- Tests Day One

We tested the Haicom 406BT-C with the Dell Axim X50v. We recorded all produced data for a pre-selected route with VisualGPSce (free edition) and later analyzed it with GPSLog. In order to measure the TTFF ("Time to First Fix" which is the time it takes for a GPS to determine its current position), we used GPSInfo "Cold Start" function. All tests ran continuously, under the same environmental conditions (night, clear sky, 15° C ) and installed in an Audi A4, 2004.

The Globalsat BT-338 had slightly better performance than the HI-406BT-C in terms of Average Signal Level (max/average) per satellite. On the other hand, the HI-406BT-C can "view" and "use" more satellites than the BT-338. The TTFF times are very close, under 45 secs, which is very good. The reported altitudes are very different however...

- Tests Day Two

Again we used our Dell Axim X50v, VisualGPSce, GPSLog and GPSInfo. All tests ran continuously, with the same environmental conditions (day, cloudy weather, 4° C) installed in an Audi A4, 2004. This time we also used an external antenna to see if there would be any difference.

Using an external antenna seemed to improve the performance of the 406BT-C since it returned lower TTFF times, more satellites "in view" and higher Average Signal Levels (max/average) per satellite, compared with the antenna-less results.