Novatel GPS-701-GG Leaflet

The GPS-702-GG, GPS-701-GG and GPS-
702-GG-N are active antennas designed to 
operate at the following frequencies (in 
MHz):

GPS L1 (1575.42) and L2 (1227.60)

Glonass L1 (1598 - 1611.5) and L2 (1242.5 - 1254.3)

This guide provides the basic information you need to install and 
begin using your new antenna.

The equipment listed below is required to set up the GPS-702-
GG, GPS-701-GG or GPS-702-GG-N antenna:

•

A mount, such as a range pole, tribrach, or tripod, with a     
5/8" x 11 thread that extends between 3/8" and 7/8" (9 
mm and 22 mm)

•

A 1" open-end wrench

•

Coaxial cable with a male TNC connector (N-Type con-
nector for GPS-702-GG-N).

•

A device with an antenna input port that both receives 
the RF signal and provides 4.5 - 18.0 VDC to the 
antenna (All NovAtel GPS receivers provide the neces-
sary power through their antenna RF connectors.)

Before installing the antenna, select a site that as closely as 
possible meets the following conditions for optimal performance:

•

An unobstructed line-of-sight from horizon to horizon 
and at all bearings and elevation angles

•

As far as possible from reflective objects, especially 
those that are above the antenna and any water bodies, 
which can be a strong source of multipath reflections

•

If obstructions and reflective surfaces are within 30 m, 
ensure the site is as high as possible. Otherwise, mount 
the antenna as low as possible.

INSTALLING THE ANTENNA
After a site has been selected, install the antenna as follows.

1. Verify that the thread on the mount does not extend more 

than 7/8" (22 mm) to ensure the plastic inside the antenna 
receptacle is not damaged when the mount is inserted. If it 
extends further than 7/8" (22 mm), add two jam nuts to 
shorten the exposed thread, ensuring the nuts are well-tight-
ened.

2. Align the mount thread with the metal adapter on the bottom 

of the antenna and rotate the antenna clockwise until it is 
securely screwed to the mount. Using a wrench, tighten the 
adapter to the mount. 

The metal adapter on the bottom of the antenna is fixed in place. 
Do not attempt to remove it.

3. Remove the dust cap from the antenna’s TNC connector (N-

Type connector for GPS-702-GG-N).

4. Attach the male TNC (or N-Type) connector of the coaxial 

cable to the antenna’s TNC connector (N-Type for GPS-702-
GG-N).

5. Attach the other end of the coaxial cable to the antenna input 

port of the receiving device, which must provide power as 
detailed in the SPECIFICATIONS section of this guide. All 
NovAtel GPS receivers provide the necessary power 
through their antenna RF connectors.

The GPS-702-GG, GPS-701-GG and GPS-702-GG-N are 
designed to withstand the elements, including rain, snow, and 
dust. However, to ensure your antenna performs optimally, keep 
the radome (top surface of the antenna) clean and brush off any 
ice and snow. In addition, ensure the TNC (or N-Type) connector 
remains clean and dry and replace the dust cap when a cable is 
not connected. 

5/8  x 11 

thread

"

 3/8  - 7/8 9 - 22 mm

"

"  (

)

Mount

Metal 

adapter

Jam nuts 

or flange

Coaxial 

cable

702-GG only

3 dB pass band (typical)

L1: 1588.5 

±

 23.0 MHz

L2: 1236.0 

±

 18.3 MHz

Out-of-band rejection (typical)

± 

100 MHz

± 

200 MHz

30 dBc
50 dBc

Gain at zenith (

θ

 

= 90°) (min)

L1: +5 dBic

L2: +2 dBic

Gain roll-off (zenith to horizon)

L1: 13 dB

L2: 11 dB

LNA gain (typical)

27 dB

Polarization

Right-hand circular

Noise figure (typical)

2.5 dB

L1-L2 differential propagation 
delay (maximum)

5 ns

Nominal impedance

50 

Ω

VSWR

≤ 2.0 : 1

Input voltage

4.5 - 18.0 VDC

Current (typical)

35 mA

Diameter

185 mm (7.28

"

)

Weight

500 g (17.6 oz)

Maximum altitude

9000 m (29527.5 ft)

Operating temperature

-40°C to +85°C (-40°F to +185°F)

Storage temperature

-55°C to +85°C (-67°F to +185°F)

Vibration

Random: MIL-STD-202F Method 

214, Test Curve A

Sine:

SAEJ1211, Section 4.7

Salt spray

MIL-STD-810F Method 509.4

Ingress protection

IPX6 and IPX7