Installing the Chelton 935‑2 Direction Finder requires meticulous planning, adherence to physical and electrical specifications, and thorough post‑installation testing. By following the steps and guidelines outlined in this article—and by referring to the official product data and contacting Chelton for specific documentation—you can ensure that the DF system will provide reliable, accurate bearings and contribute effectively to search and rescue missions.
Features an integral synthesized receiver covering 30 MHz to 470 MHz .
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The DF-935-2 is a 3-ATI short unit. The PDF will detail:
: The corresponding control panel or Control Display Unit (CDU) is typically installed in the center console of the cockpit. Dimensions & Clearance : Antenna Diameter : 286 mm. Antenna Height (External) : 90 mm. Internal Penetration : 75 mm. chelton df 935 2 pdf install
The system is typically controlled via a Chelton CDU (e.g., 715‑40 or 718‑40) which provides controls to:
Once you secure the PDF (typically 50-80 pages long), pay special attention to these four chapters. Skipping any of them is the primary cause of installation failures. Which would you prefer
Page 3. Mounting. Attitude. In line with airframe, normal or inverted. Mounting. Method. Rigid. Temperature. Altitude. EUROCAE ED- 935 SERIES - Chelton
Ensure the installation area can accommodate the unit’s dimensions (286mm x 286mm x 90mm) and weight (3.8 kg). The primary power supply must be 16.0 to 31.5 V d.c., with a maximum current draw of 1.6 A. Dimensions & Clearance : Antenna Diameter : 286 mm
The DF-935-2 is a critical component of the aircraft's avionics suite. Therefore, its installation must be performed by an authorized and qualified avionics technician. The process typically involves: