Good afternoon,
I'm developing a low power radio stack based on SPIRIT1. I encountered a strange behavior in the radio, using the SPIRIT1_Library from ST. I positioned two board within 5cm between each other and using the function "SpiritQiGetRssi" I cannot get more then -20dbm at reception. The module I'm using is SPSGRF-868 (chip antenna version) with 10dbm output power, FSK, 38400 baudrate, 100k channel space, 20k freq dev, 100k bandwidth. I tried with different combination but still the receiving power seems to low to me. I expected at least something near -5dbm.
Anyway, moving the modules 50cm apart further drop the receiving RSSI to -79dbm, and after less than 10m the signal reaches -90dbm.
Any suggestion or possibly a fix?
Regards,
Fabio
