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REVIEW: Proporta Freedom Keychain GPS SiRF III Receiver
Posted by Arne Hess - on Wednesday, 10.10.07 - 16:21:29 CET under 08 - Reviews - Viewed 21790x
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Do you remember Proporta's new GPS receiver, which claimed to be the smallest GPS receiver available as of today?
Well, today I've received a review sample, thanks to Proporta and it's indeed pretty small. Well, it's not as small as I thought (or better hoped) but nevertheless, it's definitely an interesting GPS receiver for most Windows Mobile Standard/Smartphone users, since Windows Mobile Standard smartphones doesn't features GPS receivers yet as well as an interesting addition for Pocket PC Phone users like HTC Touch/HTC Touch Dual owners.

The Proporta Freedom Keychain GPS Receiver features a SiRF III chip which supports up to 20 simultaneous satellite channel connections as well as the Bluetooth 2.0 SPP serial port profile which works within a range of 10 m. While the Proporta GPS receiver is quite small, the rechargeable 420 mAh Lithium Polymer battery is promised to provide a solid working time of up to 9 hours at a weight of 30 g only! So this GPS receiver fits perfectly into your pocket and can be easily carried as a keyring pendant.

The sales pack includes everything you need to start including the GPS receiver itself, a USB to mini USB cable charger which charges the GPS receiver from any Notebook or PC as well as a car charger.

The GPS receiver is indeed small and sports two LEDs (an orange and a blue one) on top which indicates the GPS, battery and charging as well as Bluetooth status. On the left, the receiver sports the power switch:

The receiver is charged via a mini USB jack which is protected by a flap:

In action, the Proporta Freedom Keychain GPS SiRF III Receiver looks like this and even if I made this photos within my office, 3 meters away from the window, the receiver was able to hold contact to 4 - 7 satellites which means it even works indoors, as long as you have a line of sight to the sky:

On the photo above, the Proporta Keychain GPS Receiver connected to a O2 Xda star which is running Google Maps for Windows Mobile.

Final Conclusion

I haven't tested the exact work time yet but one is for sure - the rest keeps the promises Proporta made with its initial announcement. It's incredible small and the size of all my other GPS receivers was one reason why I never had a GPS receiver with me when I was in need. Now, since the GPS receiver is attached to my keychain, I'm quite sure that I will have it with me 99 % of the time which makes sense. I always have my keychain and my mobile phone with me and this is the perfect combination.
As initially mentioned, the Proporta Keychain GPS Receiver is the perfect addition for Windows Mobile Smartphone users since most (Windows Mobile Standard) Smartphones lacks GPS functionalities today and also many popular Pocket PC Phones, like the HTC Touch and Touch Dual lacks GPS as well. And GPS can become handy, even if you don't use routing software, if you use the freely available Google Maps for Windows Mobile or Windows Live Search. Both works perfectly on your Windows Mobile device and can show you your current location as well as guide you to your destination, which is very handy in foreign cities and countries.

The Proporta Keychain GPS Receiver is available from Porporta for 99.95 Euro/US$ 129.95 and a valuable accessory for travelers and commuters.

Cheers ~ Arne

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