Radio Coverage in Confined Areas

All mobile radio technologies need to achieve optimal coverage of their target area. With increasing frequency of the allocated bands and hard requirements of coverage, the challenge of radio coverage in confined areas like buildings, tunnels and mines is a recurrent and more and more frequent challenge.

Radiating cables (RC) are used for radio field covering of broadcast, BOS/TETRA and Wi-Fi signals in rail, street tunnels as well as in buildings.
For the injection of signals into radiating cables amplifiers with higher output power capabilities are used to compensate the coupling loss. The transmission of multiple analog and digital modulated carriers create high demands to linearity properties of the amplifiers.

Redundant power supplies and amplifier stages gives the amplifiers a fail-save design. The high efficiency avoids unnecessary self-heating und increases the life time of the amplifiers.
Becker Nachrichtentechnik offers wideband amplifiers in different power classes that are suitable for analog modulated FM broadcast signals, digital modulated DAB and DVB-T broadcast signals, for digital modulated BOS/TETRA signals and for satellite navigation signals GNSS (GPS, Galileo, GLONASS, BeiDou).
For the use as TX amplifier in radio systems the amplifiers must fulfill the relevant specifications of the standard ETSI EN 300 086 V2.1.1. The following amplifiers are specially designed for this purpose. The fulfill the limits of the standard EN 300 086 V2.1.1 of the RED (Radio Equipment Directive) directive 2014/53/EU. Additional the amplifiers are specified for low intermodulation with multicarrier signals with 8 carriers.

Model	Min. Freq.	Max. Freq.	Power	Gain	Form factor	Applications
AMP1053045	10 MHz	530 MHz	+ 45 dBm (30 W)	45.0 dB	Module	FM, DAB, BOS/TETRA
AMP3060036L	30 MHz	600 MHz	+ 36 dBm (4 W)	35.5 dB	Module	FM, DAB, BOS/TETRA
AMP3060036	30 MHz	600 MHz	+ 36 dBm (4 W)	35.5 dB	Module	FM, DAB, BOS/TETRA
AMP5220031H-R	5 MHz	2200 MHz	+ 30 dBm (1 W)	45.0 dB	19", 1 U Device	FM, DAB, DVB-T, GNSS
AMP7610849L	76 MHz	108 MHz	+ 49 dBm (80 W)	57.0 dB	Module	FM
AMP17024048L	170 MHz	240 MHz	+ 48 dBm (60 W)	55.0 dB	Module	DAB