Receive Adjustments - Icom IC-T70A Service Manual

5-5 RECEIVE ADJUSTMENTS

1) Select an adjustment item using [VOL].
2) Set or modify the adjustment value as specifi ed using [DIAL], then push [BAND] to store the adjustment value.
TRANSCEIVER'S
ADJUSTMENT
RX SENCITIVITY 1 NOTE: When "RX SENSITIVITY" is re-adjusted, "S-METER" must be re-adjusted too.
136 MHz band
• Frequency: Displayed
• Receiving
145 MHz band 2 • Receiving
173 MHz band 3 • Receiving
400 MHz band 4 • Receiving
435 MHz band 5 • Receiving
478 MHz band 6 • Receiving
S-METER 1 NOTE: When "RX SENSITIVITY" must be adjusted before "S-METER." And when "RX SENSITIVITY"
[VHF band]
(S0 level)
• Frequency: Displayed
• Receiving
(S3 level) • Receiving
(Full scale) • Receiving
[UHF band] 2 • Frequency: Displayed
(S0 level) • Receiving
(S3 level) • Receiving
(Full scale) • Receiving
†
; The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
CONDITION
• C o n n e c t a n S S G t o t h e a n t e n n a
connector and set it as;
Frequency : Displayed
Level
Modulation : 1 kHz
Deviation
is re-adjusted, "S-METER" must be re-adjusted too.
1) C o n n e c t a n S S G t o t h e a n t e n n a
connector and set it as;
Frequency : Displayed
Modulation : 1 kHz
Deviation
2) Put the cursor on the adjustment item,
then push [BAND].
• Set the SSG as;
Level
• Set the SSG as;
Level
• Set the SSG as;
Level
• Set the SSG as;
Frequency : Displayed
Level
• Set the SSG as;
Level
• Set the SSG as;
Level
OPERATION
: –10 dBμ (–117 dBm)
: ±3.5 kHz
: ± 3.5 kHz
: –10 dBμ (–117 dBm)
: –6 dBμ (–113 dBm)
: 6 dBμ (–101 dBm)
: –10 dBμ (–117 dBm)
: –6 dBμ (–113 dBm)
: 6 dBμ (–101 dBm)
5 - 11
ADJUSTMENT
VALUE
ITEM
Push [BAND]
(Automatic
adjustment)
Push [BAND]
(Automatic
adjustment)
–