R&S CMA180 RADIO TEST SET

R&S®CMA180 RADIO TEST SET The reference in radio testing Product Brochure Version 05.00

AT A GLANCE The R&S®CMA180 is a radiocommunications tester for radio systems that operate in the 100 kHz to 3 GHz range. Its technology is based fully on digital signal processing and advanced computing. Intuitive operation and efficient measurement capabilities make the R&S®CMA180 an indispensable tool for performing radio measurements. The R&S®CMA180 demodulates and modulates all com‑ waveforms from software defined radios (SDR), and then mon analog RF signals, making it ideal for testing trans‑ loaded into the R&S®CMA180 and replayed. The advanced mitters and receivers. For receiver tests, audio signals and efficient user interface makes it easy to use the from the internal generators or from external sources R&S®CMA180. Users can quickly access all settings and can be modulated onto the RF carrier. The audio signals easily perform measurements. Measurement results are demodulated by the device under test (DUT) are fed into clearly and conveniently displayed. the R&S®CMA180 via analog or digital inputs and then analyzed. For transmitter tests, the R&S®CMA180 demod‑ The R&S®CMA‑XRT100 setup – a combination of the ulates the received signal and measures the demodulated R&S®CMA180 and R&S®CMW100 communications manu‑ audio signal and the RF signal. facturing test set – can extend the bandwidth to 160 MHz and the frequency range up to 6 GHz. This makes the In addition to the analysis of analog signals, the R&S®CMA180 ideal for broadband applications. R&S®CMA180 supports digital modulations such as DMR, APCO P25, dPMR, NXDN and TETRA. Apart from these The optional ILS, VOR and marker beacon generator as narrowband radio standards, the test set also supports well as VoIP support in line with EUROCAE ED‑137B/C LTE. This means that the R&S®CMA180 is also able to test make the R&S®CMA180 invaluable for air traffic control state‑of‑the‑art multimode radios. The test set also incor‑ (ATC) and radio navigation. The R&S®CMA180 can be porates a digital signal generator and analyzer for digital powered by batteries, making it independent and portable. r eceiver and transmitter measurements. Results are displayed in a straightforward manner and the graphical user interface is easy to operate. Using the ARB generator, users can play back nearly any type of signal. These signals can be generated with MATLAB® or R&S®WinIQSIM2™, including proprietary The R&S®CMA180 with a DUT. 2

KEY FACTS ► Frequency range from 100 kHz to 3 GHz ► Use of R&S®NRP and R&S®NRT power sensors – no configuration required ► Analog modulation and demodulation (CW, AM, FM, PM, SSB) ► I/Q recorder and ARB generator ► Up to 150 W peak input power and up to ► Digital signal analysis of proprietary waveforms 100 W continuous input power ► ILS, VOR and marker beacon generator ► Signal level for receiver measurements ► VoIP in line with EUROCAE ED-137B/C for can be lowered to –140 dBm ATC radios ► Integrated audio generators ► Digital receiver and transmitter measurements ► Audio quality tests (SINAD, THD, SNR) (DMR, APCO P25, dPMR, NXDN, TETRA) ► Integrated sweeping spectrum analyzer, ► POCSAG and Zigbee receiver measurements tracking generator and oscilloscope BENEFITS All-purpose device Testing multimode radios ► page 4 ► page 14 Accurate and flexible High-performance extension ► page 6 ► page 15 Extensive measurement functionality Test features for special applications ► page 8 ► page 16 Convenient operation Test automation with R&S®CMArun software ► page 12 ► page 20 Digital receiver and transmitter measurements Wide range of options and add-ons ► page 13 ► page 22 Rohde & Schwarz R&S®CMA180 Radio Test Set 3

ALL-PURPOSE DEVICE Diverse, future-ready configuration options Mobility The R&S®CMA180 has a frequency range from 100 kHz to The R&S®CMA180 can be equipped with an AC power 3 GHz, making it ideal for testing all common analog radio supply for operation at 110 V to 250 V or a DC power systems. Input levels up to 150 W are no problem for the supply for operation at 10 V to 30 V. Equipped with a DC test set. The flexible internal switching capabilities for the p ower supply, the R&S®CMA180 can also be powered via audio and RF paths make the R&S®CMA180 suitable for a a vehicle's power supply. The DC power supply can be wide range of test requirements. connected to an external AC/DC converter for AC opera‑ tion at 110 V to 250 V. Users can configure the internal generators, external audio sources, filters and measurements depending on the An optional battery pack ensures maximum mobility and application. In the predefined test scenarios for receiver, turns the R&S®CMA180 with DC power supply into a transmitter and duplex tests, the RF and audio paths are portable tester that can be brought directly to the DUT. preconfigured. This saves time and eliminates configura‑ Equipped with the battery pack, the portable, multifunc‑ tion errors for standard test cases. If the R&S®CMA180 is tional radio test set is ideal for measurements in vehicles to be used for applications other than these standard test and aircrafts. configurations, the expert mode allows users to access all configuration options. An optional display protective cover that can be easily a ttached to the front of the instrument reliably protects the R&S®CMA180 display and front panel. The display protective cover protects the R&S®CMA180 for mobile applications. 4

Applications in the R&S®CMA180 frequency range 30 MHz 300 MHz 3000 MHz VHF UHF 30 145 443 868 2400 MHz The R&S®CMA180 with optional b attery pack for mobile applications. Rohde & Schwarz R&S®CMA180 Radio Test Set 5

ACCURATE AND FLEXIBLE Top RF performance for transmitter and receiver tests Many different connectivity options For RF transmitter tests, all relevant parameters are The R&S®CMA180 offers many connectivity options that measured, including transmit power, transmit frequency, make it possible to realize almost any type of application. frequency error and modulation parameters. The trans‑ For computer accessories such as a mouse and keyboard, mit power can be as high as 150 W. A spectrum analyzer there are USB ports on the front and rear panels. The front is available for examining the signals in the frequency panel includes two additional analog audio outputs, two domain. Harmonics and the adjacent channel power can audio inputs and three RF connectors. also be measured. The R&S®CMA180 can be integrated into a LAN via the To investigate the receiver's sensitivity, RF signals are Gigabit Ethernet port on the rear panel, providing a con‑ generated at very low powers. The signal power can be venient way to perform software updates over the net‑ r educed to as low as –140 dBm. To analyze the audio sig‑ work. The R&S®CMA180 can also be remote controlled. nal, the audio signal demodulated by the DUT can be Trigger, clock, SPDIF, TTL inputs/outputs and relay ports played back to the R&S®CMA180 via BNC or SPDIF. are located on the rear panel. External connection via relays and TTL inputs/outputs. 6

Switching and controlling external equipment The rear panel includes a D‑Sub connector for controlling external equipment or DUTs. Two relays, four TTL outputs and four switchable TTL inputs/outputs are available. Remote control commands can be used to address and evaluate relays and TTL inputs/outputs in order to switch instruments or query their status. The R&S®CMA180 per‑ forms both measurement and control tasks. Proprietary interfaces can also be addressed. These features make the R&S®CMA180 a key element in any radiocommunications test system. Rear view of the R&S®CMA180. Rohde & Schwarz R&S®CMA180 Radio Test Set 7

EXTENSIVE MEASUREMENT FUNCTIONALITY Analog modulation and demodulation The R&S®CMA180 supports CW, AM, FM, PM and SSB modulation and demodulation methods. For receiver mea‑ surements, external signals that are fed in via the analog or digital audio inputs, as well as internally generated sig‑ nals and audio files, can be modulated onto an RF carrier. For transmitter measurements, the transmitter signals are demodulated and analyzed. The spectrum analyzer is used to display demodulated audio signals. Depending on the type of modulation, either the modulation deviation or modulation depth is measured and displayed. For receiver Working with DCS. tests, the RF generator can produce signaling tones and bit sequences in addition to the wanted signal. The user has access to a CTCSS and configurable sub audio tones. DTMF, five‑tone sequences and the digital CDS technique are all supported. The test set also provides the necessary measurements to analyze the frequency, duration, frequency deviation and bit errors of the generated signals. Audio generators The R&S®CMA180 is equipped with four internal audio generators that can generate two tones simultaneously and modulate them onto the RF carrier. Depending on the generator used, the signal is available to the internal RF modulator or at the audio ports. If the signal is generated for an external application, the user has a choice of analog The multitone generator offers versatile settings. or digital output (SPDIF). The levels can be set as required. If the signal is to be modulated onto the RF carrier, the modulation characteristics can be configured. Multitone In addition to single sine tones, the audio generators can generate up to 20 tones simultaneously that can be fed to the AF connectors or used as a modulation source for FM, AM, PM and SSB. The frequency and level of each tone can be tuned individually. Two tone Two‑tone measurements such as SSB linearity measurements can be performed using the two‑tone measurement function. The multitone generator generates up to 20 tones. 8

Audio quality tests FFT spectrum application All audio signals – both externally fed signals and demodu‑ The integrated FFT spectrum application is used to lated audio signals – can be analyzed. Highpass, lowpass observe the test signal in the frequency domain. Users can and weighting filters can be applied to the audio signals. set markers and insert minimum, maximum and average The quality of the audio signal is determined with SINAD, curves. Both the span and the assessment bandwidths are SNR and THD. Users can select any frequency to be the configurable. In the zero span mode, triggers help users test frequency. SINAD, SNR and THD are determined optimally display and investigate transients. The transient and displayed simultaneously. There is no need to switch signals to be analyzed can be broken down into I and Q between SNR and SINAD measurements. The spectrum components and displayed graphically, significantly simpli‑ analyzer is used to examine the signals in the frequency fying analysis of radio transients. domain. Automatic measurement routines The R&S®CMA180 can automatically perform measure‑ ments that normally require extensive manual setup. It provides automatic measurement routines for ► TX modulation sensitivity ► RX sensitivity ► RX squelch ► RX IF bandwidth During the RX sensitivity measurement, for example, the RF level is reduced until a predefined SINAD value is reached. The measurement then ends and the RF level is displayed as the measured value. Detailed analysis of audio quality. I/Q view of FFT spectrum. Rohde & Schwarz R&S®CMA180 Radio Test Set 9

Adjacent channel power (ACP) and occupied bandwidth The ACP measurement determines the power that a trans‑ mitter emits into adjacent channels. This key measurement for channel based radiocommunications helps to mini‑ mize interference in adjacent channels. Channel and mea‑ surement bandwidth settings can be adjusted as needed. Results are presented in graphical and tabular form. The occupied bandwidth can be measured to determine the bandwidths occupied by an adjustable percentage of the power. Oscilloscope Adjacent channel power measurement with adjustable channel and The integrated oscilloscope shows the audio signals m easurement bandwidths. that are fed into the audio ports, including the demodu‑ lated audio signals for transmitter tests. Marker functions simplify analysis of these audio signals. Audio signals can be viewed in both the time domain and in the frequency domain thanks to FFT, allowing easy and comprehensive analysis of all audio signals. Built-in sweeping spectrum analyzer with time domain analysis (zero span) The R&S®CMA180 features a built‑in sweeping spec‑ trum analyzer. Extensive configuration options make this analyzer a universal tool for testing all types of DUTs. The spectrum analyzer has two operating modes: full span and user‑defined spans. The zero span mode enables analysis in the time domain. In combination with the triggers, it is possible, for instance, to display transients. Audio signal analysis with built-in oscilloscope. Burst signals can also be analyzed in the spectrum ana‑ lyzer's time domain. Depending on the sweep time set‑ ting, the video trigger allows users to display one or more bursts. The burst duration is determined in the time d omain view. The signal edges of burst signals can also be analyzed. Using the video trigger and the configurable trigger off‑ set, acquisition begins with the rising edge. By setting the sweep time accordingly, it is possible to display exactly one burst. Setting markers makes signal analysis easier and quickly delivers precise measurement results. Highpass filter measurement with the built-in tracking generator. 10

Intermodulation with integrated interfering signal Inter. Inter. (FM) (CW) f Interference Δf Δf > 65 dB Signal Δf: 1 MHz to 10 MHz Frequency m odulation with an i ntegrated interfering signal. The spectrum analyzer's max function is used to e xamine measure co‑channel rejection and adjacent channel sup‑ the hopping range when analyzing hopping radio s ystems. pression, eliminating the need to employ an additional Even when the hopping sequence is unknown, it is generator to generate the interfering signal. possible to gain information about the frequency range. Gaps indicate unused frequencies. Each burst can also be The R&S®CMA180 simplifies intermodulation measure‑ a nalyzed in the time domain. ments since the user can generate the two RF signals at different levels within the available 20 MHz bandwidth. Tracking generator Both signals – the wanted signal and the interferer – can The built‑in tracking generator makes it easy to deter‑ be modulated independently of one another. The levels mine the frequency response of passive and active RF of the two signals can also be set independently of one components. With an external VSWR bridge, the track‑ another. No additional equipment is needed to perform ing generator can also be used for VSWR measurements. complex measurements. This extends the range of applications to include antenna measurements. Location services – GPS, Galileo, GLONASS, Beidu Many of today's radios have GPS, Galileo, GLONASS or Built-in interferer Beidu receivers. These can be easily tested using the The R&S®CMA180 can generate two RF signals. If these R&S®CMA180. The test set outputs a position signal that signals are positioned outside of the DUT's receive win‑ is received and analyzed by the DUT. The position on the dow in such a way that at least one intermodulation prod‑ DUT can then be compared to the position sent by the uct lies within the receive window, it is possible to assess R&S®CMA180. the receiver quality. The built‑in interferer allows users to Rohde & Schwarz R&S®CMA180 Radio Test Set 11

CONVENIENT OPERATION Advanced touchscreen plus rotary knob Various ways of displaying parameters and measurement Users can operate the R&S®CMA180 completely via results the touchscreen. All functions can be quickly accessed. Users have a choice of two modes for displaying param‑ Measurement results are clearly and conveniently dis‑ eters and measurement results. The tab mode is best for played. Users can also use the rotary knob to change set‑ displaying the values in detail. All generator and analyzer tings, an especially useful feature that allows them to values are displayed in separate full‑screen tabs. scroll through the frequencies and levels and immediately see the impact on the measurement results. The split‑screen mode offers a complete overview, where the generator and analyzer values are displayed simultane‑ Predefined test scenarios for minimal configuration effort or ously. Generator settings are changed on the left side of expert mode for maximum freedom the screen and the results are instantly displayed on the Predefined scenarios for standard measurement tasks right side. The operating controls for the spectrum ana‑ enable users to configure the R&S®CMA180 software and lyzer can be hidden, and the results displayed across the hardware with a finger tap. Predefined scenarios are pro‑ entire screen for optimum viewing. vided for TX measurements, RF measurements, spec‑ trum analysis, etc. In expert mode, users can c onfigure Special trim view the R&S®CMA180 as required. Audio and RF paths can The trim view graphically displays selected measurement be switched as needed. All generators and a nalyzers values and their limits. In contrast to scalar displays, this are a ccessible and configurable. In this mode, the view makes it easier to recognize when the values fall R&S®CMA180 can perform tasks that go far beyond stan‑ below or exceed limits and facilitates comparison of trans‑ dard analog measurements. mitters and receivers. Remote control for easy integration into automated test environments via LAN or GPIB When remotely controlled via Ethernet or an optional GPIB Select predefined test scenarios or switch to expert mode. interface, the R&S®CMA180 can be seamlessly integrated into automated test environments and used for round‑the‑ clock testing. Clearly organized touchscreen. Special trim view. 12

DIGITAL RECEIVER AND TRANSMITTER MEASUREMENTS Digital receiver measurements This allows the R&S®CMA180 to analyze a wide range of The R&S®CMA180 can generate test signals for d igital digital signals. The user simply selects the standard to be radio standards. Signal content can be configured to tested, and the test set automatically sets the required match test requirements. Signals can carry audio test analyzer parameters. The R&S®CMA180 supports DMR, tones or pseudo random bit sequences (PRBS), for dPMR, NXDN, APCO P25, TETRA and LTE. Digital and e xample. Signaling parameters such as DMR color analog measurements are started at the push of a button. code can be configured on the instrument's intuitive Results are displayed in an overview and in detailed graphs GUI, m aking it easy to perform receiver tests for digital and diagrams. s tandards such as DMR, NXDN, APCO P25 and dPMR. Custom mode The digital signal generator can be used for testing d igital In custom mode, users can define and measure their own communications systems, and also supports POCSAG signals. Signals are defined with the signal analyzer. The and Zigbee. For TETRA and LTE, signals generated with R&S®CMA180 then tests the signals. This is particularly the R&S®WinIQSIM2™ simulation software can be played important in the case of tactical radios, where the wave‑ back. form is often classified. Digital transmitter measurements The integrated vector signal analyzer demodulates digital signals and delivers results, including eye diagrams, symbol distribution and scalar values such as frequency deviation and EVM. Digital signal g enerator for receiver tests (left) and overview of digital measurements (right). Rohde & Schwarz R&S®CMA180 Radio Test Set 13

TESTING MULTIMODE RADIOS Modern public safety radios support LTE, Wi‑Fi and LTE transmitter measurement Bluetooth® in addition to the classic trunked radio stan‑ The R&S®CMA180 uses an integrated vector signal ana‑ dards, e.g. TETRA, APCO and DMR. This means that the lyzer to measure transmitters. This signal analyzer is set up scope of tests also needs to include these technologies. for LTE by selecting the required standard and is then con‑ The R&S®CMA180 supports the measurement of classic figured automatically. If the LTE test object is set to trans‑ analog and digital radio signals through to LTE. mit mode, the R&S®CMA180 displays the measured power and EVM values. Other measurement images such as the constellation diagram are also shown. LTE receiver measurement The LTE receivers are measured using the ARB generator. This generator supports LTE waveforms that can be gener‑ ated with R&S®WinIQSIM2™ or MATLAB®, for example. The LTE receiver can evaluate these signals and thus deter‑ mine the sensitivity. The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Rohde & Schwarz is under license. LTE transmitter measurement. 14

HIGH-PERFORMANCE EXTENSION With its frequency range of 100 kHz to 3 GHz and mea‑ Frequency range and bandwidth extension surement bandwidth of 20 MHz, the R&S®CMA180 covers Waveforms that operate at a bandwidth of up to 160 MHz all common analog and digital standards. For applications and in a frequency range up to 6 GHz can be measured that go beyond this, the R&S®CMA180 can be fitted with a using the R&S®CMA‑XRT100 solution. A standalone ARB high‑performance frontend (R&S®CMA‑XRT100 setup). The generator is available for receiver tests. For the transmitter instrument has integrated operation and is controlled fully tests, the RF information is sent to the integrated vector via the R&S®CMA180. signal analyzer, where it is evaluated. The integrated oper‑ ation enables seamless work on the R&S®CMA180 and R&S®CMA‑XRT100. Parallel testing with the R&S®CMA-XRT100 Headline Increase in throughput thanks to parallel testing If multiple radios need to be measured, the parallel test approach offers an efficient solution: up to eight radios are connected to the R&S®CMA‑XRT100 at the same time and measured simultaneously. This saves a considerable amount of time, particularly in the case of receiver mea‑ surements, as they take much longer than the transmitter tests. R&S®CMA-XRT100 setup. Rohde & Schwarz R&S®CMA180 Radio Test Set 15

TEST FEATURES FOR SPECIAL APPLICATIONS Avionics generator for ILS, VOR and marker beacon signals Both a glide slope and localizer are available for ILSs. The The outstanding signal quality of the R&S®CMA180 makes signal parameters can be modified to meet test require‑ it an extremely versatile radio tester for aircraft. The test ments. DDM, SDM, modulation frequencies, etc., can set can analyze ILS, VOR and marker beacon signals be set. The settings are displayed on simulated on‑board for aircraft landing systems as well as airborne radio instruments, making it easy to compare target and actual signals. Equipped with a battery pack and antenna, the values. R&S®CMA180 is a standalone instrument that is ideal for aircraft maintenance. ILS glide slope generator. Generator settings for ILS localizer. 16

Numerous signal parameters are also available for VOR and marker beacon signals. ID signaling can be activated for all avionics signals. For avionics signals, the audio signal can be fed to the audio ports to generate the signal with an external signal generator. Configuration of VOR generator. Marker beacon settings. Rohde & Schwarz R&S®CMA180 Radio Test Set 17

Avionics VoIP generator and analyzer Configuration of the VoIP connection is straightforward The R&S®CMA180 incorporates a VoIP generator and and intuitive, and the status displays for the connection analyzer in line with EUROCAE ED‑137B/C. The VoIP inter‑ provide an excellent overview. The radio to be tested is face is fully integrated in the R&S®CMA180, and users connected to the test set via the integrated LAN inter‑ can switch between analog audio and VoIP testing at the face. It is also possible to connect multiple transmitters or push of a button. This allows easy and extensive testing of receivers via an optional LAN switch that is powered via a airborne radios via both the VoIP (LAN) interface and the USB cable, meaning that the R&S®CMA180 can be oper‑ analog a udio (RF COM) interface. ated independently of the mains supply. VoIP generator test setup Radio transmitter e.g. ¸SU4200 VoIP data ¸CMA180 Transmitter ► Decodes VoIP data ► Modulates RF with audio signal TX test RF modulated ► Demodulates RF signal with audio signal ► Analyzes audio signal quality VoIP analyzer test setup Radio receiver e.g. ¸EU4200C RF modulated with audio signal Receiver ¸CMA180 ► Demodulates RF signal ► Encodes audio signal VoIP data RX test ► Decodes VoIP data ► Analyzes audio signal quality 18

Waveforms (ARB) In the ARB waveform mode, the R&S®CMA180 processes I/Q data that is available as wave‑ form files, making it possible to generate any application‑specific modulation signals. The ̧ WinIQSIM2™ waveform creation tool allows users to create waveform files directly and conveniently. I/Q data can also be gener‑ ated using commercial software tools such as MATLAB®, Mathcad® and ADS®. This data must then be converted into the waveform file format using the Rohde& Schwarz Matlab transfer tool‑ box or the Rohde & Schwarz I/Q wizard. The R&S®WinIQSIM2™ graphical user interface also makes it possible to very quickly create dig‑ ital waveforms. FSK, PSK and QAM modulated test signals can be generated and then replayed using the R&S®CMA180. GPS, Galileo and GLONASS satellite navi‑ gation signals can also be generated with ARB file generation with R&S®WinIQSIM2™. R&S®WinIQSIM2™ and then l oaded into the R&S®CMA180 and replayed. Field to lab The I/Q recorder makes it possible to record RF signals via the RF ports. Signals can be recorded over a wired line or via an antenna thanks to the wide dynamic range of the R&S®CMA180. The signals are recorded and stored as I/Q data. The recorded data can be replayed on the ARB gen‑ erator or analyzed with the R&S®VSE vector sig‑ nal explorer software. Triggers and settable sample rates turn the I/Q recorder into a universal tool to simulate real‑ life scenarios in the lab or to generate reference signals. Recording RF signals for playback in the lab. Rohde & Schwarz R&S®CMA180 Radio Test Set 19

TEST AUTOMATION WITH R&S®CMArun SOFTWARE Ready-to-use solution for configuring application R&S®CMArun offers a separate run environment in which test sequences test sequences are created and executed using a mouse R&S®CMArun is available for test sequence control. It pro‑ and keyboard. Additionally, an R&S®CMArun component vides a graphical user interface for programming a test has been integrated into the R&S®CMA180 touchscreen, sequence. Individual settings and measurement tasks mainly to execute previously created test sequences. can be configured and arranged in a specific sequence. Sequences, loops and conditional queries help users eas‑ Extensive function library ily create and execute complex test sequences. Each set‑ The R&S®CMArun function library contains numerous test ting and measurement value is logged and then summa‑ functions that range from analog and digital receiver and rized and stored in a report. For measurements with limit transmitter tests to sensitivity measurements and loading values, pass or fail indicators can be displayed for each and starting waveforms in the ARB generator. measurement. The R&S®CMA180 can also be controlled using VISA drivers and SCPI commands. Control via SNMP, serial interfaces and SCPI Radios with an SNMP interface can also be controlled by R&S®CMArun and are handled like DUTs that have a serial interface. Entire test environments can be automated since other equipment such as power supplies can also be R&S®CMArun running on the R&S®CMA180. integrated via SCPI. Configuration of R&S®CMArun test items. Automatically generated test report from R&S®CMArun. 20