Thanks Paul, will try covering the antenna with tin foil.
Can anyone verify what is the transmission radius of a IRIS mote (RF230 radio)
with minimum TX power setting
i.e. RF230_DEF_RFPOWER = 0xF ?
Abhijeet
________________________________
From: Paul Johnson <[email protected]>
To: Abhijeet Singh <[email protected]>
Cc: [email protected]
Sent: Thu, 14 January, 2010 4:35:03 PM
Subject: Re: [Tinyos-help] Change default transmission power RF230 (IRIS MOTE)
Abhijeet,
I've looked at the RF230 manual, and 0xF is the lowest power setting. If this
transmission range is not low enough, then the only thing I can think of that
you can do is attenuate the signal at the antenna. You could try either
covering the antenna in tin foil, or removing the antenna altogether.
-Paul
Abhijeet Singh wrote:
> Hello,
> i was able to make it work.
> There was a change in RF230LayerP.nc /
> RF230DriverLayerP.nc, after which the problem was resolved.
> http://mail.millennium.berkeley.edu/pipermail/tinyos-2-commits/2009-March/008561.html
>
> The transmission power range for RF230 is (0-15) or (0x0 to 0xF) according to
> the RF230 manual.
> the minimum power does not serve my application. is it possible to reduce it
> further?
> Abhijeet
>
>
>
>
>
>
>
> ------------------------------------------------------------------------
> *From:* Abhijeet Singh <[email protected]>
> *To:* [email protected]
> *Sent:* Thu, 14 January, 2010 2:43:30 PM
> *Subject:* [Tinyos-help] Change default transmission power RF230 (IRIS MOTE)
>
> Hello,
>
> I have gone through the mailing archive and read about changing the TX power
> for RX230 radio. There seems to be two ways.
> My application requires a reduced default TX power for the RF230 radio. I do
> not want to change it on a per packet basis.
> adding PFLAGS+=-DRF230_DEF_RFPOWER=15 to my Makefile, does not work. I went
> ahead and changed the RF230_DEF_RFPOWER value to 15 in HplRF230.h, which also
> does not work.
>
> I am using the BlinkToRadio application to verify if the transmission power
> is getting reduced.
>
> Changing the default power on my Micaz mote (CC2420 radio) worked and i could
> confirm it using the BlinkToRadio application.
>
> any suggestions what i am doing wrong?
>
> Thanks in advance
> Abhijeet
>
>
>
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