Zaxcom ZMT3-Phantom 2 Miniature Transmitter

The ZMT3-Phantom 2 can be ordered in one of two configurations:

ZMT3.5-Phantom - covering blocks 20 through 23 (512-614 MHz)

ZMT3.6-Phantom - covering blocks 23 through 26 (596 – 698 MHz)

The ZMT3-Phantom 2 is a new transmitter in Zaxcom’s Digital Recording Wireless line. While traditional wireless transmitters are normally placed at the bottom of a boom pole, the ZMT3-Phantom 2 takes its spot near the top. Available in 512 – 614 MHz (blocks 20-23) or 596 – 698 MHz (blocks 23-26)

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Deliver pristine audio quality with the ZMT3-Phantom 2, a lightweight transmitter ideal for sound professionals.

Zaxcom has taken the next step in design and functionality offered in audio. Weighing only 62g (2.2oz), the ZMT3-Phantom 2 is constructed in a high strength impact resistant nylon polymer casing with rounded edges and machined metal that’s cool to the touch.

Microphone Connectivity

The ZMT3-Phantom 2 works with 3.3V lavalier mics as well as condenser, dynamic or ribbon microphones.

Perfect for boom pole operation, the ZMT3-Phantom 2 is to be positioned at top of the boom pole directly behind the microphone instead of near the bottom. By removing the internal or external cable, operators can eliminate any cable noise that can leak into the audio track.

A balanced 3-pin LEMO provides input connectivity.

Encrypted Audio

The ZMT3-Phantom 2 transmits using 100% digital modulation resulting in audio that’s fully encrypted. Digital encryption is the only way to keep all audio transmission private. A digital transmission also provides audio quality far superior to an analog system.

Internal Recording

Audio can be recorded internally to a microSD card using the highly reliable lossless MARF (Mobile Audio Recording Format) which eliminates file corruption common to recordings due to dead battery or early card removal.

Better Workflow

The ZMT3-Phantom 2 provides a 110 dB dynamic range with no limiting or compression distortion. Phantom power is selectable in 3.3V, 12V, 24V, 32V and 48V. External audio and battery status levels are easily visible for the operator.

Equipped with ZaxNet™, you can remotely change the frequency, pre-amp gain, output power or place the internal recorder in record, playback and stop modes.



RF Modulation: Proprietary Digital Method
ZMT3-Phantom .5 RF Frequency Range: 512 - 614 MHz
ZMT3-Phantom .6 RF Frequency Range: 596 - 698 MHz
RF Frequency Step: 100 KHz
RF Bandwidth in ZHD48 Mode: 50 KHz
RF Bandwidth in ZHD96 Mode: 100 KHz
RF Bandwidth in XR Mode: 200 KHz
Channel Separation in ZHD48 Mode: as close as 100 KHz (receiver dependent)
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, 50 KV2E
FCC Part: 74.861

Transmitter Audio

Dynamic Range: 110 dB
Distortion: 0.002%
Frequency Response: Mode 0: 20 Hz to 16 kHz / T
M Mode 0.2 Hz to 16 kHz
High Pass Filter: Off or 30 to 220 Hz, Steps: 10(6dB Per Octave)
Unbalanced Lavaliere Mic Power: 3.3v @ 50mA max
Balanced Mic Power: 12v @ 50mA max
Balanced Mic Power: 24v @ 10mA max
Balanced Mic Power: 36v @ 10mA max
Balanced Mic Power: 45v @ 10mA max
Mic Connector: 3-Pin Micro LEMO
Mic Configuration: Balanced / Unbalanced (2-wire)
Input Range: -60 to -30 dBu
Mic Impedance: 6.8 k Ω (680 Ω with 12v power mode)
ADC Bit-Depth: 24 Bits
ADC Sampling-Rate: 48 kHz

Timecode Reader / Generator

Timecode output: 3-Pin Micro LEMO
Clock Accuracy: 1.54 PPM (1 Frame Out in 6 Hours)
Timecode Type: SMPTE
Timecode Frame-Rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF

Internal Recording

Media: MicroSD Card (Flash Memory)
File Format: .ZAX / Converts to BWAV or MP3

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


Weight: 2.2 oz / 62 grams with Battery
Dimensions (H x W x D): 2.2″ x 1.6″ x .55″ / 55.8mm x 40.6mm x 14mm
Display: Graphic OLED


Power Output: 25 / 50 / 75 mW – Software Selectable
Battery Type: NP-50
Battery Life: Up to 5 Hours, microphone dependent