The most capable, broadly compatible Push-to-Talk for two-way radios on the market. Developed with SRT and SWAT operators to tackle the toughest interoperability challenges.
Push-to-talks aren’t just an accessory—they’re the core of comms. The Constant Able uses embedded proprietary algorithms to decide, rewire, and adjust gain within 100ms.
The legendary Jedi/XTS universal connector interface.
Field-proven with professional comms gear:
Connectors: U-174/U (NATO J11) or U-384 (Dual Comm Split Audio*) — If your headset downlead has red rings, you will require the TP-105 O-ring.
DISCUS pairing: DISCUS requires a dynamic (low-impedance) microphone. You can run DISCUS in-line with Constant Able when the headset mic is dynamic. If your headset uses an electret or amplified boom mic, use Constant Able alone — DISCUS will not drive those mics.
If the downlead on your headset has red rings, you will require the TP-105 O-ring as an addition to this PTT. Red rings typically indicate the U-384 (Dual Comm Split Audio*) configuration.
Low-profile MOLLE mount secures your PTT to plate carrier, chest rig, or shoulder strap. Ambidextrous, shock-cord retention. Made in USA.
Dynamic and electret in-ear options — the Constant Able auto-detects either type. No variant selection needed.
Built for the XTS Universal accessory interface used on these manufacturer radio models:
Platform names: ASTRO XTS, Universal Connector, XTS series.
Constant Able PTT with auto impedance sensing for dynamic and electret headsets. No batteries required. Match by physical plug and radio model—not third-party chart codes alone.
