Novatel Car Stereo System 702 GG User Manual

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.  
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).  
SPECIFICATIONS  
GPS-702-GG, GPS-701-GG and GPS-702-GG-N  
USER GUIDE  
RF  
L1: 1588.5 ± 23.0 MHz  
L2: 1236.0 ± 18.3 MHz  
3 dB pass band (typical)  
Out-of-band rejection (typical)  
± 100 MHz  
The GPS-702-GG, GPS-701-GG and GPS-  
702-GG-N are active antennas designed to  
operate at the following frequencies (in  
MHz):  
INSTALLING THE ANTENNA  
30 dBc  
50 dBc  
After a site has been selected, install the antenna as follows.  
± 200 MHz  
Coaxial  
cable  
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.  
L1: +5 dBic L2: +2 dBic  
Gain at zenith (θ = 90°) (min)  
Gain roll-off (zenith to horizon) L1: 13 dB  
L2: 11 dB  
GPS L1 (1575.42) and L2 (1227.60)  
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.  
LNA gain (typical)  
Polarization  
27 dB  
Glonass L1 (1598 - 1611.5) and L2 (1242.5 - 1254.3)  
Right-hand circular  
2.5 dB  
This guide provides the basic information you need to install and  
begin using your new antenna.  
Noise figure (typical)  
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.  
L1-L2 differential propagation  
delay (maximum)  
5 ns  
ANTENNA CARE  
ADDITIONAL EQUIPMENT REQUIRED  
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.  
The equipment listed below is required to set up the GPS-702-  
GG, GPS-701-GG or GPS-702-GG-N antenna:  
Nominal impedance  
VSWR  
50 Ω  
2.0 : 1  
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)  
POWER  
Input voltage  
4.5 - 18.0 VDC  
35 mA  
A 1" open-end wrench  
Coaxial cable with a male TNC connector (N-Type con-  
nector for GPS-702-GG-N).  
Current (typical)  
Metal  
adapter  
PHYSICAL  
ELEVATION GAIN PATTERN  
5/8" x 11  
3/8" - 7/8" (9 - 22 mm)  
thread  
Diameter  
Weight  
185 mm (7.28")  
500 g (17.6 oz)  
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.)  
Jam nuts  
or flange  
ENVIRONMENTAL  
Mount  
Maximum altitude  
9000 m (29527.5 ft)  
SITE SELECTION GUIDELINES  
The metal adapter on the bottom of the antenna is fixed in place.  
Operating temperature  
Storage temperature  
-40°C to +85°C (-40°F to +185°F)  
-55°C to +85°C (-67°F to +185°F)  
Do not attempt to remove it.  
Before installing the antenna, select a site that as closely as  
possible meets the following conditions for optimal performance:  
Random: MIL-STD-202F Method  
214, Test Curve A  
3. Remove the dust cap from the antenna’s TNC connector (N-  
Type connector for GPS-702-GG-N).  
Vibration  
An unobstructed line-of-sight from horizon to horizon  
and at all bearings and elevation angles  
Sine:  
SAEJ1211, Section 4.7  
Salt spray  
MIL-STD-810F Method 509.4  
IPX6 and IPX7  
Ingress protection  
702-GG only  
 

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