Frequency Adjustment; Transmit Adjustments - Icom IC-2730A Service Manual

5-2 FREQUENCY ADJUSTMENT

Select an adjustment item using [DUP MONI]/[LOW DTMF], and then set the adjustment value as specifi ed using [DIAL].
ADJUSTMENT
ADJUSTMENT
REFERENCE
FREQUENCY
[Left band]
[Right band]

5-3 TRANSMIT ADJUSTMENTS

Select an adjustment item using [DUP MONI]/[LOW DTMF], and then set the adjustment value as specifi ed using [DIAL].
ADJUSTMENT
ADJUSTMENT
TRANSMIT POWER
-VHF-
(Hi power)
[BAND LOW]
[BAND HIGH]
(Mid power)
[PL] (MID)
[BAND LOW]
[BAND HIGH] [PH] (MID)
(Low power)
[PL] (LOW)
[BAND LOW]
[PH] (LOW)
[BAND HIGH]
-UHF-
(Hi power)
[BAND LOW]
[BAND HIGH]
(Mid power)
[PL] (MID)
[BAND LOW]
[BAND HIGH] [PH] (MID)
(Low power)
[PL] (LOW)
[BAND LOW]
[BAND HIGH] [PH] (LOW)
DEVIATION
-LEFT BAND-
(BAND LOW)
[FM]
[FM-N] [dE] (NAR)
(BAND CENTER)
[FM]
[FM-N] [dE] (NAR)
(BAND HIGH)
[FM]
[FM-N] [dE] (NAR)
-RIGHT BAND-
(BAND LOW)
[FM]
[FM-N] [dE] (NAR)
(BAND CENTER)
[FM]
[FM-N] [dE] (NAR)
(BAND HIGH)
[FM]
[FM-N] [dE] (NAR)
ITEM
1 1) Connect a power meter or dummy load to the antenna connec-
tor.
2) Loosely couple a frequency counter to the antenna connector.
[rEF]
3) While transmitting, adjust the frequency using [DIAL], and then
2
push [MW] to store the adjustment value.
ITEM
1 1) Connect an RF power meter to the antenna connector.
2) While transmitting, adjust the TX power using [DIAL], and then
[PL]
push [MW] to store the adjustment value.
[PH] 2
3
4
5
6
7
[PL]
[PH] 8
9
10
11
12
1 1) Connect a modulation analyzer to the antenna connector through
an attenuator, and set it as;
[dE]
HPF:
LPF:
2
De-emphasis: OFF
Detector:
3
[dE]
2) Connect an audio generator to the JIG cable, and then set it as:
Frequency:
4
Level:
5
[dE]
3) While transmitting, adjust the deviation using [DIAL], and then
6
push [MW] to store the adjustment value.
7
[dE]
8
9
[dE]
10
11
[dE]
12
OPERATION
OPERATION
OFF
20 kHz
(P-P)/2
1 kHz
20 mVrms (Except [USA] version)
80 mVrms ([USA] version)
5-3
VALUE
146.000 MHz
440.000 MHz
VALUE
50 W
15 W
(22 W [TPE-01])
5 W
50 W
15 W
(22 W [TPE-01])
5 W
±4.2 kHz
±2.1 kHz
±4.2 kHz
±2.1 kHz
±4.2 kHz
±2.1 kHz
±4.2 kHz
±2.1 kHz
±4.2 kHz
±2.1 kHz
±4.2 kHz
±2.1 kHz