[gps-talkusers] Re: Senderos take on the Freedom Keychain 2000

Hi,
The one we tested was the 2000.  You need to be careful when searching
for the freedom keychain, apparently there's a freedom key chain that
uses the older chipset.  I bet it's the first generation of the
receiver.  
The freedom key chain 2000 uses the MTK chipset with channels.


Chris


>After finally reading the specs on the Freedom Keychain GPS receiver,
>it turns out that the Freedom is using the SiRF III chipset, which is
>the same used in the Holux GPSlim236 and Holux GPSlim240, which is the
>stick of gum size receiver of the 236.
>
>On 12/24/08, Chris Grabowski <chris@xxxxxxxxxxxxxxxx> wrote:
>> In November of 2008 Sendero purchased the freedom keychain GPS
>> receiver  and did our own independent tests of this
>> receiver and this is what we found....
>>
>> When placing the receiver on a desk by a window using the odometer
>> function of the Sendero GPS we were able to watch the distance
>>>accumulate.  The receiver was not moved within a 5 minute time fraime
>> the receiver s distance cumulated a quarter of a mile.
>> when the receiver is stationary and is accumulating distance this
>> shows that the receiver is more susceptible to multi path
>> environments.  If it is accumulating distances when in a controlled
>> situation with little to no multi path it will be more susceptible to
>> multi path in city's such as New York or San Francisco.
>>
>> Another test, we walked at pedestrian speeds in a rectangle that's
>> directions are East, South, West, then finally North.  Tests were done
>> with the receiver clipped to the shoulder strap and again in the back
>> pocket.
>>
>> The receiver had a hard time maintaining the direction.  For example
>> when the receiver went from west to north for two blocks  the receiver
>> thought it was heading North West instead of due North.  The receiver
>> finally changed direction once it made the final right and was heading
>> East once again.
>>
>>
>> Based on our results Sendero does not recommend this receiver.
>> Chris Grabowski
>> - Customer Support and Product testing
>> Sendero Group
>> "The GPS company." Also, distributors of the mPower, PK, Victor
>> Stream, Voice Sense, Braille Sense, KNFB Mobile Reader, Talks, Miniguide and
>> ID Mate
>>
>> Phone: 888-757-6810 EXT. 113
>> Email: chris@xxxxxxxxxxxxxxxx
>>
>>
>
>
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Chris Grabowski
- Customer Support and Product testing
Sendero Group
"The GPS company." Also, distributors of the mPower, PK, Victor 
Stream, Voice Sense, Braille Sense, KNFB Mobile Reader, Talks, Miniguide and ID 
Mate

Phone: 888-757-6810 EXT. 113
Email: chris@xxxxxxxxxxxxxxxx

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