1. Introducing Narda
2. Introducing NRA
3. Introducing IDA-2
1
1. Willtron Radio Day’s 2014
Johann Saustingl
+43 2252 252804-30
+43 664 2076623
1. Introducing Narda
Narda is the market leader for
field strength test & measurement
equipment and components
2
1. Introducing Narda
1. Introducing Narda
Narda Test Solutions is part of the
L-3 Communications Group
Narda is the market leader for
field strength test & measurement
equipment and components
3
1. Introducing Narda
1. Introducing Narda
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› L-3 Communications › Established 1997
› 75 Business Units worldwide
› Annual sales $13 billion in 2012
› More than 50,000 employees
› Narda Group › 10 Divisions
› 80 years in business
› 2,800 employees
› Core competence in
› Microwave components
› Antennas
› Satellite communications
› Narda Test Solutions › 4 facilities
› 90 employees
› Specialized in
› Spectrum analyzers
› EMC receivers
› Broadband RF meters
› Remote monitoring stations
Narda Satellite
Narda East
USA Germany Italy China
Narda West
… …
19’’ Rack Mount Remote Analyzer
- Redefining RF Signal Analysis -
NRA Product Family
What is New Solution About ?
A Family of completely
new designed rack-mountable
spectrum analyzers offering
Frequency bands from 9 kHz to 6 GHz - unrivalled 12 GHz/sec scan
Best-of-class speed, accuracy, dynamical range and sensitivity
Fast integration into LANs or control via Internet by help of
ASCII command set, data-based or picture-based result transfer,
as well as web browser interface - best-of-class documentation
RBWs for both, small and wide band services based on FFT
On-board executable test set-ups for unrivalled speed
Low power consumption, small footprint – silent operation (no fan)!
Designed for Spectrum Monitoring
and Control & Management Systems
SatCom
• D-SNGs, Teleports, earth stations, naval sites,
mission-critical V-SAT sites, integrators
Broadcast
• TV / Radio / digital information services stations,
studios, network operators (towers), integrators
Wireless
• Cellular radio (BTS, NodeB, etc.), microphone and
camera (digital dividend), Air Traffic Control (ATC),
relay and telematics systems
Miscellaneous
• ATE, e.g. QA in electronics production
• Science, e.g. radio astronomy
• Educational, e.g. labs. of universities
• (weather, tactical) Radar systems
Family Overview
NRA-2500
NRA-3000
NRA-6000
SatCom Analyzer
Broadcast Analyzer
Wireless Analyzer
Small Footprint - Full Performance
Standard EIA Rack Mount :
19’’ / 1 HU ONLY / < 5 kg
Status LEDs
analyzer / LAN
Power Consumption < 25 VA
No fan No noise, no single point of failure
Small Footprint - Full Connectivity
N Connector
RF Input
Power Supply
100 - 240 VAC
50/60Hz
LAN / WAN
Ethernet
Power Supply
9 - 15 VDC*
USB
Local PC (now on front)
*planned
Overview Main Test Modes
Multi Channel Power Spectrum analysis Level Recorder Scope
Fast Overview
Channel Power:
graphical (bar) or
tabular view
Signal Details:
graphical or table view
Fast overview of
Signals over Time
for detailed
investigations
(zero span)
Details of
Signals over Time
for Signal analysis
In Real Time
Peak Value
Table
Broadband value (Programmable Band Integration)
I/Q Data Recording
Trigger Events
(zero span)
+ +
+ +
A Look Inside …
Main Board
Controller
FFT
Power Supply
AC / DC
RF Module with
Superheterodyne
Receiver
Three-Stage Hetereodyne Mixer
Hybrid Super Heterodyne FFT
Since FFT based analyzers are only capable of
considering narrow bands, one technique is to combine
heterodyne and FFT analysis for consideration of wide and
narrow spans. This technique allows for faster sweep time
This method is made possible by first down converting
(mixing) the signal (super heterodyne), then digitizing the
intermediary frequency and using FFT techniques to
acquire the spectrum.
One benefit of digitizing the intermediary frequency is the
ability to use digital filters, which have a range of
advantages over analog filters such as near perfect shape
factors and improved filter settling time. Also, for
consideration of narrow spans, the FFT can be used to
increase sweep time without distorting the displayed
spectrum.
Digital Processing on Main Board
LO
X ² X ²
MIN
AVG
MAX
ACT
FFT (Spectrum & MCP)
Scope
I
Q
Level (RMS &
Peak)
Video Filter
up to 32 MHz BW
Demod.
future option from ADC
IQ Data Recording Function
Sampling Rate identical to selected CBW
Memory of max. 250,000 data sets: I and Q value plus resp. frequency value
Maximum observation periods for RBWs of 32 MHz / 200 kHz / 100 Hz are: 7,8125 ms / 1,25 sec / 41,67 minutes, respectively
Trigger functions of Scope Mode (as in SRM) can be used
IQ data will be presented individually or combined over time
When post-processing recorded data every part of content can be extracted from IQ data – including contained user information itself (voice, video, FAX, data, telemetry, etc.) – many 3rd party software is available for that purpose
Constellation diagrams are very useful to present QoS or KPI of PSK or QAM modulated signals. In that case Q will be simply presented over I – after carrier frequency was synchronized with symbol rate. Thus IQ data will be presented at their ideal sampling times in order to detect deviation or noise => distortion of time/phase or amplitude
This analysis allows for simple signal classification, e.g. digital modulation, PSK-8 with symbol rate of 19 200 Baud OR analog modulation, FM with peak frequency deviation of 75 kHz
Gapless IQ data streaming up to 400 kHz BW
Separate IQ data channel (TCP or UDP) and control channel (TCP)
allow for change of parameters “on-the-fly”
=> e.g. user program is searching for max. signal level by modifying
MR/Attn and/or Fcent and/or BW !
- flag bits will indicate potential settling times (BW) – if any !
- time stamps are supporting this function, too
=> change of settings without data stream interruption
addresses monitoring applications in a very comfortable way
included in Scope and IQ data option
soft codecs on controller PC demodulate data stream into baseband
signal, e.g. for listening to analogue information (.wav)
=> lawful interception of voice/data/video
=> or continous QoS analysis of digital signals, i.e. KPI assessment
like constellation diagram or EVM or Eb/NO
New: IQ Data Streaming
Scope Remote with IQ Data
IQ Data of GSM DL Channel
IQ Data of GSM DL Channel
(Zoom)
New mode for spectra with approx. 25 times more data points
(27 k to > 600 k bins) => ‘high res. trace data’
Alternatively 400 bins are also possible => for fastest testing
=> real-time control systems
Application offers wideband analysis with multiple windows GUI
based on a single sweep
Multiple SA windows can be programmed by user,
e.g. one per carrier / band can be realized
N.B.: ITU-T Spectrum Monitoring Handbook asks for 12,5 kHz
channels and respective analysis and presentation of bins
=> NRA/IDA/SRM offering dF=RBW/2 => e.g. 20 kHz => 2 x bins
=> approx. every 10 kHz one result point !
600k Resolution SPECTRUM Mode
Application of High Res. SA
Binary Data Transfer Spectrum
Binary Transfer of Scope Data
Remote Desktop featuring high-speed
binary data transfer
Advantages of Narda Remote Interface
• Feedback (Handshake) after each and any command (Set & Get)
• Unambigous detection of end of command line: semi colon
- in SCPI: could be CR/LF or CRLF or …..
• Large result data fields can be read-out by ASCII or binary format
- up to 6 x 27k spectrum and 2 x 250k Scope test result points
• Easy to read programm flow and Log files based on structured
output as ASCII text
• Service layer for bringing into service or production apps.
plus special command sets
• Straightforward and quick command interpreter in NRA
- no short and long form command sets
• Warnings and auto-correction of parameters
Remote Communication LAN
• Use of standard HTML elements (text, pics., …)
• Runtime update of HTML content, e.g. Live screen in Web browser
• Support of Java Applets, e.g. NRA Web terminal
Security Aspects • Java Scripts not used
• Blocking of unused ports
NRA‘s Embedded Web server
Web Terminal
Broad Range of Remote Control
Parameter LAN (Internet) LOCAL PC
Interface Ethernet Static IP or DHCP
DNS supported
USB 2.0 Client
Command Set ASCII format ASCII format
Graphics-based ASCII-converted
screenshots in .png format
ASCII-converted
screenshots in .png format
Data-based ASCII commands ASCII commands
Web Browser
supporting Java
Applets
by standard Internet browser
on PC
not supported
Demo PC
applications
Programs included Programs included
Firmware Upgrade not supported supported
Versatile Usage When Integrating into C&M Systems
Available Software
Configurator (2) to set IP Address and establish Communication
Finder to find the NRA devices in a Network
USB Driver (1) to use the service interface for Configuration ….
Demo Application Programs (3) to log Data while communication and to
understand the possibilities
Liv
e (
3a)
Sp
ectr
um
Liv
e (3
b)
Mu
lti C
han
nel
Liv
e (
3c)
Level R
ecord
er
Demo Web Application (4) Terminal Program with screen viewer
Web
Term
inal
(4
a)
to s
en
d r
em
ote
com
man
ds
Liv
e D
isp
lay
Vie
wer (
4b
)
to u
nd
ersta
nd
wh
at
hap
pen
ed
aft
er a
com
man
d i
s s
en
d plus
Log files Remote GUI Bit grabber, etc.
Logical Entities
Web Browser e.g. Demo Java Applet
PC Application e.g. Demo examples
Integrated System Control Software e.g. C&M SW
Remote Control
Command Layer with
ASCII based command
set
Web
Server
Ethernet TCP/IP
NRA PC
Analyzer FW & HW
TCP Server
USB Client
USB 2.0
Satellite Signals
Satellites working in Ku-Band, i.e. Astra: 10.7GHz to 12.75GHz
Signals being transmitted by vertical and horizontal polarization
For consumer it needs to be cheap (low cost coax cables are used in
households to get the signal to the satellite receiver)
LNB (Low Noise Block Converter) converts signal from Ku-Band to L-
Band (950MHz to 2150MHz)
SAT Receiver operates at IF level and controls polarization and frequency
bands
By that principle channel capacity does increase by 4 times : 2 x 2 !
Summary of Function
V-Sat Signal in KU-Band
10.7-12.75 GHz
MUX MUX
Switching Matrix
Output L-Band
950-2130 MHz
Ve
rtic
al
ho
rizo
nta
l
10.7
-11.7
V
LN
B
11
.7-1
2.7
5
V
10.7
-11.7
H
11.7
-12.7
5
H
Switching acc. to „Marconi“ Standard
Low-Band High-Band
Vertical Polarisation Approx. 14V/22kHz ‚ON‘ Approx. 14V/22kHz ‚ON‘
Horizontal Polarisation Approx: 18V/22kHz ‚OFF‘ Approx: 18V/22kHz ‚OFF‘
Ku-Band, Astra: 10.7GHz to 12.75GHz
Switching Matrix LNB Control
NRA-3000LNB Version
Circuit board power supply &
control signals
Bias T to feed signal into RF path
Features of NRA‘s LNB Control Unit
Switching between 14V or 18V and 22kHz on/off :
two different DC levels and 2 different AC frequencies introduced
into opposite direction of signal path via passive Bias-T device
Power Supply of LNB: approx. 350mA
Power compensation of 1V
Short-circuit proof
Diagnostic function of LNB control hardware:
Notification of over-current and overheating
Information via Remote
Note:
‘LNB Option’ only offered
with NRA-3000 version
TOTAL SOLUTION
PC NRA
Fan-less design
Low power dissipation
=> Min memory /
min. CPU power
Free ressources
5…10 times faster
Remote communication
Alarms, Masks, SNMP
Distribution, Multi client
Reports, Email
Modem, Internet
Access Control
Complex test sequences
Data Base
NRA
– Integrators‘ Product of Choice -
Testing
Communication
Processing
(Min, Max, Avg)
References I
Monitoring, Decoding & Classification – UK / D
SatCom C&M Systems
Integrators – D /CH
References II
2/3/4G Cellular Network Monitoring – ARG
Wireless Link Surveillance - CH
Tactical SatCom Systems - F / US
SatCom Teleports - Lux
References III
Broadcast Stations & DSNGs – CAN/US/CH/D
Technology Partners for SatCom C&M Systems
- NRA Driver SW
NRA Product Roadmap Plans
NRA HW V.5 scheduled for late 2013 / early 2014
Further Improved Phase Noise specs.
Further Improved spurious specs.
Additional 10 MHz ref. input
…. to address upcoming high-end requirements in
signal classification / analysis, interference and DF
DVB-T 8 MHz UHF Channel: 486 – 494MHz
GSM DL TDMA Channel in Time Domain
NRA – the All-Rounder
for RF Spectrum & Signal Analysis