Specifications

2. Attach the vertical extension bar and a tribrach adapter to

the GPS antenna.

With the GPS antenna in hand, attach the included verti-

cal extension bar to the 5/8-11 thread on the bottom of

the antenna. Attach a tribrach adapter to the other end of

the vertical extension bar. If using a fixed-height GPS tri-

pod rather than a conventional tripod, a tribrach adapter is

not required

3. Place the GPS antenna assembly on the tripod.

Be careful not to disturb the tripod when mounting the

antenna assembly.

4. Place the ProMark3 receiver into the field bracket.

With the field bracket in hand, insert the two flexible

hooks located at the top of the bracket into the slots on

either side of the loudspeaker grid at the back of the

receiver and then tilt the receiver into place.

5. Attach the field bracket / ProMark3 combination onto the

tripod.

6. Connect the GPS antenna cable to the unit

7. Measure and record instrument height (HI) of GPS

antenna.