Siretta echo embedded antennae siretta echo501muflss15 the siretta echo 5 is a compact active gps embedded antenna measuring only 134 x 134 x 8mm this ceramic patch antenna is perfect for gps applications designed to include an embedded antenna that can produce high levels of performance despite its small form factorwith its built in low noise amplifier lna this active gps antenna has a slightly reduced gain of 18db required in certain circumstances for gps chipset compatibili