R&S TS6300 Software para Sistemas ILS

Descripción

R&S TS6300 ILS/VOR Software

 

Brief Description

The R&S®TS6300 is a modular ILS test system intended to perform ILS ground measurements at airports with CAT I – III runways. ICAO standards (ICAO Annex 10 and Doc. 8071) require that ILS ground measurements be performed at regular intervals. These measurements provide test engineers working at air-traffic control (ATC) authorities with important information that can be used to perform preventive as well as corrective maintenance of transmitting systems.

The R&S®EVS300 ILS/VOR analyzer lies at the heart of the R&S®TS6300. This analyzer offers outstanding performance, which makes it ideal for carrying out dynamic measurements. In particular, the very high measurement rate of 100 Hz (100 complete data records per second, each containing more than 50 different values) makes it possible to separately determine and analyze Course and Clearance in a single measurement. Integration and allocation of the GPS data to each measured data record opens up previously unimagined possibilities in the field of signal analysis.

The R&S®ILSChecker software was developed in cooperation with the Swiss SKYGUIDE organization. The software is used to control the R&S®EVS300 and is based on an elaborate concept that stems from real-world practice (Swiss Air Navigation Services). The software has been thoroughly tested by SKYGUIDE and fulfills all the requirements of the ICAO standards.

 

Key Facts

  • Highly precise measurements, delivering 100 data records per second (with GPS stamp) independent of weather influences
  • Full support of all required Localizer and Glide Path measurements
  • The R&S®ILSChecker software filters the DDM data of the Course Structure measurements as required by the ICAO Annex 10 specifications
  • Significant cost savings through simple "one-man" operation, and reduction of test flights for antenna alignment
  • Actual changes in the ILS signal are easy to verify due to the very high measurement reproducibility
  • Reproducibility and high accuracy enable good correlation between measurements on the ground and in the air
  • Comprehensive analysis capabilities in the test vehicle or subsequently in the lab using the R&S®ILSChecker software

 

Features & Benefits

 

·         Configurable, mobile automatic test solution for ILS ground measurements

  • R&S®EVS300 as test instrument for highly precise level and modulation measurements
  • R&S®ILSChecker software for data acquisition, visualization and analysis
  • Antennas for ILS and VOR measurements (LOC – R&S®HF108, LOC/GS – R&S®EVS-Z3) and for GPS
  • Modular system configuration – from laptop to test vehicle

·         Fast and highly precise execution of all ICAO-stipulated measurements

  • Localizer Course Structure
  • Localizer Coverage
  • Localizer Linearity Coverage
  • Glide Path Coverage
  • Glide Path End-Fire Transverse Structure

 

·         Reliability and efficiency for regular ILS system verifications

  • Very high reproducibility of measurements
  • Simple verification and traceability of changes in the ILS signal
  • Detailed measurement analysis in the lab
  • Cost savings through simple "one-man" operation

 

 

Specifications

Frequency

 

Frequency range

 

70 MHz to 350 MHz

Preselection filter ranges

marker beacon

74.7 MHz to 75.3 MHz

 

ILS LLZ

108 MHz to 112 MHz

 

ILS GS

320 MHz to 340 MHz

 

VOR

108 MHz to 118 MHz

Frequency resolution

 

100 Hz

Temperature drift

–10 °C to +55 °C

1 ppm

Aging per year

after 30 days of uninterrupted operation

1 ppm

Level

 

Absolute level

   

Maximum input power

 

+13 dBm

Display ranges 1)

Low Noise mode (preamplifier ON)

–120 dBm to –20 dBm

 

Normal mode (preamplifier OFF)

–110 dBm to –10 dBm

 

Low Distortion mode 
(RF attenuator ON)

–100 dBm to +20 dBm

 

Autorange mode

–120 dBm to +20 dBm

Level resolution

 

0.1 dB

Accuracy

at –30 dBm

< 0.8 dB

Linearity error

in range from –70 dBm to 0 dBm

< 0.5 dB

Inherent noise

Low Noise mode

< –115 dBm

Spurious response, inherent

without input signal, Low Noise mode

< –90 dBm

Intermodulation

   

Third-order intercept point (TOI)

2 × 10 dBm, Δf > 200 kHz, 
Low Distortion mode

> 20 dBm

 

ILS signal analysis

 

R&S®EVS300 in Single measurement mode. At an input level > –70 dBm, specifications apply even with a measurement time as short as 10 ms.

Input level range

 

–80 dBm to +10 dBm

Modulation depth (0 % to 95 %)

   

Resolution

 

0.01 %

Accuracy

90 Hz/150 Hz ± 2.5% 2)

≤ 0.5 %

Accuracy

voice/identifier

≤ 1.0 %

AF

   

Accuracy

90 Hz/150 Hz ± 5% 2)

≤ 0.05 Hz

Accuracy

1020 Hz ± 50 Hz 2)

≤ 5.0 Hz

Phase angle 90 Hz/150 Hz

   

Measurement range

 

0° to +120° or ± 60°

Resolution

 

0.1°

Accuracy

 

≤ 0.2°

DDM measurement, 
Localizer mode

   

Accuracy

≤ ±10 % DDM

≤ 0.04 % DDM ± 0.1 % of reading

Accuracy

> ±10 % DDM

≤ 0.04 % DDM ± 0.2 % of reading

DDM measurement, Glide Slope mode

   

Accuracy

≤ ±20 % DDM

≤ 0.08 % DDM ± 0.1 % of reading

Accuracy

> ±20 % DDM

≤ 0.08 % DDM ± 0.2 % of reading

ILS demodulation filters (for DDM and SDM calculation)

 

Measurement modes

Single

CRS+CLR

CRS

CLR

CRS|CLR

Δf1

Filter flatness (ripple < 0.1 dB)

12.4 kHz

32.0 kHz

12.4 kHz

12.4 kHz

12.4 kHz

Δf2

–3 dB bandwidth

14.8 kHz

34.9 kHz

14.8 kHz

14.8 kHz

14.8 kHz

Δf3

–60 dB stopband attenuation

18.8 kHz

39.1 kHz

18.8 kHz

18.8 kHz

18.8 kHz

                 

1) Overload display if in-band or out-of-band signals are overloading.

2) Max. frequency drift of modulation signal.