Receiver Adjustment - Icom IC-91A Service Manual

6-3 RECEIVER ADJUSTMENT

• Set the specified value using [DIAL], and push [BAND] to store the set value. Then push [2] to move to the next adjustment item.
ADJUSTMENT ITEM
RXBPF (A_BAND)
6T#
[TrA]
30–118 MHz bands
118–174 MHz bands
174–350 MHz bands
350–470 MHz bands
470–999.9 MHz bands
RXBPF (B_BAND)
6T$
[TrB]
118–470 MHz bands
FM S-METER (A_BAND)
5#
[S3A]
1.0–145 MHz bands
220–305.1 MHz bands
430 MHz band
530–800 MHz bands
FM S-METER (B_BAND)
5$
[S3B]
(VHF)
(UHF)
*Displayed on the function display.
†The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
ADJUSTMENT CONDITION
• Connect an SSG to the ANT connector and set as;
Dev. : 3.5 kHz
AF :1 kHz
1 • Set the SSG as;
Frequency : Specified frequencies*
Level : 0 dBµ
• Receiving
2 • Set the SSG as;
Frequency : Specified frequencies*
Level : –3 dBµ
• Receiving
3 • Set the SSG as;
Frequency : Specified frequencies*
Level : 0 dBµ
• Receiving
4 • Set the SSG as;
Frequency : Specified frequencies*
Level : –3 dBµ
• Receiving
5 • Set the SSG as;
Frequency : Specified frequencies*
Level : 0 dBµ
• Receiving
• Connect an SSG to the ANT connector and set as;
Dev. : 3.5 kHz
AF : 1 kHz
1 • Set the SSG as;
Frequency : Specified frequencies*
Level : –3 dBµ
• Receiving
• Connect an SSG to the ANT connector and set as;
Dev. : 3.5 kHz
AF : 1 kHz
1 • Set the SSG as;
Frequency : Specified frequencies*
Level : –6 dBµ
• Receiving
2 • Set the SSG as;
Frequency : Specified frequencies*
Level : –4 dBµ
• Receiving
3 • Set the SSG as;
Frequency : Specified frequency*
Level : –6 dBµ
• Receiving
4 • Set the SSG as;
Frequency : Specified frequencies*
Level : –2 dBµ
• Receiving
1 • Set the SSG as;
Frequency : Specified frequency*
Level : –6 dBµ
• Receiving
2 • Set the SSG as;
Frequency : Specified frequency*
Level : –6 dBµ
• Receiving
†
(–107 dBm)
†
(–110 dBm)
†
(–107 dBm)
†
(–110dBm)
†
(–107 dBm)
†
(–110 dBm)
†
(–113 dBm)
†
(–111 dBm)
†
(–113 dBm)
†
(–109 dBm)
†
(–113 dBm)
†
(–113 dBm)
6 - 5
VALUE
Push [BAND]
(Automatic
adjustment)
Push [BAND]
(Automatic
adjustment)