
ATW-T210a
Frequency-agile UHF UniPak®  Body-pack Transmitter
Features
• 
Rugged housing with a reversible clothing clip
• 
Recessed locking HRS-type microphone input connector
• 
LED “on” indicator 
• 
10 compatible user-switchable channels in one of two UHF 
 frequency ranges
• 
Microphone or line input with DC bias voltage
• 
Internal channel selector switch
• 
Internal trim controls for mic and line inputs
• 
Integrated two-position top-mounted power/mute switch
• 
Digital Tone Lock™ to identify the wireless transmitter to the receiver
• 
Operates on two AA batteries
• 
Field replaceable whip antenna
Description
The ATW-T210a wireless UniPak 
high-impedance input connections along with a DC bias voltage connection for use with dynamic and electret condenser microphones as well as 
Hi-Z instrument pickups. Separate input trim controls are provided for 
each input along with a ten-position channel selector switch. All adjustment controls are hidden behind the transmitter’s battery door and an 
adjustment tool is provided with the transmitter. A locking 4-pin HRS-type 
input connector is provided for both inputs. The connector is recessed to 
protect the connection and input cable. Sophisticated Tone Lock 
squelch eliminates the need for a separate mute button allowing the 
two-position, positive-action mechanical switch to function for both 
power and mute. The switch is located on the top of the transmitter  
for easy access and can be operated without looking at the transmitter.  
An RF power select switch offers high and low settings. A battery 
condition indicator shows that the batteries are good. The transmitter 
operates on two standard AA batteries providing over eight hours of 
continuous operation. Constructed of rugged high-impact materials, the 
transmitter incorporates a latching captive battery door, eld replaceable 
antenna and reversible belt clip.
Architect’s and Engineer’s Specications
The frequency-agile FM wireless body-pack transmitter shall be part of  
a wireless system offered in two UHF bands, 656.125– 678.500 and 
487.125– 506.500 MHz. The body-pack transmitter shall have inputs for 
microphone and line level inputs. It shall provide DC voltage to power 
microphones requiring DC bias. The body-pack transmitter shall have a 
reversible clip allowing for up or down cable entry. A two-position 
positive-action mechanical power/mute switch operable without looking at 
the transmitter shall be provided. Transmitters using separate mute and 
power buttons shall be unacceptable. The transmitter shall have a recessed 
input connector and illuminated indicator to indicate battery condition. Ten 
selectable channels shall be available. Channel selection shall be via a 
recessed rotary selector and the proper tool shall be included with the 
®
 body-pack transmitter has both low- and 
™
 tone 
2000 series wireless systems
transmitter. The device shall have an LED indicator when it is turned on. 
There shall be individual trim adjustments on each input. The transmitter shall 
include a Tone Lock™ to identify the wireless transmitter to the wireless 
receiver. This transmitter shall operate on two AA batteries and provide an 
RF power select switch with high and low settings. All channel settings and 
level adjustments shall be hidden behind a latching cover to prevent 
unnecessary access. The transmitter shall have a removable and eld 
replaceable antenna.
The FM wireless transmitter shall be an Audio-Technica ATW-T210a  
or equivalent.
Specications
RF power output (50 ohms)
Spurious emissions
Input connection
Batteries
Battery life
Dimensions
Net weight
In the interest of standards development, A.T.U.S. offers full 
Audio-Technica Corporation 
audio-technica.com   ©2014 Audio-Technica  0001-0033-02
details on its test methods to other industry 
Specications are subject to change without notice.
professionals on request.
High: 30 mW, Low: 10 mW 
Following federal and national regulations 
Four-pin locking connector 
Pin 1: GND 
Pin 2: INST INPUT 
PIN 3: MIC INPUT 
PIN 4: DC BIAS +9V 
Two 1.5V AA alkaline (not included)  
or two 1.2V AA NiMH (not included)  
Recharging power for NiMH batteries  
(with ATW-CHG2) 
U.S./Canada/Latin America: 3.2 V DC 
Other world areas: 3.2 V DC 
- - -
- - -
 320 mA x2
 230 mA x2 
High: 7 hours (alkaline), Low: 9 hours (alkaline) 
Depending on battery type and use pattern
66.0 mm (2.60") W x 22.5 mm (0.89") D x 
92.3 mm (3.63") H 
81 g (2.9 oz), without batteries