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TK-260G/270G
39
ADJUSTMENT
Item Condition
Measurement Adjustment
Specifications/
Test equipment
Terminal Parts Method
Remark
1. Sensitivity Adj item [SENS] DVM Encoder knob fL : ([S.E N S]) : [88]
Adjustment Adjust [∗∗∗] fC : (S.E.N.S) : [134]
fL fc fH
[S.E N S] ➞ [S.E.N.S] ➞ [S.E.N.S. .]fH : (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.(fL)
Tra-G setting -40dBm BPF
CH-Sig 1-1 Check wave form to figure 2.(fC)
CH-Sig 3-1 Check wave form to figure 1.(fH)
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 (0.3µV)
(MOD:1kHz / ±3kHz)
Narrow:-117dBm (0.3µV)
(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 (0.14µV)
2) Adj item [SQL3.]
(Narrow) Adjust [∗∗∗]
-124dBm (0.14µV)
5.
Squelch(Tight)
1) Adj item [SQL9]
Adjust to the
Adjust Adjust [∗∗∗] squelch
[Wide]
SSG OUT:-117dBm (0.3µV)
threshold point
[Narrow] 1) Adj item [SQL9.]
SSG OUT:-117dBm (0.3µV)
6. Squelch [Panel Test Mode] Check Squelch must
Check 1) CH-Sig:1-1 be opened.
SQ Level:[SQL5]
SSG OUT:
-118dBm (0.28
µV
)
2) SSG OUT:OFF Squelch must
be closed.
BPF-WAVE
Fig. 1
Fig. 2
fL fH
fC