TM-471A
21
Table 1
Adjustment items, display and test frequency list
ADJUSTMENT
Adjustment Item
Adjustment
On the
Note
TX (MHz) RX (MHz) TX (MHz) RX (MHz)
Signalling
Frequency Point
Display
C
C2
Frequency Tune
Center
415.10
415.05
460.10
460.05
TX High Power
Low
“H” icon appear
400.10
400.05
440.10
440.05
Low’
407.60
407.55
450.10
450.05
Center
415.10
415.05
460.10
460.05
High’
422.60
422.55
470.10
470.05
High
429.90
429.95
479.90
479.95
TX Low Power
Low
“L” icon appear
400.10
400.05
440.10
440.05
Low’
407.60
407.55
450.10
450.05
Center
415.10
415.05
460.10
460.05
High’
422.60
422.55
470.10
470.05
High
429.90
429.95
479.90
479.95
DCS Balance
Low
“DCS” icon appear
400.10
400.05
440.10
440.05
DCS : 023N
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
DCS Balance (Narrow)
Center
“DCS” and “N” icons appear
415.10
415.05
460.10
460.05
Max Deviation
Low
400.10
400.05
440.10
440.05
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
Max Deviation (Narrow)
Center
“N” icon appear
415.10
415.05
460.10
460.05
CTCSS Fine Deviation
Low
“CT” icon appear
400.10
400.05
440.10
440.05
CTCSS : 88.5Hz
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
CTCSS Fine Deviation (Narrow)
Center
“CT” and “N” icon appear
415.10
415.05
460.10
460.05
DCS Fine Deviation
Low
“DCS” icon appear
400.10
400.05
440.10
440.05
DCS : 023N
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
DCS Fine Deviation (Narrow)
Center
“DCS” and “N” icons appear
415.10
415.05
460.10
460.05
DTMF Fine Deviation
Center
415.10
415.05
460.10
460.05
DTMF : 9
DTMF Fine Deviation (Narrow)
Center
“N” icon appear
415.10
415.05
460.10
460.05
Band Pass Tuning
Low
“BUSY” icon appear
400.10
400.05
440.10
440.05
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
Squelch Tight
Low
400.10
400.05
440.10
440.05
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
Squelch Tight (Narrow)
Center
“N” icon appear
415.10
415.05
460.10
460.05
Squelch Open
Low
400.10
400.05
440.10
440.05
Center
415.10
415.05
460.10
460.05
High
429.90
429.95
479.90
479.95
Squelch Open (Narrow)
Center
“N” icon appear
415.10
415.05
460.10
460.05
S-Meter S1 Level
Center
415.10
415.05
460.10
460.05
S-Meter Full Level
Center
415.10
415.05
460.10
460.05