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ALD Division
© GN ReSound ALD Division 2004
Any issues relating to the EU Medical Device Directive 93/42/EEC should be directed to GN ReSound A/S.
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Transett 904 TU
Transett 904 TU
Transett 904 TU is identical to Transett 904 T, but it has a built-in directional microphone, which is excellent for noisy environments. Transett 904 TU is often used in guiding situations.
Last updated February 21, 2008
Ordering number: 411 04 45
Radio frequency: 35-50 MHz.
Output: 10 mW.
Channels: 16, PLL controlled.
Channel spacing: 200 KHz.
Modulation: FM.
Pre-emphasis: 90 μs.
Frequency swing: Max ±35 KHz, ±15 KHz at 90 dB SPL to built-in microphone. Microphone sensitivity can be adjusted ±10 dB.
Frequency deviation: <100 ppm.
Limiting: Knee point at 15 KHz swing. Increases the input signal by 20 dB, increases the swing by about 4 dB.
Distortion: <0.5% at 90 dB SPL, <3% at 115 dB SPL.
Microphone input: 3.5 mm stereo jack, non-standard connection: tip-signal, ring-signal, earth-earth.
Microphone type: Directional microphone.
Power source: Rechargeable NiMH cells, nominal voltage 6 V.
Charging time: Approx. 14 hours.
Operating time: >12 hours.
Dimensions: 120 x 46 x 25 mm.
Weight (incl. battery): Approx. 145 g.
Technical data