21-48L

VOR/LOC/GS loop antenna

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21 48L

VOR/LOC/GS loop antenna - 21-48L

The 21-48L is an airborne antenna system intended for VOR/ILS and glideslope applications. Each antenna system comprises two centrally fed half loop (21-48L-1()) antennas, that when mounted on the aircraft must be fed in antiphase for correct function. Each half loop is formed from stainless steel tubing with a fibreglass dielectric junction at its mid-point. From the mid-point a co-axial cable extends internally and exits through the mounting flange. The half loops are connected together via a T adaptor.

  • Lightweight

Specifications

  • Electrical Specs
  • Mechanical Specs
  • Standard Specs

Electrical Specs

Minimum Frequency
108
Maximum Frequency
336
Impedence
50
Return Loss VSWR
<5.0:1
Gain
Polarization
Horizontal
Radiation Pattern Azimuth
Omnidirectional
Radiation Pattern Elevation
Peak Power Watts
Average Power Watts

Mechanical Specs

Full Dimensions LxWxH mm
300 x 46 x 150
Height Above Base Plate mm
Mass kg
0.19
Connector Type
BNC Female

Standard Specs

Altitude ft
25000
Continuous Operating Temperature Min - C
40
Continuous Operating Temperature Max C
55
Vibration
DO-160C, Sect 8, Cat Y
Lightning
Standards
DO-160
14043 (2)

Get in touch

Chelton Limited, Marlow
The Chelton Centre
Fourth Avenue
Marlow
Buckinghamshire
SL7 1TF
United Kingdom
CAGE Code: U1907