BackGeode Antenna Specifications
6 Jul 2022
GNS1 and GNS2
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ARP = Antenna Reference Point: Case Bottom at the center of the center thread insert.
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L1 Phase Center Offset: 30.589 mm above the Antenna Reference Point
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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.
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Antenna Radius: 54.61 mm at SHMP
GNS2, GNS3S, GNS3M
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External Antenna Port:
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GNS2: MCX type, 50 ohm 3.3 V DC at 20 mA maximum
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GNS3S: MCX type, 50 ohm 15 V DC at 20 mA maximum
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GNS3M: MCX type, 50 ohm 15 V DC at 45 mA maximum
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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 |
