The NE 900 true diversity receiver is offered as a single (NE 900 S), dual (NE 900 D) or quad channel receiver (NE 900 Q) in a metal enclosure with 99 pre-programmed UHF frequencies or 960 freely selectable frequencies per frequency range. Depending on environment and country regulations the system can be operated with up to 16 frequencies per frequency range simultaneously with no interference. The NE 900 D and NE 900 Q each also have an integrated antenna splitter.
On the front of the receiver is a headphone output with volume control for monitoring individual receiver channels. All other settings such as squelch, mute, locking function and username can be made via a central menu control (jog wheel). Every receiver has a colour LCD, Liquid crystal display. Relevant information is shown using this display. For example, this can be the group/channel and battery level on the transmitter; on the receiver, this can be the group/channel, level of the radio or audio signal, battery level of the transmitter, etc., depending on the system.per channel displaying all important data including frequency, group, channel, username, RF and AF level as well as the currently remaining battery capacity of the transmitter unit. RF ("radio frequency") is used as a general abbreviation for radio signals, even though this is not correct in the strict sense, since this term only applies to the frequency range of 3 to 30 MHz. Current wireless systems operate mainly in the UHF (ultra-high frequency) range between 300 MHz and 3 GHz. "Audio frequency" is a technical term for frequencies in the range of audible sound waves, i.e. frequencies from 20 to 20,000 Hz. In the context of wireless systems, you can simply refer to the audio signal. A locking function prevents the possibility of inadvertently changing the configuration during operation. The search for an interference-free frequency can be selected to be performed automatically by the scan function or manually. The balanced 3-pin XLR outputs (NE 900 S also has an unbalanced jack) and a remote connection (In/Out) that enables decentralised control of the receivers can be found on the back of the device.