Zaxcom ZMT4-HM Plug-On Wireless Transmitter
- Plug-on transmitter for handheld and plant mics
- 12 to 48 V phantom power and NeverClip
- Up to 7 hours on one NP-50 battery
From $2,195.00 USD
Zaxcom ZMT4-HM Plug-On Wireless Transmitter
The Zaxcom ZMT4-HM is a lightweight plug-on wireless transmitter with a built-in antenna, for handheld mics, ENG work, and plant mics rather than a boom pole.
It weighs 3.1 oz (88 g). The case is high-strength, impact-resistant nylon polymer with rounded edges and machined metal. Its 3-pin XLR connector fits most microphones, and phantom power is selectable at 12, 24, 32, or 48 V.
Encrypted Audio and Internal Recording
Fully digital modulation keeps the transmission encrypted. The ZMT4-HM can record the same audio to a microSD card inside the transmitter. Recordings use Zaxcom’s MARF format, which keeps the file intact if the battery dies or the card comes out early.
NeverClip and ZHD
NeverClip pairs two A-D converters to extend the dynamic range to 136 dB, with no limiter distortion. ZHD modulation fits 4 to 9 channels into each megahertz of spectrum for crowded city locations, and XR mode gives the longest range in controlled spaces.
ZaxNet and Power
ZaxNet, Zaxcom’s 2.4 GHz control link, lets the mixer change the frequency, preamp gain, and output power, and start, stop, or play back the internal recorder remotely. One NP-50 battery runs the ZMT4-HM for up to 7 hours, depending on the microphone.
Frequency Bands
The .5 band covers 512 to 608 MHz. The .6 band covers 578 to 698 MHz and is not available in the US.
Features
- Plug-on transmitter with a built-in antenna
- 3-pin XLR input
- Phantom power selectable at 12, 24, 32, or 48 V
- Encrypted transmission
- Internal microSD recording with timecode
- NeverClip, 136 dB dynamic range
- ZaxNet remote control
- 25, 50, or 75 mW output
- Up to 7 hours on one NP-50 battery
- 3.1 oz (88 g) with battery
Available Options
| Frequency | Part Number | Band |
|---|---|---|
| 512 – 608 MHz | ZMT4.5-HM | .5 band |
Specifications
| Transmitter | |
|---|---|
| RF Modulation | Proprietary digital |
| .5 Band | 512 – 608 MHz |
| .6 Band | 578 – 698 MHz (not available in the US) |
| RF Frequency Step | 100 kHz |
| RF Bandwidth | ZHD48 50 kHz; ZHD96 100 kHz; XR 200 kHz |
| Channel Separation | ZHD48 as close as 100 kHz (receiver dependent); ZHD96 as close as 200 kHz; XR 400 kHz |
| Antenna Connector | SSMA female, 50 Ω |
| Emission Designator | 180KV2E, 100KV2E, 50KV2E |
| FCC | Part 74.861 |
| Power Output | 25, 50, or 75 mW, software selectable |
| Audio | |
| Distortion | 0.002% |
| High-Pass Filter | Off or 30 – 220 Hz, in steps |
| Mic Power | 12 V at 50 mA max; 48 V at 10 mA max |
| Mic Connector | XLR female, balanced |
| Input Range | −60 to −30 dBu |
| Mic Impedance | 6.8 kΩ |
| A/D Conversion | 24-bit, 48 kHz |
| Timecode and Recording | |
| Clock Accuracy | 1.54 PPM (1 frame in 6 hours) |
| Timecode Type | SMPTE |
| Frame Rates | 23.98, 24, 25, 29.97 NDF, 29.97 DF, 30 NDF, 30 DF |
| Media | microSD card |
| File Format | .ZAX, converts to BWAV or MP3 |
| ZaxNet Receiver | |
| RF Frequency Range | 2.403 – 2.475 GHz |
| RF Modulation | Digital spread spectrum |
| RF Frequency Step | 1 MHz |
| RF Bandwidth | 1 MHz |
| Channel Separation | 2 MHz |
| Sensitivity | −96 dBm |
| Physical and Power | |
| Dimensions | 3.4 × 1.6 × 0.55 in (86.4 × 40.6 × 14 mm), H x W x D |
| Weight | 3.1 oz (88 g) with battery |
| Display | Graphic OLED |
| Battery | NP-50 |
| Battery Life | Up to 7 hours, microphone dependent |
| Latest Specifications | Specifications are subject to change without prior notice. For current information, visit zaxcom.com. |
