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Installation
Dual-frequency: GPS-702-GG (Pinwheel
ANT-C2GA-TW-N (Choke Ring)
L1/L2, L1/L5
Further information is available on the complete portfolio of antenna offerings by visiting the NovAtel web site
(www.novatel.com). Please contact your NovAtel dealer for pricing and purchasing information.
1.1.4
Choosing a Coaxial Cable for the Antenna
An appropriate coaxial cable is one matching the impedance of the antenna and receiver being used (50 ohms)
and whose line loss does not exceed 10.0 dB. If the limit is exceeded, excessive signal degradation occurs and the
receiver may not be able to meet its performance specifications. NovAtel offers a variety of coaxial cables to
meet your interconnection requirements, including:
•
5, 15, or 30 m RF cables with TNC male connectors on both ends (NovAtel part numbers C006, C016
and C032 respectively)
Contact your local NovAtel dealer for advice about your specific configuration. Should your application require a
cable longer than 30 m, refer to the NovAtel application note APN-003 RF Equipment Selection and Installation
at our web site
http://www.novatel.com/support/knowledge-and-learning/published-papers-and-documents/
application-notes/or contact NovAtel Customer Service directly.
High-quality coaxial cables should be used because a mismatch in impedance, possible with lower quality cable,
produces reflections in the cable that increase signal loss. Though it is possible to use other high quality RF
cables, the performance specifications of the GPStation-6 receivers are warranted only when used with NovAtel-
supplied accessories.
1.1.5
Power Supply Requirements
This section contains information on the requirements for the input power to the receiver. Refer to "Technical
Specifications" on page 73 for more power supply specifications.
If the supplied voltage drops below the minimum specification, the receiver suspends
operation. If the supplied voltage is above the maximum specification, the receiver may
sustain permanent damage and the Warranty becomes void (refer to the "Warranty" on page
11 for details).
The receiver is designed to prevent internal damage when subjected to a reverse polarity power connection. It
also provides protection from short over voltage events. Use appropriate fuses or current limiting as a safety
precaution on all power lines used. Use a sufficient gauge of wire to ensure the voltage at the connector is within
the requirements.
1.1.5.1
GPStation-6 Enclosure
The provided power cable and the accessory power adapter for the GPStation-6 is a 12 V power adapter with a
built-in slow-blow fuse for use with a standard 12 VDC power outlet.
If a different power supply is desired, the input range required is +11 to +18 VDC. The type of connector required
to mate with the receiver's power connector is a 4-pin LEMO socket connector labeled PWR. The supply should
be capable of 12 W.
GPStation-6 User Manual Rev 2
TM
Triple-frequency: GPS-703-GGG
),
TM
(Pinwheel
), GNSS-750 (Choke Ring)
L1/L2/L5
16
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