5 - 5
5-3 SOFT WARE ADJUSTMENT
Select an operation using [
↑
] / [
↓
] keys, then set specifi ed value using [
←
] / [
→
] keys on the connected computer keyboard
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT
LOCATION
PLL LOCK
VOLTAGE
[LV (RX LVA)]
[LV (TX LVA)]
1 • Operating CH.
• Preset LV(RX LVA)
• Receiving
: CH 1
: 158 [3.10 V]
PC
screen
Check the "LVIN" item on the
CS-F1700 ADJ's screen.
3.10 V
2 • Operating CH.
• Preset LV(TX LVA)
• Transmitting
: CH 10
: 46 [0.90 V]
0.90 V
CONVENIENT:
The PLL lock voltage can be adjustment automatically.
Set the cursor to "RX LVA"/"TX LVA" and then push [ENTER] key.
3 • Operating CH.
• Receiving
: CH 7
PC
screen
Check the "LVIN" item on the
CS-F1700 ADJ's screen.
3.0–4.8 V
(Verify)
4 • Transmitting
2.0–3.0 V
(Verify)
REFERENCE
FREQUENCY
[REF]
• Operating CH.
: CH 7
Rear
panel
Loosely couple a frequency
counter to the antenna connec-
tor.
174.000000 MHz
• Connect an RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
DSP
FREQUENCY
[Dig REF]
(IC-F1721D/
F1821D only)
• Operating CH.
: CH 9
MAIN
unit
Connect a frequency counter to
CP19.
12.288000 MHz
• Connect an RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
BASE BAND
FREQUENCY
[Dig DA]
(IC-F1721D/
F1821D only)
• Operating CH.
• Preset Dig Mode
: CH 9
: 13
Rear
panel
Loosely couple a frequency
counter to the antenna connec-
tor.
174.000000 MHz
• Connect an RF power meter or 50
Ω
dummy load to the antenna connector.
• Transmitting
CP19: DSP frequency
check point
