Fcc-250B-90-1.5Nfnf Specifications; Transient Eliminators - Symmetricom TimeProvider 5000 User Manual

Appendix C Installing the GPS Antenna
Antenna Kits and Accessories
Table C-2. Specifications for GPS Antennas with Internal LNA (Continued)
Characteristic
Element
Carrier
Bandwidth
Noise Figure
Output Impedance
Gain
Marine 26
Marine 40
Marine 50
Table C-3 lists the available accessories for GPS antennas with internal LNA.
Table C-3. 26 dB L1 GPS Antenna Accessory Kit
Part Number
112-43400-00-3
12010210-000-0
12813080-000-0

Transient Eliminators

Symmetricom offers the FCC-250B-90-1.5NFNF Transient Eliminator for installations
that require antenna coaxial lead-in protection. The FCC-250B- 90-1.5NFNF
Transient Eliminator passes DC power and frequencies in the 1.5 GHz range with
non-downconverter L1 GPS antennas. In most installations, the transient eliminator
mounts near the point at which the antenna lead enters the facility.
provides the transient eliminator specifications.
Table C-4. FCC-250B-90-1.5NFNF Specifications
Characteristic
Type
Response Time
Impedance
470 TimeProvider 5000 User's Guide
Right Hand Circular
L1 (1545.42 MHz)
10 MHz
< 2.5 dB
50 
26.5 dB  3 dB
40 dB minimum
48 dB minimum
Transient Eliminator, 90 Volts, 1.5 GHz, N-Type
Bracket Assembly, Antenna Mount Right Angle
Crimper Kit, LMR-400 (crimp tool, 2150 tape, LMR preptool,
10 each crimp N-type connectors)
Gas
< 2 nanoseconds
50 
Specification
Description
Table C-4
Specification
098-00028-000 Revision F – May, 2012