Siretta oscar 20 4g 3g 2g yagi antenna siretta oscar20 5m smam s s 15 the siretta oscar 20 antenna is a high gain quad band 4g 3g and 2g antenna it is ideal for remote telemetry and cellular enabled wireless equipment and enables connectivity in remote environments where a point to point link is the only effective method of communication built from abs plastic the oscar 20 is designed for indoor or outdoor environments and comes complete with a hinged mounting bracket and 5 metres of cabl