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ILS GP(Glide Path)

Hename designed the GP with the customers' requirements in mind, conducting interviews with numerous ILS maintenance experts. One of our primary goals in the system design was to significantly reduce both the complexity and the time required by field engineers for maintenance tasks. Additionally, our careful and thorough preparation in the factory ensures the production of fault-free equipment..

Recognizing the need for sustainable equipment that operates effectively in harsh environments, we incorporated comprehensive temperature compensation circuits into our systems. Whether at a highly populated airport or a less populated one, our GP is designed to meet all demands. Upgrading from CAT I to CAT II and CAT III is seamless; every unit we release from our factory is CAT III ready, ensuring support for long-term growth and success.

Thanks to meticulous attention to temperature compensation, the Mercury ILS can immediately stabilize all critical parameters upon the power-on of the transmitter. This feature is especially valuable for airports utilizing a cold standby configuration of the ILS.


GP Specification
System Specification
Type Dual Frequency (Fc ± 8 KHz) or Single Frequency               
Frequency Range 328.6 MHz to 335.4 MHz 150KHz spacing
Carrier Frequency Stability ±0.0001%, 166Hz@332MHz
Operation Temperature -10˚C to +55˚C
Relative Humidity 0 ~ 90%
Primary Power 110 V to 230V
47 to 63Hz
System and Standby Power +24 V DC
Battery Backup 4 hours or longer
Transmitter Specification
CSB Output Power Typically 5 Watt (+37 dBm)
Adjustable 32dBm to 40dBm
CLR Output Power Typically 0.5 Watt (+27 dBm)
Adjustable 24dBm to 34dBm
CSB/SBO Power Stability ±0.2dB
Harmonics / Spurious 1uW / 10 uW
Total Harmonic Distortion less than 1%
CSB/SBO Phase Adjustment ±180 degree
Modulation Frequency 90Hz±0.1%, 150Hz±0.1%                                       
Modulation Depth 80% (0%~90%)
SDM Stability ±0.8%
DDM Stability ±0.2%
Monitor Specification
Input RF Integral, Near Field
Input Level - 10 ~ - 40 dBm
Monitor Stability RF Power Value ±0.3dB
DDM ±0.1%
SDM ±1%
Alarm Limit Programmable