Users Manual

Product Description
The DH7S Signal Booster Series are dual band channel selective Public Safety 700 and Public
Safety 800 Dual Band Digital Signal Booster that operates in the PS700 and PS800 bands.
Each band has separate filtering modules, so no interference can be produced between the two
systems.
Each band has a separate To Base RF Port, so each band can have its own directional antenna. In
the case the PS700 and PS800 donor Base Stations are located in the same donor site, a
conventional splitter/combiner can be used to feed both systems with one same donor antenna.
The connectors and LED panel in the cabinet are labelled as Band I and Band II, in this case, Band
I is PS700 and Band II is PS800.
BAND I  PS700
BAND II  PS800
Each band has a separate intermediate filtering. The intermediate filtering is done using FPGA
based Digital Signal Processing that, among many, has the following features:
 High Selectivity vs Low Delay
 AGC per channel and per time slot
 Squelch per channel and per time slot
 Integrated Spectrum Analyzer
This Signal Booster is capable of handling 30 filters in uplink PS700, 30 filters in downlink PS700,
32 filters in uplink PS800 and 32 filters in downlink PS800, making a total count of 124 filters. The
center frequency and BW of each one of the filters can be tuned via a software interface.
This Digital Signal Booster is intended to be used in P25Ph1, P25Ph2, TETRA, DMR, Mototrbo and
Conventional radio systems.
This Digital Signal Booster has a heavy duty IP67/NEMA4X cabinet for outdoor usage, it is
designed to be wall or pole mounted.
For more details refer to the product datasheet.