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Specifications
PT81 bodypack transmitter:
Audio bandwidth:
50 Hz to 20 kHz
Modulation method:
FM
Radiated RF power:
10 mW
Frequency stability:
±10 ppm
Antenna:
Flexible, quarter-wave wire
Rated deviation:
±30 kHz
Signal-to-noise ratio:
Typical 50 dB (A weighted)
Input impedance:
220 kohms, 600 pF
Audio input:
Mini 3-pin XLR; 1400 mV for
rated deviation at 1 kHz
Phantom powering:
Pin 3: 6 V/6k8 ohms
Current consumption: 170 mA/2.4 V
Power requirement:
2 AA 1.5V batteries
Battery life:
>8 hours
Dimensions:
3.62 x 2.56 x 0.79 in.
(92 x 65 x 20 mm)
Net weight:
3.04 oz. (76 g) without batteries
HT81 handheld transmitter:
Type, bandwidth and polar pattern:
See individual microphone
specification sheets
Modulation type:
FM
RF radiated power:
10 mW
Rated deviation:
±30 kHz
Signal-to-noise ratio:
Typical 50 dB (A-weighted)
Current consumption: <150 mA/2.4 V
Power requirement:
2 AA size 1.5V batteries
Battery life:
>10 hours
Dimensions:
1.4 x 9.4 in dia. (36 mm x 240 mm)
Net weight:
9.8 oz. (245 g)
AKG Acoustics, U.S. • 1449 Donelson Pike • Nashville • TN 37217 • Tel: (615) 360-0499 • Fax: (615) 360-0275
SR81 receiver:
Receiver type:
Antenna inputs:
Modulation type:
Input sensitivity:
Squelch threshold:
Audio bandwidth:
THD at 1 kHz:
Signal-to-noise
Audio output:
Current consumption: 220 mA typical
Power requirement:
Dimensions:
Net weight:
Accessories:
PS81:
RA81B:
PSU01:
SRA-1:
CCS-1:
Hard Case CH60:
UAM1:
Visit our Web Site at www.akgusa.com
Diversity
2 x 50-ohm BNC sockets
FM
Typical -95 dBm
Automatic, using pilot tone (32.678 kHz)
50 to 20 kHz
<0.4% at rated deviation
Typical 100 dB (A-weighted)
Balanced XLR-M, mic/line level
switchable, typical 30 dB unbalanced:
1.4" jack: 0 dBm XLR: 6 dBm
11 to 15 V dc or ac from
external power supply
8.27 x 6.7 x 1.65 in.
(210 x 170 x 42 mm)
18.8 oz. (470 g)
Active, wideband antenna splitter for
connecting up to 4 SR81 units or 3
SR81 units and one additional PS.
External receiver antenna with
integrated booster, powered via cable
from the PS61 antenna splitter.
Central power supply unit for PS61 and
PS81 splitters.
External directional antenna
Color code indicators for easy channel
recognition.
For carrying a single complete system
Universal antenna mount for moving
the antennas for 1 receiver to the front
of the rack.
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