Harmonai ACT-802 Square-Tube Conference Microphone image 1

Harmonai ACT-802 Square-Tube Conference Microphone | Professional UHF Wireless Conference System

The Harmonai ACT-802 square-tube conference microphone operates in the UHF 610–780 MHz band with PLL frequency synthesis, features a supercardioid condenser column microphone and a...

$131.91

Model: ACT-802方管会议话筒
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai ACT-802 Square-Tube Conference Microphone | Professional UHF Wireless Conference System

Overview

The Harmonai ACT-802 square-tube conference microphone operates in the UHF 610–780 MHz band with PLL frequency synthesis, features a supercardioid condenser column microphone and a...

Price: $131.91
Model: ACT-802方管会议话筒
Category: Microphones

Specifications

Parameter	Value
Operating Voltage	DC 12 V
Operating Current	600 mA
Power Consumption	7.2 W
Display	Dual LCD
RF Carrier Range	615–695 MHz
Main Unit Operating Distance	120 m
Modulation System	FM
Pilot Tone Method	Digital pilot tone
Maximum Channel Count	200
System Compatibility	Up to 30 units operating simultaneously
Frequency Response	80 Hz–15 kHz (±3 dB)
Dynamic Range	>110 dB
Total Harmonic Distortion (THD)	<0.5%
Signal-to-Noise Ratio (SNR)	>100 dB(A)
RF Sensitivity	−98 dBm (30 dB S/N)
Image Rejection	>75 dB
Output Interfaces	XLR ×2 / ¼-inch ×1
Audio Output Level	XLR: +10 dBV / ¼-inch: +8 dBV
Output Impedance	XLR: 3 kΩ / ¼-inch: 3 kΩ
Power Requirement (Receiver)	12 V / 800 mA
Operating Temperature	0–50 °C
Receiver Sensitivity	−105 dBm
THD	<0.01%
Audio Output Voltage	0.3 V

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

Business hours: Monday to Friday 09:00 - 18:30
Inquiry channels: phone / email / website form
Tip: share budget, quantity and use scenario in advance

Harmonai ACT-802 Square-Tube Conference Microphone product image

Product Overview

The Harmonai ACT-802 square-tube conference microphone is a professional-grade UHF wireless conference system microphone featuring PLL frequency synthesis technology and microcomputer CPU control. It operates across the 610–780 MHz frequency band, supports intelligent 200-channel selection, and allows up to 30 units to operate simultaneously without interference. Equipped with a supercardioid condenser column microphone and a 20 cm square-tube pickup boom, it delivers precise audio capture at an effective pickup distance of up to 50 cm — ideal for all professional meeting environments.

RF System

Operating frequency: 610–780 MHz · FM modulation · Digital pilot tone · RF carrier: 615–695 MHz · Max. channel count: 200 · RF output power: 30 mW · Spurious emission suppression: >50 dB

Receiver Specifications

Receiver sensitivity: −105 dBm · Adjacent-channel interference rejection: >60 dB · Signal-to-noise ratio (SNR): >100 dB(A) · Dynamic range: >110 dB · Total harmonic distortion (THD): <0.01% · Frequency response: 80 Hz–15 kHz (±3 dB)

Output Interfaces

XLR balanced output ×2 (+10 dBV, 3 kΩ) · ¼-inch unbalanced output ×1 (+8 dBV, 3 kΩ) · Audio output voltage: 0.3 V

Pickup Specifications

Condenser/column microphone · Supercardioid polar pattern · Pickup sensitivity: >−20 dBm (1 V) · Audio response: 100 Hz–18 kHz · Pickup boom length: 20 cm · Effective pickup distance: 50 cm

Transmitter Specifications

Transmit power: >+10 dBm (10 mW) · Frequency stability: ±0.001% · Mobile phone electromagnetic interference rejection · Microphone operating range: 150 m (line-of-sight, unobstructed)

Power & Battery Life

Transmitter: 1.5 V × 3 AA batteries · Battery life: >10 hours (2400 mAh) · Intelligent low-battery warning · Receiver: DC 12 V / 800 mA · Power consumption: 7.2 W

Dimensions & Physical Design

Receiver: 44.4 mm H × 483 mm W × 185 mm D · Conference base: 18 cm × 12 cm × 9 cm (L × W × H) · Dual LCD displays · Operating temperature: 0–50 °C

Circuit Technology

PLL frequency synthesis · Dynamic audio compression and automatic level control (ALC) · Dual noise squelch: noise-lock + tone-code navigation squelch · Microcomputer CPU control

Recommended Applications

The ACT-802 square-tube conference microphone is engineered for professional conferences, academic lecture halls, multi-function meeting rooms, government agencies, and corporate training sessions. Its 20 cm square-tube pickup boom precisely captures speaker voice, while the supercardioid polar pattern effectively suppresses ambient noise. With support for up to 30 units operating concurrently, it meets the demands of medium- to large-scale meetings. Dual noise squelch — noise-lock and tone-code navigation — ensures consistently clear, noise-free audio throughout every session.

Contact the Harmonai team anytime for more product details or a customized quotation.