Wireless measurement setups let technicians move freely while taking accurate, time-aligned measurements. Below are common systems used with Smaart, focusing on models designed or adapted for precision audio measurement. All listed systems operate compander-free or with modern digital modulation suitable for measurement use.
GAODIMIC — DT228G-P Kit
The GAODIMIC DT228G-P Kit is a digital UHF wireless system developed for measurement and high-fidelity audio transmission. It supports 48 V phantom power for condenser measurement microphones and uses modern digital modulation. The DT228G-P is often bundled as part of turnkey measurement kit together with the MELLab MYc-3 microphone.
Lectrosonics — TM400 (Test & Measurement System)
The Lectrosonics TM400 is a purpose-built wireless test and measurement system. It provides 24-bit digital performance at up to 88.2 kHz, selectable phantom power (5 V / 15 V / 48 V), balanced XLR output, and long-range RF capability. It is explicitly designed for compander-free operation, ensuring full accuracy for impulse and FFT-based measurements.
MiPro — TA-80 Plug-on / ACT-800 Family
MiPro’s TA-80 plug-on transmitter and ACT-800 digital receivers are a professional combination for turning any XLR measurement microphone into a wireless system. The TA-80 provides switchable phantom power (12 V / 48 V) and operates on wide UHF digital bands. MiPro also offers multi-channel receiver modules suitable for simultaneous multi-mic setups.
Sennheiser, Shure, Line 6 and RØDE (Context)
Systems from Sennheiser (EW-D / EW-DP), Shure (QLX-D / GLX-D+), Line 6 (XD-V series), and RØDE (Wireless Pro / II) can be adapted for measurement when used with suitable plug-on transmitters or phantom-power accessories. Always verify that the specific model runs in a digital, compander-free mode before relying on it for impulse or phase-coherent measurements.
Why Compander-Free or Digital Transmission Matters
Accurate acoustic measurement—especially impulse response, delay, and dual-channel FFT analysis—demands a linear, time-coherent signal path. Legacy analog wireless systems used companders (compressor/expander) that alter phase and dynamic response, making them unsuitable for measurement. All systems listed above are either fully digital or digital-hybrid and maintain un-companded linear transmission.
Summary Table
| System | Type | Phantom Power | Compander-Free | Notes |
|---|---|---|---|---|
| Lectrosonics TM400 | Digital UHF | 5 / 15 / 48 V | Yes | Purpose-built measurement system, 24-bit/88.2 kHz |
| GAODIMIC DT228G-P Kit | Digital UHF | 48 V | Yes | Compact, linear response |
| MiPro TA-80 / ACT-800 | Digital UHF | 12 / 48 V | Yes | Plug-on transmitter with multi-channel receivers |
| Sennheiser EW-D / EW-DP | Digital UHF | With adapter | Yes | Pro-grade wireless, high dynamic range |
| Shure QLX-D / GLX-D+ | Digital UHF / 2.4 GHz | With adapter | Yes | Reliable and service-friendly |
| Line 6 XD-V Series | Digital 2.4 GHz | With battery adapter | Yes | Proven live-sound workhorse |
| RØDE Wireless Pro / II | Digital 2.4 GHz | No | Yes | Convenient for quick frequency-response checks only |
Final Thoughts
Whichever system you choose, always verify that transmission is digital and uncompanded to maintain time and phase accuracy.
The summary was created by an AI service from ChatGPT. The content has been quality-checked by TZ AUDIO before publication.
TZ`s Comment
My personal preference is the GAODIMIC DT228G-P combined with either a MELLab MYc3 or a TX-3 (same mic as the MŸc-3 just that the mic pre-amp is in a separate XLR housing. This make the TX-3 a very compact a light solution.
Field Application Example – Border Collie “Einstein” as Measurement Assistant
In large venues or outdoor measurement sessions, relocating microphones efficiently between measurement points can be both time-consuming and physically demanding. To streamline this process, I have experimented with a trained animal — most notably my Border Collie named Einstein — to assist in positioning a wireless microphone.
Einstein is trained to carry and place a lightweight, shock-isolated microphone mount using a soft harness system. Under my supervision, he moves precisely to predefined locations on stage or audience areas. This allows the me to gather data at many points in the “room” more quickly.
His body minimises ground refections on to of it all. Perfect!