PO Box 319
Cabin John, Maryland 20818
Phone: 301-229-3628
Fax: 301-229-0289


The mini TX Transmitter

The miniTX wireless microphone transmitter is designed for modern stage, studio, and location sound recording. Comfortable and easily hidden even in tight costumes, it is a favorite of the artists and costumers as well as the professional sound recordist.

The miniTX is small, robust and moisture resistant against sweat when worn close the body. Measuring 82mm high by 48mm wide by 16.5mm deep (3 ¼ x 1 7/8 x 5/8 inches), it weighs only 90 grams (3.2oz) -- including batteries.

It can be switched On/Off, frequencies checked and changed, microphone gain adjusted and battery status monitored with the included SwitchIR infrared controller or with a Palm Pilot using free software. It can also be switched On/Off through clothing with the Control-X. The miniTX has up to 32 pre-programmed frequencies, with a switching bandwidth of up to 24MHz (the equivalent of 4 US TV channels). The miniTX runs for up to 5 hours on 2xAAA 1.5v alkaline batteries or up to 10 hours with lithium batteries.

All Audio Ltd. transmitters are designed to work with the microphone of your choice. Our technical department is available to answer any questions. (Email us at: evan@macarthurgroup.com)

miniTX Specifications
Frequency range 470 – 1000MHz
Number of frequencies 32 pre-programmed
Switching Range Up to 24MHz
Output power 25mW typical
RF output connector SMA 50 Ohms
Audio input connector 4 pin Lemo™ (Other variant available - 3 pin Lemo™)
System frequency response 50Hz – 18kHz ±dB
System THD measured at 1kHz <0.1% at working levels.
<0.3% at gain position 9 with -6dB input in overload
Gain control range 30dB in 8 steps
Maximum input level 0dBV gain position 2
Indicators Red LED to indicate overload. Flashing orange LED to indicate standby mode. Static orange LED for low battery
Battery required 2 x AAA (LR03) 1.5V type alkaline
Battery life Typically 5 hours with alkaline type batteries, longer with Lithium type
Other The miniTX can be switched On/Off, frequencies changed and battery status checked remotely using the SwitchIR.
It can also be switched On/Off through clothing via the Control-X.
Size 82 (h) x 48 (w) x 16.5 (d) mm
Weight 90g (3.2 oz) including batteries
Operating temperature -20°C to +55°C (-4° to 13°1F)
Compliant to R&TTE (CE), FCC
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