STE6300 Ramsey Shield Box

The STE6300 RF Shield Box is a blank enclosure ready to be customized to match your specific RF testing requirements. CTS is available to assist you to make sure your custom enclosure is designed to meet your unique RF testing requirements. This enclosure does incorporate a 120mm passive ventilation system with optional 12 volt DC, 115 VAC, or 230VAC fans available. As with all of our enclosures, your custom I/O configuration is brought out to a precision machined I/O panel, giving you off the shelf delivery of your custom order.

Compliment the STE6300 RF Shield Box with the perfect Antenna Coupler for your radiated testing.

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SKU: STE6300 Categories: , ,


STE6300 Ramsey RF Shield Box

Key Benefits

  • Designed for a wide variety of RF testing, function/s determined by user  customization.
  • Perfect for 802.11a, b, g, n, ac, and ax
  • Wireless device testing
  • Bluetooth, RFID, 3G, 4G, 5G testing
  • Totally customizable with a wide variety of I/O options available

Pair the Ramsey STE6300 RF Shield Box with a custom fixture for your DUT to ensure test repeatability. This Faraday cage can accommodate medium to large size DUTs and can be used as a top opening shield box or lay it down on it’s side and use it as a front opening RF Shield Box.


Additional information

Weight 61.2 kg
Dimensions 22.3 × 34.3 × 18.6 in


Internal Depth

20in and greater

Internal Height


Internal Width

18in and greater




  • Designed for WLAN testing
  • Front loading swing away door
  • Dual ventilation standard or fan forced cooling optional.
  • Exclusive double lip RF tight gasket
  • Universal I/O connector interface plate
  • Insertion Loss RF absorbent foam liner Standard
  • Reflection Loss solutions available
  • Optional security locking latch available

Isolation, may vary depending on I/O or options selected in final configuration

  • >95dB  To 3GHz
  • >90dB  To 6GHz

IO Configurations

Custom Configuration Options

  • FIBER OPTIC: Fiber optic bulkhead feedthrough, ST, FC
  • DUST COVERS: Dust cover capes with security chains available for all RF feedthrough connectors
  • RF FILTERED DATA: DB9 (10pF), DB9 (100pF), DB9 (1000pF), DB15 (100pF), DB15 (1000pF), DB25 (310pF), DB25 (1000pF), DB37 (310pF), DB37 (1000pF), RJ45/DB9 Filtered, RJ11/DB9 Filtered, USB1/DB9 Filtered
  • POWER CONNECTIONS: 4-Pole filtered barrier strip feed through, 6-Pole filtered barrier strip feed through, internal surge protected power strips (110VAC, 220VAC International)
  • VENTILATION OPTIONS: Dual side mounted RF filtered vents with single filtered exhaust muffin fan, passive vent only
  • RF ABSORBENT FOAM: Standard 1/2″ thick RF absorbent foram liner provides 24dB attenuation. 3/4″ thick foam is standard on the STE3800 and available as an option to provide a flatter response
  • FIBER TRANSCEIVER: Icron Technologies USB 2.0 Fiber Transceiver System available for devices up to 480 MB/s

Note: RF Isolation specs are measured at 1M with terminated RF feedthrough coaxial connectors installed. Actual isolation & attenuation can be affected by adding additional filtered and non-filtered connectors. Check with us for specific connector specifications. STE series I/O interfaces, connectors, and options are frequently updated. Check with us for updates.

I/O InterfaceOrder NumberTypical Data Rate/Line VoltageTypical Shielding*

DB37, 1000pF pi Filter
3409-0012-13 Mbps / 100 VDC,
5 Amps max
>70 dB from 0.5 to 2 GHz
>80 dB from 2 to 3 GHz
>70 dB from 3 to 6 GHz

DB25, 1000pF pi Filter
3409-0009-13 Mbps / 100 VDC,
5 Amps max
>70 dB from 0.5 to 2 GHz
>80 dB from 2 to 3 GHz
>70 dB from 3 to 6 GHz

DB25, 100pF pi Filter
3409-0014-110 Mbps / 100 VDC,
5 Amps max
>50 dB from 0.5 to 2 GHz
>60 dB from 2 to 3 GHz
>60 dB from 3 to 6 GHz

DB9, 1000pF pi Filter
3409-0008-13 Mbps / 100 VDC,
5 Amps max
>70 dB from 0.5 to 2 GHz
>80 dB from 2 to 3 GHz
>70 dB from 3 to 6 GHz

DB9, 100pF pi Filter
3409-0010-110 Mbps / 100 VDC,
5 Amps max
>50 dB from 0.5 to 2 GHz
>60 dB from 2 to 3 GHz
>60 dB from 3 to 6 GHz
Max Current: 2A
>80 dB from 741MHz to 6 GHz
STEETHD10G10 Gbps>80dB 100MHz to 40GHz
STEUSB3CCMax Current 3.75A>90 DB 200MHz to 8 GHz
STEUSB312Max Current: 2A>90 DB 200MHz to 8 GHz
STEGBE45911 GBps>90 DB 700MHz to 8 GHz
IEC25010C250 VAC 10A>80 dB at 200 MHz to 30 GHz
STEDC2010100 VDC 10A, 48VAC, 10 A>90 dB 1GHz to 3 GHz