Icom IC-F6220D Service Manual page 19

6-3 TRANSMIT ADJUSTMENTS (continued)
1) Select an adjustment item using [↑]/[↓] on the PC's keyboard.
2) Set or modify the adjustment value as specifi ed using [←]/[→] on the PC's keyboard, then push [ENTER].
TRANSCEIVER'S
ADJUSTMENT
CONDITION
DIGITAL 1 • Set [TX MODE] to "16 (Digital Max Amp 600Hz Sin Wave)" on
DEVIATION the "Adjust Utility" screen.
(Band Low)
2 • Push [ENTER] on the PC's keyboard, to enter the digital
deviation adjustment mode.
3 • Channel
• Transmitting
(Band Center) 4 • Channel
• Transmitting
(Band High) 5 • Channel
• Transmitting
6 • Push [ENTER] on the PC's keyboard, to store the value and quit
the digital deviation adjustment mode.
CTCSS 1 • Channel
DEVIATION • Transmitting
DTCS 1 • Channel
DEVIATION • Transmitting
REFERENCE 1 • Channel
FREQUENCY • Transmitting
*; [Low band] versions.
**; [High band] versions.
***; [350 MHz band] versions.
OPERATION
: 1-15 • Connect a modulation analyzer to
the antenna connector, through an
attenuator, and set it as;
: 1-16
HPF
LPF
: 1-17
De-emphasis : OFF
Detector
: 1-18 1) Set the TX Mode to "3" on the "Adjust
Utility" screen.
2) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in
the "DIGITAL DEVIATION" above.
: 1-19 1) Set the TX Mode to "4" on the "Adjust
Utility" screen.
2) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as described in
the "DIGITAL DEVIATION" above.
: 1-20 • Loosely couple a frequency counter to
the antenna connector.
6 - 7
ADJUSTMENT
: OFF
: 15 kHz
: (P–P)/2
VALUE
ITEM
16
[TX MODE] (Digital Max Amp
600Hz Sin Wave)
[MOD D Start] –
±1.37 ±0.02 kHz
[MOD D L]
[MOD D C]
[MOD D H]
[MOD D Start] –
±0.35 ±0.05 kHz
[CTCSS]
[DTCS]
470.000000 MHz*
520.000000 MHz**
[REF]
400.000000 MHz***
(±200 Hz)