Standard Horizon VLH-3000A 30W Dual Zone PA/Loud Hailer/Fog w/Listen Back & 2 Optional Intercom Stations

The Standard Horizon VLH-3000A 30W Dual Zone PA/Loud Hailer/Fog with Listen Back and 2 Optional Intercom Stations is a maritime public address system engineered for vessel communication and emergency signaling. With 30 watts of PA output, dual forward/aft zoning capability, and integrated fog signal functionality, this hailer delivers clear, commanding voice projection across deck and water while maintaining two-way listen-back capability for confirming message receipt—a critical operational requirement for commercial maritime operations, tow operations, and rescue coordination.

The system features six pre-programmed fog signals (Underway, Stop, Sail, Tow, Anchor, and Aground) that meet international maritime signaling standards, eliminating manual horn operation in low-visibility conditions. A noise-canceling microphone with dedicated CALL, IC1, and IC2 keys allows operators to switch seamlessly between PA broadcast and intercom station communication without removing the handset. The dual-zone architecture enables selective transmission to forward or aft speakers, or simultaneous broadcast to both zones—essential for coordinating crew across different vessel sections or managing approach/departure sequences. Compatibility with MLS-300 and MLS-310 amplified external audio speakers extends projection range and flexibility in speaker placement.

This unit is purpose-built for commercial fishing vessels, tugboat operations, offshore support craft, and any vessel requiring rapid crew coordination and regulatory-compliant fog signaling. The 5.6-pound compact profile (10 x 6 x 15 inches) fits standard wheelhouse mounted installations without consuming valuable console space. Operators managing multiple zones, conducting towing operations in restricted visibility, or coordinating emergency procedures benefit directly from integrated intercom access and pre-programmed signal functionality, reducing operator workload and ensuring consistent, standardized messaging during critical operations.