Delta X. User Manual11WarningsThe spectrum analyzer's input attenuator and front end switches are sensitive to Electro-StaticDischarge (ESD) and have a damage level just above +20 dBm peak. Cases of breakage due to this reasonwill not be accepted under the product's warranty.Some common events which may lead to front end damage and the loss of warranty include: Applying more than +20 dBm peak power, such as an antenna exposed to a radar pulse or usednear a signal exceeding 2 Watts (nonlinear junction detector, transceiver) ESD from a passive antenna, either from discharge to an antenna element, or from connecting alarge antenna or cable which has built up a static charge Connecting to an active antenna which is already powered upThe general recommendations are: Never connect any signals or outputs of active equipment directly into the INPUT connector ofthe spectrum analyzer Do not use active antennas Do not turn on 2-5 Watt VHF/UHF transceivers and NLJD (nonlinear junction detectors) in aclose proximity to the antenna