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.
Dipole Heaters	Yes

Click to enlarge

GS-420 ILS Glide Slope Antenna GS-420 Certified 328-336 MHz

Frequency Range: 328-336 MHz
Gain: 10 dBi +
VSWR: 1.2:1 max
Polarization: Horizontal

View Product Specs PDF

Request a QuoteAll Inquiries welcome

Description
Spec Sheet

Description

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.

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.
Dipole Heaters	Yes

SKU: GS-420 Categories: Antennas, Aviation, ILS

Related products

DPV-38L UHF Dual Band Antenna 108in Omni 225-400/225-400 Mhz

Antennas, Aviation, DPV Series

Frequency Range: 225-400/225-400 MHz Gain: 0 dBi VSWR: 2.0:1 Polarization: Vertical Pattern: Omnidirectional Size: 108" L 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.

Quick view

DPV-54 UHF Ground to Air Antenna Omni 400-500 Mhz

Antennas, Aviation, DPV Series, Military

Frequency Range: 400-500 MHz Gain: 0 dBi VSWR: 2.0:1 Polarization: Vertical Pattern: Omnidirectional Size: 24" 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.

DPV-37 UHF Single Band Ground to Air Antenna 40.5in Omni 225-400 Mhz

Frequency Range: 225-400 MHz Gain: 0 dBi VSWR: 2.0:1 Polarization: Vertical Pattern: Omnidirectional Size: 40.5" L NSN: 5985-01-050-7521 Model Number: DPV-37 Part Number(s): 1000-0876-202

DPV-55 UHF Dual Band Antenna Omni 400-500/400-500 MHz

Frequency Range: 400-500/400-500 MHz Gain: 0 dBi VSWR: 2.0:1 Polarization: Vertical Pattern: Omnidirectional Size: 60" L

DPV-51 UHF High Gain Single Band Antenna 77.5in Omni 225-400 Mhz

Frequency Range: 225-400 MHz Gain: 4 dBi VSWR: 2.0:1 Polarization: Vertical Pattern: Omnidirectional Size: 77.5" L NSN: 5985-01-506-7124 Model Number: DPV-51 Part Number(s): 1000-1122-201, 1000-1122-202, 1000-1122-203

Request Quote All Inquiries welcome.

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.

GS-420 ILS Glide Slope Antenna GS-420 Certified 328-336 MHz

Spec Sheet

DPV-38L UHF Dual Band Antenna 108in Omni 225-400/225-400 Mhz

DPV-54 UHF Ground to Air Antenna Omni 400-500 Mhz

DPV-37 UHF Single Band Ground to Air Antenna 40.5in Omni 225-400 Mhz

DPV-55 UHF Dual Band Antenna Omni 400-500/400-500 MHz

DPV-51 UHF High Gain Single Band Antenna 77.5in Omni 225-400 Mhz

DPV-60 UHF Triple Band Antenna Omni 225-400/225-400/225-400 MHz

DPV-68 VHF/UHF Multi Band Antenna Omni 116-150/116-150/225-400 MHz

DPV-71 VHF Dual Band Antenna Omni 145-175/145-175 MHz

Antenna Products Corporation will always strive to exceed our customer’s expectations, by continuously focusing on improving the quality of our products and the services we provide. To succeed, Antenna Products Corporation will: