Real-Time Performance-Horizontal 5m(16.5ft. + 2ppm) Azimuth-Observation time: Ranges fro 20 to 60 minutes depending on distance between ProMark2 receivers and other environmental factors. Specifications for this system: Ashtech Technology GPS Satellite Tracking-10 Independent Channels-L1 C/A code and full wavelength carrier WAAS/EGNOS Satellite Tracking-2 Additional independent channels Accuracy Specifications Static Survey Performance-Horizontal. tapes 1 tribrach 2 users guides 1 users guide on CD 1 Ashtech Solutions CD with Serial Number. 2 have connectors for external power 4 antenna extensions 4 washers 4 cases 4 H.I. 4 GPS Units 4 zipper carrying bags 2 download cradles with cable 4 antennas 4 antenna cables 4 pole cradles. The other units use the normal 2 AA batteries, or external pack. The external battery pack for this unit uses 4 AA batteries.
All 4 units are working normally, but 1 of the units will only work with the external battery pack, which is included.
Set of 4 Ashtech Promark 2 GPS units with accessories.
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