SELECTIVE CALLING (SELCAL) DECODERS
seamless communication across various VHF and HF transceivers
Efficient Communications. Enhanced Safety.
FreeFlight Systems’ Selective Calling (SELCAL) decoders revolutionize ground-to-air communication by enhancing operational efficiency and safety. Designed for seamless integration with VHF and HF transceivers, these decoders eliminate the need for constant radio surveillance, ensuring crews receive alerts instantly and reliably.
Why SELCAL?
Selective Calling (SELCAL) technology allows ground stations to send unique audio signals to individual aircraft, alerting crews without requiring constant radio surveillance. This streamlines cockpit operations and enhances long-haul communication reliability.
Features
- High Performance: High-performance decoder circuit processes low signal-to-noise ratios with minimal false alerts.
- SWaP Optimized: Compact, lightweight (≤ 3.2 lbs), and low-power design for easy integration into tight avionics bays.
- Versatile: Supports 2- or 5-channel configurations across JetCall and RJ-2 models for varied mission profiles.
- Retrofit-Ready: Standard MIL type D connectors with removable pins simplify installation in legacy aircraft.
- Flexible Integration: Compatible with a wide range of VHF and HF transceivers—no manual adjustments required.
- Self-Monitoring: Built-in self-test circuit automatically verifies decoder channel integrity.
- Certified Performance: Meets TSO-C59, DO-160A/F, and MIL-STD 810E, 454N, 461C for commercial and military applications.
Attributes
Front-panel thumbwheel switch enables fast SELCAL code setup—no wire jumpers or remote switches required.
High-performance decoder circuit minimizes false alerts from low signal-to-noise ratios and includes a built-in self-test for channel integrity.
Modular construction with switched capacitor filters ensures stable performance without drift—no resonant reeds or active filters.
Meets TSO-C59, DO-160A/F, and MIL-STD 810E, 454N, 461C standards for commercial and military aircraft.
Compact, lightweight, and low-power units with MIL type D connectors—ideal for integration into legacy and modern aircraft platforms.
JETCALL 5
- 2- or 5-Channel SELCAL Decoder
- Seamless integration with VHF and HF transceivers
- Simplified setup with Thumbwheel coding
- Extensive input signal range with 43,680 code letter combinations
Product Number:
2800-0012-105: Jet Call 5 SelCal Decoder (5 Channel)
JETCALL 2
- 2-Channel SELCAL Decoder
- High-performance decoder circuit to minimize false alerts
- Solid-state circuitry for reliable performance
- Exceeds airline category requirements
Product Number:
2800-0012-102: Jet Call 5 SelCal Decoder (2 Channel)
RJ-2
- Military 2-Channel SELCAL Decoder
- Lightweight, small, and low-power design
- Easy installation with standard MIL type D connectors
- Enhanced safety protocols for critical communication
Product Numbers:
85921-00: RJ2 SelCal Decoder (Military)
Explore the Technology Behind Reliable Aircraft Communication
From cockpit noise reduction to retrofit integration, these articles give an introduction to how SELCAL decoder technology enhances safety, simplifies operations, and supports technicians in modernizing aircraft communication systems.
Tailored for Every Mission Profile
Fixed-Wing Aircraft
deal for legacy and modern fleets, JetCall decoders offer a low-impact retrofit solution that meets international standards and simplifies compliance with evolving communication mandates.
Rotorcraft
Engineered for reliability in dynamic environments, SELCAL decoders deliver clear alerts and stable performance, even in high-vibration or remote operations—reducing pilot workload and enhancing mission readiness.
Urban Air Mobility (UAM)
Compact and low-power, JetCall decoders integrate seamlessly into space-constrained UAM platforms, supporting efficient ATC communication and contributing to safer, quieter cockpit environments.
Military Aviation
The rugged RJ-2 model is built to meet stringent defense specifications, offering dependable connectivity and rapid alerting in mission-critical scenarios where communication integrity is non-negotiable
SELCAL Decoders Frequently Asked Questions
What aircraft types are compatible with JetCall SELCAL decoders?
JetCall 2, JetCall 5, and RJ-2 models are compatible with fixed-wing, rotor-wing, military, and Urban Air Mobility platforms. Their compact design and standard MIL connectors make them ideal for retrofit and new installations.
How is the SELCAL code configured on JetCall units?
SELCAL codes are configured using external thumbwheel switches—no wire jumpers or remote switches are required, simplifying setup and reducing installation time.
Can SELCAL decoders be installed in legacy aircraft?
Yes. JetCall decoders are specifically designed for retrofit applications, with low power draw, compact form factor, and minimal impact to existing wiring and avionics.
What certifications do JetCall and RJ-2 units meet?
JetCall units are certified to TSO-C59 and DO-160A. RJ-2 units meet DO-160F and military standards including MIL-STD 810E, 454N, and 461C, ensuring compliance across commercial and defense sectors.
How do SELCAL decoders improve cockpit operations?
SELCAL decoders reduce HF radio chatter and eliminate the need for constant monitoring, allowing pilots to focus on flight-critical tasks while ensuring timely alerts from ATC.
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