ok guys,
some updates,
bought a new range extender tplink wr830e for about 35$,
set it up with my ar drone using ar free flight app and powered by 8cell nimh 4200mah ,
and today i went fpv first time,
thought it was just around my house in the safety and comfort of low altitude mode,
i think every hobbyist should try fpv for once in their life,
and yes the range extender does work, alot cheaper and better than rc radio mod or miru mod,
cheers guys,