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Zaxcom - TRXLA3 ZHD

Zaxcom - TRXLA3 ZHD
Zaxcom - TRXLA3 ZHD
Product Code: TRXLA3

Available Options

* Zaxcom Blocks .5 or .6:

* Zaxcom TRXLA3 Mono/Stereo:

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The TRXLA3 with ZHD technology is a body-pack transmitter designed specifically for enhanced transmission distance, widened tuneable frequency range, and seamless integration with Zaxcom’s mixer/recorders, wireless receivers, and IFB’s via ZaxNet’s 2.4GHz RF. With ZaxNet, you can remotely control transmitter gain, frequencies, transport controls with backup micro SD recording, and output power save levels. Zaxcom's ZHD high density modulation technology will allow more frequencies to fit within a smaller bandwidth space without creating RF intermodulation. This not only allows the availability of more usable frequencies, but also greatly increases the range of the transmitter. Manufactured to be lightweight and rugged, the LA3 nylon polymer housing is strong, impact resistant, and protective from both corrosion and water damage.  


The TRXLA3 is also available in a four block range (TRXLA3.5: Blocks 20 - 23 (512 - 614MHz) or TRXLA3.6: Blocks 23 - 26 (596 - 698 MHz) and a stereo model (TRXLAS3.5 or TRXLAS3.6) which can receive two mic sources into one transmitter via single 3-pin LEMO connection. Note: ZHD will only work in mono mode.


*ZHD mode will not be available when transmitter is set to stereo.

*ZHD mode spacing varies based on receivers used.


RF Modulation

Proprietary Digital Method

TRXLA3.5 RF Frequency Range

512 - 614 MHz


TRXLA3.6 RF Frequency Range

596 - 698 MHz


RF Frequency Step

100 KHz

RF Bandwidth in ZHD mode

50 KHz

Channel Separation in ZHD mode

as close as 100 KHz (receiver dependent)

Antenna Connector

50 Ω SSMA Female

Emission Designator

180 KV2E, 100 KV2E, 50 KV2E

FCC Part



Transmitter Audio

Dynamic Range

126 dB (Stereo model 106 dB)



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 (6 dB Per Octave)

Mic Power

3.3 VDC

Mic Connector

3-Pin Micro LEMO

Input Range

-60 to -30 dBu

Mic Impedance

6.8 k Ω

ADC Bit-Depth

24 Bits

ADC Sampling-Rate

48 kHz


Timecode Reader / Generator

Clock Accuracy

1.54PPM (1 Frame Out in 6 Hours)

Timecode Type


Timecode Frame Rates

23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF


Internal Recording


MicroSD Card (Flash Memory)

File Format


Recording Time

96 Hours (16 GB card)


2.4GHz 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


-96 dBm




3.6 oz with batteries

Dimensions (H x W x D)

3.0x 2.4x .65


Graphic OLED



Power Output

25 / 50 / 100 mW Software Selectable

Battery Life

Up to 7 Hours with 2 Lithium AA at 100mW

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