Candela Technologies Logo
Network Testing and Emulation Solutions

CT840a Large 2D-Turntable LANforge Chamber

The CT840a RF Chamber is used to isolate WiFi and other RF equipment from the outside environment. This allows more repeatable testing options. In addition, when combined with RF attenuators and WiFi traffic generators, chambers can be used to create emulated mesh and mobility scenarios, including the TR-398 automated test suite. The CT840a offers 85+ dB of isolation for excellent performance even in noisy environments, 2D turn-table for antenna orientation testing, and other features expected in quality chambers.




Larger Images: front back-diagonal back left right inside turntable

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

Hardware Specification

  1. Large 2D turn-table RF Shield Chamber
  2. Isolation: 70+ dB Example Isolation Test Results
  3. Frequency(GHz): 0.8 to 8GHz
  4. Standard Interfaces: 16x SMAs, USB 3.0, USB-C, 3x 10G Ethernet, 4K HDMI, RF Coax, Fiber, fan, DC power, universal A/C power strip. Other options available. HDMI filter does not have great RF isolation so it is not installed by default. RF-Pipe for coax/fiber passthrough is not installed by default either to protect from shipping damage. Both filters may be installed by customer with help from Candela support staff.
  5. RF Absorber material: -10dB to -20dB RF Absorber spec sheet.
  6. Directional Antenna Spec Sheet
  7. Includes built-in 2D turn-table with software automation support.
  8. Inside Dimension(mm): 890(W) 660(D) 510(H) Inches: 35(W) 26(D) 20(H)
  9. Outside Dimension(mm): 1092(W) 900(D) 940(H) Inches: 43(W) 35.5(D) 37(H)
  10. Weight: 150kg
  11. Working Temperature: Normal room temperature

List Price: $21,000     List Price with 1 Year support (17%): $24,570

Additional Feature Upgrades

Unless otherwise noted in the product description, these features usually cost extra:

  1. Configuring the CT840a

    1. The CT840a requires a network connection. Plug an Ethernet cable into the Control LAN port at the bottom rear of the chamber.
      Depending on the date manufacture, these ports might be labeled differently. screenshot
      1. The chamber controller and lights are powered via AC cords at the outside bottom rear of the CT840a chamber.
      2. The Chamber Power or DC port is for 12v or other power required by devices inside the chamber. This runs below the turntable.
      3. The Turnable Power or Plate DC port is for a 12v or other power required by the DUT on the turntable. This is run up to the top of the turntable.
      4. Accessories or DUTs can be cabled to the Device USB port, or USB port.
      5. The USB camera has a dedicated USB port, Camera USB or Camera USB port.
      6. Below the turntable is an Ethernet jack for the DUT to use. That comes out at the Turnable Eth or Plate LAN port. It should be run up to the top of the turntable with the 12v power cord.
      7. The chamber controller is accessed on the network via the Chamber Eth or Control LAN port.
    2. Use the front touch screen to set an IP address screenshot
    3. Make sure you can ping the chamber from your laptop and/or the machine running LANforge server. The LANforge server will communicate over the network to the Chamber Eth port.
    4. The rear ports are all accessory ports for the chamber. screenshot
      1. 120v AC cord for internal power strip. screenshot
        1. This power plug provides power to the chamber modbus controller and the chamber lights.
        2. The turn table power cord plugs into the power strip.
      2. Pass-through DC barrel connectors. Use these for 12v (or other) power needed by devices in the chamber.
      3. SMA connectors. Seal these with terminators when not in use.
      4. Ethernet ports
      5. USB 3-A and USB C port
      6. Type F Coax port. Seal this with terminators when not in use.
      7. Fiber-optic pass-through. Seal this with screw-caps when not in use.
      8. HDMI ports

  2. Configuring the Chamber in LANforge

    1. In the Chamber View window, right-click on the main window and select New Chamber screenshot
    2. You will see the Create/Modify Chamber window. screenshot
    3. Select the chamber and turntable type: screenshot
      1. For Chamber Type, select 2D Large
      2. For Turntable Type, select CT840A
      3. For Turntable, put in the IP address of the chamber screenshot
      4. Select your LANforge server resource that manages the turntable screenshot
      5. Click OK
    4. You will see a new chamber, C0 in the Chamber View window. screenshot
    5. In the Chamber View window, right-click on the chamber C0 and select Modify
    6. Use the Speed and Position fields to adjust the turntable.
      screenshot
    7. Click Apply to send the configuration.

    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
    Facebook | LinkedIn | Blog

    Last modified: Wed Jun 11 11:35:01 PDT 2025