The Ahuja AWM-495V1 single-channel VHF wireless microphone system is engineered for direct electrical, acoustic, and physical interfacing across commercial public address (PA) systems, educational installations, stage auditoriums, conference facilities, seminar halls, and places of worship. Its standardized output architecture and crystal-controlled RF transmission ensure seamless interoperability with legacy and modern sound reinforcement hardware.
Audio System & Amplifier Interfacing
The AWM-495V1 receiver features an audio output stage delivered via a standard 6.3 mm (1/4 inch) unbalanced phone jack socket. It supplies an output voltage level of 0–55 mV across an impedance load of 1 kΩ, matching the input sensitivity standards of professional PA equipment. This enables direct, plug-and-play integration with:
- PA Mixer Amplifiers: Connects to unbalanced microphone level (Mic In) inputs across Ahuja and third-party PA mixer amplifiers using standard 6.3 mm mono patch cables.
- PA Booster Amplifiers: Interfaces through preamplifiers, line mixers, or dedicated microphone pre-amp stages before distribution into high-wattage booster systems.
- Active & Powered Speakers: Direct interface into portable, wall-mount, or stage active loudspeaker enclosures equipped with 6.3 mm mic-level input jacks.
- Audio Mixers & Consoles: Suitable for multi-channel mixing consoles utilizing 6.3 mm TS unbalanced line/mic channel inputs with independent gain control.
RF Frequency Matching & Transmission Architecture
The wireless transmission link operates across factory-calibrated Quartz Crystal Locked VHF High Band frequencies. Carrier frequency stability is maintained at ±0.005% Quartz Crystal Controlled tolerance, preventing channel drift during prolonged continuous operation. To ensure interference-free performance:
- Matched Transmitter & Receiver Pairs: The handheld transmitter and receiver unit are pre-configured to identical factory-assigned VHF frequencies. Operating multiple wireless sets within the same acoustic zone requires distinct crystal frequencies to prevent carrier clash.
- Antenna Matching: The handheld transmitter integrates an internal dipole antenna, while the receiver utilizes an external rear-mounted telescopic antenna. For optimal RF signal continuity and preservation of the > 80 dB signal-to-noise ratio, the receiver antenna must be fully extended vertically.
- Modulation Standard: Uses FM (F3E) modulation with a maximum RF transmitter output power of 15 mW, tailored for stable short-to-medium range transmission within line-of-sight environments.
Power Supply & Operational Prerequisites
The AWM-495V1 system divides power distribution between fixed mains power for the stationary receiver and independent DC battery power for the mobile transmitter:
| Subsystem Unit | Input Voltage / Power Requirement | Interface / Power Source Details |
|---|---|---|
| Receiver Unit | 12V DC | Powered via external 220–240V AC mains adapter (supplied with unit) plugged into rear DC socket |
| Handheld Transmitter | 3V DC (Current draw: ≤ 100 mA) | Operates via 2 x 1.5V AA pencil cells (they are not included) installed in the internal battery compartment |
Dynamic acoustic compatibility is governed by the handheld transmitter's cardioid dynamic capsule, which delivers a tailored 50 Hz to 15,000 Hz audio frequency response with a dynamic range of 80 dB and total harmonic distortion below 0.5%, matching standard speech and vocal reproduction requirements.
