Icom ID-31A

5 - 6
• TONE DEVIATION ADJUSTMENTS
Select an adjustment item using
/
, and then set the adjustment value as specifi ed using [DIAL].
ADJUSTMENT
ADJUSTMENT
ITEM
OPERATION VALUE
TONE DEVIATION
–
1 1) Set the power supply voltage to 7.4 V.
2) Connect a modulation analyzer to the antenna connector through
an attenuator, and then set it as;
HPF : OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P-P)/2
3) No audio signal is applied.
–
[DTCS]
(FM)
[MDT]
2• While transmitting, adjust the deviation using [DIAL], and then
push [ENT] to store the adjustment value.
±0.7 to ±0.8 kHz
(FM-N)
±0.325 to
±0.425 kHz
[CTCSS]
(FM)
[MCT]
3
±0.7 to ±0.8 kHz
(FM-N)
±0.325 to
±0.425 kHz
[DTMF]
(FM)
[MDM]
4
±3.4 to ±3.6
kHz
(FM-N)
±1.65 to ±1.85
kHz
[EURO TONE]
(FM)
[MET]
5 ±3.4 to ±3.6
kHz
(FM-N)
±1.65 to ±1.85
kHz
5-3 TRANSMIT ADJUSTMENT (Continued)