Trans-Cal Altitude Data Simulator

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Part# 11-13199
MFR Model# ADS-100


The Model ADS-100 is an all solid-state device that simulates the output of altitude encoders/digitizers in both parallel and serial (RS232) data formats. Designed to substitute for an altitude encoder when testing and troubleshooting an aircraft’s altitude reporting system, the ADS-100 provides two RS-232 compliant outputs in addition to the ICAO pressure altitude code. The Model ADS-100 provides a simple and robust means of simulating serial and parallel altitude data inputs for multiple aircraft systems.

The bright two-line vacuum fluorescent display gives the test technician a view of the current altitude code transmission on both the serial and parallel ports. LED indicators display the status of the encoder strobe, power and serial data protocol pins, as well as the binary ICAO altitude code. Audible alerts are generated at 1000’ or 100’ altitude code transition points. Front panel switches control the device power, altitude hold, ascent/descent rate, audible signals and serial data protocol.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov


  • A fan-out of two RS232 serial altitude output ports
  • One standard ICAO pressure altitude output port.
  • RS-232 ports may be user configured to transmit one of six standard serial altitude messages.
  • Climb/descent rate is selectable, 6000’/min. or 30,000’/min.
  • Audible alert, user selectable at 100’ or 1000’ increments
  • LED indicators of active ICAO code bits, power, strobe and protocol
  • Bright 24 character 2-line vacuum fluorescent display
  • Internal 9V battery power providing up to 2 hours of operation
  • Industry standard D-Subminiature connectors
  • Operating temperature range: -20° to +70°C
  • Weight: 1.26 lb.
  • Measures 7.5" x 4.0" x 1.5" without protective boot
  • Measures 8.8" x 4.6" x 1.8" with protective boot



Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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