How do I set up a base station?

Set up the base station using either the tripod or T-bar mounting method. You must use an external radio antenna kit for the internal 450 MHz or 900 MHz radio. To avoid interference between the 900 MHz radio and GPRS transmissions, do not mount the external radio antenna within 1 m (3.3 ft) of the GSM antenna.

How should a base station antenna be installed?

The hardware installation guidelines are limited but important for reliable base station performance. The base station antenna should be installed in open sky conditions, away from external influences that hinder the direct line of sight between the antenna and the GNSS satellites.

Where should an antenna be installed?

In general, this means that the ideal antenna installation is near the centre of the work area. For larger work areas (several 10’s of km’s), it is advised to place several base stations for optimal performance and easy selection of the nearest base station.

Where should a GNSS antenna be mounted?

The GNSS and radio antennas are normally mounted on a permanent structure on the roof of the building, where they are high and clear from obstructions and where the radio antenna can provide the maximum range of operation. Trimble recommends that you use the Trimble Zephyr 3 Base antenna.

Can a SSB antenna be used as a base station?

Yes, with a proper 12V DC power supply (3-5 amps minimum) and base antenna system. However, dedicated base stations typically offer better features, ergonomics, and performance for home use. Typical range is 15-25 miles for local communications. With SSB and optimal conditions, 50+ mile contacts are possible.

Where is the antenna set up?

Depending on how the reference position is determined (which is explained in the next article in this series), the antenna may be set up on top of a point for which the coordinates are known, such as a geodetic control point.