Transmitter And Receiver Adjustment - Icom ID-RP2 Service Manual

4-3 TRANSMITTER AND RECEIVER ADJUSTMENT

ADJUSTMENT ADJUSTMENT CONDITION
PLL 1 • Connect the test plug to [TEST]
REFERENCE connector or select the TX mode
FREQUENCY "PN" in the utility screen.
• Transmitting
After adjustment, unplug the test plug or select the TX mode "Normal" in the utility screen.
IF OUTPUT 1 • Connect the test plug to [TEST]
LEVEL connector or select the TX mode
"PN" in the utility screen.
• Set a spectrum analyzer as:
RBW
• Transmitting
After adjustment, unplug the test plug or select the TX mode "Normal" in the utility screen.
RF OUTPUT 1 • Connect the test plug to [TEST]
POWER connector or select the TX mode
"PN" in the utility screen.
• Transmitting
After adjustment, unplug the test plug or select the TX mode "Normal" in the utility screen.
CLOCK 1 • Connect an SSG to J401 and
RECOVERY set as:
Frequency :1747.5 MHz
Level
Modulation : GMSK (10 Mbps,
• Receiving
RE 1 • Connect an SSG to [ANT] and
SENSITIVITY set as:
Frequency : 10.000 GHz (USA)
Level
Modulation : GMSK (10 Mbps,
• Receiving.
2 • Set an SSG as:
Level
• Receiving
3 • Set an SSG as:
Level
• Receiving
*The output level of the standard signal generator (SSG) is indicated the SSG's open circuit.
UNIT
IF unit
IF unit
: MAX (more than
3 MHz)
CHASSIS Connect an RF power
IF unit
: 71 mV* (–10 dBm)
BT=0.5, PN9)
IF unit
10.150 GHz (USA-1)
: 40 µV* (–75 dBm)
BT=0.5, 1/0)
: 28 µV* (–78 dBm)
: 56 µV* (–72 dBm)
C - 4 - 5
MEASUREMENT
LOCATION
Connect a frequency
counter to J201.
C o n n e c t a s p e c t r u m
analyzer to J201.
meter to [ANT] connec-
tor.
C o n n e c t a d i g i t a l
multimeter or oscillo-
scope to the check point
"RCV."
C o n n e c t a d i g i t a l
multimeter or oscillo-
scope to the check point
"RE."
ADJUSTMENT
VALUE
UNIT ADJUST
2332.500 MHz IF unit
–5 dBm IF unit
2.0 W IF unit
1.5 V IF unit
3.3 V IF unit
0 V
3.3 V
X201
R260
R5
C135
R150
Verify