GPS122 - GPS/GNSS Antenna Signal Splitter

12-Way, TNC, 1 port DC pass, 11 ports DC blocked with 200Ω internal load

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Qty 1-9: $461.93
Qty 10-24: $412.57
Qty 25+:

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Product Overview

  • GPS L1 - L5, GLONASS, Galileo splitter
  • Low Insertion Loss (1.5 dB avg)
  • High Port-to-Port Isolation (18 dB avg)
  • Excellent VSWR (1.45 : 1 avg)
  • 15 VDC & 75 mA max on DC block port
  • Tri Alloy TNC Female (Jack) 50 Ohm
Insertion Loss
above 10.79 dB
Isolation Input
1000-2000 MHz 1.5 dB max 0.5 dB max 8° max 18 dB min 1.45 : 1 max 1.25 : 1 max
Mechanical Specifications
Circuit Design Passive Wilkinson; DC block 1 port
with 200Ω internal load
Connectors TNC Female, 50 Ohm Coaxial
Connector Body Brass, Tri-Alloy Plate
Connector Pin Beryllium Copper, Gold Plate
Connector Insulator PTFE, Virgin Electrical Grade
Housing Aluminum, Clear Chem Film
Operating Temp -65°C to +85°C
Weight 1150 Grams
12 Way Power Divider RF Input Ratings
Into Matched
Load VSWR's
In-Phase 180° Out-of-Phase
1.2 : 1 20 Watts 20 Watts
2.0 : 1 20 Watts 20 Watts
10 Watts 2 Watt
12 Way Power Combiner RF Input Ratings
Input Signals In-Phase 180° Out-of-Phase
Coherent 12 X 1.67 Watts 12 X 0.17 Watts
Non-Coherent 12 X 0.33 Watts

GPS122 Features & Benefits


GPS122 is a twelve way, TNC, GPS signal splitter with twelve (12) DC block ports furnished with 200 ohm internal load. This model is ideal for splitting a common GPS antenna signal or GPS simulator signal between up to twelve (12) receivers while blocking the DC current path from all GPS receivers. A special feature is the 200 ohm internal load that provides a current drain for the GPS receivers not powering the antenna while maintaining optimum 50 ohm impedance match and excellent RF performance at all ports. Some GPS receivers will incorrectly sense an antenna fault when there is no current draw (due to the DC block). Max voltage rating at the DC blocked ports is 15 VDC; maximum current rating is 75 mA.


The heart of the unit is a precision designed and etched Wilkinson type microstrip circuit on a low loss, high frequency, dielectric substrate. Electrical performance is highlighted by 1.5 dB max insertion loss (above the 10.79 dB power split), 18 dB min isolation, 1.45:1 max input VSWR and 1.25:1 max output port VSWR. Equal power split and symmetry is displayed by 0.5 dB amplitude balance and 8 degrees phase balance. Narrow band GPS performance in your band of interest may be even better. See 12 way GPS splitter test sweeps for details. DC block and 200 ohm internal load are specially designed to be RF transparent with negligable effect on performance.


Mechanical features include precision CNC, brass, 50 ohm TNC female coaxial connectors with tri alloy plating to ensure tarnish resistance and low PIM operation. Connector pins are gold plated beryllium copper for reliability and low contact resistance. Virgin electrical grade PTFE support insulators captivate the contact pins enabling trouble free coaxial connector mating. Long term operation and superior shielding is assured by the rugged CNC machined aluminum housing with clear chemical film finish. Secure mounting is provided by four 0.125" diameter (3.18 mm) through holes. RoHS construction includes no-lead solder and a finish free of hexavalent chromium.


Housing dimensions are 11.98" wide by 3.48" deep by 0.88" high (304.3 x 88.4 x 22.2 mm). The TNC female (jack) connectors extend 0.44" (11.1 mm) from the housing. Operating temperature range is from -65°C to +85°C. Weight is 1283 grams. See 12 way GPS splitter outline drawing for more information.


Model GPS122 is a 12-way, passive, TNC, GNSS splitter covering all frequencies from 1000 to 2000 MHz with best-in-class performance for GPS L1, L2, L3, L4, L5, GLONASS, Galileo, BeiDou and IRNSS global navigation satellite positioning system applications, and is deployed worldwide.

GPS122 - 12 Way Power Divider Combiner Test Data

Close Test Data
Insertion Loss Test Sweep for GPS122
Insertion Loss Test Sweep for GPS122
Port-to-Port Isolation Test Sweep for GPS122
Port-to-Port Isolation Test Sweep for GPS122
Input Return Loss Test Sweep for GPS122
Input Return Loss Test Sweep for GPS122
Output Return Loss Test Sweep for GPS122
Output Return Loss Test Sweep for GPS122
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