World’s Smallest x2

The QT-256® Dual is two completely independent QT-256® audio transmitters, each with it’s own battery and internal antenna, packed into an unobtrusive aluminum housing roughly the size of a deck of cards.

Complete Redundancy

Tune each transmitter to a different frequency to broadcast on two separate channels, if there is any sign of interference on one channel, you’ve got a fallback.

Peace of Mind

The Dual was developed for high profile live events. It is used by referees in the Superbowl and conference speakers like Bill Gates.

QT-256® Tech

The QT-256® Dual high quality broadcast audio transmitter has the same reliable electronics and uncompromising quality as the QT-256®.

Includes:

Wall power charger with LEMO connector, 1/4 whip antenna, manual, and Q5X one year warranty

Technical Data
Dimensions: 90mm x 61mm x 17mm
Weight: 108g including batteries
RF output power: 50 to 250 mW (factory configured)
Number of channels: 256
RF frequency range: 600 to 698 MHz
Switching bandwidth: 25MHz (100 KHz steps)
Modulation: FM
Nominal deviation: – +/- 40 kHz
Peak deviation: +/- 54 kHz
Pre-emphasis: 50 us
Compander: Q5X DCS-QT
Signal to Noise: 110dB (A) rms
Frequency stability: +/- 0.001%
Spurious Emission: <- 60 dBc
Total harmonic distortion (THD): 0.3% at nominal deviation
Frequency response: 20 Hz to 20,000 Hz
Specific Absorption Ratio (SAR): 0.68 W/Kg
Audio connector: 4 pin lemo x2
Antenna: internal
Battery: Internal Lithium x2
Operating time: (Battery) estimated 8 hrs @ 100mW
Operating Temperatures: -10c to +45C
Approvals: FCC, CE, Industry Canada