After The Adjustment - Icom IC-F2000 Service Manual

4-4 RECEIVE ADJUSTMENTS (CONTINUED)
1) Select an adjustment item using [↑]/[↓]/[←]/[→] on the PC's keyboard.
2) Set or modify the adjustment value as specified using [Space]/[Back Space] on the PC's keyboard.
TRANSCEIVER'S
ADJUSTMENT
RX SIGNAL-TO- 7 • CH No.: 47
NOISE RATIO • Receiving
- Verification -
Middle* 4
(Band low)
(Band center) 8 • CH No.: 48
• Receiving
(Band high) 9 • CH No.: 49
• Receiving
HOWLING 1 • CH No.: 42
- Verification - • Receiving
FLOWING 1 • CH No.: 42
CURRENT • Receiving
- Verification -
( At maximum
audio output)
(At stand-by) 2
No verification is necessary for [USA].
3
*
No verification is necessary for [USA] and [AUS].
* 4
†
The output level of the standard signal generator (SSG) is measured at the load end (PD).

4-5 AFTER THE ADJUSTMENT

After adjusting, write back the programming data (described in ■ SAVE THE PROGRAMMING DATA).
CONDITION
• Set the SSG as:
Frequency:
[400~470 MHz versions]
[450~512/520 MHz versions]
Deviation:
• Set the SSG as:
Frequency:
[400~470 MHz versions]
[450~512/520 MHz versions]
• Set the SSG as:
Frequency:
[400~470 MHz versions]
[450~512/520 MHz versions]
• Connect the SSG to the antenna
connector, and set it as:
Frequency:
[400~470 MHz versions]
[450~512/520 MHz versions]
:
†
Level
Modulation: OFF
• Disconnect any JIG cable from
[SP].
• Set [VOL] to the maximum
clockwise position.
• Connect the ammeter between
the transceiver and the DC power
supply.
• Set the SSG as:
Frequency:
[400~470 MHz versions]
[450~512/520 MHz versions]
:
Level †
Modulation: 1 kHz
Deviation:
• Set [VOL] to the maximum
clockwise position.
– • Disconnect any test instruments
from the antenna connector, [SP],
and [MIC].
• Verify that the squelch is closed.
OPERATION
400.050 MHz
450.050 MHz
±2.4 kHz
435.050 MHz
485.050 MHz
469.950 MHz
519.950 MHz
435.050 MHz
485.050 MHz
+60 dBµ (–47 dBm)
435.050 MHz
485.050 MHz
+60 dBµ (–47 dBm)
±1.5 kHz
4-19
ADJUSTMENT
VALUE
ITEM
– More than 38 dB
– No howling occurs
– Less than 400 mA
Less than 95 mA