| Item | Part Number Example | Quantity | |------|---------------------|-----------| | Antenna array, DF 935-2 | 935-2-XX (varies by freq) | 1 | | Processor unit | 935-PROC-1 | 1 | | CDU | 935-CDU-2 | 1 | | RF coax cables (phase-matched set) | 935-CBL-4x1M | 4 | | Installation kit (screws, gaskets) | 935-INST-KIT | 1 |
Mounted in the cockpit center console for pilot or crew access.
To perform a legal or certified installation (particularly for aircraft), you require the official **Installation Manual
: Withstands normal operating shocks of 6 g (11 ms half-sine wave) and structural crash safety loads up to 15 g .
Two hours later, the physical install was done. The DF 935-2 was bolted to the airframe’s ground plane, its three antennas (left-right-forward array, the manual explained) aimed precisely at 0°, 120°, and 240° relative to the aircraft’s longitudinal axis. He’d used a laser protractor. The hangar cat, Schrödinger, watched from a tool chest, unimpressed. chelton df 935 2 pdf install
For official installation manuals or technical support, you can contact Chelton Limited directly or refer to the specific supplemental documentation for your aircraft type (e.g., AW139 Supplement No. 32). 935 Series Tactical DF | Chelton
For further assistance, visit Chelton’s official website or contact their customer support.
: Can interface with Personnel Survival Radios (PSR) such as the AN/PRC-112 , PRC-434 , and URX3000 to provide both range and bearing information.
Because the Chelton DF935 is an older legacy unit (often found in retrofit situations), the "installation" process is typically divided into two phases: and Configuration/Calibration . | Item | Part Number Example | Quantity
Route wiring between the belly antenna and the cockpit controller using approved wiring diagrams.
Certified for altitudes up to 25,000 feet and temperatures ranging from -55∘Cnegative 55 raised to the composed with power cap C +90∘Cpositive 90 raised to the composed with power cap C
Proper physical, mechanical, and electrical installation ensures system accuracy (better than
Features an integral synthesized receiver covering 30 MHz to 470 MHz . The DF 935-2 was bolted to the airframe’s
Once opened, you can navigate the PDF using the table of contents, or by scrolling through the document. If the PDF is searchable, you can use the search function (usually Ctrl + F or Command + F on Mac) to find specific information about features of the Chelton DF-935-2.
: The base connector relies on an environmental seal achieving IP68 dust and water resistance to prevent fluid ingress from disrupting RF impedance. Post-Installation Calibration and Testing
Leo’s stomach dropped. Phase disparity meant the three antennas weren’t seeing the same signal with the expected time differences. The PDF’s troubleshooting chapter was a flowchart of dread: check cables → check connectors → check antenna placement → check for reflective surfaces nearby.
The DF 935-2 system acts as an integrated receiver-antenna processor, simplifying RF routing but requiring strict attention to digital bus networks.