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Network Testing and Emulation Solutions

CT711 LANforge RF Noise Generator and RADAR Simulator

The CT711 RF Noise generator and RADAR Simulator is used for WiFi testing. The CT711 uses modified firmware to generate micro-second precision bursts of RF Noise. The burst width, burst spacing, and number of bursts are configurable. This can simulate some RADAR bursts and so be used for DFS testing.

In addition, this unit can create constant RF Noise to enabling testing CCA features in WiFi equipment. It is a test tool, and should be used in an RF Isolation chamber or other area where you will not interfere with legitimate RF Equipment or RADAR devices.

On occassion, especially with certain configured settings, the CT711 may have a corrupted on-air signal or fail to generate any signal at all. For this reason, we suggest testing in conjunction with an RF Analyzer so that you can be sure the on-air signal is as you expect.

The CT711 is controlled by the LANforge software suite, which includes a GUI management tool as well as CLI interface for automated scripting. If you do not already have a LANforge Linux system, then you will need to install LANforge on your own Linux hardware, or you will need to purchase an additional LANforge Linux system. Contact your sales representative if you have any questions.

The CT711 has no moving parts and will fit into a small travel bag or briefcase for easy portability.

The CT711 includes 1 USB WiFi NIC, 2 RP-SMA Female cable assemblies and USB Cable.


Larger Images: board package
NOTE: This product may have a different hardware configuration than the system pictured above.
Refer to your official quote for details.

NOTE: This product may have a different hardware configuration than the system pictured above.
Refer to your official quote for details.


Candela Technologies Inc., 2417 Main Street, Suite 201, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618

Example Network Diagram


Candela Technologies Inc., 2417 Main Street, Suite 201, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618

Quick Start Guide

  1. Install LANforge on Linux PC.
  2. Connect RF Noise generator NIC to PC.
  3. Connect LANforge-GUI to PC, and go to Port Mgr tab.
  4. Select the wiphy radio, click Modify.
  5. Select the channel in the Standard Configuration tab.
  6. Click on the RF Patterns tab.
  7. Select the values accordingly and press Apply.
  8. Verify RF pattern using RF Analyzer.


Candela Technologies Inc., 2417 Main Street, Suite 201, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618


LANforge RF Noise and RADAR Simulator Related Images

LANforge-GUI RADAR Simulator Configuration Screen

LANforge-GUI RADAR Simulator Configuration Screen

RF Analizer traces for Emulated RADAR Pattern


Candela Technologies Inc., 2417 Main Street, Suite 201, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618

Software Features

RF Noise Generator and RADAR signal emulator.
The RADAR signal emulation cannot handle pulse widths less than about 17us, so it cannot accurately support many of the RADAR signatures. In addition to emulating bursty RF noise and some RADAR patterns, this tool has proven useful for testing CCA when paired with a variable attenuator and configured for constant noise transmission. For the most precise pulse widths, use OFDM encoding and 54Mbps tx rate, one antenna, and a tx power of 10dbM or lower.

The configurables include:

None / TX-100
When TX-100 mode is selected, the rest of the fields can be modified, and when submitted, the transmitter on the NIC will be enabled accordingly.

CCK / OFDM / HT / DL-OFDM
Specifies the signal encoding. CCK has wider lobes and bleeds further into other channels. OFDM is a more square signal pattern and better stays on its channel. HT enables 40Mhz signal generation. DL-OFDM is a method of using 40Mhz channel width to send OFDM encodings.

Antenna 1 / Both Antenna
Specifies the antennas to use for signal generation.

HT20 / HT40
HT40 will use 40Mhz signal generation, HT20 will use 20Mhz signal generation.

Transmit Power
This is in units of 1/2 dbM. Using the higher values will cause NIC to bleed badly into adjacent frequencies and will generally show a corrupted signal. This may be useful for some testing scenarios, but for controlled signal generation you will probably want to keep the value below 20 dbM of power. For precise control of signal level, we suggest using a variable attenuator, like the CT 703.

Transmit Rate Encoding
This specifies the on-air encoding rate. For RF noise generation purposes, use higher rates for a more precise pulse width.

Pulse Width
This specifies the duration (in micro-seconds) for the transmitter to be enabled. The user may type in a specific value, and the LANforge-GUI has pre-set values in pull-down menus for common FCC and ETSI radar patterns. The current hardware supports a minimum pulse width size of about 17us.

Pulse Interval
This specifies the time (in micro-seconds) between starting to generate a pulse. This is also known as "Pulse Repetition Interval (PRI)". The user may type in a specific value, and the LANforge-GUI has pre-set values in pull-down menus for common FCC and ETSI radar patterns.

Pulse Count
This specifies how many pulses to generate before pausing for "sweep time". If you want to pulse continuously, set Sweep Time to zero. This is also known as "Pulses per Burst (PPB)". The user may type in a specific value, and the LANforge-GUI has pre-set values in pull-down menus for common FCC and ETSI radar patterns.

Sweep Time
This specifies how long to pause (in micro-seconds) between pulse bursts. This emulates Radar sweep time. Set this value to zero for continuous pulsing.

Hardware Specification

  1. RF Noise generator and RADAR signal Emulator.
  2. Includes ORiNOCO 8494-US 802.11A/B/G/N USB WiFi adapter and USB cable.
  3. Includes 2 SMA cable assemblies for conductive testing.
  4. Modified firmware and software to control the tool is included.

List Price: $4,995     List Price with 1 Year support (17%): $5,844


Additional Products

For a more complete WiFi testing setup, you may wish to consider the CT703 Attenuator, CT523 and CT525 series WiFi traffic generators.


Candela Technologies Inc., 2417 Main Street, Suite 201, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618


Candela  Technologies, 2417 Main Street, Suite 201, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1.360.380.1618
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Last modified: Thu Aug 31 14:12:45 PDT 2017