EMTAC BTGPS III Receiver D1599 12 channel GPS receiver module

Advantages: Bluetooth links in a flash, GPS links to satellite in a few seconds.
Disadvantages: Its a separate unit so there's two things to carry about.

...I dont have a 20 channel receiver however I do have a 12 channel receiver which came in the box with my Tom Tom Navigator 5 for PDA, whichi I use in my Treo 680 Smart Phone. The whole thing works perfectly and I couldn't ask for more as Sat Nav goes. The GPS receiver looks identical to the 20 channel one shown here and if this one works as well as mine does then you can't go wrong. It has a matt cover which makes it stay put where ever you place it on the dashboard and in use I've found that it picks up a signal very quickly and once linked to the PDA by bluetooth it keeps the signal so long as it can see just a tiny bit of sky. Once linked I take the unit off the dash and place it on the floor of the car in between the seats and it keeps the signal through motorway tunnels and even during a traffice halt under a bridge! It does link... Read review

Ciao members have rated this review on average somewhat helpful

Advantages: light, portable, good reception, accutate
Disadvantages: none

...A slim GPS Receiver that connect to your device using 'Bluetooth' a handy product that will enable your smartphone or windows mobile phone to connect to the GPS satalite network for trip guidence and other similar sat-nav tasks. I have used this with my O2 XDA mini phone and found it to be very reliable. I loaded the Destinator sat-nav software onto my phone, launched the application and swithched on the Holux receiver and once i had set up the pairing in my phone it was good to go! Reception was excellent and accuracy very good. In fact because it is so portable i was able to compare it with my friends Pergout car's factory fitted sat-nav and it beat it for accuracy hands down. I also use it with some Geocaching software for paperless caching - look up Geocaching on google if you want to know what it is? Some phones now have... Read review

Ciao members have rated this review on average helpful

Advantages: Easy to use,Reliable and flexible
Disadvantages: An extra item to carry around

.... GPS works by having a receiver that picks up the signal from the satellites and works out the position by how long the signal takes to reach the unit, for a 2D position you need a signal from at least 3 satellites and at least 4 satellites for a 3D position. Once this information transfer takes place the position can be calculated by means of Triangulation (comparing the signals from at least three different sources). Luckily the receiver will calculate all this information for you so no need to be a maths genius and the calculations are made in times of only milliseconds so no big delays and having to wait around for the position to be worked out. ~~~~Product Overview~~~~ This product is an external GPS receiver that connects via Bluetooth to any product that can run satnav software for example a mobile... Read review

Ciao members have rated this review on average very helpful