Figure 1.

Flow diagram of three ‘rapid fix’ technologies currently used in animal applications. All three rapid fix technologies require post-processing to obtain the GPS-based locations, usually after the files are recovered by the researcher. Snapshot receivers can obtain their data in sub-second exposure times but the resulting large files must be further processed to be small enough to be transferred via wireless technologies currently in use. QFP can provide rapid fix (in 5–7 s), or when conditions allow, a standard GPS fix (in 20–30 s).