Siretta echo embedded antennae siretta echo1401muflss15 the echo 14 from siretta is a multipurpose pcb embedded antenna ideal for wide band applications including quad band 3g and 4g measuring just 105 x 20 x 1mm this antenna is designed to be mounted internally whether on the inside of an enclosure or directly onto the pcb the echo 14 antenna is recommended for wide band applications or those using multiple technologies that require an all in one antenna solution common applicati