mariano,
you cannot do SFH on only 5 frequencies.. even if you have just one hopping TRX, you’d need at least 6 or 7 frequencies to achieve good quality (in SFH1x1).
in 1×3, with 5 frequencies, you could have just one hopping TRX max.
could you write down the radio configuration of this cell, exactly ?
regards,
pix