The nRF905-EVBOARD

[Suleyman]

Hello,

I've purchased 2xnRF905-EVBOARD
I made some test with a spectrum analyzer. The output of the module is nearly 10dBm as mentioned in the datasheet. I connect the antenna given with The nRF905-EVBOARD. In transmit mode along the antenna output power is -5dBm. Maybe this can be relative not real power. I make test procesure everything fixed in place and try to increase the power radiated from the antenna. Seems impossible to even get to 0dBm. I purchased several 868Mhz antenna in order to test. same results. What I should do to increase the radiated power with nRF905-EVBOARD. I know that if I can increase the power measured from the antenna to 0dBm my range will increase. At least I should get about half of the power feeded to the antenna am I right ? Getting 10dBm power from the module and getting nothing from the antenna is deceaving. any suggestions.

best regards

[ketiljo]

Hi

It would help if you can describe your setup when you do radiated measurements. You need a calibrated anechoic chamber (reflection free room) to do this properly.