Intelligent Architecture
Constant Able™ PTT
6-Pin NATO (ADF)
Optimized for PRC-152 and PRC-148 transceivers. Connects civilian headsets to Mil-Spec radios or vice-versa with zero menu programming.
Auto-Sensing
The Intelligence Core
The Constant Able uses embedded proprietary algorithms to decide, rewire, and adjust gain within 100ms. Requires radio-provided accessory voltage to function.
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 & Power
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✓US NATO Standard
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✓Peltor Wired (EU Standard)
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⚠Requires Accessory Voltage (3.3V+)
Radio Interface: 6-Pin NATO
Designed for standard 6-Pin (U-283/U) Audio Data Fill connectors providing accessory power.
✓ Fully Compatible (Proven Performance):
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AN/PRC-152 / 152A (Harris Falcon III)
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AN/PRC-148 / 148C (Thales MBITR / JEM / iMBITR)
✘ Not Compatible:
PRC-117 / PRC-119 (Manpacks): These radios do not provide the necessary accessory voltage required to power the Constant Able™ processor.
Proven Headsets
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*) — If your headset downlead has red rings, you will require the TP-105 O-ring.
Mission Specs
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⚡ Uses radio power (No internal batteries)
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🌊 IP67 Sealed (Waterproof/Dustproof)
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🛡️ Integrated hot mic shroud
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🇺🇸 Buy American Act Compliant
Compatibility Notes
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Accessory Voltage: The Constant Able™ requires a radio that provides accessory voltage at the 6-pin connector. It will not function with radios where this power is absent.
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DISCUS: Not compatible with DISCUS. DISCUS is designed exclusively for dynamic microphones.
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U-384 Red Rings: 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.
Compatible radios (NATO U-329/U 6-Pin)
Built for the NATO U-329/U 6-Pin accessory interface used on these manufacturer radio models:
- AN/PRC-152
- AN/PRC-152A
- AN/PRC-148
- AN/PRC-117G
- PRC-152
- PRC-148
- PRC-117G
Platform names: Falcon III, NATO 6-pin, U-329/U, U-229.
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.
