The GS-420 glide slope antenna was designed, tested and certified as part of the new generation and more stable ILS-420 system. The GS-420 antenna contains numerous improvements over existing glide slope antennas.
Improvements Include:
• Extremely stable monitor coupling and phase operation over the environment service conditions, as well as during dipole heater operation.
• Improved sealing of the antenna.
• Improved vibration tolerance, in both transportation and installed conditions.
• Improved dipole design.
• Improved solderability.
• More precise tuning and phase matching of cables.
Spec Sheet
Spec Sheet
SPECIFICATIONS
PERFORMANCE
Frequency Range
328-336 MHz
Impedence
50 Ohms
RF Power
50 Watts CW
Monitor Coupling
-6 to -10 db over 328-336 MHz
Polarization
Hoizontal
Cross Polarization
At least -25 dB as measured in front of the antenna and within +/- 25 degrees in azimuth of a vertical plane perpendicular to the reflector and passing through the center of the antenna array
Front-To-Back Ration
More than 16 db
VSWR
1.2:1 Max over 328-336 MHz
Gain
More than 10 dBi
Horizontal Radiation Pattern
Between the upper and lower limit lines as shown in following table
Vertical Radiation Pattern
Symmetrical around 0 degrees elevation and decreasing smoothly in amplitude in either direction from 0 degrees elevation.
Dipole Phase
Left and right dipoles with 20-30 degrees phase of center dipole
Monitor Stability Signal Level
Constant within +/- 0.2 dB over the service condition range; track other antennas within 0.15 dB.
Monitor Amplitude Stability Test
Max change from baseline is +/- 0.075 dB when heaters are energized.
Phase Stability Test
Max change from baseline is +1.1 degrees, -0.4 degrees when heaters are energized.
Frequency Range: 960-1215 MHz
Gain: 8 dBi
VSWR: 2.0:1
Polarization: Vertical
Pattern: Omnidirectional
Size: 74" L
NSN: 5985-01-464-1430
Military Nomenclature: AS-4332
Model Number: DPV-75
Part Number(s): 1000-1404-401
View Product Specs PDF | Request Quote
Not finding what you're looking for? We can custom-build antennas to your exact specifications.
Contact us here or call 1-940-325-3301 for more information.
Frequency Range: 30-50 MHz
Gain: -1.4 dB to + .75 dB (At Horizon)
VSWR: 2.0:1 Max
Polarization: Vertical
Pattern: Omnidirectional
Size: 12' L
View Product Specs PDF | Request Quote
Not finding what you're looking for? We can custom-build antennas to your exact specifications.
Contact us here or call 1-940-325-3301 for more information.