Siretta delta direct connect antennae siretta delta2cxsmamsra23 the delta 2c from siretta is a direct connect stubby antenna tuned to the quad band gsm gprs frequencies measuring only 48mm in length the delta 2c is sirettas smallest stubby antenna despite its small size the delta 2c achieves a peak gain of 215 dbi and performs at a high level outperforming most stubby antennas in the market the delta 1c offers a small and compact cable free antenna solution that is ideal for u