Specifications - Icom IC-R20 Service Manual

SECTION 1
• IC-R20
M
GENERAL
• Frequency coverage
Version
[EUR], [UK],
[SEA], [CAN]
[EXP-01], [EXP-02]
0.150–821.999, 851.000–866.999,
[USA]
896.000–1304.999, 1305.000–3304.999
0.150–29.999, 50.200–51.200,
[FRA]
87.500–108.000, 144.000–146.000
430.000–440.000, 1240.000–1300.000
• Mode
• No. of memory channel
• Frequency stability
• Tuning steps
• Antenna Impedance
• Power supply requirement
• Polarity
• Current drain (at 3.7 V, backlight is OFF) :
Rated audio
Standby
Power saved
(Power save ratio is 1 : 4)
• Usable temperature range
• Dimensions
(projections not included)
• Weight (with antenna and BP-206) : Approx. 320 (g); 11
• External SP connector
• Audio output power (at 3.7 V) : 100 mW typical at 10 %
• BP-206 charging time
• Charging current
All stated specifications are subject to change without notice or obligation.

SPECIFICATIONS

:
Receive coverage (MHz)
0.150–3304.999
: FM, WFM, AM, SSB, CW
: 1250 channel
(incl. scan edge and auto
memory write ch.)
: ±6 ppm max.
: 0.01, 0.1, 1, 5, 6.25, 8.33*,
9*, 10, 12.5, 15, 20, 25,
30, 50 and 100 kHz
*selectable depending on
the operating frequency
band.
: 50 Ω
×
: 3 AA(R6) alkaline cells,
BP-206 or external power
supply (BC-149/A/D, CP-18)
: Negative ground
150 mA typical
100 mA typical
35 mA typical
: –10˚C to +60˚C
( –14˚F to +140˚F)
× ×
: 60(W) 142(H) 34.8(D) mm;
× ×
3 19
2 ⁄ (W) 5 ⁄ (H) 1
8 32
19
: 3-conductor 3.5(d) mm
( 1 ⁄ ) / 8Ω
8"
distortion with an 8 Ω load
: Approx. 8 hours
: 400 mA typical
M
RECEIVER
• Receiver system
• Intermediate frequency
• Sensitivity*
Single mode receiving; Except spurious point
Frequency (MHz)
0.495 – 1.619
1.620 – 4.999
5.000 – 29.999
30.000 – 49.999
50.000 – 53.999
54.000 – 75.999
76.000 – 108.000
108.001 – 117.999
118.000 – 135.999
136.000 – 146.999
147.000 – 174.999
175.000 – 221.999
330.000 – 469.999
470.000 – 769.999
770.000 – 832.999
833.00 – 1304.999
1330.000 – 2304.999
2330.000 – 2999.999
* FM and WFM is measured at 12 dB SINAD. AM, SSB and
CW are measured at 10 dB S/N.
• Squelch Sensitivity
Frequency (MHz)
0.495 – 1.619
1.620 – 4.999
5.000 – 29.999
30.000 – 75.999
3
⁄ (D) in
8
76.000 – 108.000
⁄ (oz)
32
108.001 – 117.999
118.000 – 135.999
136.000 – 174.999
175.000 – 221.999
330.000 – 469.999
470.000 – 769.999
770.000 – 832.999
833.000 – 1304.999
1330.000 – 2304.999
2333.000 – 2999.999
• Selectivity
1 - 1
: Triple super heterodyne
and down convertor
: 1st 266.7 and 429.1 MHz
2nd 19.65 MHz
3rd 450 kHz
:
FM WFM
—
0.56
—
1.8
0.4
—
1.8
—
0.56 2.5
0.71
—
5.6
18
: (except spurious points)
FM WFM
—
0.56 µV
—
18 µV
0.4 µV
—
18 µV
—
0.56 µV 18 µV
0.71 µV
—
5.6 µV
18 µV
:
SSB/CW More than 1.8 kHz / –6 dB
AM / FM More than 12 kHz / –6 dB
Less than 30 kHz / –60 dB
WFM More than 150 kHz / –6 dB
(Unit; µV)
AM SSB/CW
2.2 0.4
1.4 0.25
—
0.25
—
—
1.4
0.25
—
0.32
—
—
AM
2.2 µV
1.4 µV
—
1.4 µV
—