Freqency And Transmit Adjustment - Icom IC-E7 Service Manual

5-2 FREQUENCY AND TRANSMIT ADJUSTMENT
• Set the specifi ed value using [DIAL], and push [BAND] to store the set value. Then push [CALL] to move to the next adjustment item.
NOTE: "REFERENCE FREQUENCY" should be adjusted before "DEVIATION" and "RX SENSITIVITY," and "DEVIATION" should
be adjusted before "DTCS BALANCE" (on the next page).
ADJUSTMENT ITEM
REFERENCE 1 •
FREQUENCY
[Fr]
TX HIGH POWER 1 •
(VHF/Low band)
[PH1]
(VHF/Mid band) 2 • Transmitting
[PH2]
(VHF/High band) 3 • Transmitting
[PH3]
(UHF/Low band) 4 • Transmitting
[PH4]
(UHF/Mid band) 5 • Transmitting
[PH5]
(UHF/High band) 6 • Transmitting
[PH6]
TX LOW POWER 1 • Transmitting
(VHF/Low band)
[PL1]
(VHF/Mid band) 2 • Transmitting
[PL2]
(VHF/High band) 3 • Transmitting
[PL3]
(UHF/Low band) 4 • Transmitting
[PL4]
(UHF/Mid band) 5 • Transmitting
[PL5]
(UHF/High band) 6 • Transmitting
[PL6]
DEVIATION 1 •
(VHF/Low band)
[dE1]
(VHF/Mid band) 2 • Transmitting
[dE2]
(VHF/High band) 3 • Transmitting
[dE3]
(UHF/Low band) 4 • Transmitting
[dE4]
(UHF/Mid band) 5 • Transmitting
[dE5]
(UHF/High band) 6 • Transmitting
[dE6]
ADJUSTMENT CONDITION
Connect an RF power meter to the antenna connector.
• Loosely couple a frequency counter to the antenna connector.
• Transmitting
Connect an RF power meter to the antenna connector.
• Transmitting
Connect an audio generator to the [MIC/SP] jack through the JIG cable (see
the page 5-1) and set as;
Frequency : 1.0 kHz
Level : 90 mVrms (−8 dBm)
• Connect a modulation analyzer to the antenna connector through an
attenuator and set as;
LPF : 20 kHz
HPF : OFF
De-emphasis : OFF
Detector : (P–P)/2
• Transmitting
Otherwise, these adjustments will not be adjusted properly.
5 - 3
VALUE
440.00000 MHz
1.5 W
1.0 W
0.1 W
±4.2 kHz