Icom MR-1220 Series, Instruction Manual

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Display unit (MR-1220)
Model MR-1220R4 MR-1220T4 MR-1220T6 MR-1220T6L
Scanner unit SC-R40 SC-T40 SC-T60 SC-T60L
Display type 12.1 inch TFT color LCD
Resolution 800 (H) × 600 (W) dots
Minimum range 25 m, 82 ft (at 1/8 NM range)
Maximum range 36 NM 48 NM 72 NM
Range scales (NM)
1/8, 1/4, 1/2, 3/4, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 32, 36, 48* 1 , 64* 2 , 72* 2
*1: For only the MR-1220T4/MR-1220T6/MR-1220T6L
*2: For only the MR-1220T6/MR-1220T6L
Preheat time 90 seconds
Power supply requirement 12 V or 24 V DC (Power source requirement: 10.2 ~ 42 V DC)
Approximate power consumption
(at zero wind velocity)
60 W 70 W 80 W 90W
Usable temperature range
–15˚C ~ +55˚C, +5˚F ~ +131˚F
Input data format NMEA 0183, N+1, AUX, IEC61162-2 format (for AIS unit)
Output data format
NMEA 0183
Dimensions
(Projections not included)
301 (W) × 323.5 (H) × 119.2 (D) mm, 11.8 (W) × 12.7 (D) × 4.7 (H) in
L
Including the mounting bracket
Weight (Approximately)
4.8 kg, 10.6 lb
L
Including the mounting bracket
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Scanner units
Model MR-1220R4 MR-1220T4 MR-1220T6 MR-1220T6L
Scanner unit SC-R40 SC-T40 SC-T60 SC-T60L
Scanner type (Typical)
2 ft (60 cm)
Radome
4 ft (120 cm)
Open array
4 ft (120 cm)
Open array
6.5 ft (200 cm)
Open array
Beam width (Typical) Vertical
4˚ 2˚ 2˚ 1.2˚
Horizontal 22˚ 23˚ 23˚ 23˚
Side lobe (Typical) –22 dB –24 dB –24 dB –27 dB
Polarization Horizontal
Transmission frequency 9410 MHz ±30 MHz P0N
Peak output power 4 kW 4 kW 6 kW 6 kW
Pulse width
80 ns/2160 Hz,
80 ns/1440 Hz,
250 ns/1440 Hz,
350 ns/1440 Hz,
900 ns/720 Hz
80 ns/2160 Hz,
80 ns/1440 Hz,
250 ns/1440 Hz,
350 ns/1440 Hz,
900 ns/720 Hz
80 ns/2160 Hz,
80 ns/1440 Hz,
250 ns/1440 Hz,
350 ns/1440 Hz,
900 ns/720 Hz, ˚
900 ns/660 Hz
80 ns/2160 Hz,
80 ns/1440 Hz,
250 ns/1440 Hz,
350 ns/1440 Hz,
900 ns/720 Hz,
900 ns/660 Hz
Mixer and local oscillator Microwave Integrated Circuit
Transmitting tube Magnetron MAF1421B Magnetron MAF1422B
Modulator
FET switching
Duplexer
Circulator
Tuning system
Automatic/manual selectable
Intermediate frequency
250 MHz 60 MHz
IF band width 15 MHz, 3 MHz 10 MHz, 3 MHz
Usable temperature range –25˚C to +70˚C, –13˚F to 158˚F
Relative humidity Less than 95% at 40˚C (+104˚F)
Dimensions (SC-R40)
Diameter of rotation/Height
(SC-T40/SC-T60/SC-T60L)
640 (W) × 256 (H) ×
640 (D) mm,
25.2 (W) × 10.1 (D) ×
25.2 (H) in
1217/395 mm,
48/16 in
1217/395 mm,
48/16 in
1995/395 mm,
79/16 in
Weight (Approximately)
(Without cable)
8 kg, 17.5 lb 18 kg, 39.7 lb 18 kg, 39.7 lb 20 kg, 44.1 lb
System cable length
Supplied 15 m, 49.2 ft 20 m, 65.6 ft
Maximum 30 m, 98.4 ft 30 m, 98.4 ft
SPECIFICATIONS