The Zaxcom ZMT4 has taken digital recording wireless to the next level with longer battery life, NeverClip™ in all modes, and power for all microphones – from a 5V lavalier to a 48V phantom powered mic – and a new ultra-low noise preamp.
Deliver pristine audio quality with the Zaxcom ZMT4, an incredibly small, lightweight, talent-friendly transmitter ideal for sound professionals. Weighing only 2.2oz (62g), the Zaxcom ZMT4 is constructed from a high-strength, impact-resistant nylon polymer casing with rounded edges and machined metal that’s cool to the touch.
Features
- NEVERCLIP™
NeverClip™ is available in all modes on the ZMT4. It works by utilizing two A-D converters to extend the dynamic range of the transmitter to 136 dB, so there’s never any limiter distortion.
- INTERNAL RECORDING
Audio is simultaneously transmitted and recorded to a removable microSD card using the highly reliable MARF (Mobile Audio Recording Format) which eliminates file corruption common to recordings due to a dead battery or early card removal.
- ZAXNET™
ZMT4 is equipped with ZaxNet™, a long-range remote-control system allowing the user to change the frequency, pre-amp gain, sleep mode, and place the internal recorder in record, playback, and stop modes – all without ever needing to disturb talent.
- POWERROLL™
To extend battery life, PowerRoll™ adjusts the ZMT4’s power level to 50mW when the audio received from it is being recorded by a ZaxNet™ compatible recorder. When the transmitter audio isn’t being recorded the power is automatically reduced to 10mW.
Specifications
Transmitter
| RF Modulation |
Proprietary Digital Method |
| ZMT4.5 RF Frequency Range |
512 – 608 MHz |
| ZMT4.6 RF Frequency Range |
578 – 698 MHz |
| RF Frequency Step |
100 KHz |
| RF Bandwidth in ZHD96 Mode |
100 KHz |
| RF Bandwidth in XR Mode |
200 KHz |
| Channel Separation in ZHD96 Mode |
as close as 200 KHz |
| Channel Separation in XR Mode |
400 KHz |
| Antenna Connector |
50 Ω SSMA Female |
| Emission Designator |
180 KV2E, 100 KV2E |
| FCC Part |
74.861
|
Transmitter Audio
| Dynamic Range |
136 dB |
| Distortion |
0.01% |
| Frequency Response |
Mode 0 |
| High Pass Filter |
Off or 70 to 220 Hz, Steps |
| Unbalanced Lavaliere Mic Power |
5.0v @ 10mA max |
| Balanced Mic Power |
12v @ 25mA max
24v @ 10mA max
36v @ 10mA max
45v @ 10mA max
|
| Mic Connector |
3-Pin Micro LEMO
|
| Mic Configuration |
Balanced (3-wire) / Unbalanced (2-wire)
|
| Input Range |
-60 to -30 dBu
|
| Mic Impedance |
3.4 k Ω (680 Ω with 12v power mode)
|
| ADC Bit-Depth |
32 Bits
|
| ADC Sampling-Rate |
32 kHz
|
Timecode Reader / Generator
| Clock Accuracy |
1.54 PPM (1 Frame in 6 Hours) |
| Timecode Type |
SMPTE |
| Timecode Frame-Rates |
23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF |
2.4 GHz ZaxNet Receiver
| RF Frequency Range |
2.403 to 2.475 GHz |
| RF Modulation |
Digital Spread Spectrum |
| RF Frequency Step |
0.001 GHz (1 MHz) |
| RF Bandwidth |
1 MHz |
| Channel Separation |
2 MHz |
| Sensitivity |
-96 dBm |
Power
| Power Output |
10 / 50 mW – Software Selectable |
| Power Consumption |
125 mA @ 4.2v with 50mW TX (no ZaxNet or Phantom pwr) |
| Battery Type |
NP-50 |
| Lavalier Battery Life |
Up to 7 hours |
| Phantom Power Battery Life |
Up to 6 hours |
