Air traffic management headset HD-90-E

for air traffic controllerscordedlightweight

Lightweight headset with electret microphone parallel, 200 Ohms per receiver capsule • For voice transmission in radio communications and telephony • Electret microphone • Swivel-mounted flexible microphone arm • Three-piece adjustable headband, superb comfort • Soft ear cushions • Washable ear cushion covers • Suitable for TETRA This headset can be delivered also with a LEMO plug for our standardised Holmberg Interface. For this version, a wide range of adapter cables with PTT is available. Housing................................................................ shock-proof plastic housing Colour.................................................................. black Weight without cable......................................... approx. 110 g Terminals............................................................. coiled cord, black, length approx. 0.9 m, straight approx. 2 m, ends tinned Degree of protection..........................................IP 30 Temperature range opération:.......................-20 °C up to +60 °C storage:...........................-20 °C up to +60 °C Acceptable relative humidity.............................< 93 % Microphone Electroacoustic principle........ electret Directional characteristic....... supercardioid Free-field nominal sensitivity 8 mV/Pa Close-talking sensitivity......... 8 mV/Pa Nominal output impedance.. 2 kfi up to 6 k£2 Acceptable terminal voltage 1.5 V up to 8 V Current drain.................... 0.15 mA up to 0.45 mA