CH250-13 TETRA Dual Head Controller

TETRA Single And Dual Head Controllers

About the product

The CH250-13 TETRA Dual Head Controller is a Control and Display Unit (CDU) which provides the user interface for Chelton airborne TETRA radio sub-systems. The CH250-13 controls two 7-450-14 or 7-450-15 TETRA transceivers, and is specifically designed for airborne use.

  • DZUS Mounting
  • NVIS Compatible
  • Large Display Screen with Automatic Dimming
  • Keypad Suitable for the Gloved User
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Main functions of the RH150-13 TETRA Remote Control Head

The design of the MMJ, display and controls benefits from Chelton's extensive experience of fielding TETRA radios for airborne use, which, because of the unique nature of TETRA networks, is significantly more challenging than operating standard tactical radios.

The CDUs display the operating mode and status of the associated radios using a colour screen, with a viewable area of approximately 272 pixels x 204 pixels (48 mm x 67 mm).

The CDUs feature user-upgradeable embedded firmware, which controls the display of text, graphics and icons.

The CDU is compatible with the RH150-13 remote/slave CDUs. The RH150-13 provides an additional control position for larger aircraft.

COB I02 Eurocopter 135 Police HR
DAA Using Chelton TETRA 3

The Display

The CDUs are Night Vision Imaging System (NVIS) compliant and may be integrated into NVIS Green B Class A and B cockpits. Light emitted from the displays is LED white. Maximum NVIS radiance is within the MIL-STD-3009 published limits for ‘multi-colour’ electro-optical displays.

For night operation, the keys are backlit with LEDs, the intensity of which is controlled by the aircraft’s bus rail. The key backlighting complies with NVIS Green A.


  • Electrical Specs
  • Mechanical Specs
  • Standard Specs

Electrical Specs

Operating Voltage
28 V dc nominal (16 to 32 V)
Input Current
700 mA (max)
Multi-pin Type MS3114E-16-26P, Male 4-pin Type EGG.00.304.CLL, Female

Mechanical Specs

Dimensions (mm)
77 x 147 x 154
Weight (kg)
Display Active Area
272 pixels x 204 pixels (48 mm x 67 mm)

Standard Specs

Operational Temp
-40°C to +55°C
EUROCAE ED-14E/RTCA DO-160E, Section 8
14043 (2)

Get in touch

Chelton Limited, Marlow HQ
The Chelton Centre
Fourth Avenue
United Kingdom
CAGE Code: U1907
Contact us to discuss your requirements!
Speak to our Sales or Engineering teams

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