Hi Edielson

I believe the default transmission power of tmote sky in cooja is the

maximum available radio output power level which is 31. In any case you can

control transmission power level according to your needs using the function

call cc2420_set_txpower(desired_power_level), where desired_power_level

could be any of the following values (in the increasing order of intensity):

3, 7, 11, 15, 19, 23, 27, 31

Best Regards

Hi Edielson

I believe the default transmission power of tmote sky in cooja is the

maximum available radio output power level which is 31. In any case you can

control transmission power level according to your needs using the function

call cc2420_set_txpower(desired_power_level), where desired_power_level

could be any of the following values (in the increasing order of intensity):

3, 7, 11, 15, 19, 23, 27, 31

Best Regards

Hi, Again Edielson

(Note: If you just want to increase the transmission range of ALL nodes,

you can do so in the Visualizer plugin, by activating the radio medium

skin, and right-clicking a node.)

The default output power COOJA simulates is whatever Contiki is

configured to use (which is by default the maximum: 0dB).

COOJA alters the transmission range of simulated nodes depending on the

configured tx power.

You can change Contiki's transmission power using:

--------

/**

* \param power Between 1 and 31.

*/

void cc2420_set_txpower(uint8_t power);

int cc2420_get_txpower(void);

#define CC2420_TXPOWER_MAX 31

#define CC2420_TXPOWER_MIN 0

--------

This is useful if you want different nodes to have different range, but

do not want to use another simulated radio medium (more difficult to

configure).

:)