16-channel GPS antenna splitter

(Downloads: Data Sheet, Manual)


In several use cases there is a need for providing a GPS reference signal to a variety of device with built-in receivers. Running separate Antenna cables to each of those GPS receivers is often difficult and cumbersome.

This includes, for example

  • lab setups where many cellular base stations with GPS clock reference input are operated

  • lab setups wit a variety of measurement devices that utilized GPS disciplined reference clocks

  • in-building distribution of GPS RF signals

The sysmocom 16-channel GPS antenna RF splitter is the ideal solution for such setups. Its unparalleled number of 16 receiver-side RF ports allow for a large density of GPS receivers.

The GPS RF signal of a single GPS antenna (which can optionally be phantom powered by the splitter) is filtered, amplified, filtered again and then split (in two stages of 1:4 dividers) across 16 RF outputs.

Each output features an integrated DC-block and a dedicated LED to indicate if phantom voltage is supplied by the attached receiver or not. Supported biasing voltages on the output side are in the range of 3 .. 12V DC.


The product is available in two form-factors

  • a stand-alone extruded aluminum desktop enclosure - useful for portable operation on a lab desk

  • as a module for a 3U component carrier - a perfect fit for larger rack-mounted lab installation or in-building GPS RF signal distribution


Technical Data

Electrical Specification

Supply Voltage

12V DC, provided either via 5.5/2.1mm barrel or internal 2.54mm header

Phantom Voltage to Antenna

Selectable via jumper (none, 3V, 5V, external)

Phantom Voltage from Receivers

Supported range from 3V .. 12V DC

Overall RF System Gain

8 dB typical @ 1.57542 GHz


1.57422 .. 1.57662 GHz

RF Isolation (between outputs)

20 dB (same 1:4 divider); 40 dB (different 1:4 dividers)


  • >= 80 dB < 1.4 GHz and > 1.65 GHz

  • >= 65 dB < 1.5 GHz and > 1.60 GHz

RF connectors

SMA, female, bulkhead mount

Internal Filters

2x EPCOS B39162B3520U410 reflective SAW filters

Internal LNA

1x 30 dB, 1.0 dB Noise Figure

Absolute Maximum Input RF Power

25 dBm

Operating Temperature

-40 to 85 centigrade


Mechanical Specifications

All dimensions exclude the protruding RF connectors!


3U compontent carrier

Desktop Enclosure

Dimensions (W x D x H)

128.4 mm x 50.8 mm (10 DU) x 45 mm

105 mm x 65 mm x 53 mm

Weight (net)



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