Intelligent Architecture
Constant Able™ PTT
Harris UDC (HA1)
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.
Auto-Sensing
The Intelligence Core
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.
Microphone Support
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✓Dynamic (Low Impedance / Mil-Spec)
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✓Electret (High Impedance / Civilian)
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✓150 Ohm Variants
Wiring Handling
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✓US NATO Standard
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✓Peltor Wired (EU Standard)
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✓No switches. No reprogramming.
Radio Interface: Harris UDC (15-Pin)
Direct connection to the legacy Harris Universal Device Connector (UDC).
Compatible Models:
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XG-75 / P7300 (P5500, P5400, P5300)
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XG-25
Proven Compatibility
Field-proven with professional comms gear:
Peltor Comtac II–VIII
Ops-Core AMP
MSA Sordin
OTTO NoizeBarrier
N•Ear 360
Connectors: U-174/U (NATO J11) or U-384 (Dual Comm Split Audio*)
Mission Specs
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⚡ Zero batteries required
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🌊 IP67 Sealed (Waterproof/Dustproof)
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🛡️ Integrated hot mic shroud
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🔄 Rotating ambidextrous clip
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🇺🇸 Buy American Act Compliant
Compatibility Note
Not compatible with DISCUS. DISCUS is designed exclusively for dynamic microphones. Constant Able supports electret and amplified systems with full automatic switching.
DISCO32 Tactical Antennas — Aberdeen, NC
Designed & Manufactured by DISCO32 • 1-Year Warranty
