GPS Antenna / Signal Splitter
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GPS230 - GPS, GLONASS, Galileo Signal Splitter

2 Way, SMA w/ N-Type Input, 1-2 GHz, 50 Ohm, Passive

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GPS Antenna Signal Splitter, 2 Way, SMA with N-type female input (sum port)

1x2 GPS Antenna Signal Splitter
SMA Female Outputs & N-Type Input

  • GPS L1-L5, GNSS, Galileo signal splitter
  • Low Insertion Loss (0.2 dB avg)
  • High Port to Port Isolation (30 dB avg)
  • Excellent VSWR (1.10 : 1 avg)
  • 15 VDC & 75 mA max on DC block port
  • Tri Alloy SMA (2) & Type N (1)
2 Way Power Divider RF Input Ratings
Into Matched
Load VSWR's
In-Phase 180°
1.2 : 1 20 Watts 20 Watts
2.0 : 1 20 Watts 5 Watts
10 Watts 0.5 Watts
2 Way Power Combiner RF Input Ratings
Input Signals In-Phase 180°
Coherent 2 X 10 Watts 2 X 0.25 Watts
Non-Coherent 2 X 0.5 Watts
2-way GPS Antenna Signal Splitter, SMA Female with Type N Input - Outline Drawing
Mechanical Specifications
Circuit Design ……… 
Passive Wilkinson; DC pass, DC block 1 port ea
Connectors ……………  SMA Jack, 50 Ohm Coaxial
Body ……………………  Brass, Tri-Alloy Plate
Connector Pin …  Beryllium Copper, Gold Plate
Insulator ……………  PTFE, Virgin Electrical Grade
Housing …………………  Aluminum, Clear Chem Film
Operating Temp …  -65°C to +85°C
Weight ……………………  148 Grams

GPS230 - SMA & N-Type GPS Splitter Specifications

Range (MHz)
Insertion Loss
above 3.01 dB
Isolation Input
1000-2000 0.4 dB max 0.2 dB max 3° max 22 dB min 1.20 : 1 max 1.20 : 1 max

GPS230 - 1x2 GPS Antenna Splitter Test Data

2 Way GPS Antenna Splitter, SMA - Insertion Loss
Insertion Loss Test Sweep for Model GPS230 from INSTOCK Wireless.
2 Way GPS Antenna Splitter, SMA - Isolation
Isolation Test Sweep for Model GPS230 from INSTOCK Wireless.
2 Way GPS Antenna Splitter, SMA - VSWR
Input Return Loss Test Sweep for Model GPS230 from INSTOCK Wireless. Output Return Loss Test Sweep for Model GPS230 from INSTOCK Wireless.

Input Return Loss

Output Return Loss

GPS230 - Features & Benefits


GPS230 is a two way, passive, GPS signal splitter ideal for splitting a GPS antenna signal between two receivers while providing a DC current path to power a remotely located active GPS antenna from one receiver while blocking the DC path from the other. Max voltage rating at the DC blocked port is 15 VDC; maximum current rating is 75 mA. Maximum voltage rating at the DC pass port is 50 VDC; max current rating is 2000 mA. Furnished with SMA female connectors at both output ports and Type N female connector at the input (sum) port.


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 0.4 dB max insertion loss (above the 3.01 dB power split), 22 dB min isolation, 1.20:1 max input VSWR and 1.20:1 max output port VSWR. Equal power split and symmetry is displayed by 0.2 dB amplitude balance and 3 degrees phase balance. Narrow band RF performance over your frequency range may be even better. See 2 way GPS splitter test sweeps for details. DC block is specially designed to be RF transparent with negligible effect on performance.


Mechanical features include precision CNC, brass, 50 ohm SMA 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 lowcontact 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 two 0.125" dia (3.18 mm) through holes. RoHS construction includes no-lead solder and a finish free of hexavalent chromium.


Housing dimensions are 1.98" wide by 1.98" deep by 0.88" high (50.3 x 50.3 x 22.2 mm). The SMA female (jack) connectors extend 0.44" (11.1 mm) from the housing. The Type N female input jack connector extend 0.65" (16.3 mm) from the housing. Operating temperature range is from -65°C to +85°C. Weight is 148 grams. See 2 way GPS signal splitter outline drawing for more information.


Model GPS230 is a 2-way, passive, SMA, GNSS splitter with a Type N female input port covering all frequencies from 1000 to 2000 MHz with best-in-class performance for GPS L1, L2, L3, L4, L5, GLONASS and Galileo global navigation satellite positioning system applications, and is deployed worldwide.

Options / Additional Models

GPS210: GPS antenna signal splitter; SMA female all ports.

GPS200: GPS antenna signal splitter; Type N female all ports.

PD2202: 698-2700 MHz power divider combiner; SMA female w/ Type N input connector.

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