DAB-XPlorer / DABXP / DABRF
– Getting Started
21
5.1.3 DABRF-RM
Figure 9
– DABRF-RM receiver and modulator as 19” variant
The DABRF-
RM is a 19” variant of DABRF with integrated power supply. The functionality is
similar with the DABRF-HWU.
The DABRF-RM allows the user to receive DAB signals according to ETSI EN 300 401 and
to perform a detailed analysis of the data streams contained therein.
Data streams recovered from the DAB signal can be captured as EDI files and converted to
ETI data streams (with the software option RDI to ETI Converter). Such test patterns can be
employed for the verification of DAB receivers and the final inspection of transmitters.
Using the measured data of the integrated GPS receiver, it is possible to calculate the time
jitter of a DAB signal. In doing so, the synchronism of a single frequency network (SFN) can
be validated.
In addition, the DABRF-RM is able to modulate DAB signals based on up to four EDI or IQ
streams.
Front View
Figure 10
– Front view of the DABRF-RM
Component
Description
RF-IN
SMA connector, 50 Ω
Serves as RF input for signals in VHF band III as well as for signals in
the L-band.
GPS-IN
SMA connector, 50 Ω
Serves as RF input of the integrated GPS receiver.
RF-OUT
SMA connector, 50 Ω
Serves as RF output of the integrated DAB modulator.
POWER
Power LED
Indicates that the device is powered on.
