DEVA Broadcast Radio Explorer II User manual

MAINTENANCE AND OPERATION
INSTRUCTION MANUAL
Publish Date: 04-Jan-2018
Radio Explorer II
Mobile FM Radio Analyzer
50 Channel GPS Receiver

Contents
Introduction........................................................................................................................................ 6
Typographic conventions .................................................................................................................. 7
General Information.......................................................................................................................... 8
Product Features ................................................................................................................................ 9
Technical Specications ................................................................................................................ 10
Block Diagram .............................................................................................................................. 12
Front Panel.................................................................................................................................... 13
Rear Panel..................................................................................................................................... 14
Rear Panel GPO Terminal ............................................................................................................ 15
Before you start ................................................................................................................................ 16
Unpacking and Inspection............................................................................................................. 16
Radio Frequency Interference (RFI) ............................................................................................. 16
Safety Precautions......................................................................................................................... 17
Device connection ......................................................................................................................... 17
Operating Modes ............................................................................................................................. 18
Logger Mode ................................................................................................................................. 18
PI/CALL Campaign Mode............................................................................................................. 18
Interactive Mode ........................................................................................................................... 18
Navigation through OLED Menu................................................................................................... 19
Navigational Buttons..................................................................................................................... 19
Soft Buttons ................................................................................................................................... 19
OLED Display............................................................................................................................... 20
Header area.............................................................................................................................. 21
Main Screen working area........................................................................................................ 21
Operating Modes and Pages ........................................................................................................... 22
Home Page .................................................................................................................................... 22
Bandscan Page.............................................................................................................................. 23
Span control state ..................................................................................................................... 25
Marker control state ................................................................................................................. 27
Parameter control state ............................................................................................................ 28
Bandscan page parameters ..................................................................................................... 28
FFT Page....................................................................................................................................... 29
Parameter Control States:........................................................................................................ 30
Scope Page .................................................................................................................................... 31
Parameters available: .............................................................................................................. 31
Stereo Page.................................................................................................................................... 32
Graphs Page.................................................................................................................................. 33
Levels Page ................................................................................................................................... 35
Status Page.................................................................................................................................... 39
Status > Device ........................................................................................................................ 39
Status > IP Address .................................................................................................................. 39
Status > GPS ............................................................................................................................ 40
Settings Page................................................................................................................................. 40
Settings Menu screen structure ................................................................................................ 41
How to start a PI or Logger campaign using the front panel menu? ........................................... 45

Restore factory defaults................................................................................................................... 46
WEB Interface.................................................................................................................................. 47
Manual IP Address Identication.................................................................................................. 47
Network discovery ........................................................................................................................ 49
Access............................................................................................................................................ 49
Main page ..................................................................................................................................... 50
RDS/RBDS Page ........................................................................................................................... 51
MPX Page .................................................................................................................................... 52
Bandscan Page.............................................................................................................................. 53
Status Page.................................................................................................................................... 54
Log Page ....................................................................................................................................... 55
General Settings Page................................................................................................................... 56
Tuner Settings Page....................................................................................................................... 57
Communication Settings Page ...................................................................................................... 58
Outputs Settings Page ................................................................................................................... 59
Other Settings Page....................................................................................................................... 60
Firmware Update ..................................................................................................................... 60
Factory Defaults....................................................................................................................... 60
Reboot....................................................................................................................................... 60
Storage and System Log ........................................................................................................... 60
PI Campaign and Logger Mode.................................................................................................... 61
Differences between PI campaign and Logger Mode. ............................................................ 61
Which type of campaign should I choose? ............................................................................... 61
RDS PI / RBDS CALL campaign - PI campaign...................................................................... 61
Logger mode............................................................................................................................. 61
WEB Interface control options explained................................................................................. 62
Important recommendations when acquisition time is set........................................................ 64
How to start a PI Campaign?................................................................................................... 65
How to start a Logger campaign?............................................................................................ 66
Google Earth Visualization ............................................................................................................. 67
List of Radio Explorer II Settings .................................................................................................. 69
Troubleshooting................................................................................................................................ 75
Product Registration Card.............................................................................................................. 76
WARRANTY TERMS AND CONDITIONS................................................................................. 77

APPENDIX A ................................................................................................................................... 78
RDS: Europe vs America .............................................................................................................. 78
The RDS System ........................................................................................................................... 78
APPENDIX B ................................................................................................................................... 79
Download les via FTP................................................................................................................. 79
FTP Server Settings.................................................................................................................. 79
IP Router and Port Translation Settings .................................................................................. 79
Example of FTP Client (FileZilla) Settings.............................................................................. 80
APPENDIX B.1 ................................................................................................................................ 81
RDS Applications Supported ........................................................................................................ 81
AF ............................................................................................................................................ 81
CT ............................................................................................................................................ 81
DI ............................................................................................................................................. 81
ECC .......................................................................................................................................... 81
EON .......................................................................................................................................... 82
EWS .......................................................................................................................................... 82
IH ............................................................................................................................................. 82
M/S ........................................................................................................................................... 82
ODA.......................................................................................................................................... 82
PI ............................................................................................................................................. 82
PIN............................................................................................................................................ 82
PS ............................................................................................................................................. 83
PTY .......................................................................................................................................... 83
PTYN ........................................................................................................................................ 83
RT ............................................................................................................................................ 83
RT+........................................................................................................................................... 84
TA ............................................................................................................................................. 84
TDC .......................................................................................................................................... 84
TMC.......................................................................................................................................... 84
TP ............................................................................................................................................. 84
APPENDIX C.1................................................................................................................................ 85
PTY Code Description Used in RBDS Mode – North America..................................................... 85
APPENDIX C.2................................................................................................................................ 86
PTY Code Description Used in RDS Mode – Europe, Asia .......................................................... 86

THIS PAGE
IS INTENTIONALLY
LEFT BLANK

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- 6 -
Introduction
DEVA Broadcast Ltd. is an international communications and high-technology manufacturing
organization, its corporate headquarters and facility located in Burgas, Bulgaria. The company
serves the broadcast and corporate markets worldwide – from consumers and small businesses to
the largest global organizations. It is dedicated to the research, design, development and provision
of advanced products, systems and services. DEVA launched its own brand back in 1997 and has
nowadays evolved to become known as a market leader and internationally reputed manufacturer
of user-friendly, cost-effective and innovative broadcast products.
Creativity and innovation are deeply woven into DEVA corporate culture. Through successful
engineering, marketing and management our team of dedicated professionals creates future-
oriented solutions to improve customers’ performance. You may rely that all issues communicated
to our crew would be addressed accordingly. We pride ourselves on our pre and post-sales support
and purchase services, which along with the outstanding quality of our radio gear have won us due
respect and the market authority position.
DEVA best-of-breed solutions have become the best sellers for our partners. The strategic
partnerships which have been formed with industry leaders during all these years that we have been
operating on the broadcasting market, have proved us a reliable business partner and a valuable
asset, as our dealers worldwide would conrm. In constant pursuit of precision and long-term
satisfaction, DEVA enhances the reputation of our partners and clients alike. Furthermore, we have
already a proven merit as a credible partner provider.
Our portfolio offers complete line of high quality and competitive products for FM and Digital
Radio, Radio Networks, Telecommunication Operators and regulation authorities. For almost
two decades of intensive software and hardware development, we have achieved a unique price-
performance and endurance of our product lines. Our company’s multitude of equipment and
services is in line with the latest technologies and key trends. The most recognizable characteristics
attributed to DEVA products are their clear-cut, streamlined design, easiness of use and cost-
effectiveness: simplicity of forms but multiplicity of functions.
For us there is no stage when we deem that we have reached the most satisfactory level in our
work. Our engineers are in constant pursuit of new ideas and technologies to be captured in DEVA
solutions. Simultaneously, a strict control is being exercised at each step of any new development.
Experience and hard work are our fundament but the continuous improving process is what we
never leave aside. DEVA participates on a regular basis in all landmark broadcasting events, not
only to promote its products, but to exchange valuable know-how and experience. We are also
engaged in international large-scale projects involving radio and audio solutions which makes us
even more competitive on the global market.
All DEVA products are developed and produced in accordance with the latest ISO 9001 quality
control standards.

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- 7 -
Typographic conventions
This manual uses the following typographic conventions:
Style Used for
NOTE Important notes and recommendations
Example Used when example text is cited
“Menu” on page XX. References
[OK] Interface Interactive buttons.
Settings Menu paths are represented as follows: Settings> General> Backup

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- 8 -
General Information
Dual DSP-based, compact and affordable Radio Explorer II is a product with highly evaluated
performance. This device is the perfect solution for led surveys and on site monitoring of
station’s complete signal. A click on the button converts the Radio Explorer II into an excellent
tool for analyzing of the signal strength and quality after repairs or set-up of new equipment. This
cost-effective device can measure RF level, MPX deviation, Left & Right Audio levels, RF eld
strength, RDS and Pilot injection levels and display the measurements on the easy to read OLED
Graphical display.
The Radio Explorer II is a multifunctional device designed in line with all market requirements.
This mobile easy to use tool evaluates the FM broadcast band congestion and stores all important
radio broadcast parameters in a Log le. The built-in FTP system allows managing of the les by
an assigned schedule. All collected information is centralized in a database and can be revised,
played back, and sent automatically to the qualied staff if need be.
Designed for signal surveillance, on the eld where the listeners are, all that is needed is a
vehicle and Radio Explorer II. There are two distinct campaign modes:
Radio Explorer II can be set to measure automatically one or multiple preselected frequencies
(Up to 50);
RDS PI / RBDS Call campaign – up to 10 stations can be chosen. Radio Explorer II will
automatically detect the used frequency. While the campaign is running, the chosen stations will
be monitored; Radio Explorer II will automatically switch over between the variable frequencies
during movement - just as the car radio of your listeners.
When the campaign is over using the supplied free of charge Windows software, the log
les could be converted into KMZ format and visualized in Google Earth. Such functionality
is irreplaceable when current information of the FM broadcast band congestion and coverage is
needed. As an addition, the Log le can be also exported and saved as a transitional format for
future analysis.
The band scan mode guarantees real-time live visualization of the FM band or a particular
predened part of it, with down to 10 kHz resolution. Radio Explorer II can be controlled through:
The built-in Web server - a standard web browser can be used to monitor its status or make
some adjustments. Apple and Android devices are also supported. The Main Screen of the WEB
Interface shows all mandatory parameters represented as LED readings;
The supplied free of charge DEVA Device Manager Software - easy-to-use interface allows
quick and easy connection to the device. The dedicated module ensures managing of all the
device’s logs and displays all the events in a handy manner;
The very intuitive user interface with OLED screen, Front panel navigational and soft buttons
ensures an easy usage of the device’s build-in features.
Supporting both RDS/RBDS standards and measurement units, the Radio Explorer II is a
suitable choice for broadcast engineers from all around the world. For better control and data
representation the device can be connected to any Windows® based PC, via the LAN or USB port.
Offering various bar-graphs, data plots, histograms, etc., this device will meet the expectations of
the most demanding broadcasters.

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- 9 -
Product Features
• Powerful Dual DSP-based core
• Front panel OLED Graphical Display
• Very Intuitive Application Interface
• SNMP for adjustments and control
• Full control and monitoring via LAN &USB connection
• Easy to use WEB Interface
• Maintenance via DEVA Device Manager Software
• User selectable, 87.1-108 MHz (CCIR), 65-74 MHz (OIRT), 76-95 MHz (Japan)
• Dual antenna ports supporting up to 100 dBµV direct RF Antenna Input.
• Selectable IF bandwidth
• MPX, PILOT, RDS deviation meters and RF Field strength
• Built-in Stereo decoder; Stereo Presence Detection
• 3 General purpose outputs – GPS Fix, Multipath, Low RF Level
• LEFT and RIGHT demodulated audio level meters
• Built-in 50-channels GPS Receiver
• Measurement results visualisation in Google Earth
• Accurate front-panel metering for local use
• Professional 6 mm Headphones audio output with volume control
• RDS and RBDS decoder
• FM/RDS/RBDS Data Logger
• Built-in FTP Server for easy download of the Log les
• RDS/RBDS Stream BER meter
• Robust, custom made Metal Case for high RF immunity
• RF and RDS Measurements (real time & average)

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- 10 -
TECHNICAL SPECIFICATIONS
RF INPUT
Tuning Range User selectable, 87.1-108 MHz (CCIR), 65-74 MHz (OIRT),
76-95 MHz (Japan)
Tuning Step 10, 20, 50, 100 kHz
Tuner Sensitivity 30 dBµV
Antenna Ports Dual, 2 x BNC Connectors, 50Ω
Antenna Ports Isolation > 40 dB
Internal Attenuator 0, 10, 20 and 30 dB
Dynamic range 100 dB
FM DEMOD
IF Filter Bandwidth 15 Increments (27kHz - 157kHz, Auto)
Frequency Response ±0.1 dB, 10 Hz to 86 kHz
MPX Power ±12 dBr, 20 sec. integration
Dynamic range 90 dB
STEREO DECODER
Frequency Response (L and R) ±0.1 dB, 10 Hz to 15 kHz
SNR (Stereo) 60 dB, 50 µs de-emphasis
THD 0.15% @ 1kHz, 0.4% from 10 Hz to 15 kHz, 50 µs de-emphasis
Separation 50 dB, 50 Hz to 10 kHz, 50 µs de-emphasis
Crosstalk 52 dB
RDS DECODER
Standards European RDS CENELEC; United States RBDS NRSC
Error Correction & Counting Yes
AF Decoding Yes
CT (Time/Date) Yes
PI, PTY, DI, MS Yes
TA/TP Yes
RT (Radio Text), RT+ Yes
PS (Program Service name) Yes
TMC, ODA Yes
Group Analyzer Yes
BER Analyzer Yes
Group Sequence Display Yes
RDS RAW Data Display Yes

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- 11 -
FFT SPECTRUM ANALYSIS (RF, COMPOSITE, AUDIO)
Signal Sources RF (IF), MPX, Left, Right
FFT length 2048 points
Dynamic range 90 dB
SCOPE ANALYSIS (RF, COMPOSITE, AUDIO)
Signal Sources RF (IF), MPX, Pilot, RDS, Main, Sub, Left, Right
Record length 4096 points
Dynamic range 90 dB
METERING ACCURACY
RF Level ±1 dB, 0 to 100 dBµV
MPX Power ±0.2 dBr, -12 to 12 dBr, 0.1 dBr resolution
Total, Pos, Neg ±2 kHz, 10 to 100 kHz, 1 kHz resolution
Pilot, RDS ±0.5 kHz, 1 to 12 kHz, 0.2 kHz resolution
Audio ±1 dB, +10.0 to -55.0 dB, 0.1 dB resolution
OUTPUTS
Audio (L, R) +12 dBm, 600Ω , balanced XLR Connector
AES3 (L, R) 5.0 Vp-p, 110Ω , balanced XLR Connector
Alarms Terminals on rear panel, optoisolated
Headphone 6,3mm (1/4”) Phone Jack
COMMUNICATION INTERFACES
USB B-type Connector
Ethernet 10/100 Base-T RJ45 Connector
GPS RECEIVER
Number of channels 50
Antenna Pre-amplied, 5m of cable, magnetic
Connector SMA, rear panel
MEASUREMENT STORAGE
Storage 2GB Build-in Memory Card
Data format Text, CSV
POWER REQUIREMENT
Power Supply 12 DC (11-15V) / 2A max at 12V
Connector XLR (on rear panel)
SIZE AND WEIGHT
Dimensions (W;H;D) 210 x 76 x 215 mm
Shipping Weight 2kg

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- 12 -
BLOCK DIAGRAM
A simplied block diagram of Radio Explorer II is shown below
Because of the all-digital, minimalist-discrete-component nature of device circuitry, we have
not provided schematic diagrams of the Radio Explorer II in this Manual. Please, note that:
NO USER-SERVICEABLE COMPONENTS INSIDE.
REFER ALL SERVICING TO
QUALIFIED TECHNICAL PERSONNEL.

- 13 -
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FRONT PANEL
OK
PHONES
POWER
LOW RF
MULTIPATH
GPS FIX
FM R ADIO A NALYZER - R ADIO E XPLORER II
12
8
4
5
6
7
3 3 3 3
1. High resolution OLED Graphical Display.
2. Navigational Buttons – UP and DOWN, LEFT and RIGHT and OK buttons are used to navigate through the OLED menus selecting various functions
and parameters.
3. Soft Buttons – will be referred to as (left-to-right) SB1, SB2, SB3 and SB4.
4. Power indicator
5. LOW RF – This LED shows that the incoming RF signal of the tuned frequency is below the specied threshold.
6. Multipath – This LED shows that the Multipath of the tuned frequency is above the specied threshold.
7. GPS FIX – The LED indicator will be lit when the GPS receiver acquires a GPS x. In case of poor GPS reception or insufcient satellites the LED
will remain unlit.
8. PHONES – The 1/4’’ (6.3mm) phone jack provides the audio signal of tuned station for listening.

- 14 -
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REAR PANEL
LAN USB GPS
ANT POWER
12V / 2A
GPO ANT 1 ANT 2
LEFT RIGHT AES / EBU
www.devabroadcast.com
MADE IN BULGARIA
1233
4 4
5
67
8
1. POWER CONNECTOR - DC 12V;
2. AES/EBU OUTPUT – XLR connector for digital audio output;
3. PROGRAM OUTPUT – XLR connectors for Left and Right analog audio outputs;
4. ANTENNA INPUT – 75 Ω BNC connector for Antenna input;
5. GPS ANTENNA – Consumer-standard SMA connector for GPS Antenna input;
6. USB – USB 2.0 Communication Port
7. LAN – 10/100 Mbit Ethernet port
8. GPO – Optoisolated, Female D-Sub 9 pins;

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- 15 -
REAR PANEL GPO TERMINAL
GPO
LEFT RIGH
12345
6789
1 - + 12V DC
2 - GPO1 Collector
3 - GPO2 Collector
4 - GPO3 Collector
5 - GND
6 - GPO1 Emitter
7 - GPO2 Emitter
8 - GPO3 Emitter
9 - GND
LOAD
2
6
GPO1
LOAD
2
6
GPO1

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- 16 -
Before you start
UNPACKING AND INSPECTION
Upon receipt, the equipment should be inspected for possible shipping damages. If such are
found or suspected, notify the carrier at once and contact DEVA Broadcast Ltd. The original
shipping carton box and packing materials should be kept for possible reuse, in case of return for
Warranty repair, for example. Shipping damages as a result of improper packing for return may
invalidate the Warranty!
IT IS VERY IMPORTANT that the “Product Registration Card” included in the Manual be
completed accurately and returned. This will assure coverage of the terms of the Warranty and it will
provide a means of trace in case of lost or stolen equipment. In addition, the user will automatically
receive SERVICE OR MODIFICATION INSTRUCTIONS from DEVA Broadcast Ltd.
RADIO FREQUENCY INTERFERENCE (RFI)
Although we have made provision for Radio Explorer II installation in the immediate proximity
of broadcast transmitters, please do practice some care using the unit near abnormally high RF
elds.

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- 17 -
SAFETY PRECAUTIONS
Always observe the safety precautions!
The following safety precautions provide important information intended to prevent personal
injury to the operator and others, and property damage.
• Theservicingofelectronicequipmentshouldbeperformedonlybyqualiedpersonnel
only;
• Before removing the covers, Radio Explorer II must be switched off and the power cable
unplugged;
• Never touch the wires or the electrical circuits;
• Use insulated tools only;
• Never touch the metal semiconductor. It might carry high voltages;
• For removing and installing electronic components, follow the recommendations for handling
MOS components.
ATTENTION: Radio Explorer II has an internal Lithium battery. Do not try to re-charge this
battery! Please contact us for detailed instructions in case the battery need to be changed.
DEVICE CONNECTION
1. Connect the supplied FM and GPS Antennas to the BNC and SMA connector, placed on the
rear panel of the device;
2. Select a suitable location for installation of the GPS antenna that would allow routing of the
antenna cable to the Radio Explorer II and also would provide a clear view of the sky for a
good satellite reception;
3. By using the supplied Car Cigarette Lighter adapter, connect Radio Explorer II to the Car
Cigarette Lighter;
4. Congure the desired operating mode – Logger, PI/CALL Campaign or Interactive mode.
NOTE: Make sure that you have routed the cable in such a manner which would prevent
pinching and/or cutting the cable by doors, windows or trunk lids, when opened or closed.

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- 18 -
Operating Modes
The Radio Explorer II is a multifunctional, easy to use tool, designed to evaluate FM broadcast
band congestion and to measure and store all important radio broadcast parameters in a Log le.
This is a stand-alone solution for running surveys - no additional tools are needed. You can setup
for observation up to 50 preselected channels.
The Radio Explorer II utilizes three modes of operation. We recommend choosing the proper
operating mode before the observation of the signal is commenced.
LOGGER MODE
This mode is used for on-eld conguration and observation. Use the front panel Navigational
Menu and OLED display to congure the Radio Explorer II or to observe a specic station and
GPS information. Radio Explorer II can be set to measure automatically one or multiple preselected
frequencies (Up to 50).
PI/CALL CAMPAIGN MODE
Up to 10 stations can be chosen. Radio Explorer II will automatically detect the used frequency.
While the campaign is running, the chosen stations will be monitored; Radio Explorer II will
automatically switch over between the variable frequencies during movement - just as the car
radio of your listeners.
This mode is used for running Campaign Surveys. It is necessary that the Campaign Channels
and supplemental Radio Explorer II settings be pre-congured before starting a campaign. No
additional adjustments or settings will be required, except for the occasion when the campaign is
to be stopped.
INTERACTIVE MODE
This is the recommended operating mode for stationary FM observation which allows the user
to perform a signal evaluation by changing the desired frequencies and monitoring the received
data.
Apart from allowing management of Radio Explorer II via the Front panel Navigational Menu,
WEB Interface and Software, this mode is perfect for Band scan campaigns.

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- 19 -
Navigation through OLED Menu
Radio Explorer II can be operated in three methods: through the Front panel navigational menu,
DEVA Device Manager Software or via a standard WEB Browser.
NAVIGATIONAL BUTTONS
UP–DOWN, LEFT–RIGHT and OK buttons, like the Soft Buttons, are used to navigate through
the menus, for selecting various functions and parameters of Radio Explorer II. The Main Menu
structure has an up-and-down basis, expanded with left-to-right branches.
SOFT BUTTONS
Used for navigation through the menus, quick access to the parameters, modes, functions and to
alter their values. The Soft Buttons indicators are placed on the bottom side of the OLED display.
Depending on the currently selected menu context, the indicators change their function. The Soft
Buttons will be referred to as (left-to-right) SB1, SB2, SB3 and SB4.
The purpose of all Soft Button corresponds to the selected menu page. Most pages have the
same or similar functional areas. The corresponding functions as Function, Menu Page, Parameter
to be changed, etc., linked with the Soft buttons will appear as labels above them.
For example:
– Discard changes being made;
– HOME PAGE will be selected;
– Return to previous page;
– Alternating low threshold button;
NOTE: On some pages, the Header and Soft button area will disappear in order to expose the
content underneath.

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- 20 -
OLED DISPLAY
Radio Explorer II has an easy to read, high-resolution OLED graphical display that visualizes
all measurements of the received signal and settings. Upon switching it on, the Company Logo
and model of the device will be displayed. After a few seconds the Start-up screen will disappear,
replaced by the Main Screen. This is the starting point of the navigation process.
The Radio Explorer II’s OLED display has three function areas: Header, Soft Buttons and Main
Screen Working area.
OLED display with function areas