Software (Transmit And Receive) - Icom iC-m34 Service Manual

5-3 SOFTWARE ADJUSTMENT (TRANSMIT and RECEIVE)
Select an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC's keyboard.
ADJUSTMENT
TRANSMIT NOTE: DO NOT put the cursor on [RF POWER (E-Low)] then push the [ENTER] key. Otherwise, "TRANSMIT
OUTPUT OUTPUT POWER" will not be adjusted properly.
POWER
1 • Operating CH.
[RF Power
• RF power
(High)]
• Transmitting
[RF Power 2 • Operating CH.
(A-High)] • RF power
• Transmitting
[RF Power 3 • Operating CH.
(Low)] • RF power
• Transmitting
FM DEVIATION 1 • Operating CH.
[MOD] • RF power
• Set the FM deviation meter as;
HPF
LPF
De-emphasis : OFF
Detector
• Connect an audio generator to the [SP MIC]
connector through the JIG cable, and set as;
• Transmitting
RECEIVE NOTE1: " RECEIVE SENSITIVITY " should be adjusted before " SQUELCH LEVEL. " Otherwise, " SQUELCH
SENSITIVITY
[BPF T1] NOTE2: DO NOT put the cursor on [BPF ALL] and [BPF2] then push the [ENTER] key. Otherwise, "RECEIVE
1 • Operating CH. : 16
• Connect an SSG to the antenna con-
nector and set as;
Frequency
Level
Modulation
Deviation
• Receiving
SQUELCH 1 • Operating CH. : 16
LEVEL • Connect an SSG to the antenna con-
[Noise] nector and set as;
Frequency
Level
Modulation
Deviation
• Receiving
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
ADJUSTMENT CONDITION
: 16
: High
: 16
: A-High
: 16
: Low
: 16
: Low
: OFF
: 20 kHz
: (P–P)/2
Frequency : 1 kHz
Level : 25 mV rms
LEVEL " will not be adjusted properly.
SENSITIVITY" will not be adjusted properly.
: 156.8000 MHz
: 20 dBµ* (–87 dBm)
: 1 kHz
: ±3.0 kHz
: 156.8000 MHz
: –4dBµ* (–111 dBm)
: 1 kHz
: ±3.0 kHz
OPERATION
Connect an RF power meter to the antenna
connector.
Connect an FM deviation meter to the
antenna connector through an attenuator.
Put the cursor on the [BPF T1], and push
the [ENTER] key on the keyboad of the
connected PC.
Put the cursor on the [Noise], and push
the [ENTER] key on the keyboad of the
connected PC.
5 - 5
VALUE
5.0 W
2.0 W
0.75 W
±4.30 to ±4.40 kHz
Automatic
adjustment
Automatic
adjustment