Receive Adjustment - Icom IC-F6220D Service Manual

Uhf digital transceiver
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6-4 RECEIVE ADJUSTMENTS
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
RX SENSITIVITY 1 NOTE: When "RX SENSITIVITY" is re-adjusted, "S-METER" must be re-adjusted too.
• Channel
• Receiving
RSSI
1 NOTE: When "RX SENSITIVITY" must be adjusted before "S-METER." And when "RX SENSITIVITY"
(S3 level setting)
• Channel
• Receiving
(S3 level setting) 2
SQUELCH
1 NOTE: When "RX SENSITIVITY" must be adjusted before "SQUELCH." And when "RX SENSITIVITY"
• Channel
• Receiving
2
; The output level of the standard signal generator (SSG) is indicated as the SSG's terminated circuit (emf).
*; [Low band] versions.
**; [High band] versions.
***; [350 MHz band] versions.
CONDITION
: 1-21
• Set the SSG to the antenna connector and
set it as;
Frequency
Level
Modulation
Deviation
is re-adjusted, "S-METER" must be re-adjusted too.
: 1-22
• Connect the SSG to the antenna connec-
tor and set as;
Frequency
Level
Modulation
• Set the SSG to the antenna connector and
set it as;
Frequency
Level
Modulation
is re-adjusted, "SQUELCH" must be re-adjusted too.
: 1-23
• Set the SSG to the antenna connector and
set it as;
Frequency
Level
Modulation
Deviation
2) Once close the squelch by increasing [SQL]
value, then decrease the value to open the
squelch.
OPERATION
: 400.000 MHz*
450.000 MHz**
350.000 MHz***
: +20 dBµ (–87 dBm)
: 1 kHz
: ±1.5 kHz
: 400.000 MHz*
450.000 MHz**
350.000 MHz***
: +23 dBµ (–84 dBm)
: None
: 400.000 MHz*
450.000 MHz**
350.000 MHz***
: –7 dBµ (–114 dBm)
: None
: 470.000 MHz*
520.000 MHz**
400.000 MHz***
: –14 dBµ (–121 dBm)
: 1 kHz
: ±1.50 kHz
6 - 8
ADJUSTMENT
VALUE
ITEM
Push
[ENTER].
[BPF C ALL]
Push
[ENTER].
[RSSI S3 Level]
[RSSI S1 Level]
Push
[SQL]
[ENTER].

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