Antenna. The Videx 434 is a standard GSM antenna for 2G, 3G and 4G networks. It is compatible with any of the Videx range of GSM intercom modules and is supplied complete with an L bracket, a right angle SMA adaptor and fixings.. GSM antenna for 2G, 3G and 4G networks. Male SMA connection and separate SMA right angle adaptor included. 3 metre cable length. Compatible with any of the Videx range of GSM intercom modules