and related technical catalogs provide these installation requirements: : The antenna is typically installed on the belly of the aircraft and must be mounted rigidly in line with the airframe. Environmental Durability : It is certified to RTCA DO-160C standards, meaning it can operate at altitudes up to 25,000 feet
Better than 5° rms (highly dependent on correct installation)
Before planning the airframe integration, review the mechanical and electrical foundations of the Chelton Type 935 Series system:
: High-speed slipstreams exert significant aerodynamic loads on the antenna shell. Cut the fuselage skin according to the footprint in the Chelton Type 935 Series Datasheet and add an internal doubler plate to reinforce the airframe.
: The standard configuration measures 286 mm x 286 mm x 90 mm . Mass : Weighs approximately 3.8 kg . chelton df 935 2 pdf install
: Run nearby communications gear to confirm the DF 935 remains unaffected by local electromagnetic interference.
To proceed with your integration, do you need the for the RS-422 connector, or Share public link
: Testing to confirm that current draw remains within the 1.6 A maximum specification.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. 935 Series Tactical DF Antenna | Chelton : The standard configuration measures 286 mm x
: Ensure a low-resistance electrical bond exists between the unit’s base plate and the airframe metal. Poor grounding compromises the DEF-STAN 59-41 EMC rating, injecting unwanted electrical noise into the tracking receivers. 5. Post-Installation Testing and Calibration
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.
The wiring harness must be pinned out to match one of the system’s supported data-bus architectures:
: Selectable SAR and CSAR modes, allowing for covert rescue operations when used with specific interrogators. To proceed with your integration, do you need
To reduce aerodynamic drag and protect the unit, utilize low-profile plinths provided by Chelton. These custom mounts keep the antenna’s protrusion low while maintaining adequate ground clearance and performance at low altitudes. Environmental Sealing
The electrical integration of the DF-935-2 is a complex but straightforward process if the official pinout diagram and wiring diagrams are followed.
The system utilizes high-specification connectors, such as the MS3114-16-26P, to interface with the aircraft's 28 V d.c. power bus. To ensure compliance with EMC standards and prevent electromagnetic interference, the use of shielded, twisted-pair wiring is a standard requirement for all data and power feeds. System Communication