Communication qualification
Communication equipment qualification evidence review
This review reads the qualification evidence a communication article rests on, before it is cited in a TSO or STC package. It looks at the DO-160G environmental campaign, the emission and susceptibility results, and the reports behind each pass claim, then checks that declared categories and margins match what the certification argument will lean on. A qualification engineer runs it during evidence assembly, so a thin or over-declared result is caught before it anchors a compliance claim. You receive a product-specific gap list against the qualification plan, a trace map into the certification basis and means of compliance, and a sequence for closing each open result.
When this review is needed
- A radio article's DO-160G campaign is finishing and the reports have to be checked before they feed a certification claim.
- Emission or susceptibility results look tighter than the declared categories imply and need reconciling with the setups.
- A qualification test ran with a fixture deviation and the disposition has to hold up when the evidence is cited.
- The declared power-input and environmental categories have to be confirmed against the campaign before they anchor the argument.
The problem
A communication article's qualification carries emission, susceptibility, power-input, and environmental results that all have to agree with the categories declared for it. Categories get set early and rarely trimmed, an emission test runs at a level the report then rounds off, or a susceptibility margin sits so close to the limit that it demonstrates nothing beyond the exact bench condition. When that evidence anchors a later package, the weakness is inherited, and the campaign is over by the time anyone reads it against the claim.
What gets reviewed
- Radio environmental categories under DO-160G checked against the setups that produced each report
- Emission and susceptibility results verified against the limits and margins the requirements demand
- Power-input test results reconciled to the electrical loads the article declares
- Test deviations and failures on the radio campaign traced to a disposition that survives citation
- The radio qualification plan reconciled to the certification basis and the means of compliance it feeds
- The tested radio configuration confirmed against the part number the evidence will support
Scope this review
Tell us the asset, the event, and the evidence in scope, and we will outline a focused first engagement.
Identify what is missing against the means of compliance.
What gets validated
- Each declared DO-160G category is supported by a report whose setup actually represented that condition
- Emission results stay inside the declared limits with headroom rather than at the exact boundary
- Susceptibility margins hold enough room that the result covers more than the bench condition alone
- Power-input results agree with the electrical loads the article declares for installation
- The radio configuration tested matches the part number the qualification evidence is meant to support
Evidence normally required
- The radio qualification plan with its declared DO-160G category set
- Emission, susceptibility, and power-input test reports with their setup descriptions
- Deviation and failure logs from the radio campaign with their dispositions
- The article's declared electrical loads for reconciliation to the power-input data
- The radio configuration and part-number definition the evidence supports
Common discrepancies
- An emission result recorded right at the declared limit with no margin for installation variation
- A susceptibility category declared broader than the campaign's setups actually covered
- Power-input results that disagree with the electrical loads the article declares elsewhere
- A fixture deviation left without a disposition that would survive being cited in a package
What is at stake
A qualification result cited beyond what it proves invites a finding when an authority reads the report against the claim. For a radio, emission and susceptibility margins matter across the whole aircraft, so a result with no headroom can put a completed campaign back in question once the article is installed alongside other equipment on shared antennas and buses.
How the work runs
Anchor to the radio plan
Fix the radio qualification plan, the declared categories, and the claims the evidence will feed.
Match report to setup
Confirm each declared category was actually represented by the setup that reports it.
Reconcile loads and margins
Check power-input results against declared loads and confirm emission and susceptibility margins hold.
Order the radio re-test work
Sequence re-test and disposition items by closure difficulty against the citing date.
What the buyer receives
- A product-specific gap list against the radio qualification plan, ranked by closure difficulty
- A trace map from each radio qualification result into the certification basis and means of compliance
- A closure sequence that orders re-test or disposition work before the radio evidence is cited
Who uses the output
- Qualification engineers confirming the radio campaign supports the claims it will feed
- Certification leads deciding which radio results are ready to cite and which need rework
- Program managers weighing radio re-test cost against the schedule the certification package depends on
How the work fits into the transaction or program
The review runs at the close of the qualification campaign and before the evidence is cited, so a weak or over-declared result is caught while re-test is still open. Its gap list drives the disposition or re-test work, and its trace map hands the TSO or STC package results that already reconcile to the certification basis and to the article's declared loads.
Start with a single asset
Confirm requirements map to substantiating evidence.
Jurisdiction-specific considerations
The FAA and the European system can accept the same DO-160G evidence, but the emission and power-input conditions expected for a communication article are not always aligned. The review notes where a declared category rests on a revision or condition the receiving authority treats differently.
Regulatory limits
The review measures the radio qualification evidence against the claims it will feed and marks where it holds or overreaches. It witnesses no testing, approves nothing, grants no authorization, and makes no airworthiness determination on the article.
What this review does not cover
- Running or re-running the radio qualification tests
- Signing off a disposition on a radio test failure for the supplier
- Any equipment authorization or airworthiness determination on the radio
Specific to this review
- An emission result recorded at the declared limit is a latent finding, because it leaves no room for the installation variation the article will actually see on an aircraft.
- Power-input data and the loads a radio declares elsewhere in its package are estimated at different times, so reconciling them is where the review most often finds them disagreeing.
- Susceptibility margins that look adequate on the bench can be too tight once the article sits alongside other equipment, so the review reads margin, not just pass or fail.
Sources
U.S. Government (eCFR). Type certificates, STCs (Subpart E), TSO authorizations (Subpart O), PMA (Subpart K), and export airworthiness approvals (Subpart L).
European Union / EASA. EASA design and production certification, STCs, ETSO authorizations, and EASA Form 1 release.
RTCA. Environmental qualification test categories and procedures referenced by TSO and equipment qualification.
SAE International. Development assurance process at aircraft and system level, including requirements capture and validation.
Frequently asked questions
How is this different from just reading the pass or fail on each report?
A pass at the exact limit still passes, but it demonstrates only the bench condition. The review reads the margin behind each result and reconciles power-input data to the article's declared loads, so the package cites results that hold up when the radio is installed alongside other equipment.
Relevant glossary terms
Related pages
Where this fits
Talk to an engineer who has done this work
We will walk through your current state, the records or evidence involved, and a scoped first engagement.
Talk through the aircraft, records, evidence, deadline, and next useful step.