Product Overview: Chelton DF 935
Specification. Electrical Specs Mechanical Specs Standard Specs. 30 Minimum Frequency. 470 Maximum Frequency. 16.0 to 31.5 V d.c., Chelton 935 Series Tactical DF Antenna | Chelton
- Reconnect the power supply and turn on the DF 935 2.
- Use the on-screen menu to calibrate the transducer depth and adjust sensitivity settings.
- Test the unit in water by launching the vessel and verifying depth readings against a known reference.
- "2": Often refers to a dual-port or dual-polarization configuration, allowing the antenna to process signals in both vertical and horizontal planes, or it may denote a specific connector type (e.g., dual BNC or TNC interfaces).
- "PDF": In radio frequency (RF) engineering, this often stands for Pulse Density Function or Probability of Detection Function, metrics used to grade the accuracy of the direction finding capability.
Core System Capabilities
Below is a guide to the key installation requirements and system features for the 935 Series.
3. Electrical Wiring & "2 PDF" Configuration
- [ ] All four antenna VSWR < 2.0:1?
- [ ] Channel 1 & 2 phase cables matched within 1°?
- [ ] Software set to "Dual" mode?
- [ ] ARINC 429 output labels confirmed with avionics manufacturer?
- [ ] Ground calibration performed with no moving metal nearby?
