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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 T
Transett 904 T
An FM transmitter which is durable, easy to use, and with excellent sound quality. Equipped with a built-in microphone and input for external microphone. Several channels makes it possible for different groups to communicate simultaneously. The set channel is clearly indicated and cannot be changed by mistake.
Last updated July 7, 2008
Ordering number: 411 04 40
Radio frequency: 35-50 MHz.
Output: 10 mW.
Channels: 16, PLL controlled.
Channel spacing: 200 KHz.
Modulation: FM.
Pre-emphasis: 50 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.
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