User`s guide

Chapter 4 - Antenna Descriptions
Table 4.7 Timing2000 Antenna Technical Characteristics
GENERAL
CHARACTERISTICS
Antenna Description Molded UV- resistant plastic conical
radome
Aluminum die cast bottom housing
Electrically shielded low noise amplifier
assembly
Operating Frequency L1 (1575.42 MHz,
+/- 2 MHz)
Input Impedance 50 Ohms
VSWR 1.5 (typical) @ 1575.42 MHz
Bandwidth 25 MHz (typical) +/- 3dB points)
Filtering 40dB at +/- 50MHz from L1
Polarization Right hand circular
Azimuth Coverage 360°
Elevation Coverage 0° to 90°
Patch Element Gain
Characteristics
+2.0 dBic minimum at zenith, -10 dBic
minimum at 0° elevation
LNA Gain 25dB (typical)
Noise Figure < 1.5dB (typical)
PERFORMANCE
CHARACTERISTICS
Dynamics Vibration: SAE J1455
Input Voltage Range 5 +/- 0.25 Vdc
ELECTRICAL
CHARACTERISTICS
Current Requirements 26 mA @ 5 Vdc (typical)
Dimensions 102.0 diameter x 82.0 height (mm)
Weight 312 grams
Mount Center mount (M28 nut)
PHYSICAL
CHARACTERISTICS
Connector N jack
Operating Temperature -40ºC to +85ºC
Storage Temperature -40ºC to +85ºC
Humidity 85% non-condensing @ +30ºC to +60ºC
UV Radiation Test JIS D0202 (Sunshine Carbon Arc
System)
Salt Spray Test Spray 5% NaCl solvent at +35°C
Immersion Test 1 meter (with connector sealed)
ENVIRONMENTAL
CHARACTERISTICS
Transient Voltage Test +/- 12 kV
MISCELLANEOUS
Optional Features Post Mount Bracket, P/N (MNT62312B1)
NOTE
All performance measurements are typical and referenced to 25°C
unless indicated otherwise
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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