![background image](http://html.mh-extra.com/html/icom/ic-f70ds/ic-f70ds_service-manual_612663017.webp)
5 - 5
SOFTWARE ADJUSTMENT (Continued)
Select an operation using [
↑
] / [
↓
] keys, then set specifi ed value using [
←
] / [
→
] keys on the connected computer keyboard
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT
OPERATION
OUTPUT
POWER
[Power (Hi)]
1 • Operating CH.
• Transmitting
: CH 3
Top
panel
Connect an RF power meter to
the antenna connector.
5.0 W
[Power (L2)]
2 • Operating CH.
• Transmitting
: CH 4
2.0 W
[Power (L1)]
3 • Operating CH.
• Transmitting
: CH 5
1.0 W
MODULATION
BALANCE
[BAL]
1 • Operating CH.
• Preset [MOD N]
: CH 5
: 100
Top
panel
Connect an FM deviation meter
with an oscilloscope to the
antenna connector through an
attenuator.
Set to square wave
form
• No audio applied to the JIG cable.
• Set an FM deviation meter as;
HPF
LPF
De-emphasis
Detector
: OFF
: 20 kHz
: OFF
: (P–P)/2
• Push [P0] while transmitting.
FM
DEVIATION
(NARROW)
[MOD N C]
1 • Operating CH.
: CH 13
Top
panel
Connect an FM deviation meter to
the antenna connector through
an attenuator.
±2.00 to ±2.10 kHz
• Connect an audio generator to the JIG
cable and set as;
: 1.0 kHz/150 mV rms
• Set an FM deviation meter as;
HPF
LPF
De- emphasis
Detector
• Transmitting
: OFF
: 20 kHz
: OFF
: (P–P)/2
(NARROW)
[MOD N L]
2 • Operating CH.
• Transmitting
: CH 8
(NARROW)
[MOD N H]
3 • Operating CH.
• Transmitting
: CH 2
(WIDE)
[MOD W C]
4 • Operating CH.
• Transmitting
: CH 5
±3.95 to ±4.05 kHz
(WIDE)
[MOD W L]
5 • Operating CH.
• Transmitting
: CH 6
(WIDE)
[MOD W H]
6 • Operating CH.
• Transmitting
: CH 7
Summary of Contents for IC-F70DS
Page 1: ...SERVICE MANUAL VHF TRANSCEIVER ...
Page 42: ...S 14124HZ C1 2005 Icom Inc ...