Siretta ECHO Series Embedded Antennas - Siretta ECHO1A/0.1M/IPEX/S/S/11, The Siretta Echo 1A is a GSM, 3G & ISM tuned PCB antenna, with an impressive level of performance across all frequencies despite being extremely compact. With a footprint of only 35 x 6mm, the Echo 1A is perfect for applications where internal space for components is limited or when using an external antenna is simply not appropriate. Its miniature design allows the antenna to be fixed to the inside of an enclosure or directly onto a PCB. Common applications include: waterproof or water-tight designs, portable solutions and general GSM applications that require a compact implementation.The Echo 1A is quad-band tuned antenna, designed to resonate to a high level at ISM 868MHz and 915MHz; GSM 850, 900, 1800, 1900 and 3G 2100MHz. It achieves a peak gain of 3.5dBi at 2100MHz (3G) making it a high performance, wide frequency band antenna, suitable for a host of wireless M2M applications that require an embedded solutio