts Method
4. RSSI (Low)
Adjust
[Narrow]
1) Adj item [LRSI]
Adjust
[***]
SSG output
: 12dB SINAD level
SSG
AF VTVM
Oscilloscope Panel ANT
Universal
connector Panel Encoder
knob
Squelch After input signal
from SSG, press [B]
key.
That numeric will be
stored in memory
2) Adj item
[L
LRSI] → [C LRSI] →
[H LRSI]
Adjust [***]
[Wide] 3) Adj item [w LRSI]
Adjust
[***]
SSG output
: 12dB SINAD level
4) Adj item
[wL
LRSI]
→
[wC LRSI]
→
[wH LRSI]
Adjust [***]
5. Squelch
(Preset)
Check [Panel Test Mode]
1) CH-Sig: 1-1
SSG
output
: 12dB SINAD level
Check Squelch must be opened.
2) SSG output: OFF Squelch must be closed.
6. RSSI (High)
Adjust
[Narrow] 1) Adj item [HRSI]
Adjust
[***]
SSG output: –70dBm (70.7µV)
Panel Encoder
knob
Squelch After input signal
from SSG, press [B]
key.
That numeric be
stored in memory
2) Adj item
[L
HRSL] → [C HRSL] →
[H HRSL]
Adjust [***]
[Wide] 3) Adj item
[wL
HRSL] → [wC HRSL] →
[wH HRSL]
Adjust [***]
Adjustment points
TX-RX unit (X57-6413-01) (A/3)
Foil side view
TC2
ANT
BPF
CV
TC1