Communications Headset  (190-0312)    Specifications   Faxback Doc. # 15166
with VOX

Power Supply....................................1.5 Volts (One AAA Battery)
Current Drain:
   VOX Operation........................................................2mA
   PTT Operation....................................3.0 mA with PTT Pressed
Battery Life...............................About 500 hours of VOX Operation
                                                      No Drain with PTT Off
Microphone:
   Type.................................................Electret Microphone
   Directionality............................................Unidirectional
   Plug Size....................................................3/32 - Inch
   Impedance.......................................................2.2 kOhm
Speaker:
   Plug Size.....................................................1/8 - Inch
   Impedance..................65 Ohms (Compatible with 8-Ohm Earphone Jack)
Sensitivity......................................90 dB SPL (at 1 kHz, 1 mW)
VOX Activation Time................................Less than 5 Milliseconds
                                  (Some transceivers have additional delay)
VOX Recovery Time.........................................About 0.8 Seconds
                                  (Some transceivers have additional delay)
VOX Sensitivity:
   VOX L..........................................................93 dB SPL
   VOX H..........................................................83 dB SPL

Specifications are typical:  individual units might vary.  Specifications
are subject to change and improvement without notice.


(TE/all-05/05/95)