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PART VI - APPENDIX
VI
2 Specifications
Carrier frequency range
Modulation
Audio bandwidth
Frequency stability (-10°C to
+50°C)
Rated deviation
T.H.D. at 1 kHz
Compander
Signal/noise ratio
RF output
Current consumption
Power requirement
Battery life
Audio input level for rated
deviation
Input impedance
Condenser mic power supply
Audio outputs
Headphone output:
Size (WxDxH)
Net weight
HT 81
710 to 860.9 MHz
FM
50 to 20,000 Hz
±10 ppm
30 kHz
<0.5%
Yes
typ. 50 dB(A)
10 mW
150 mA typ.
2 x 1.5 V AA size
batteries
>12 hours
350 mV/1 kHz
220 kΩ
-
-
length: 240 mm (9.4 in.)
dia.: 36 mm (1.4 in.)
245 g (8.7 oz.)
PT 81
710 to 860.9 MHz
FM
50 to 20,000 Hz
±10 ppm
30 kHz
<0.5%
Yes
typ. 50 dB(A)
10 mW
180 mA typ.
2 x 1.5 V AA size
batteries
>10 hours
1400 mV/1 kHz
220 kΩ//320 pF
6 V/6.8 kΩ (pin 3)
-
92 x 65 x 20 mm
(3.6 x 2.6 x 0.8 in.)
76 g (2.7 oz.)
PR 81
710 to 860.9 MHz
FM
50 to 20,000 Hz
±10 ppm
-
<0.8%
Yes
>108 dB(A)
-
-
2 x 1.5 V AA size
batteries
>6 hours
-
-
-
Unbal. LINE (pin 2):
-6 dBm (600 Ω)
Pin 3: 30 mW typ.
(16 to 100 Ω)
92 x 65 x 20 mm
(3.6 x 2.6 x 0.8 in.)
80 g (2.8 oz.)