Note

The following illustrations are meant to serve as a guide in providing the basic ideas necessary to create an effective GPS station. Each project site is different and therefore the GPS setups will require modifications to suit the particular environment.

GPS Site Selection Guidelines

1. Rule of thumb: Ideally, for every 100 ft (30 m) from the antenna, the nearest obstruction should be no more than 20 ft (5 m) high.

2. Avoid areas with reflective surfaces nearby (glass, metal walls..etc).

3. AC Power is preferred when available.

4. When implementing a local wireless network, make sure line-of-sight is available to the Access Point.

5. Reference stations should move less than 1/10^th the desired position resolution. The depth of the station required to achieve this condition will vary from site to site. Attach to bedrock when possible.

6. For monitored stations, attach the antenna mounting bracket as closely as possible to the structure of interest.

Structural Monitoring Installation

• GPS Antenna

• AC Power
• Wi-Fi
• Enclosure

Soil Monitoring Installation

Concrete Pier

• GPS Antenna

• AC Power
• Wi-Fi
• Enclosure

Master Tower

• GPS Antenna

• AC Power
• Wi-Fi
• Enclosure

Master Tower

• GPS Antenna

• Solar Power
• Wi-Fi
• Enclosure

Post

• GPS Antenna

• Solar Power
• Wi-Fi
• Enclosure

Bedrock Installation

Wi-Fi Access Point Installation

Master Tower

• Wi-Fi (Omni Directional Antenna)

• AC Power
• Enclosure

Master Tower (Ultra Long Range)

• Wi-Fi (Directional Antennas)

• AC Power
• Enclosure