Tech Focus: Bodypack Transmitters, Part 2 - A Look at the Leaders

Tech Focus: Bodypack Transmitters, Part 2 - A Look at the Leaders The devices are becoming smaller, tougher, and increasingly flexible By Dan Daley, Audio Editor

Thursday, January 4, 2018 - 7:50 am

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With burgeoning demand for putting on-field audio on the air for sports broadcasts, the selection of RF bodypack audio transmitters and their capabilities are also growing. Here's an overview of some of the leading current models.

CLICK HERE for Tech Focus: Bodypack Transmitters, Part 1 - A Growing Role in Sports Sound.

Audio-Technica AEW-T1000a UniPak

Audio-Technica

The AEW-T1000a UniPak bodypack transmitter features an LCD display, soft-touch controls, and field-replaceable helical and flexible-wire antennas. It has a four-pin locking connector and offers both low- and high-impedance inputs plus a bias connection, for use with dynamic and electret condenser microphones and with Hi-Z instrument pickups. Switchable RF power provides eight hours of battery life in the high (35 mW) setting and 10 hours in the low (10 mW) setting (two AA alkaline batteries). A three-position sliding control cover prevents accidental shutoff/channel-switching. www.audio-technica.com/

Electro-Voice

The WTU-2 is a compact metal bodypack solution for the RE-2 system. Automatically compatible with the Telex RSB-2 mute switch for football applications, it offers selectable RF output power and rechargeable AA battery operation with optional BH-200 charger. The unit is compatible with the RSB-2 referee mute switch.

BPU-2 is a compact bodypack transmitter for the RE-2 wireless system. It is made from high-impact ABS plastic. The single on/off switch also functions as a mute, and the TA4 microphone connector is compatible with any EV lapel and head-worn microphones, including the RE97Tx and RE97-2-Tx. Other features include a cellphone rotating belt clip and a smart battery. www.electrovoice.com/

Lectrosonics SMWB and SMDWB

Lectrosonics

The DBa digital encrypted beltpack transmitter features AES 256-bit CTR encryption, wideband tuning (470-698 MHz), a highly linear RF-output stage for reduced intermodulation distortion,. and true 50-mW transmission RF power for excellent range and resistance to dropouts. A multifunction switch can be configured for mute or power, making the unit flexible, and the device provides 24-bit/48-kHz digital audio for pristine sound quality.

The SSM (Super Slight Micro) digital hybrid wireless micro transmitter tunes across 76.8 MHz or three standard Lectrosonics frequency blocks, features power settings at 25 or 50 mW RF power, and runs on a rechargeable lithium-ion battery. It measures 2.52 x 1.48 x 0.57 in. and weighs 2.3 oz., including battery. The SSM responds to RM remote commands, compatible with the Lectro RM smartphone app. Frequency bands offered are A1 (470-537 MHz), B1 (537-614 MHz), C1 (614-691 MHz), and D1 (691-767 MHz, export only).

The SMWB (single AA) and SMDWB (dual AA) transmitters tune across 76.8 MHz or three standard Lectrosonics frequency blocks and come in several frequency ranges. RF power is selectable at 100, 50, or 25 mW. The SMWB and SMDWB feature the standard TA5 connector, with servo-bias mic input also found on all previous SM Series units and all current TA5 beltpack units. The SMWB and SMDWB units can be configured as either a transmitter or a recorder, with files stored on Micro SD card memory in the industry-standard Broadcast Wave (.wav) format at 24 bits. The memory card can also be used to update firmware in the field. These transmitters feature IR sync for quick setup and can also be configured via RM remote commands, compatible with the Lectro RM and PDR Remote smartphone apps, for hands-free setting changes.

The WM is a water-resistant transmitter with a membrane keypad and a specially designed water-resistant machined-aluminium housing. It offers 256 synthesized UHF frequencies in 100-kHz steps in nine blocks, each covering a 25.6-MHz bandwidth. Features include selectable RF power at 50, 100, and 250 mW, dual bicolor modulation LEDs for accurate gain adjustment, and a backlit LCD for ease of use. The WM is powered by two AA batteries, with internal-switching power supplies providing constant voltages to the transmitter circuits from the beginning (1.5 V) to the end (0.85 V) of battery life. It responds to RM remote commands, compatible with the Lectro RM smartphone app, for hands-free setting changes. www.lectrosonics.com/US/

Quantum5X Systems

The new enhanced RCAS (Remote Control Audio System) behind the QT-5100 PlayerMic and QT-5100 RefMic sports transmitters features significantly increased range of RF remote control, allowing adjustment of all transmitter functions over relatively long distances without interfering with the athletes or on-air talent. New software and firmware upgrades add the ability to connect the handheld controller to a computer and use the MicControl software with an expansive GUI that facilitates managing multiple transmitters, in addition to the existing remotely controlled on/off, frequency, mute/live, mic-gain, group-commands, companding-modes, and RF-transmit-power (10-250 mW) functions.

The QT-5100 family of wideband remotely controlled transmitters are designed for sports applications and are frequency-agile from 470 to 700 MHz with 3,000 selectable channels across 75-MHz blocks in 25-kHz steps. Currently, there are five models of the QT-5100: QT-5100 Incognito, QT-5100 AquaMic (waterproof), QT-5100 RefMic (with integrated non-popping mute switch), QT-5100 PlayerMic, and QT-5100 PlayerMic S. The QT-5100 PlayerMic S is the smallest remote-controlled PlayerMic to date and features a soft, tough, sweat-proof, flexible polymer enclosure measuring 3 x 1.5 x 0.4 in. and a run time of 3.5 hours at a 50-mW RF-transmit-power setting.

The manually controlled QT-300 series

LINK:	https://www.sportsvideo.org/2018/01/04/tech-focus-bodypack-transmitter...
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