ATV-SG1

Directional Sound Capture
The acoustic tube focuses pickup on the subject while reducing unwanted background sound.

Detailed Audio
A large-diameter diaphragm captures voices and other sources with natural clarity.

Integrated Shock Isolation
The internal shock mount reduces handling noise caused by camera movement and vibration.

Interference Resistance
Noise-immunity technology helps prevent hum and radio-frequency noise from nearby electronic devices.

Stepless Gain Control
A rear adjustment knob provides smooth control over the recording level.

Safety Track Recording
A reduced-level backup track helps protect recordings from distortion caused by sudden volume spikes.

Low-Frequency Noise Reduction
A switchable low-cut filter reduces noise from wind, traffic and ventilation systems.

External Microphone Input
Connect a compatible wired lavalier microphone or wireless receiver for simultaneous recording.

Headphone Monitoring
A dedicated headphone output with volume control supports real-time audio monitoring.

Flexible Camera Mounting
The adjustable shoe plate and sliding rail support precise positioning around camera accessories.

Automatic Power Control
The microphone can power on and off with a compatible camera.

Rechargeable Operation
The built-in battery supports extended recording sessions between charges.

Outdoor Wind Protection
The included wind muff helps reduce wind noise during location recording.

General Specifications
Device Type: On-camera shotgun microphone
Element: Fixed-charge back plate, permanently polarized condenser
Diaphragm Diameter: 14 mm
Acoustic Tube Length: 100 mm
Polar Pattern: Line and gradient
Frequency Response: 60 Hz to 20,000 Hz
Gain Range: 37 dB, stepless
Safety Track Level: -6 dB

Filter
Low-Frequency Roll-Off: 160 Hz
Filter Slope: 24 dB/octave

Sensitivity
Maximum Gain: -28 dBV
Gain Setting 5: -35 dBV

Acoustic Performance
Maximum Input Level at Maximum Gain: 126 dB SPL at 1 kHz, 3% THD
Maximum Input Level at Minimum Gain: 132 dB SPL at 1 kHz, 3% THD
Dynamic Range: 109 dB at 1 kHz, 3% THD, maximum gain
Signal-to-Noise Ratio: 77 dB at 1 kHz, 1 Pa, A-weighted, maximum gain

Audio Connections
Main Output: 3.5 mm (1/8 in) stereo mini-jack
External Input: 3.5 mm (1/8 in) stereo mini-jack
External Input Mixing: Mono
External Input Power: 2.7 V plug-in power
Headphone Output: 3.5 mm stereo mini-jack
Minimum Headphone Impedance: 16 ohms
Headphone Output at 32 Ohms: 100 mW at 1 kHz
Headphone Output at 16 Ohms: 75 mW at 1 kHz
Headphone Total Harmonic Distortion: Less than 1% at 60 mW, 1 kHz, 32-ohm output

Power
Battery Type: Built-in 3.85 V lithium-ion battery
Charging Connection: USB Type-C
Charging Time: Approximately 2.5 hours
Maximum Operating Time: Approximately 24 hours without headphone monitoring
Automatic Power Control: Camera-linked power on and off

Mounting
Shoe Plate Positions: 12
Rotation Increments: 30 degrees
Horizontal Adjustment: Sliding rail
Accessory Mount: Integrated shoe

Environmental
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -10°C to 60°C (14°F to 140°F)
Storage Humidity: 10% to 90% RH, non-condensing

Dimensions and Weight
Length: 127.1 mm (5.0 in)
Microphone Body Diameter: 35 mm (1.4 in) maximum
Height: 82 mm (3.2 in)
Weight: Approximately 155 g (5.5 oz)

Construction
Manufacturing Location: Japan
Shock Mount: Integrated
Noise Immunity: Radio-frequency interference resistance

Included Accessories
Audio Cable: Coiled 3.5 mm stereo mini-plug cable
Audio Cable Length: Approximately 5 cm (2.0 in), 50 cm (20 in) extended
Charging Cable: USB Type-A to USB Type-C
Charging Cable Length: 50 cm (20 in)
Wind Protection: Dedicated wind muff