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GET /v1/quarter-wave

Quarter-wave transformer

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/transmissionline-api

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Get an API key

Code snippets

curl "https://api.oanor.com/transmissionline-api/v1/quarter-wave" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/transmissionline-api/v1/quarter-wave", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/transmissionline-api/v1/quarter-wave");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/transmissionline-api/v1/quarter-wave",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "A quarter-wave (90°) transformer of characteristic impedance Z0 = √(Z1·Z2) matches two real impedances. It only matches resistive loads and is exact at one frequency.",
        "inputs": {
            "load_impedance": 100,
            "source_impedance": 50
        },
        "transformer_impedance": 70.710678
    },
    "meta": {
        "timestamp": "2026-06-05T11:30:29.972Z",
        "request_id": "549932d3-9356-4d74-a64e-fabf43a44992"
    },
    "status": "ok",
    "message": "Quarter-wave transformer",
    "success": true
}