4-Way Military Qualified GNSS Splitter GS14i

√ Design for wireless infrastructure applications; √ Optional antenna current monitor and alarm, √ Pole-mount environmental housing available(IEC 529 level IP55) √ Surge protection available (Tested to EN61000-4-5) √ Full GNss band:GPS/GLONASS/Beidou/Galileo/RNSS/QZSS/SBAS/NAVIC. *Frequency Range:1150~1650MHz; √ Gain(amplified):0dB ~ 21dB(Be specified) √ Passive: -7.5dB (Be specified), √ Pass DC from J1,J2,J3,J4 to In Port; √ High lsolation:>28dB,



GPS and GNSS Splitters

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  • Application Background

    The GS14i lS a hich performance GPs sianal soliter that can be confiqured to monitor the GPS antenna curent , providing and alarm indication if theantenna is not operating to spec. The GS14i also features an optional antenna Dc bias "Pick-8Choose' circuit which alows for active antenna Dcinput to be applied to any or all of the RF outputs, With this option ,one DC voltage wil be chosen to power the antenna while the other input wil beswitched to Dc loads,if the selected Dc bias input should fai, the c bias wil be automatcally switched to another Dc input so as to ensure anuninterrupted supply to the active antenna. The GS14i man be conigured as a passive or an active device. civing the network encineer the fexibity tosneciy the device cain and por-to-ort isolation. The GS14 may also be ordered with surce protection on al five ports and in a sealed housinosufficient for many vears of Operation in external environments




    Parameter Conditions Min Type Max Units
    Freg Range Ant - Any Port, Unused Ports -50Q(1) 1164   1616 MHz

    Gain(2)-Amplified(Norm)-Amplified(Hi Iso)

    Ant-Any Port. Unused Ports-50(1)Gain may be specified by the customer) 20 21 24 dB
    9 10 11
    Ant- any Port, ,Unused Ports - 50Ω(1) -1 0 1 dB
    Input/output SWR All Ports 50Ω(1)   1.5:1 2.0:1 -
    Noise Figure-Amplified Ant-Any Port, Unused Ports-50Ω(1)Gain=20dB     2.0 dB
    Amp. Balance J1-J2l.Ant-Any Port, Unused Ports-50Ω(1)     0.5 dB
    Phase.Balance Phase(J1-J2)Ant-Any Port,Unused Port-50Ω(1)   - 1.0 deg
    Delay-Passive-Amplified Ant-Any Port, Unused Ports-50Ω1).L1S L1     3/5 ns
    -Amplified (Hi Iso.)
    Adjacent Ports: Ant - 50Ω(1) 13     dB
    Alternate Ports: Ant - 50Ω(1) 21
    Adjacent Ports: Ant - 50Ω(1) 35
    Alternate Ports: Ant - 50Ω(1) 4
    DC IN DC Input on any RF Output     9 VCD
    DC Ripple 300 Hz to 1MHz     50 mV pk-pk
    Device Current Current Consumption of Active device. excluded Ant. Cur.   18 20 mA
    Ant/Thru Current(3) Max source DC current through device     250 mA
    AntennaMonitor(4) Ioc Range for Open Circuit Threshold 15   75 mA
    Isc Range for Short Circuit Threshold(5) 100   180 mA
    Surge Protection 8/20us   4   kA


    Note: (1) Note that proper RF performance, the GS14i must have all RF ports terminated into a 50 ohm coaxial cable system or a 50 ohm load.
    (2) Custom gain option available.

    (3) Maximum current available from the DC source through the GS14i when output of GS14i is short circuited.

    (4) Open circuit and short circuit currentl0C, ISC) may be specified by the customer within the specified range

    (5) In-rush current shall not exceed 3A or exceed lsc for greater than 1ms.


    Operational Description

    Antenna DC Bias Select

    The GS14 soliter recuires that a Dc voage be applied to one or more of the RF outout ports by ways of the RF conector center conductor.f DC voltages are apliedo more than one of the RF output ports the GS14i pick-&-chose circuit wil choose one of these DC inpu to power the active circuitry of the GS14 and wil also pass thisc vofane throuoh the soler to the center conductor of the RE inout oort The Dc yotane available on the RE inout port can then be used to power the aodication'sactive antemna.The DC voltages appled to the RF outputs that are not chosen by the pick-&-choose circuitry wil be automaticaly switched through an RF choke to2000hm Dc loads The DC votanes may be apolied to any or al of the RF outputs howeverthe pick-8-choose circuit wil aways select the DC voltae ont the lowestumbered RF port that has a Dc volae ppied to power the GS14 and the appicaton's anienna f the choosen Dc inout were to be removed or fail.the pick-schoosen circuit will automatically switch to the next higher mumbered RF port to which a DC voltage is applied.


    Amplifier And Splitter

    The GS14i has the option as either a passive devide, of to be ordered with amplification. If the amplified option is chosen, additional options are available for specifying the amplifier gain and the poer-to-port is isolatin . Amplified versiona of the GS14i that also include the high Isolation option do not require 50 ohm termination on unuesd ports in order for the splitter to peratte properly. Passive versions or amplified versions without the high solation option always require 50 ohm terminations on unused ports for proper operation.






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