Siretta mike magnetic mounting antennae siretta mike1b3msmamss20 the siretta mike 1b is a frac14 wave magnetic mounting whip antenna tuned to quad band gsm gprs frequencies its strong magnetic base provides a versatile method of mounting allowing the user to manoeuvre the antenna to best optimise signal strength magnetic mounting antennas are ideal for quick and easy installations that can be adjusted at a later datecommon applications for this mag mount antenna include car par