MacBook 13" BlueTooth vs. DECT
MacBook 13" BlueTooth vs. DECT
- Subject: MacBook 13" BlueTooth vs. DECT
- From: Uwe Schuss <email@hidden>
- Date: Sat, 25 Nov 2006 15:58:27 +0100
Hi All,
I've developed a scoring system for Taekwondo and using a MacBook 13"
and 5 or 7 referee devices. This system use BlueTooth for the data
exchange. The devices for the referees supports BlueTooth V1.1 and
can communicate up to 20m. Normaly the maximum distance between the
MacBook and the referee devices are up to 15m. So the referee devices
should not have a big problem with the distance. Five or seven of the
referee devices are connected to the MacBook at the same time.
This scoring system was used in many different environments (mainly
sports halls). And my observation is, that in all the cases in those
DECT (e.g. SIEMENS Giagaset) devices are installed the BlueTooth link
was unstable if the distance is more than 5m. The "old" iBook doesn't
interfered by DECT at all. In no environment the MacBook have (big)
problems the BlueTooth link at the iBook works absolutley stable at a
distance for up to 15m!
Summary of my observations with the BlueTooth link in environments
with DECT devices are available:
* MacBook 13" (internal BlueTooth) very unstable and the maximum
reachable distance is less than 5m
* MacBook 13" with D-Link DBT 120 no observable problems
* iBook (internal BlueTooth) no observable problems
In environments WITHOUT ANY DECT devices the MacBook 13" have no
problems to communicate with distances up to 12m with the referee
devices. This is not so good as the "old" iBook but my customers can
live with it.
- Have someone else made the same observations?
- Is there any solution to avoid the interference of the MacBook's
internal BlueTooth by DECT?
Thanks
:) Uwe
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