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Geode Antenna Specifications

July 6, 2022 Article #14561

Geode Antenna Specs

GNS1 and GNS2 

  •  ARP = Antenna Reference Point: Case Bottom at the center of the center thread insert.

  •  L1 Phase Center Offset: 30.589 mm above the Antenna Reference Point

  • Slant Height Measurement Point: Widest point on any flat side of the receiver case, at the junction of the case bottom and the case bumper; 29.3 mm above the ARP/Case Bottom.

  • Antenna Radius: 54.61 mm at SHMP

GNS2, GNS3S, GNS3M

  • External Antenna Port:

    • GNS2: MCX type, 50 ohm 3.3 V DC at 20 mA maximum

    • GNS3S: MCX type, 50 ohm 15 V DC at 20 mA maximum

    • GNS3M: MCX type, 50 ohm 15 V DC at 45 mA maximum

Additional details about the GNS3 Antenna can be found in Geode GNS3M National Geodetic Survey (NGS) Antenna Calibration Info (ANTCAL). 

Model

Feet to L1 Phase Center

Meters to L1 Phase Center

Geode GNS1 & GNS2

.098 ft

0.03 m

Geode GNS3

.115 ft

0.035 m

Geode GNS1 & GNS2 with Brass Adapter

.164 ft

0.05 m

Geode GNS3 with Brass Adapter

.180 ft

0.055 m

Geode GNS1/GNS2 with Brass Adapter and SECO 76mm quick release and 24mm quick release pole adapter

.492 ft

0.15 m

Geode GNS1/GNS2 with Brass Adapter and SECO 76mm quick release and 24mm quick release pole adapter

.509 ft

0.155 m

Geode GNS1 & GNS2 with Brass Adapter on 2 meter pole

6.725 ft

2.05 m

Geode GNS3 with Brass Adapter on 2 meter pole

6.742 ft

2.055 m

Geode GNS1/GNS2 with Brass Adapter and SECO 76mm quick release and 24mm quick release pole adapter on 2 meter pole

7.054 ft

2.15 m

Geode GNS1/GNS2 with Brass Adapter and SECO 76mm quick release and 24mm quick release pole adapter on 2 meter pole

7.070 ft

2.155 m