ILS Marker Antenna - 17-4D/1
The 17-4D is intended for airborne reception of ILS Marker signals at 75 MHz. When mounted on the underside of the aircraft, the antenna has maximum response to horizontally polarised signals within a cone having approximately + 45° boundaries. The operating bandwidth for the single frequency reception is sufficient to retain effective function within the degree of de-tuning to be expected from environmental variations.
Specifications
- Electrical Specs
- Mechanical Specs
- Standard Specs
Electrical Specs
- Minimum Frequency
- 75
- Maximum Frequency
- 75
- Impedence
- 50
- Return Loss VSWR
- < 1.5:1 - 75 MHz
- Gain
- Not less than 16 dB below that of a half wave dipole at 75 MHz within a cone + 10° perpendicular to the antenna aperture when measured on a 6' circular ground plane (nominal)
- Polarization
- Horizontal
- Radiation Pattern Azimuth
- Radiation Pattern Elevation
- Peak Power Watts
- Average Power Watts
Mechanical Specs
- Full Dimensions LxWxH mm
- Height Above Base Plate mm
- Mass kg
- 0.95
- Connector Type
- TNC Female
Standard Specs
- Altitude ft
- 50000
- Continuous Operating Temperature Min - C
- 54
- Continuous Operating Temperature Max C
- 90
- Vibration
- Lightning
- Standards
Get in touch
Chelton Limited, Marlow HQ
The Chelton Centre
Fourth Avenue
Marlow
Buckinghamshire
SL7 1TF
United Kingdom
CAGE Code: U1907
Fourth Avenue
Marlow
Buckinghamshire
SL7 1TF
United Kingdom
CAGE Code: U1907