LoRa Alliance® Authorized Test House

Since November 2015 IMST is a LoRa Alliance Authorized Test House. The certification was given by the LoRa Alliance. Tests are derived from LoRaWAN® specification and are covered currently for Class A (Class B will be covered m/o 2019, class C from e/o 2019).

The following tests are covered today:
  • Activation OTA / by personalization
  • Application functionality test
  • Downlink Packet Error Rate tests (allowed 5% PER)
  • Cryptography tests
  • Receive Window test (1st and 2nd)
  • Handling of sequence number
  • Device Status Request test
  • Add/Modify channel tests
  • Confirmed/Unconfirmed uplink/downlink test
  • Modify and verify of setting downlink parameters
  • Modify and verify downlink timing parameters
  • Data rate adaptation tests (incl. Optional DRs)
  • Transmit Power control tests
  • Confirmed / unconfirmed frames tests
  • Retransmission of confirmed  frames

Additional (optional) tests could be:
  • Disable non-default uplink channels
  • Downlink RF Timing Test
  • Downlink Frame Pending feature
  • Link Check Request test
  • Simple tests for MAC commands
  • Check uplink frequencies
Since m/o September also Radiation Performance testing can be offered.

The report that IMST provides as the output from LoRaWAN Radiation Performance measurement gives antenna diagrams showing the minimum and maximum values for the TRP (Total Radiated Power) and TIS (Total Isotropic Sensitivity). Based on these figures, a network operator can grade devices and ensure a good and smooth network availability and performance. Within development these measurements would help manufacturer to improve their designs.

The certification process in general is as follows:

LoRaWAN Certification Overview

The LoRaWAN Certification Program provides assurance to end customers that their application-specific end devices will operate on any LoRaWAN network. The scope of the Certification Program confirms that the end device meets the functional requirements of the LoRaWAN protocol specification. The program includes a suite of tests that are specified in the LoRa Alliance End Device Certification Requirements document*.

Device manufacturers must be a member the LoRa Alliance to be LoRa Certified and must use one of the accredited LoRa Certification test houses to do the functional protocol testing. Upon completion of the tests, the results will be listed on the LoRa Alliance website, and upon compliance a LoRa Certification certificate will be issued by the LoRa Alliance.

LoRaWAN Certification Process

  1. Contact a LoRa Alliance authorized test service provider for a quote.
  2. Complete the certification questionnaire* available on the LoRa Alliance website or from the test service provider.
  3. Prepare your product(s) for certification.
    • Must fulfill LoRaWAN Specification V1.0.2 which is available from LoRa Alliance. Older versions are also still covered.
    • Must fulfill LoRa Alliance End Device Certification Requirements* for EU. Specification is available from LoRa Alliance.
  4. Deliver your product to your LoRa Alliance authorized test service provider. It should be ready for Over the Air activation or already personalized.
  5. The LoRa Alliance authorized test service provider will perform the certification tests and provide you and the Alliance with the „pass“ results.
  6. LoRa Alliance will review the test results and create the LoRaWAN certificate
  7. Results and basic product information are released on LoRa Alliance website. Release date can be customized to align with product launch date, if requested. Data from the questionnaire that is not wanted to appear on the website, can be marked as confidential.


Mr. Jens Lerner

Mr. Alexander Rahn

LoRa is a registered trademark of Semtech Corporation / LoRaWAN is a registered trademark of LoRa Alliance