di-GPS® is a registered trademark or a trademark of Dawn Technology Limited
Nikon D2HS, D2X, D2XS, D200, D3, D3X, D300, D300S and D700 are registered trademark or a trademark of NIKON CORPORATION in the United
States and/or other countries.
Fujifilm and S5 Pro are registered trademark or a trademark of FUJIFILM U.S.A., Inc. in the United States and/or other countries.
Canon and EOS are registered trademark or a trademark of Canon Inc. in the United States and/or other countries.
Products and brand names are trademarks or registered trademarks of their respective companies.
V1.5
12
Last Fix Repeat (“LFR”)
di-GPS® Pro L continuously reports the last fix when the GPS signal is lost or the unit is
out of the GPS coverage. With this new function, di-GPS® Pro L is able to provide the
last fixed GPS data with current UTC date/time to the DSLR camera even if there is no
GPS signal, for example inside buildings.
During initialization, di-GPS® Pro L needs to obtain a first fix before the LFR works
properly. Once the GPS unit has a good position fix, the GPS will continuously report
the last fix with current UTC date/time if the GPS signal is lost or the unit is out of GPS
coverage. Once the new fix available, the GPS unit will immediately report the updated
GPS position to the camera.
After a power reset (power off….on), di-GPS® Pro L reads the last GPS position in
internal memory. If there is no GPS data in the internal memory or the internal clock is
out of battery, di-GPS® Pro L will
report no fix available. The camera’s GPS icon will
flash and no GPS data will be recorded. The GPS unit will report the last recorded GPS
data in the internal memory with current UTC date/time after power reset. The internal
Real Time Clock (RTC) is powered by the built-in super capacitor. The operation time of
built-in super capacitor is about 4 hours at room temperature after the GPS unit turned
off. Exhaustion of power of super capacitor may cause incorrect RTC. Turn on the
GPS unit and the super capacitor will be charged in a few minutes. The last good fix will
be recorded in each photo until a new fix available.
Some models of the DSLR camera (Nikon D7000, D700, D3, D3S & D3X….) support
the function “Use GPS to set camera clock”. To prevent the incorrect time set, disable
the “Use GPS to set camera clock” function under the GPS menu or turn on the GPS
unit and wait for new fix before turn on the camera.
Photo A
Photo B
Photo C
Photos A, B, C were shot in three different indoor locations with no satellites in view. Last position in the memory repeated with a
CURRENT UTC time.