Icom IC-R3 Service Manual page 4

SECTION 1
M
GENERAL
• Frequency range
• Mode
• No. of memory channel
• Frequency stability
• Tuning steps
• Anntena connector
• Power supply requirement
Battery
×
3 alkaline cell
×
3 AA(R6) Ni-Cd
×
1 Li-ion
External DC supply
• Polarity
• Frequency resolution
• Current drain (at 4.5 V)
Receiving condition Except converter
Rated audio
Standby
Power saved (1:4)
TV reception
LCD lighting
TV sound receiving
• Usable temperature range
• Dimensions
(projections not included)
• Weight (w/ antenna and battery) : 300 (g); 10.6 (oz)
• External SP connector
• Video/Audio OUT connector : 3-conductor 3.5(d) mm
M
RECEIVER
• Receiver system
• Intermediate frequencies
AM, FM
1ST IF
240.1
2ND IF
26.05
3RD IF
0.450
1
* 30–799.995 MHz and 1321–2099.995 MHz range
2
* 800–1320.995 MHz and 2100–2450.095 MHz range
• Converter frequency
All stated specifications are subject to change without notice or obligation.
SPECIFICATIONS
: 0.495–2450.095 MHz
: F3, A3, C3F (TV)
: 450 channels
: ±6 ppm max.
(–10˚C to +50˚)
: 5, 6.25, 10, 12.5, 15, 20,
25, 30, 50, and 100 kHz
: BNC (50 Ω)
:
Voltage
DC 4.5 V
DC 3.6 V
DC 3.7 V
DC 3.6–6.3 V
: Negative ground
: 5 kHz, 6.25 kHz
: (Typical)
Converter area
210 mA 250 mA
140 mA
180 mA
65 mA
75 mA
730 mA
780 mA
210 mA
250 mA
: –10˚C to +60˚C
( –14˚F to +140˚F)
: 61(W) × 120(H) × 32.9(D) mm;
× ×
2 13 ⁄ (W) 4 23 ⁄ (H) 1 9 ⁄ (D) in
32 32 32
: 3-conductor 3.5(d) mm
)/8 Ω
( 1 ⁄
8"
)/8 Ω
( 1 ⁄
8"
: Tripple super heterodyne
: (Unit; MHz)
WFM C3F (TV)
1
240.1 241.85* , 238.35*
13.25 58.75
0.450 —
: 1291, 1320 or 1351 MHz
(More than 1150 MHz)
• Sensitivity*
Frequency (MHz)
0.495 – 1.625
1.625 – 5.0
5.0 – 30.0
30.0 – 76.0
76.0 – 108.0
108.0 – 118.0
118.0 – 136.0
136.0 – 175.0
175.0 – 222.0
222.0 – 330.0
330.0 – 470.0
470.0 – 770.0
770.0 – 800.0
800.0 – 1300.0
1300.0 – 2000.0
2000.0 – 2300.0
2300.0 – 2450.095
*
FM and WFM are measured at 12 dB SINAD; AM is measured
at 10 dB S/N.
• Squelch Sensitivity
Frequency (MHz)
0.495 – 1.625
1.625 – 5.0
5.0 – 30.0
30.0 – 76.0
76.0 – 108.0
108.0 – 118.0
118.0 – 136.0
136.0 – 175.0
175.0 – 222.0
222.0 – 330.0
330.0 – 470.0
470.0 – 770.0
770.0 – 800.0
800.0 – 1300.0
1300.0 – 2000.0
2000.0 – 2300.0
2
2300.0 – 2450.095
• Selectivity
AM / FM
WFM
• Audio output power
• Audio output impedance
1 - 1
: (except spurious points)
FM WFM AM
—
2.5 µV
0.56 µV
—
1.8 µV
1.8 µV —
0.4 µV
— 1.8 µV
—
1.8 µV
1.8 µV
—
0.56 µV 2.5 µV
0.79 µV —
1 µV —
1.4 µV
2.5 µV
:
FM WFM AM
—
2.5 µV
0.56 µV
—
1.8 µV
10.0 µV —
0.4 µV
— 1.8 µV
—
10.0 µV
1.8 µV
—
0.56 µV 10.0 µV
0.79 µV —
1 µV —
1.4 µV
2.5 µV
:
more than 12 kHz/–6dB
less than 30 kHz/–50 dB
more than 150 kHz/–6 dB
: 100 mW typical at 10%
distortion with an 8 Ω load
: 8 Ω