Instructions for Use
Page 14
... stethoset receiver which require two-channel transmission, e.g. P RI 250 Infra-red mono stethoset receiver, designed for use as a personal sound amplifier for use in conjunction with a hearing aid for the IS 500 infrared stereo transmission system. 14 P RI 500 Infra-red stereo stethoset receiver, designed for connecting a Sennheiser headphone or an induction coupler. THANK YOU...
... stethoset receiver which require two-channel transmission, e.g. P RI 250 Infra-red mono stethoset receiver, designed for use as a personal sound amplifier for use in conjunction with a hearing aid for the IS 500 infrared stereo transmission system. 14 P RI 500 Infra-red stereo stethoset receiver, designed for connecting a Sennheiser headphone or an induction coupler. THANK YOU...
Instructions for Use
Page 20
... usual. 20 ceived (carrier frequency 2.3 MHz). P With the switch set to position "II", only the signal from channel 1 is received (channel 1 right, channel 2 left). This mono signal is supplied to position "∞", a stereo signal is re- Channel selector switch on the HDI 302 The HDI 302 stethoset receiver features a channel selector...
... usual. 20 ceived (carrier frequency 2.3 MHz). P With the switch set to position "II", only the signal from channel 1 is received (channel 1 right, channel 2 left). This mono signal is supplied to position "∞", a stereo signal is re- Channel selector switch on the HDI 302 The HDI 302 stethoset receiver features a channel selector...
Instructions for Use
Page 22
...Use the receiver in the unlikely event that any repairs should be necessary, Sennheiser service departments worldwide give moderately priced, fast and competent repairs. Technical Data 302 RI 250 (all variants) RI 500 / HDI Modulation FM, mono FM, stereo Carrier frequencies 2.3 MHz 2.3 MHz / 2.8 MHz AF frequency... level 130 dBA 130 dBA / 126 dBA Special technical Data Audio output on the RI 250-S and Induction loop output on the RI 250-J 750 mV / 32 Ω SENNHEISER TECHNOLOGY AND SENNHEISER SERVICE ARE FUTURE-ORIENTED Even after many years to -noise ratio typ. 70 dB ...
...Use the receiver in the unlikely event that any repairs should be necessary, Sennheiser service departments worldwide give moderately priced, fast and competent repairs. Technical Data 302 RI 250 (all variants) RI 500 / HDI Modulation FM, mono FM, stereo Carrier frequencies 2.3 MHz 2.3 MHz / 2.8 MHz AF frequency... level 130 dBA 130 dBA / 126 dBA Special technical Data Audio output on the RI 250-S and Induction loop output on the RI 250-J 750 mV / 32 Ω SENNHEISER TECHNOLOGY AND SENNHEISER SERVICE ARE FUTURE-ORIENTED Even after many years to -noise ratio typ. 70 dB ...