Avionics Test Equipment

Avionics equipment bay of an Airbus A319 with rack-mounted LRUs — Photo: Dreznicek009 · Wikimedia Commons · CC BY-SA 4.0 (resized)

Avionics test equipment is the ramp and bench instrumentation that airline, MRO and business-aviation technicians use to confirm that an aircraft's communication, navigation and surveillance radios behave correctly after installation, repair or a scheduled inspection. Typical flight-line sets stimulate and measure transponder (Mode A/C/S), ADS-B, TCAS, DME/TACAN, VOR, ILS and VHF/HF communication equipment without removing it from the aircraft. Novatelia sources selected avionics test sets on an RFQ basis for maintenance organisations in Oman, with project-by-project supply to other GCC countries.

Applications

Return-to-service checks after avionics line-replaceable unit (LRU) replacement.
Periodic transponder and altitude-reporting tests required by the operator's maintenance programme (in the US, 14 CFR 91.413 sets a 24-calendar-month interval) ^[1].
ADS-B Out message verification and TCAS functional tests on the ramp ^[2].
Antenna feeder VSWR and distance-to-fault checks on RF cabling ^[2].

Equipment types

Multi-function flight-line test sets covering surveillance, navigation and communications in one instrument (example: VIAVI AVX-10K) ^[3].
Dedicated pitot-static / air-data test sets — see Pitot-Static & Air Data Test Equipment.
Transponder and ADS-B specific testers — see ADS-B & Transponder Test Equipment.

Technologies and maintenance tasks

Surveillance: ATCRBS/Mode S interrogation, GICB register reads, ADS-B 1090ES and 978 MHz UAT ^[2].
Navigation: ILS localizer/glideslope/marker beacon, VOR (108.00–117.95 MHz) and DME (962–1213 MHz reply band) simulation ^[2]^[4].
Communications: AM, FM, SSB and SELCAL tone checks ^[2].

How to select equipment

Map the aircraft fleet's installed avionics (Mode S level, ADS-B version, TCAS I/II) to the test functions you need.
Check which test procedures the set automates — e.g. FAR Part 43 transponder tests and AC 20-165 / CS-ACNS ADS-B test types on the AVX-10K ^[2].
Confirm the required test distance and antenna kit for over-the-air testing ^[4].
Plan calibration turnaround time before purchase; ask the OEM for its recommended interval.

Calibration and traceability

Ramp test sets are measuring instruments: the maintenance organisation's procedures should require a valid calibration certificate traceable to national standards before the set is used for return-to-service tests.
Calibration is arranged through the manufacturer or a laboratory the customer approves.

Customer types

Airline line-maintenance stations
Part-145-style MRO organisations and avionics shops
Business and general aviation operators
Aviation training organisations

Relevant standards and guidance

FAA AC 43-6D – altitude reporting equipment and transponder maintenance practices ^[5].
14 CFR 91.411 and 91.413 (US) – altimeter/altitude reporting and transponder inspection rules ^[6]^[1].
Operators in Oman and the GCC follow their national authority's requirements; confirm the applicable rule with your quality department.

Brands

VIAVI Solutions
VIAVI Solutions makes avionics flight-line test sets used by airline, MRO and military maintenance teams to test transponder, ADS-B, TCAS, DME/TACAN, VOR/ILS and communication systems; its current multi-function set is…
Avionics Test EquipmentADS-B & Transponder Test EquipmentTCAS / DME / VOR / ILS Test EquipmentAircraft Communication & Navigation Testing
Laversab
Laversab Inc. manufactures automated pitot-static (air data) test sets for leak and accuracy checks of altimeters, airspeed indicators, VSIs and air data computers, including the two-channel RVSM Model 6300…
Pitot-Static & Air Data Test EquipmentAvionics Test EquipmentCalibration & Metrology
TestVonics (Raptor Scientific)
TestVonics makes air data test equipment and was acquired by Raptor Scientific in March 2021. The range covers ADC air data calibrators, ADTS flightline pitot-static test sets and ADCTS lab systems…
Pitot-Static & Air Data Test EquipmentAvionics Test EquipmentCalibration & Metrology
Keysight
Keysight makes electronic test and measurement equipment and software, with a dedicated aerospace and defense offer . For avionics it describes automated power input pre-compliance testing to RTCA DO-160 Section 16 and…
Avionics Test EquipmentAircraft Electrical & EWIS Testing
Tektronix
Tektronix makes oscilloscopes and test instruments. Its SRAERO option adds MIL-STD-1553 and ARINC 429 triggering, decoding and search to 3 Series MDO and 4/5/6 Series MSO oscilloscopes …
Aircraft Network & Data Bus TestingARINC 429 Test EquipmentAvionics Test Equipment
Yokogawa
Yokogawa Test & Measurement makes precision power analyzers. It describes their use for aircraft electrical power testing to RTCA DO-160, covering 400 Hz constant-frequency and variable-frequency systems…
Aircraft Electrical & EWIS TestingAvionics Test Equipment

Products

VIAVI SolutionsAvionics Test EquipmentRFQ
VIAVI AVX-10K Flight Line Test Set
Model: AVX-10K
- Transponder Auto tests incl. FAR Part 43
- ADS-B Auto tests per AC 20-165 and CS-ACNS
- Up to five static 1090 MHz ADS-B/ADS-R/TIS-B targets
- TCAS I/II, TAS, E-TCAS intruder scenarios
Status: Request a quote · calibration certificate on request
LaversabPitot-Static & Air Data Test EquipmentRFQ
Laversab Model 6300 RVSM Pitot-Static Tester
Model: 6300
- Automatic ramping to altitude/airspeed set-points, stable within ±1 ft and ±0.1 kt
- 15 stored profiles × 50 set-points
- Independent or simultaneous pitot/static leak checks with three timers
- Programmable limits and negative-airspeed protection
Status: Request a quote · calibration certificate on request

Oman & GCC support

For avionics test equipment, Novatelia handles sourcing, quotation and delivery coordination from Muscat for Oman customers and on a project basis for other GCC countries; see Aviation supply in Oman. Novatelia does not claim local OEM service centres or civil aviation authority approvals.

Related aviation categories

Related guides

Avionics Test Equipment Guide

Frequently asked technical questions

What equipment is required for aircraft avionics testing?

At minimum a flight-line communication/navigation/surveillance test set, a pitot-static test set for air-data instruments and altitude reporting, and RF cable/antenna test capability. Multi-function sets such as the VIAVI AVX-10K combine transponder, ADS-B, TCAS, DME, VOR/ILS, comms and VSWR tests ^[2].

How often does a transponder have to be tested?

Under US rules (14 CFR 91.413) ATC transponders must be tested and inspected within the preceding 24 calendar months; your national authority and the approved maintenance programme govern operators in Oman and the GCC ^[1].

Can one test set cover ADS-B and TCAS?

Yes, some do. The AVX-10K data covers ADS-B Out, ADS-B In target generation (up to five static 1090 MHz targets) and TCAS I/II/TAS intruder scenarios ^[2].

Does Novatelia calibrate avionics test equipment?

Novatelia supplies equipment by RFQ; calibration is arranged through the manufacturer or a laboratory acceptable to your quality system. Ask in your RFQ which calibration certificate ships with the unit.

Does Novatelia supply avionics test equipment in Oman?

Yes, selected equipment is sourced on request for Oman-based customers, subject to manufacturer channel rules, export conditions and availability.

Request a quote

Send part numbers, quantities, delivery location and any calibration or documentation requirements for avionics test equipment. Quotes depend on manufacturer channel rules, export conditions and availability.

Add to RFQ – contact Novatelia or email [email protected]

Trust information. Last reviewed: 2026-10-30 · Revision date: 2026-10-30 · Technical category: Avionics Test Equipment · Manufacturer: VIAVI Solutions, Laversab, TestVonics (Raptor Scientific), Keysight, Tektronix, Yokogawa · Source documentation: 6 public sources listed below · Standards referenced: FAA AC 43-6D – altitude reporting equipment and transponder maintenance practices · Brand references do not imply authorization, distributorship or OEM/authority approval.