The present invention relates to a method for tuning a radio filter. The filter
comprises an input connection, an output connection and at least two resonator
modules coupled in cascade, each having a running mechanism and a probe. A first
resonator module is connected to the input connection and a final resonator module
is connected to the output connection. The filter is adapted to receive at least
one signal within a frequency range. The method comprises essentially two steps:
coarse tuning, which is dependent on the frequency content of the received signal(s),
and fine tuning, which is dependent on a calculated deviation between a set value
vector and a measured signal parameter vector. A relationship between the set value
vector and the signal parameter vector is established for calculating the deviation.
The invention also relates to a radio filter and a system comprising such a radio filter.