lot of 2 Motorola UT Plus Oncore Timing GPS Modules

1. Product Description
The Motorola UT Plus Oncore GPS receiver has the following basic features:
• L1 frequency C/A code receiver
• Searches for, acquires, and tracks satellites on 8 parallel channels; receiver will always attempt to
track the 8 satellites with the highest elevation angles
• Electrical and mechanical form factor equivalent to VP Oncore and UT Oncore
• Optimized signal processing for operation in foliage environments and urban canyons
• Position filter reduces abrupt changes to position due to constellation changes
• Serial input/output using the Motorola binary protocol
• Position, velocity and time solution:
− height referenced to WGS-84 ellipsoid or other user defined datum
− heading referenced to true north only
− time referenced to GPS time or UTC
• Acquisition times (TTFF - time to first fix):
− hot start: 20 s typical
(position, date, time, almanac, ephemeris and oscillator learning table)
− warm start: 50 s typical
(position, date, time, almanac and oscillator learning table)
− cold start: 450 s typical
(no stored information)
• Reacquisition times after view of satellites obstructed:
− after 15 s obstruction: < 1.0 s typical internal
3.0 s typical
− after 30 minute obstruction: 300 s typical
• 1PPS (One Pulse Per Second) output accuracy with SA on:
− normal mode: 130 ns (1 sigma)
− position-hold mode: 50 ns (1 sigma)




http://www.tapr.org/pdf/UT_Eng_Notes.pdf

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On Feb-09-09 at 13:26:27 PST, seller added the following information: