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Instrument Landing System Localizer

The Mercury ILS (Instrument Landing System) series is available in a wide range of configurations, all exceeding the most stringent ICAO Level 4 requirements. Designed to be cost-effective, easy to install and operate, and above all, highly reliable, these systems incorporate the latest state-of-the-art technology.y.

Mercury ILS has been put to be tested under the most demanding environmental conditions, ensuring its operation in any environment.




LLZ Specification
System Specification
Type Dual Frequency (Fc ± 4 KHz) or Single Frequency           
Frequency Range 108 MHz to 112 MHz with 50KHz channel spacing
Carrier Frequency Stability ±0.0001%, 55Hz@110MHz
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 hour or longer
Transmitter Specification
CSB Output Power Typically 16 Watt (+42 dBm)
Adjustable 37dBm to 44dBm
CSB/SBO Power Stability ±0.2dB
Harmonics / Spurious 1 uW / 10 uW
Total Harmonic Distortion less than 1%
CSB/SBO Phase Adjustment ±180 degree
Identification Modulation Freq. 1020±1Hz
Modulation Depth: 0% ~ 15%
Modulation Frequency 90Hz±0.1%, 150Hz±0.1%                                   
Modulation Depth 40% (0%~50%)
SDM Stability ±0.3%
DDM Stability ±0.1%
Monitor Specification
Input RF Integral, Near Field, Farfield
Input Level - 10 ~ - 40 dBm
Monitor Stability RF Power Value ±0.3dB
DDM ±0.1%
SDM ±1%
Alarm Limit Programmable                                  
LLZ Antenna Specification
Frequency Range 108MHz to 112MHz                                    
Number of Element 8/14/20/24
Element Type LPDA
Polarization Horizental
Gain 10dB
Front to Back Ratio Typically 26dB