User`s guide

Chapter 4 - Antenna Descriptions
Table 4.1 Active Hawk Antenna Technical Characteristics
Antenna Description Passive dielectric patch antenna
Top and bottom radome plastic housing
assembly
Active low noise amplifier/filter –PWB
assembly RF cable with
connector assembly
GENERAL
CHARACTERISTICS
Operating Frequency L1 (1575.42 MHz, +/- 1.02 MHz)
Input Impedance 50 Ohm
VSWR 1.5 (typical) @ 1575.42 MHz (2.5 max)
Bandwidth 10 to 45 MHz ( ± 3dB points)
Polarization Right hand circular
Azimuth Coverage 360°
Elevation Coverage 0° to 90°
Gain Characteristics of
Antenna Element
+2.0 dBic minimum at zenith
-10 dBic minimum at 0° elevation
Filtering -30dB @ 1675 MHz (typical)
-30dB @ 1475 MHz (typical)
Antenna Gain 3 Vdc version
24dB (typical, including 5 dB cable loss)
Noise Figure <1.8dB (typical), 2.2dB (max)
PERFORMANCE
CHARACTERISTICS
Dynamics Vibration: 7.7 G’s (Military Standard 810E)
Shock: 100 G’s (Military Standard 810E)
Power Requirements 3 V ± 0.2 Vdc for GC3LPxxxxx models
ELECTRICAL
CHARACTERISTICS
Current Consumption 16mA (typical), 20mA (max)
Dimensions 38 x 34 x 13.2 mm ± 0.5 mm
Weight < 89 grams (including 5m cable and
connector)
Mounting Methods Magnetic and Blind holes (2) Taplite screw
size of 2.6 x 5 mm (1 mm thick base plate)
Radome color Black
Cable Connectors
MMCX r/a plug – Standard for 3 Vdc antenna
PHYSICAL
CHARACTERISTICS
Antenna to receiver
Interconnection
Single shield RG-316 type coaxial cable
5 meters (25 ft.) long (See connectors above)
Operating
Temperature
-40ºC to +100ºC
Storage Temperature -40ºC to +100ºC
Thermal Testing Cycled 600 hours at –40°C and +100°C
UV Radiation Sunshine Carbon Arc System – JIS D0205
Salt Spray Test 320 hours, Spray 5% NaCl solvent at +35°C
ENVIRONMENTAL
CHARACTERISTICS
Immersion Test 60 minutes at 1 meter
MISCELLANEOUS
Optional Features Special order model: Substrate (w/o radome
and base) version with cable and connector
NOTE
All values above are referenced to 25°C unless indicated otherwise
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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