Pantsforbirds
(empty)
Last verified:
What is Pantsforbirds?
ADSBee m1421 is a dual-band ADS-B receiver module for aircraft detection and tracking in embedded applications like drones, weather balloons, and airport ground stations. It combines ultra-low power consumption (under 60mW) with a compact form factor (23.4 x 14.5mm x 2.7mm, under 2 grams) and open-source firmware. The module supports both Mode S and UAT protocols with multiple output formats (GDL90, MAVLINK, Aircraft JSON, CSBee).
Pantsforbirds pricing
Pricing model: Freemium
Standard variant: $48 (single unit), $45 (10-99), $42 (100-999), $39 (1000+). NDAA-compliant variant: $75.
Pantsforbirds pros
- Ultra-compact and low-power: 23.4 x 14.5mm x 2.7mm form factor, under 2 grams, draws less than 60mW
- Dual-band reception (Mode S and UAT) with UAT uplink protocol support (TIS-B traffic / FIS-B weather)
- Fully open-source firmware and schematics under GPL v3 with unified aircraft tracking logic
- NDAA-compliant variant available; volume pricing available starting at $39/unit
Pantsforbirds cons
- NDAA-compliant variant costs $75 versus $48 standard (though expected to reach parity by December 2026)
- Limited manufacturing capacity for NDAA variant; U.S. production capacity still being scaled
- Content incomplete; full performance metrics and range/sensitivity specifications not provided
Frequently asked questions about Pantsforbirds
Does ADSBee 1421 replace the ADSBee 1090?
No. The 1421 and 1090 have different architectures optimized for different applications. The 1421 uses the LR2021 for a highly integrated, low-power Mode S receiver, while the 1090 uses a different discrete RF component architecture.