# AirSafe ADS-B receiver
*sensor . products*

Spire LEMUR payload for space-based reception of Automatic Dependent Surveillance-Broadcast aircraft position reports.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: spire-global
- **sensor**: {"instrument_family":"radiometer","measurement_principle":"passive","frequency_bands_ghz":[1.09],"scan_type":"static","notes":"Passive RF receiver for 1090 MHz ADS-B broadcasts. Current EO-Atlas sensor schema has no dedicated RF receiver family, so this candidate is represented in the radiometer branch pending curator review of a RF-reception family."}
- **entity type**: sensor
- **last verified date**: 2026-06-16
- **verified by**: operator
- **claim status**: unclaimed
- **provider**: spire-global
- **attributes**: {"kind":"sensor","product_status":"operational","deployment_context":"orbital","manufacturer":"spire-global","description":"Spire LEMUR payload for space-based reception of Automatic Dependent Surveillance-Broadcast aircraft position reports.","sensor":"{\"instrument_family\":\"radiometer\",\"measurement_principle\":\"passive\",\"frequency_bands_ghz\":[1.09],\"scan_type\":\"static\",\"notes\":\"Passive RF receiver for 1090 MHz ADS-B broadcasts. Current EO-Atlas sensor schema has no dedicated RF receiver family, so this candidate is represented in the radiometer branch pending curator review of a RF-reception family.\"}"}
- **relevance**: in-scope

## Editorial
AirSafe ADS-B receiver is a passive RF payload for space-based reception of ADS-B Out aircraft position reports. It receives 1090 MHz ADS-B broadcasts from aircraft in Low Earth orbit collection workflows, with downstream services combining satellite reception and ground collection for aircraft surveillance [^nasa-csda-spire][^spire-airsafe-launch]. ADS-B Out position reporting commonly uses 1090 MHz Mode S Extended Squitter, matching the 1.09 GHz receiver band used for this payload [^faa-adsb-installation][^spire-adsb-wiki]. For buyers evaluating coverage inputs, the payload is an RF signal-collection receiver rather than an imaging sensor: its value is in extending aircraft broadcast reception beyond terrestrial receiver geometry, not in measuring reflected or emitted Earth radiance [^spire-airsafe-launch].

## Compositional position
- spire-lemur-2 (missions) --[mission_payloads]--> AirSafe ADS-B receiver

## Sources
- [nasa-csda-spire] | NASA CSDA vendor page for Spire | https://science.nasa.gov/earth-science/csda/vendor-spire/ | tier=agency-doc | accessed=2026-06-16
- [spire-adsb-wiki] | Spire, How does ADS-B work? | https://spire.com/wiki/how-does-ads-b-work/ | tier=operator-marketing | accessed=2026-06-16
- [spire-airsafe-launch] | Spire announces AirSafe ADS-B aircraft tracking product | https://ir.spire.com/news-events/press-releases/detail/14/spire-announces-airsafe-the-first-ads-b-product-from-spire | tier=operator-press | accessed=2026-06-16 | published=2019-10-16
- [faa-adsb-installation] | FAA ADS-B installation guidance | https://www.faa.gov/air_traffic/technology/equipadsb/installation | tier=agency-doc | accessed=2026-06-16

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Source: https://eo-atlas.org/products/sensor/airsafe-ads-b
Maintainer: SpectraWorks B.V. (CC-BY 4.0)