Output selection of multi-output filter

An apparatus comprising:

• a first filter arranged to interface a first pole terminal with a first throw terminal;
• a second filter arranged to interface a second pole terminal with the first throw terminal;
• and
• a third filter arranged to interface the second pole terminal with a second throw terminal.

A memory storing a program of machine readable instructions executable by a controller to perform actions comprising:

• determining an operational condition for radios interfaced to at least one antenna via a filtering arrangement;
• determining filtering characteristics for at least one tunable filter of the filtering arrangement that are associated with the determined operational condition;
• and
• applying control signals which set the determined filtering characteristics to the at least one tunable filter of the filtering arrangement at a time the operational condition is active;
• where the filtering arrangement comprises:
• a first filter arranged to interface a first pole terminal to a first throw terminal;
• a second filter arranged to interface a second pole terminal to the first throw terminal;
• and
• a third filter arranged to interface the second pole terminal to a second throw terminal.

A method comprising:

• determining an operational condition for radios interfaced to at least one antenna via a filtering arrangement;
• determining filtering characteristics for at least one tunable filter of the filtering arrangement that are associated with the determined operational condition;
• and
• applying control signals which set the determined filtering characteristics to the at least one tunable filter of the filtering arrangement at a time the operational condition is active;
• where the filtering arrangement comprises:
• a first filter arranged to interface a first pole terminal to a first throw terminal;
• a second filter arranged to interface a second pole terminal to the first throw terminal;
• and
• a third filter arranged to interface the second pole terminal to a second throw terminal.