User's Manual

5 Setting up the Receiver
44 SPSx80 Smart GPS Antenna User Guide
Fixed height tripod setup
A fixed height tripod setup is similar to a tripod setup, but is simplified by the central
leg of the tripod, that is placed directly on the control point. If the central leg is leveled
accurately, the fixed height tripod is quick and easy to set up, and provides an accurate
way to measure the true antenna height.
1. Set up the tripod over the control point.
2. Attach the GPS antenna to the head of the tripod.
3. If using an external high-gain radio antenna, mount the radio antenna to the
radio antenna bracket that is attached to the head of the tripod (beneath the
GPS antenna). See Figure 5.4.
4. If using the SPSx50 Modular GPS receiver, hook the receiver to the center leg of
the tripod, using the tripod clip.
5. If using the SPSx80 Smart GPS antenna, you can mount the antenna using the
25 cm spacer rod (supplied with the SPSx80 Base Station Accessory kit) so that
the radio antenna clears the head of the tripod.
Figure 5.4 Fixed height tripod setup for the SPSx50 and SPSx80
SPSx80 with an internal 450 MHz
TX radio on a fixed height tripod
SPSx50 with an external high-
gain radio antenna
SPSx50 with a low-gain “rubber
duck” antenna
Radio antenna bracket