Specifications - Icom IC-821H Service Manual

SECTION 1 SPECIFICATIONS
• GENERAL • RECEIVER
• Frequency coverage:
Version
144 MHz band
440 MHz band
Rx: 136.0-174.0 MHz*
U.S.A 430.0-450.0 MHz
Tx: 144.0-148.0 MHz
Europe 144.0-146.0 MHz 430.0-440.0 MHz
Australia
144.0-148.0 MHz 430.0-450.0 MHz
Sweden 144.0-146.0 MHz 432.0 -438.0 MHz
*Guaranteed frequency range
IS
144.0-148.0 MHz
• Mode SSB (J3E),
cw
(A1A), FM (F3E)
• Number of memory: 160 (80 channels for each band)
channels
• Antenna connector: VHF SO-239 (50 Q)
UHF Type-N (50 Q)
• Usable temperature: - 10°C to
+
60
t :
+14
of
to +140
of
range
• Frequency stability :
• Tuning steps
• Power supply
requirement
• Current drain
(at 13.8 V)
• Dimensions
• Weight
±
3 ppm ( - 10°C to +60°C )
SSB, CW 1,10,50 or 100 Hz
FM 0.1 , 5, 10, 12.5, 20, 25 or
100 kHz
13.8 V
±
15 % (negative ground)
Transmit Max. power 16.0 A
Receive Stand-by 2.0 A
Max. audio 2.5 A
241 (W)
x
94 (H)
x
239 (D) mm
9.5 (W)
x
3.7 (H)
x
9.4 (D) in
(projections not included)
5.0 kg; 11.0 Ib
• TRANSMITTER
• Output power
144 MHz SSB 6-35 W
FM, CW 6-45W
440 MHz SSB 6-30 W
FM, CW 6-40W
(continuously adjustable)
• Modulation system : SSB Balanced modulation
FM Variable reactance mod.
• Suprious emission : Less than - 60 dB
• Carrier suppression: More than 40 dB
• Unwanted sideband: More than 40 dB
• Microphone 8-pin connector (600 Q)
connector
• Key connector
3-conductor 3.5 (d) mm
(1/8")
• Receive system
144 MHz band
SSB, CW
FM
440 MHz band
Single conversion superheterodyne
Double conversion superheterodyne
SSB, CW Double conversion superheterodyne
FM Triple conversion superheterodyne
• Intermediate frequencies (unit: MHz)
MAIN BAND SUB BAND
MODE
~---r----.----4----.-----r---~
1st 2nd 3rd 1st 2nd
3rd
SSB
10.8500 10.9500
IL. .................................................................... .
X
>
CW
10.8491 10.9491
...
__
........................................................................................ .
FM
10.8500 0.4550 10.9500 0.4550
SSB
71.2500 10.8500
71.3500 10.9500
IL. ................................................................... .
X
~
CW 71.2491 10.8491
71.3491 10.9491
FM
71.2500 10.8500 0.4550 71.3500 10.9500 0.4550
• Sensitivity (both VHF and UHF bands)
SSB, CW 0.11 IlV for 10 dB SIN
FM 0.181lV for 12 dB SINAD
• Squelch sensitivity (both VHF and UHF bands)
SSB, CW Threshold Less than 1.0 IlV
Tight Less than 3.2 mV
FM Threshold Less than 0.1 IlV
• Selectivity
SSB, CW
CW narrow
(optional)
FM
• Spurious and image:
rejection ratio
• Audio output power:
(at 13.8 V DC)
• IF shift variable
range
• RIT variable range
SSB, CW
FM
• External speaker
connector
Tight Less than 3.2 mV
More than 2.3 kHz/-6 dB
Less than 4.2 kHz/- 60 dB
More than 0.5 kHz/-6 dB
Less than 1.34 kHz/- 60 dB
More than 15.0 kHz/- 6 dB
Less than 30.0 kHz/ - 60 dB
More than 60 dB
More than 2.0 W at 10 %
distortion with an 8 Q load
More than
±
1
.2 kHz
More than
±
1.0 kHz
More than
±
5.0 kHz
2-conductor 3.5 (d) mm
(1/8")
/8 Q
x
2 (for MAIN and SUB bands)
All stated specifications are subject to change without notice or obligation.
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