Kenwood TK-270G - Manual (Page 39)

TK-260G/270G
39
ADJUSTMENT
Item Condition
Measurement Adjustment Specifications/
Test equipment Terminal Parts Method Remark
1. Sensitivity Adj item [SENS] DVM Encoder knob f L : ([S
.
E N S]) : [88]
Adjustment Adjust [
∗∗∗
] f C : (S
.
E
.
N
.
S) : [134]
f
L
f
c
f
H
[S
.
E N S] ➞ [S
.
E
.
N
.
S] ➞ [S
.
E
.
N
.
S
. .
] f H : (S
.
E
.
N
.
S
. .
) : [180]
PTT : ON
2. BPF (PANEL TEST MODE) Tracking generator ANT L305, L306, L307 Adjust wave form
CH-Sig 2-1 spectrum analyzer to figure 1.(f
L
)
Tra-G setting -40dBm BPF
CH-Sig 1-1 Check wave form to figure 2.(f C )
CH-Sig 3-1 Check wave form to figure 1.(f
H
)
3. Sensitivity [Panel Test Mode] SSG ANT
Check 1) CH-Sig:1-1 AF VTVM Check 12dB SINAD or
SSG OUT Oscilloscope more
Wide:-117dBm (0.3
µ
V)
(MOD:1kHz / ± 3kHz)
Narrow:-117dBm (0.3 µ V)
(MOD:1kHz /
±
1.5kHz)
4. Squelch (open) 1) Adj item [SQL3] Encoder Adjust to the
Adjust Adjust [ ∗∗∗ ] knob squelch
(Wide) SSG OUT: squelch. threshold point
-124dBm (0.14
µ
V)
2) Adj item [SQL3.]
(Narrow) Adjust [
∗∗∗
]
-124dBm (0.14
µ
V)
5. Squelch(Tight) 1) Adj item [SQL9] Adjust to the
Adjust Adjust [ ∗∗∗ ] squelch
[Wide] SSG OUT:-117dBm (0.3
µ
V) threshold point
[Narrow] 1) Adj item [SQL9.]
SSG OUT:-117dBm (0.3 µ V)
6. Squelch [Panel Test Mode] Check Squelch must
Check 1) CH-Sig:1-1 be opened.
SQ Level:[SQL5]
SSG OUT:
-118dBm (0.28
µ
V)
2) SSG OUT:OFF Squelch must
be closed.
BPF-WAVE
Fig. 1 Fig. 2
f L f H f C