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Tuesday, 7 June 2011
Cambridge Swift Tower "Bird Scarer"
Contributed by Guy Belcher
As there is no mains power anywhere near the Swift Tower, we have decided to use a Bird Scarer, programmed with Swift attraction calls, powered by a 12 volt battery, recharged by a solar panel.
BS3 Bird scarer (programmed with Swift attraction calls) Run off a 75ah 12V leisure battery with a 5 watt trickle feed solar panel. There is a dawn/dusk light sensor and a 12V timer for maximum flexibility. Unless the timer is set it plays 5 minutes durations of calls at random during daylight hours. There is a volume control. The complete unit is weather proof.