Due to the low power emission the range in Europe for the Spark is very poor... about 160 m only. I'll try with an antenna booster soon (ATENTION: FIRST TEST WAS DONE USING A 5,8 GHZ CHANNEL!!). UPDATE 2018.02.18: Today I've tested my Spark selecting a 2,4 ghz channel. I've reached easily 1 km!! and I returned home despite the Spark can fly more far, always flying in CE mode...
