12713020-003-2 Revision F.01 – January 2007 SSU-2000 Technical Reference 275
Chapter 5 Antennas
Antenna Kits and Accessories
GPS L1 Inline Amplifier
The GPS L1 Inline Amplifier (570704-0002) option boosts the signal from the
antenna. Use this amplifier on LMR-400 cables that are longer than 650 feet; it
receives power from the GPS radio receiver through the antenna coaxial cable
connections. Table 5-7 provides mechanical and electrical specifications for the
amplifier.
VSWR < 1.6:1 @ 1,575 MHz
DC Breakdown Voltage 90 Volts
Dissipation Capacity 10,000 Amperes, impulse 8/20 µsec
Connector Type N-Type
Temperature –55°C to + 70°C
Relative Humidity 100% Non-immersed
Altitude 200 ft. (60 m) below sea level to 13 000 ft. (3962 m) above
sea level
Table 5-7. GPS L1 Inline Amplifier Specifications
Characteristic Specification
Mechanical
Connectors, (In/Out) N-Type
Gain 20 dB ± 2 dB
Dimensions, includes connectors Length: 3.77 in (9.6 cm)
Electrical
Power +4 VDC to +28 VDC
Current < 10 mA
Noise Factor < 3 dB
Table 5-6. FCC-250B-90-1.5NFNF Specifications (Continued)
Characteristic Specification
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