Ingenieurbüro Mulka DABRF-RM User manual

Ingenieurbüro Mulka
The world of bit streams is our business.
Version 2018.10
DABRF-RM
DABRF-HWU
DABXP-HWU
DAB-XPlorer
User Manual –Getting Started

Ingenieurbüro Mulka
The world of bit streams is our business.
© 2018 –Ingenieurbüro Mulka
2
Revision History
Version
Date
Modifications
2016.09
06.09.2016
Initial version
2017.02
06.02.2017
Update of used EDI port for DABRF-HWU
2018.10
26.10.2018
Update for DABRF-RM
Contacts
Address
Address
Ingenieurbüro Sven Mulka
Gostritzer Straße 146
01217 Dresden
Germany
AVT Audio Video Technologies GmbH
Nordostpark 91
90411 Nürnberg
Germany
Phone
Phone
[phone]
[phone]
Fax
Fax
[phone]
[phone]
E-mail
E-mail
[email protected]
[email protected]
Website
Website
www.ib-mulka.de
www.avt-nbg.de
All information provided in this document is
subject to change without notice.
All rights reserved. Copyright © 2018
Sven Mulka, Ingenieurbüro Sven Mulka

DAB-XPlorer / DABXP / DABRF –Getting Started
3
Table of Contents
1Introduction ..............................................................................................................5
1.1 Conventions ...............................................................................................................5
1.2 Read the documentation ............................................................................................5
1.3 Safety.........................................................................................................................6
1.4 General safety requirements ......................................................................................6
1.5 Electrical Safety.......................................................................................................... 7
1.6 EMC Protection..........................................................................................................8
1.7 Proper Disposal..........................................................................................................8
2What is the DAB-XPlorer and DABXP-HWU? .........................................................9
3What is the DABRF?............................................................................................... 11
4How to Read the Manuals...................................................................................... 12
4.1 Organisation of the manuals..................................................................................... 12
4.1.1 First reading .........................................................................................................12
4.1.2 Further manuals...................................................................................................12
4.2 References...............................................................................................................13
4.3 Abbreviations used in the manuals...........................................................................14
5Products.................................................................................................................. 15
5.1 Hardware.................................................................................................................. 15
5.1.1 DABXP-HWU .......................................................................................................15
5.1.2 DABRF-HWU ....................................................................................................... 18
5.1.3 DABRF-RM..........................................................................................................21
5.1.4 CodeMeter –CM-Stick.........................................................................................23
5.2 Software...................................................................................................................24
5.2.1 DABXP-BASIC –Main Application .......................................................................24
5.2.2 DABXP-BASIC –Multiplex Analyser..................................................................... 26
5.2.3 Option DABXP-OXT –FIC-XTractor..................................................................... 32
5.2.4 Option DABXP-OPL –DAB-Plus-Decoder, FEC and Streaming........................... 33
5.2.5 Option DABXP-OCO –RDI-ETI-Converter........................................................... 34
5.2.6 Option DABXP-OPR –PRBS-Analyser ................................................................36
5.2.7 Option DABXP-OCC –GPS-Campaign-Converter............................................... 37
5.2.8 Option DABXP-OTR –Triggered Recorder ..........................................................39
5.3 Examples of use cases and configurations............................................................... 40
5.3.1 ETI analysis for broadcasters...............................................................................40
5.3.2 Transmitter setup ................................................................................................. 40
5.3.3 Coverage measuring............................................................................................41
5.3.4 SFN test...............................................................................................................41
5.3.5 Receiver test ........................................................................................................41
5.3.6 Test of transmitter components ............................................................................42
6Software Installation .............................................................................................. 43
6.1 System Requirements.............................................................................................. 43
6.2 Installation Process .................................................................................................. 44
6.3 Licence Activation ....................................................................................................51
6.4 DABRF first connection ............................................................................................53
6.5 Familiarisation..........................................................................................................56
6.5.1 Overview..............................................................................................................56
6.5.2 Tips and tricks......................................................................................................57
6.6 Troubleshooting........................................................................................................58
6.6.1 Error during start-up .............................................................................................58
6.6.2 No audio output.................................................................................................... 58
6.6.3 The decoder does not work in Playback mode .....................................................58

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© 2018 –Ingenieurbüro Mulka
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6.6.4 I have found a bug!...............................................................................................58
Appendix A Product Characteristics..........................................................................59
A.1 DABXP-HWU ...........................................................................................................59
A.2 DABRF-HWU ...........................................................................................................60
A.3 DABRF-RM ..............................................................................................................61
Appendix B Ordering Information..............................................................................63
B.1 Hardware components (require additional software options) ....................................63
B.2 DABRF specific software options..............................................................................64
B.3 Software options (require one of the hardware components)....................................65
Appendix C Software License Agreement.................................................................67
CE Conformity....................................................................................................................71
CE Conformity....................................................................................................................73

DAB-XPlorer / DABXP / DABRF –Getting Started
5
1 Introduction
The DABXP-HWU is an ETI/RDI to USB converter. DABRF-HWU and DABRF-RM are DSP-
based professional DAB receivers with integrated DAB modulators. All three in according
with standard ETSI EN 300401 V2.1.1.
The configuration of the devices can be carried out via the DAB-XPlorer PC Software and
partially via web browser.
The DABXP-HWU is available in a 30 x 110 x 106 mm3housing with USB powering. DABRF
is available in a 30 x 110 x 176 mm3housing with an external 12V power supply. DABRF-RM
is a 19” system with an integrated power supply.
1.1 Conventions
In this manual the following conventions are used as text markers:
Electrical Safety
Indicates danger of electric shock. For reasons of security, these instructions must
be followed by all means.
Attention
Indicates very important advice that is absolutely to observe. In case of non-
observance malfunctions and even system errors are possible.
Important Note
Indicates instructions which make sense or are very useful for the usage of the
device or the software.
1.2 Read the documentation
Before connecting the DAB-XPlorer, DABRF, DABRF-RM or the CM-Stick with
your PC and before installing the software, please read section 6. This section
contains a step-by-step installation procedure.
Please visit us at http://www.ib-mulka.de for information about current extensions and new
developments.
We hope that you will be satisfied with your DABXP-HWU, DABRF-HWU or DABRF-RM. If
you have any questions, please feel free to contact us; we will be pleased to receive your
comments or requests at any time.

Ingenieurbüro Mulka
The world of bit streams is our business.
© 2018 –Ingenieurbüro Mulka
6
1.3 Safety
The unit described has been designed to the latest technical parameters and complies with
all current national and international safety requirements. It operates on a high level of
reliability because of long-term experience in development and constant and strict quality
control in our company.
This manual contains basic safety instructions that must be observed during configuration
and operation. It is essential that the user reads this manual before the system is used and
that a current version of the manual is always kept close to the equipment.
1.4 General safety requirements
To keep the technically unavoidable residual risk to a minimum, it is absolutely
necessary to observe the following rules:
•Transport, storage and operation of the unit must be under the permissible
conditions only.
•Installation, configuration and disassembly must be carried out only by trained
personal on the basis of the respective manual.
•The unit must be operated by competent and authorised users only.
•The unit must be operated in good working order only.
•The device must be protected from water.
•The device may only be installed in indoor rooms.
•The device may only be cleaned with a dry cloth.
•Any conversions or alterations to the unit or to parts of the unit (including
software) must be carried out by trained personnel authorised by the
manufacturer. Any conversions or alterations carried out by other persons lead
to a complete exemption of liability.
•Only specially qualified personnel are authorised to remove and override
safety measures, and to carry out the maintenance of the system.
•External software is used at one’s own risk. Use of external software can affect
the operation of the system.
•Use only tested and virus-free data carriers.
Although the DABRF-HWU and DABRF-RM has an integrated fan for proper
cooling, it is recommended to have sufficient ventilation.
The ambient temperature of the system should be within the range of +5°C and
+40°C. This threshold is specially to observe if the system is inserted in a rack.
During operation humidity must range between 30% and 85%.
Incorrect ambient temperature and humidity can cause functional deficiencies.
Improper use of the unit can lead to a loss of warranty claim.

DAB-XPlorer / DABXP / DABRF –Getting Started
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1.5 Electrical Safety
If the information on electrical safety is not observed either at all or to the extent necessary,
electric shock, fire and/or serious personal injury or death may occur.
Unless expressly permitted, never remove the cover or any part of the housing
while the product is in operation. Doing so will expose circuits and components and
can lead to injuries, fire or damage to the product.
If there is no power switch for disconnecting the product from the mains, or if the
power switch is not suitable for this purpose, use the plug of the connecting cable
to disconnect the product from the mains. In such cases, always ensure that the
power plug is easily reachable and accessible at all times. For example, if the
power plug is the disconnecting device, the length of the connecting cable must not
exceed 3 m. Functional or electronic switches are not suitable for providing
disconnection from the AC supply network. If products without power switches are
integrated into racks or systems, the disconnecting device must be provided at the
system level.
When mounting the unit please keep in mind that the bending radius of the
connected cables is always greater than the minimum allowed value. It must also
be ensured that the power supply unit of the DABRF-HWU or the power cable of
the DABRF-RM are installed close to the equipment and are easily accessible.
DABRF-RM must be earthed. The earthing can be carried out via the earthing
screw on the back side of the unit.
DABRF-RM may only be used with the included power cable. The power cable
must not be replaced by an inadequately dimensioned power cable.
DABRF-HWU may only be operated with one of the included power supplies listed
below:
•Sunny Model SYS1541-2412
100-240 Vac; max. 1,0 A; 50-60 Hz / 12 Vdc; 2,0 A (EN60950 –LPS)
•Sunny Model SYS1357-2412
100-240 Vac; max. 1,0 A; 50-60 Hz / 12 Vdc; 2,0 A (EN60950 –LPS)
The earth of all connectors has a direct connection to the housing and the earth of
the Ethernet or USB connector. All shields of connected lines must be connected to
protective earth.
Basically, the measurement on the live circuit parts with voltages higher than 30V
with the DABXP-HWU, DABRF-HWU or DABRF-RM is not allowed.

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© 2018 –Ingenieurbüro Mulka
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1.6 EMC Protection
In order to avoid possible electromagnetic disturbances, it is necessary to use
shielded lines for the connection of the interfaces. The shield must be connected to
protective earth. Additionally, please make sure that metalized connector housings
are used, which must be connected to the shield of the line.
Besides, the device may only be operated if it is closed. In the case of calibration
processes at the opened device, the respective protection measures must be
taken.
1.7 Proper Disposal
All electrical and electronic equipment must be disposed separately from general
household waste via authorised collection points or disposal companies. Proper
disposal and separate collection of old appliances serves to prevent potential
damage to the environment and health. The device contains valuable raw
materials that can be reused. Therefore, return the appliance to an appropriate
collection point.
Detailed information on the disposal of your old appliances can be obtained from your local
authority, your waste disposal service, the specialist dealer where you purchased the product
or your sales contact.
These statements apply only to equipment installed and sold in the countries of the
European Union. Countries outside the European Union may have different regulations for
the disposal of electrical and electronic equipment.
Always recycle packaging material and electrical appliances or their components
through authorised collection points or disposal companies.
The DABXP-HWU, DABRF-HWU and DABRF-RM devices are sold for B2B only.
The acquired equipment must be supplied to a proper waste disposal after the end
of their lifetime according WEEE directive 2012/19/EC. Thereby is excluded that
the devices to be sold or given away to user in private households.

DAB-XPlorer / DABXP / DABRF –Getting Started
9
2 What is the DAB-XPlorer and DABXP-HWU?
For historical reasons the term DAB-XPlorer stands for two things:
•DAB-XPlorer software suite providing a collection of software tools to analyse DAB data
streams and
•DAB-XPlorer hardware providing an ETI/RDI-to-USB interface. The device will be called
also DABXP-HWU in this document.
Originally, both the software and the hardware have been one product, the DAB-XPlorer,
developed and manufactured by Ingenieurbüro Mulka. In the course of the evolution of this
product, the software was modified and extended to support additional hardware products
from other vendors. At this time the DAB-XPlorer software suite supports and can be
delivered with
•ETI/RDI-to-USB converter DABXP-HWU, and
•DAB test receiver and modulator DABRF-HWU or DABRF-RM,
all three from Ingenieurbüro Mulka.
In addition, the DAB-XPlorer software suite supports
•all Ethernet interfaces that can be used to receive EDI data streams,
•DAB test receiver UEB400DXP provided under the trademark VAD, and
•products of VDL’s DABSTOR family.
The DAB-XPlorer software application is modular. The following tools are available
•Ensemble Viewer
•ETI-XPlorer
•FIC-XPlorer
•FIC-XTractor
•PRBS-Analyzer
•Message Viewer
•Recorder / Player / Timeshift Buffer
•RDI-ETI-Converter
•GPS-Campaign-Converter
•Triggered Recorder
Figure 1 gives a summary about all components of the system.
Together with the various hardware options, the software modules can be combined to
support a great variety of use cases. Section 5.3 describes some examples.

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Legend
DAB-XPlorer
RDI
ETI
ETI
RF
RF-IN
USB
USB
Ethernet
UEB400-DXP
DABRF
ETI-XPlorer
ETI / RDI
EFCO
EDI / IQ
Timeshift
Buffer Decoder
FIC-XPlorer
FIC-XTractor
PRBS-Analyzer
RDI-ETI-
Converter
GPS Campaign
Converter
Ensemble
Viewer
Message
Viewer
Recorder
Player
Named
Pipe
ETI
RDI
EFCO
EDI Musicam
Decoder
DAB+
Decoder
DMB
Decoder
Analyzer(s)
Analyzer(s)
Analyser(s)
Triggered Recorder
EDI
ETI / EDI /
RDI / EFCO ETI / EDI
EFCO / EDI KML
Hardware Software
Module Software Core
ETI / RDI /
EFCO / EDI
RF-OUT
Figure 1 –Summary of components of the DAB-XPlorer application

DAB-XPlorer / DABXP / DABRF –Getting Started
11
3 What is the DABRF?
The DABRF module was developed as core component of the tunnel break-in system,
MAGIC TBR from AVT, that, in the event of a disaster, allows to supply a street tunnel with
live warning messages via digital radio. Those systems require the DAB signal containing the
warning message transmitted within the tunnel to mimic the ensemble outside the tunnel, as
well with regard to its multiplex structure as to its timing. If not doing so, when the emergency
warning begins, the DAB receivers inside the tunnel would lose the signal, and would be
required to perform a time-consuming re-synchronisation.
The DABRF combines all essential functions for this highly complex task within one module:
•reception of the DAB signal,
•recovery of a time reference based on received signal or alternative with an integrated
GPS receiver,
•analysis of the multiplex of the received signal,
•replacing the audio date in the multiplex by those delivered from an external audio
encoder,
•COFDM modulation of the so regenerated ensemble to up to four frequency blocks
within a bandwidth of 37 MHz
All digital signal processing functions are implemented in one powerful DSP and one FPGA.
A gigabit Ethernet interface and 512 MByte internal memory enable a wide-band connection
between the DABRF and a PC or other external system components. The so created device
is versatile and suitable for other applications as well.
Since 2016, the DABRF replaces the established DAB test receiver, UEB400DXP, within the
DAB-XPlorer family of DAB analysing tools. In this application, the DABRF offers a great
potential for future extensions of the collection of powerful analysis tools of the DAB-XPlorer
suite. It will support the already known functions:
•recovery of ETI data streams from a received on-air signal,
•multiplex analysis,
•coverage measuring with bit error rates and RF level,
•SFN analysis.
Additionally, it will enable the following new functions to be realized by future software
extensions:
•RF recording in the form of I/Q samples at a bandwidth of 1.6 MHz,
•replay of the recorded RF signal with a high dynamic range,
•simultaneous COFDM modulation of up to four different EDI data streams to four DAB
blocks laying within a 37 MHz wide RF band,
•advanced RF analysis of the received signal, i.e. MER, spectrum, constellation diagram,
channel impulse response etc.
The DABRF is available as a small module DABRF-HWU with external 12V power supply
and as a rack mounted 19” version DABRF-RM with an integrated power supply.

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4 How to Read the Manuals
4.1 Organisation of the manuals
4.1.1 First reading
This manual describes the DAB-XPlorer software suite in general. It will give you an overview
of all software modules, of the accompanying hardware and of the installation procedure.
Further manuals describe the main DAB-XPlorer application and the optional modules. All
these manuals refer to this “Getting Started” manual.
4.1.2 Further manuals
Main Application: Manual describing the main DAB-XPlorer software
application with its panels for hardware control and
configuration.
Analyser: Description of the Analyser option with ETI-XPlorer and FIC-
XPlorer.
FIC-XTractor: Description of option FIC-XTractor for detailed analysis of
the Fast Information Channel.
PRBS-Analyser: Description of option PRBS-Analyser that serves for detailed
examination of bit errors within the data stream.
RDI-ETI-Converter: Description of a software option to convert and manipulate
various file types containing DAB data streams.
GPS Campaign Converter: Description of an option that allows using the system for
coverage measuring and for the presentation of the results of
measuring journeys.
Triggered Recorder: Manual describing the Triggered Recorder application that
allows using a data stream recording by triggers gained by
the analysis of the incoming data stream.

DAB-XPlorer / DABXP / DABRF –Getting Started
13
4.2 References
It is not possible to understand the DAB-XPlorer and the related manuals without profound
knowledge of the DAB technology. Please refer to the related technical standards whenever
you find terms, abbreviations or parameters that are not explained in the manuals. The
standards of EUREKA 174 DAB family as mentioned in the following list are published by
ETSI. Please download them from www.etsi.org.
ETSI EN 300 401 Radio Broadcasting Systems; Digital Audio Broadcasting (DAB) to
mobile, portable and fixed receivers
ETSI TR 101 495 Digital Audio Broadcasting (DAB); Guide to DAB standards
ETSI TS 101 756 Digital Audio Broadcasting (DAB); Registered Tables
ETSI EN 302 077 Transmitting equipment for the Digital Audio Broadcasting (DAB)
service; Harmonised Standard for access to radio spectrum
ETSI EN 303 345 Broadcast Sound Receivers; Harmonised Standard covering the
essential requirements of article 3.2 of Directive 2014/53/EU
ETSI TS 103 461 Digital Audio Broadcasting (DAB); Domestic and in-vehicle digital
radio receivers; Minimum requirements and Test specifications for
technologies and products
ETSI EN 300 797 Digital Audio Broadcasting (DAB); Distribution interfaces; Service
Transport Interface (STI)
EN 50248:2002 Characteristics of DAB receivers
EN 50255 DAB receiver interface for the output of the decoded DAB
ensemble or individual sub-channels (RDI)
ETS 300 799 Digital Audio Broadcasting (DAB); Distribution interfaces;
Ensemble Transport Interface (ETI)
ETSI TS 101 757 Digital Audio Broadcasting (DAB); Conformance Testing for DAB
Audio
ETSI TS 102 427 Digital Audio Broadcasting (DAB); Data Broadcasting –MPEG-2
TS streaming
ETSI TS 102 428 Digital Audio Broadcasting (DAB); DMB video service; User
application specification
ETSI TS 102 563 Digital Audio Broadcasting (DAB); Transport of Advanced Audio
Coding (AAC) audio
ETSI TS 102 693 Digital Audio Broadcasting (DAB); Encapsulation of DAB
Interfaces (EDI)
ETSI TS 102 821 Digital Radio Mondiale (DRM); Distribution and Communications
Protocol (DCP)

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4.3 Abbreviations used in the manuals
DAB Digital Audio Broadcasting, ETSI EN 300 401, international standard for audio and
video broadcasting to mobile, portable, and stationary receivers
EDI Encapsulation for DAB Distribution Interfaces as defined in TS 102 693
EFCO Enhanced Full Capacity Output; a proprietary data stream and file format of the DAB
receiver UEB400DXP containing the content of the complete DAB multiplex after
channel decoding, additional quality information from the DAB receiver and
geographic data from the GPS receiver.
ETI Ensemble Transport Interface, ETS 300 799, transmission protocol between DAB
ensemble multiplexer and DAB transmitter
FIB Fast Information Block, part of the FIC, comprises a maximum of 30 bytes payload
(FIGs) and 2 bytes check sum (CRC)
FIC Fast Information Channel, control channel of the DAB ensemble, includes the
multiplex configuration and service information
FIG Fast Information Group, smallest information unit within the FIC
PRBS Pseudo-random binary sequence, artificially created random binary sequence
RDI Radio Data Interface, EN 50255, DAB receiver interface for the output of the
decoded DAB ensemble or individual sub-channels
STI Service Transport Interface, EN 300 797, transmission protocol between DAB
service multiplexer and DAB ensemble multiplexer

DAB-XPlorer / DABXP / DABRF –Getting Started
15
5 Products
The following sections contain a short description of all software modules of the DAB-XPlorer
application and of the hardware components that can be used with the DAB-XPlorer suite.
Please refer to 0 for a concise summary of all available products with their appropriate
ordering information.
5.1 Hardware
5.1.1 DABXP-HWU
Figure 2 –DABXP-HWU
The DABXP-HWU, also called DAB-XPlorer device, converts an incoming data stream from
G.703 or SPDIF to USB for recording and further processing on an attached PC. In the
opposite direction ETI streams can be put out via a G.703 interface. It serves for the analysis
of data streams in DAB networks, supporting the Ensemble Transport Interface (ETI)
according to ETS 300 799 and the Receiver Data Interface (RDI) according to EN 50255.

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DAB COFDM
STI
STI ETI
ETI
RDI
DAB RX
DAB-XPlorer
Figure 3 –Application area of the DABXP-HWU
The device allows the continuous supervision of Transport Streams in real time and indicates
every transmission or protocol failure. In parallel to the analyses a recording or replaying of
the complete data stream is possible.
The place of application of the DABXP-HWU is typically at the interface between Ensemble
Multiplexer and COFDM Modulator or at the Receiver Data Interface (RDI) of a suitable DAB
receiver.
Due to its small size and low weight the DABXP-HWU is especially well suited for the
portable use. The robust device was made to withstand the rugged application conditions of
service technicians workaday.
Front View
Figure 4 –Front view of the DABXP-HWU
Component
Description
USB
USB client interface
USB-B port
Connects the DAB-XPlorer to the PC.
DTE
RS232C without hardware handshake
SUB-D plug-in connector, 9-pole
debug interface

DAB-XPlorer / DABXP / DABRF –Getting Started
17
Power
LED green
Indicates availability of power supply through the PC.
TX
LED yellow
Indicates data transmission (PC →DAB-XPlorer).
RX
LED yellow
Indicates reception of data (DAB-XPlorer →PC).
Info
LED red
Indicates errors or alarms at the DAB-XPlorer.
Back View
Figure 5 –Back view of the DABXP-HWU
Component
Description
G.703-TX
G.703 output, HDB3 encoded
BNC plug-in connector, 75 Ω
G.703-RX
G.703 input, HDB3 encoded
BNC plug-in connector, 75 Ω
1PPS-IN
Input for time reference
BNC plug-in connector, 75 Ω, TTL level
RDI-IN
S/PDIF input, corresponding to RDI standard
optical, TOSLINK

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5.1.2 DABRF-HWU
Figure 6 –DABRF-HWU receiver and modulator
The DABRF-HWU 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-HWU is able to modulate DAB signals based on up to four EDI or IQ
streams.

DAB-XPlorer / DABXP / DABRF –Getting Started
19
Front View
Figure 7 –Front view of the DABRF-HWU
Component
Description
DC 12V
Power connector
Requires a 12V DC voltage.
RST
Reset Button
To run the DABRF in BOOTP mode press the button for around 8
seconds until the Ethernet LED’s are flashing.
B1
Auxiliary Button #1
The usage of that button depends on the running application.
B2
Auxiliary Button #2
The usage of that button depends on the running application.
LED GPS
LED red / green
A flashing red colour indicates the proper operation of application. A
flashing green colour indicates the 1PPS pulse.
LED INF
LED orange
The usage depends on the running application.
LED RX
LED yellow
The usage depends on the running application.
LED TX
LED yellow
The usage depends on the running application.
LAN
Gigabit Ethernet connector
Need an Ethernet connection with a running DHCP server to provide a
valid IP address to DABRF. As fallback it will be used a link-local
address from the address block 169.254.0.0/16.

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Back View
Figure 8 –Back view of the DABRF-HWU
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.