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Increase CC2538 range

Behnam Sh

Intellectual 675 points

Other Parts Discussed in Thread: CC2538

Hi

I tried to increase the range of CC2538 connection by using external antenna and calling ZMacSetTransmitPower(TX_PWR_PLUS_7); in void osal_run_system( void ) function, but nothing changed, the range is about 10 meter (line of sight) on my custom board.

Any idea?

over 10 years ago

0 YiKai Chen over 10 years ago

Guru 735685 points

Try to use API macRadioSetTxPower().

0 Behnam Sh over 10 years ago in reply to YiKai Chen

Intellectual 675 points

Same result. I does not use LNA, just external antenna and set mac radio on both 7 and 16 db (macRadioSetTxPower(7)) but nothing changed.

0 YiKai Chen over 10 years ago in reply to Behnam Sh

Guru 735685 points

If you use default TX power, what is the distance that your own PCB can have?

0 Behnam Sh over 10 years ago in reply to YiKai Chen

Intellectual 675 points

I get same range with 7 db power as default tx power! about 10-12 meter line of sight.

0 YiKai Chen over 10 years ago in reply to Behnam Sh

Guru 735685 points

It seems that there is something wrong with your custom PCB. You should check HW design first.