The Sony UTX-M40/K42 is a rugged, all-metal wireless microphone transmitter designed for professional performers, presenters, and content creators. Compatible with Sony’s URX-P40 camera-mount receiver, this reliable device offers high-quality digital audio with a broad bandwidth and a wide selection of UHF channels. With a transmission range of up to 330 meters,…
The Sony UTX-M40/K42 is a rugged, all-metal wireless microphone transmitter designed for professional performers, presenters, and content creators. Compatible with Sony’s URX-P40 camera-mount receiver, this reliable device offers high-quality digital audio with a broad bandwidth and a wide selection of UHF channels. With a transmission range of up to 330 meters, the UTX-M40/K42 ensures stable performance even in demanding environments.
Overview:
The Sony UTX-M40/K42 is a rugged, all-metal wireless microphone transmitter designed for professional performers, presenters, and content creators. Compatible with Sony’s URX-P40 camera-mount receiver, this reliable device offers high-quality digital audio with a broad bandwidth and a wide selection of UHF channels. With a transmission range of up to 330 meters, the UTX-M40/K42 ensures stable performance even in demanding environments.
| Feature | Description |
|---|---|
| High-Quality Digital Audio | Combines trusted analog UHF transmission with proprietary digital processing for clear, natural sound reproduction. |
| NFC Sync Function | Easily pair with your receiver by pressing and holding the NFC button—find the best RF channel automatically and sync effortlessly. |
| Interchangeable Microphone Capsules | Features a dynamic cardioid capsule, supporting over 40 different capsules from various manufacturers for versatile sound capture. |
| Auto Gain Mode | Automatically adjusts input levels to prevent distortion, with a +15 dB boost mode for distant speakers or quieter audio. |
| OLED Display | Bright, high-visibility screen showing real-time status, including frequency, battery life, and more—visible even outdoors. |
| Multiple Power Options | Powered by two AA batteries (alkaline or NiMH rechargeables, with around 8 hours runtime) or USB for continuous use. |
| Durable Build | All-metal construction ensures durability in tough shooting and outdoor conditions. |
| Advanced Control Features | Low-cut filter to reduce plosives and wind noise, programmable Power/Mute button, and navigation menus for easy setup. |
| Multi-mic Operation | Supports up to 16 microphones simultaneously at a single location. |
| Compatibility | Fully compatible with Sony UWP-D series and WL-800 series transmitters and receivers, enabling flexible system integration. |
| Model | Frequency Range | Channels Covered |
|---|---|---|
| K21 | 470.025 MHz to 542.000 MHz | UHF TV channels 21–29 |
| K33 | 566.025 MHz to 630.000 MHz | UHF TV channels 33–40 |
| K42 | 638.025 MHz to 694.000 MHz | UHF TV channels 42–48 |
Note: These models operate in different frequency bands—select the appropriate model based on your regional regulations and your existing system compatibility.
The UTX-M40/K42 seamlessly integrates with Sony's professional wireless ecosystem, especially the UWP-D and WL-800 series systems, offering flexible options for studio or on-location setups.
The Sony UTX-M40/K42 provides high-fidelity audio, reliable wireless operation, and versatile power options, making it ideal for demanding professional environments. Its broad frequency selection and compatibility ensure you’re always prepared for any shooting scenario.
| Item | Description |
|---|---|
| Sony UTX-M40/K42 | Wireless Handheld Cardioid Microphone Transmitter |
| Microphone Holder | Dedicated holder for the transmitter |
| Parameter | Details |
|---|---|
| Oscillator Type | Crystal-controlled PLL synthesizer |
| Antenna Type | 1/4 wavelength wire antenna |
| Carrier Frequencies | 638.025 MHz to 694.000 MHz (UHF-TV channels 42 to 48) |
| RF Output Power | 30 mW / 5 mW selectable (UC, U, CE, LA, CN models) |
| Capsule Type | Dynamic |
| Directivity | Uni-directional |
| Reference Audio Input Level | -55 dBV (GAIN MODE set to NORMAL, 0 dB attenuation) |
| Maximum Audio Input Level | 151 dB SPL (21 dB attenuation, using supplied microphone unit) |
| Audio Attenuator Adjustment Range | 0 dB to 21 dB (3 dB steps) |
| Frequency Response | 70 Hz to 18 kHz (most models) / 70 Hz to 15 kHz (J model) |
| Signal-to-Noise Ratio | 60 dB (-60 dBV, 1 kHz sine wave input) / 102 dB (AUTO GAIN) / 96 dB (NORMAL) |
| Distortion | 0.9% or less (-60 dBV, 1 kHz input) |
| Audio Delay | Approx. 0.35 ms |
| Tone Signal Frequency | 32.768 kHz (WL800 mode) |
| Display | OLED |
| Power Requirements | DC 3.0 V (two LR6/AA batteries) / DC 5.0 V (USB Type-C) |
| Battery Life* | Approx. 8 hours (30 mW output) / Approx. 10 hours (10 mW output) |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage/Transport Temperature | -20°C to +55°C (-4°F to 131°F) |
| Dimensions | Ø 48 mm × 258 mm (1 15/16" × 10 1/4") |
| Mass | Approx. 255 g (9.0 oz), excluding batteries |