The Delta 2D is a low cost direct connect, stubby antenna tuned to the quad band GSM / GPRS and 3G frequencies. Despite its small size of 51mm in length, it still performs at a high level that most stubby antennas cannot compete with. The Delta 2D offers a small and compact antenna solution that is capable of being used in extreme temperatures given its very wide operating temp range. The Delta 2D is commonly used for applications such as: car park & utilities metering, road traffic monitoring and numerous other M2M applications communicating via GSM, 3G or ISM frequencies.
The Delta 2D is robustly made, making this antenna usable as a very mainstream performer. Its wide operating frequency band allows for worldwide cellular applications over the quad band GSM / GPRS networks and also high data transfer rates via 3G / UMTS. The Delta 2D has a general gain of 2 dBi, a respectable benchmark for such a small antenna.