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From: Arpit Rai <whalesurf@gmail.com>
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Subject: [Bluez-users] Link Quality between 2 Bluetooth USB Dongles
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Date: Mon, 24 Oct 2005 22:34:35 +0800

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Hi!
 I'm doing a project on indoor positioning using bluetooth.

I've installed Linux(Fedore Core 4) on my comp and the Bluez Protocol Stack
to get the value of the signal strength between two Bluetooth USB dongles.
I've connected two Bluetooth USB dongles to one computer(have the USB
extension cables to increase the distance between the two dongles).When I
run the command 'hcitool lq <bdaddr>' to get the value of the link quality
between the two dongles,it is always 255.Even if I increase or decrease the
distance between the two dongles,the LQ remains constant at 255.The RSSI
value changes but this change is abrupt and does not seem like a good
measure of the signal strength. Any idea as to what could be the possible
problem with the LQ and any solutions?
 The adaptors I'm using are: Billionton Version 1.2 Bluetooth USB Adaptors
(P/N: USBBT02 (UBTBR2-B)).
 Thanks
 Arpit

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<div>Hi!</div>
<div>&nbsp;</div>
<div>I'm doing a project on indoor positioning using bluetooth.</div>
<div><br><span>I've installed Linux(Fedore Core 4) on my&nbsp;comp and the =
Bluez Protocol Stack to get the value of the signal strength between two Bl=
uetooth USB dongles. I've connected two Bluetooth USB dongles to one comput=
er(have the USB extension cables to increase the distance between the two d=
ongles).When I run the command 'hcitool lq &lt;bdaddr&gt;' to get the value=
 of the link quality between the two dongles,it is always=20
255.Even if I increase or decrease the distance between the two dongles,the=
 LQ remains constant at 255.The RSSI value changes but this change is abrup=
t and does not seem like a good measure of the signal strength. Any idea as=
 to what could be the possible problem with the LQ and any solutions?
</span></div>
<div><span></span>&nbsp;</div>
<div><span>The&nbsp;adaptors I'm using are: Billionton Version 1.2 Bluetoot=
h USB Adaptors (P/N: USBBT02 (UBTBR2-B)).</span></div>
<div><span></span>&nbsp;</div>
<div><span>Thanks</span></div>
<div><span></span>&nbsp;</div>
<div><span>Arpit</span></div>

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