AKG PR 81 UHF Portable Wireless Receiver SPREJEMNIK MIKROFONA

f= 777,600 do 780,400 MHz

- MIKROFONSKI SPREJEMNIK ZA MOBILNO KAMERO
- MIKROFONSKI SPREJEMNIK
- IN EAR SPREJEMNIK

PR 81Portable Wireless Receiver
Description
Traditionally, the video taping of a roving announcer with a
microphone has required an audio cable to the video camera.
This practice limits the range of camera movement, making it
difficult for the announcer to move around during field
assignments. The PR 81 solves this problem by providing a
small receiving unit that can be strapped to the battery-
powered camera, giving both camera operator and
announcer complete freedom to move about as needed. In
typical use, the announcer’s microphone is received by the
stationary receiving station; at the same time, a PR 81
mounted on the video camera provides local audio feed to
that camera. A manual squelch control is necessary because
of the high RF environment in which the PR 81 may be used.
The PR 81 is a small unit weighing only 2.8 ounces, and as
such the video camera operator will hardly be aware of it.
The unit operates on the true diversity principle and has all of
the control functions that are found in the SR 81.
Features
• Eliminates dependence on
wired microphones
• True diversity reception for best
audio performance
• Operates over UHF range from
710 to 732.2 MHz
• Very small size and weight
• Battery life in excess of 6 hours

PR 81Portable Wireless Receiver
Description
Traditionally, the video taping of a roving announcer with a
microphone has required an audio cable to the video camera.
This practice limits the range of camera movement, making it
difficult for the announcer to move around during field
assignments. The PR 81 solves this problem by providing a
small receiving unit that can be strapped to the battery-
powered camera, giving both camera operator and
announcer complete freedom to move about as needed. In
typical use, the announcer’s microphone is received by the
stationary receiving station; at the same time, a PR 81
mounted on the video camera provides local audio feed to
that camera. A manual squelch control is necessary because
of the high RF environment in which the PR 81 may be used.
The PR 81 is a small unit weighing only 2.8 ounces, and as
such the video camera operator will hardly be aware of it.
The unit operates on the true diversity principle and has all of
the control functions that are found in the SR 81

Specifications
Receiver type: Diversity
Carrier frequency range: 710 MHz to 737.2 MHz
Antenna inputs: 2 permanently attached
1/4 wave diversity antennae
Modulation type: FM
Input sensitivity: Typical -95 dB
Squelch threshold: Manual adjustment
Audio bandwidth: 50 to 20,000 Hz
THD at 1 kHz: 108 dB (A-weighted)
Audio outputs: Unbalanced line (pin 2): -6 dBm into
600 ohms
headphones (pin 3): 30 mW into 15
to 100 ohms
Battery life: >6 hours (2 x 1.5V AA)
Dimensions: 3.625 x 2.462 x .812 in.
(92 x 65 x 20 mm)
Weight: 2.8 ounces (80 g)
Standard Accessories: PR 81/880/*: Portable receiver with
handheld transmitter and D 880
microphone capsule w/hard plastic
case
PR 81/417/*: Portable receiver with
pocket transmitter and C 417 Lavalier
microphone w/hard plastic case
Both sets include 1/8” and XLR
camera audio inputs and a “Y”
adapter for headphone use