it s a mail of urs wich is hepful for you :
IHi,
This is what I previously wrote about reducing TX power:
In Tinyos 2 with a platform with the cc2420 (such as MicaZ and the
Tmotes), you can use either a flag in the makefile:
CFLAGS += "-DCC2420_DEF_RFPOWER=1"
or you can dynamically change the tx power at runtime (individually for
every packet) with something like (wire in the CC2420PacketC module):
call CC2420Packet.setPower(&rpacket, 1);
You'll have to issue that call for every packet prior to sending it.
Reducing the TX power to its minimum I get a maximum transmission range
of roughly 3 meters under ideal conditions.
Cheers,
Urs
From: "DAE HEE KIM" <[EMAIL PROTECTED]>
To: [email protected]
Subject: [Tinyos-help] How can I adjust radio(reduce or increase) range
ofmote (micaz) ?
Date: Wed, 18 Jul 2007 17:53:03 -0400
Hello.
This question may be very basic thing. How can I increase or decrease radio
range of micaz(mote)?
My situation
TinyOS 2.0.1 (Linux - Fedora core 6)
Micaz (2.4 GHz)
MIB510 programming board.
Thanks.
--
DaeHee Kim (Danny)
Department of Computer Science, State University of NewYork at Binghamton.
Cell Phone : 1-607-321-9574
Address : 13-A Andrea Dr, Vestal, NY, 13850
email-address : [EMAIL PROTECTED], [EMAIL PROTECTED]
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