External GSM antenna for difficult environmental conditionsThe external GSM antenna is installed outside the Secvest control unit housing. It improves the GSM level in difficult environmental conditions.To ensure good signal strength, the following positioning and installation instructions should be observed:.Mount the antenna as high as possible and as far away from the alarm system as possible.
.Keep at least one meter away from metal objects.
.Make sure that at least 25 cm of the cable runs horizontally away from the antenna.