Transmit Adjustment - Icom IC-F4029TDR Service Manual Addendum

5-3 TRANSMIT ADJUSTMENT

Select an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC's keyboard.
ADJUSTMENT
TRANSMIT 1 • Channel
OUTPUT • Transmitting
POWER
[Power (Hi)]
1 • Channel
FM
• Connect an audio generator to the JIG
DEVIATION
cable and set as;
[MOD]
Frequency
Level
• Transmitting
MODULATION 1 • Channel
BALANCE • No audio applied to the JIG cable.
[BAL]
• Set an FM deviation meter same as;
HPF
LPF
De-emphasis
Detector
• Set the FM deviation meter to same condi-
tion as "FM DEVIATION."
• Transmitting
1 • Mode preset
DIGITAL
DEVIATION
[Dig MOD]
2 • Channel
• Set the FM deviation meter to same condi-
tion as "FM DEVIATION."
• Transmitting
1 • Channel
CTCSS/DTCS
• No audio applied to the JIG cable.
DEVIATION
• Set the FM deviation meter to same condi-
[CTCSS/DTCS]
tion as FM DEVIATION."
• Transmitting
ADJUSTMENT CONDITION
: 1-1
: 1-1
: 1.0 kHz
: 150 mV rms
: 1-2
: OFF
: 20 kHz
: OFF
: (P–P)/2
[Digital Mode] : 7
: 1-4
: 1-3
MEASUREMENT
UNIT OPERATION
PA-C Connect an RF power meter to
UNIT the RF connector (PA-C UNIT;
J701).
PA-C Connect the FM deviation meter
UNIT to RF connector (PA-C UNIT;
J701) through an attenuator.
PA-C Connect the FM deviation meter
UNIT to the RF connector (PA-C UNIT;
J701) through an attenuator.
PA-C Connect an FM deviation meter to
UNIT RF connector (PA-C UNIT; J701)
through an attenuator.
PA-C Connect an FM deviation meter to
UNIT RF connector (PA-C UNIT; J701)
through an attenuator.
5 - 5
VALUE
0.50 W
±2.05 to ±2.15 kHz
Set to square wave form
±1.39 to ±1.43 kHz
±0.33 to ±0.37 kHz