Siretta tango through hole mounting antennae siretta tango195msmamsmamss20 the siretta tango 19 comes with a screw base for through hole mounting on a panel surface with its additional adhesive base this dual mounting mechanism provides a very firm method of mounting the tango 19 is a combination antenna it has two antennas built into a single package one of these is an active gps antenna with a low noise amplifier lna to boost performance and provide strong satellite signal str