Spirent SR5500M Wireless RF Channel Emulator

Rent Spirent SR5500M Wireless RF Channel Emulator
Enlarge Image
Request Quote Print Page

The SR5500M Wireless Channel Emulator is the most complete and efficient solution available for accurately testing SISO and 2x2 MIMO wireless receivers. The system can be configured to manage intricate MIMO-OTA testing (via simplified graphical controls) and to perform Virtual Drive Testing (VDT) to reduce the cost and time burdens associated with drive testing.

The SR5500M helps isolate performance issues early in the development and design verification cycle, accelerating time to market and minimizing post-deployment issues.


  • The SR5500M emulates wideband radio channel characteristics such as time-varying multi-path delay spread, fast fading, shadow fading and channel loss for advanced receiver implementations using diversity, beamforming and MIMO
  • Optional configurations let you stick to your budget without risk. Systems are always fully upgradeable to our most powerful modular configuration
  • Spirent’s exclusive Fading Lab lets you create a repeatable RF environment from data sets, whether captured on channel-sounding equipment or generated in software
  • An advanced fading engine ensures accurate testing of sophisticated technologies like E-UTRA (LTE), HSPA, HSPA+, EV-DO, WLAN and WiMAX
  • Spirent’s exclusive DEE gives you the flexibility to quickly and easily turn simple spreadsheets into complex RF scenarios ready to use for testin


  • Research and Development
  • Design Verification
  • Conformance Testing
  • Performance Testing (Virtual Drive Testing)
  • Product Evaluation
  • Base Station, Node-B and Terminal Device Testing
  • Diversity, MIMO and Beamforming
  • CDMA2000 1X and EV-DO
  • WiMAX (802.16) Fixed and Mobile
  • Spatial Channel Modeling (SCM, SCME, and WINNER/WINNER-II)


RF Inputs

2 (inter-unit synchronization allows up to 8)

RF Outputs

2 (inter-unit synchronization allows up to 8)

Digital Channels

2 per unit (expandable to 8 with MIMO Option)

RF Configurations

SISO, SIMO, MISO, MIMO (2x2, 2x4, 4x2, 4x4, 8x2 uni- or bi-directional), and Beamforming


26 MHz

RF Input

Frequency Range: 400 – 2700 MHz
(w/ 6-GHz-EX option): 3300 – 3850 MHz, 4100 – 6000 MHz

Level Range: +5 to -32 dBm @ 400 to 2700 MHz
(w/ 6-GHz-EX option): -5 to -32 dBm @ 3300 to 3850 MHz
(w/ 6-GHz-EX option): -5 to -32 dBm @ 4100 to 6000 MHz

Level Resolution: 0.1 dB

Damage Level: > +20 dBm

Input Power Meter
  • Continuous mode
  • RF Burst-triggering mode for gated signals
  • Settable duty cycle mode
RF Output level Range: -30 to -110 dBm @ 400 to 2700 MHz
(w/ 6-GHz-EX option): -35 to -110 dBm @ 3300 to 3850 MHz
(w/ 6-GHz-EX option): -40 to -80 dBm @ 4100 to 6000 MHz
Resolution: 0.1 dB
Accuracy: +/-1 dB
Residual EVM

Better than -36 dB typical per sub-carrier, measured at -50 dBm output power; actual value depends upon signal format, symbol rate, etc.


Better than 1.5:1

Independent Paths

up to 24 paths per channel (384 total paths)

Relative Path Delay

0 – 2000 µs, 0.1 ns resolution

Relative Path Loss

0 – 32 dB

Dynamic Power Delay Profiles
  • Birth-death, Sliding (moving propagation)
  • Supports dynamic change of path number, relative power and delay
  • High-Speed Train (HST) profiles
Dynamic Environment Emulation

Controllable Parameters
State duration, channel output level, AWGN on/off, C/N, path on/off, relative power and delay, LOS AoA, K factor, frequency shift, Doppler velocity, MIMO branch phase and power imbalance.

Channel Model Update Rate
100 times per second

MIMO, dual and single channel mode; RX and TX diversity modes

Triggered Play, Free Run

Standards-Based Models

LTE, WiMAX, UMTS, CDMA2000®, WLAN, GSM, and pre-standard models available from Customer Service Center

Other Models


Fading Engine Type

Real-time generation of fading environment


Types: Rayleigh, Rician, freq shift, phase shift

Fading Velocity: 0.1 to 2398.33 km/h @ 900 MHz; Resolution of 0.1 km/h

Repetition Interval: > 24 hours

Relative Phase: 0 – 360 degrees, 0.1 degree resolution

Rician K factor: -30 to +30 dB

Level Crossing Rate (LCR) Accuracy: < * 2.5% deviation from theoretical LCR curve of the simulated vehicle velocity

Fading Power Spectrum: Classical 6 dB, Flat, Classical 3 dB, Rounded, Rounded 12 dB

Correlation: Envelope and Component; Complex correlation is included with MIMO option

Log-Normal Fading
  • Fading Rate: 0.00 to 20.00 Hz
  • Standard Deviation: 0 to 12 dB
MIMO Option


Baseline 2x2
Modularly expandable to uni/bi-directional 2x4, 4x2, 4x4

AWGN - option
  • C/N Ratio: -30 to +32 dB
  • Accuracy: +/-0.1 dB for -20 to 15 dB ratios
  • Bandwidth: 26, 13, 6.5, 3.25, 1.625 MHz
  • Fidelity: Meets or exceeds all 3GPP, 3GPP2, WLAN, WiMAX, and LTE requirements
  • Sequence Duration: > 2 hours
  • Settable Modes: C/N, C/No, Eb/No
Fading Data Playback - option

Playback data can be collected (via a channel sounder) or synthesized in software

Control Interface

Ethernet or GPIB


10 MHz internal reference accuracy:
1 ppm, can be locked to external reference

AC Power:
250 watts typical steady state, 45 watt maximum additional for 6 GHz Option

19-inch rack mountable
Height/Width/Depth 8.75”/16.88”/21” (22.22 cm/42.88 cm/53.34 cm)
Weight: 65 pounds (29.5 kg)