PR-72b
Personal Companion
Receiver

The PR-72b Companion receiver is a high performance miniature receiver. And due to its excellent performance and many available options, this versatile receiver may be used for many applications — IFB and professional studio communications, personal cueing, industrial communications, and individual auditory assistance, to name a few. Also, because of its extended frequency response and low noise level, the PR-72b is a convenient receiver to use with portable tape recorders.

The PR-72b incorporates the latest state-of-the-art technology offering low power consumption for longer battery life (up to 40 hours). Special features include an LED battery condition indicator, automatic on/off power switch, battery charging access through the output jack, slide-open battery compartment, and no external antenna — only the output cable extends from the receiver.

The following options are also available: plug-in channel selector, external microphone input for specialty applications, switch for two-channel operation and an independent on/off switch. Moreover, the PR-72's small size and light weight make it easy to carry in a pocket or pouch.

SPECIFICATIONS

Audio Outputs: 2.5 volts RMS, adjustable volume control nominal load 50-600 ohms (100 ohms nominal)

Connectors: 1/8" mini jack (locking plug optional)

Indicators: LED battery condition indicator

Audio Frequency Response: 100 Hz to 10 kHz with M-72 transmitter

Operating Radio Frequency: Single channel, 50-215 MHz

Frequency Stability: .005% crystal controlled

RF Sensitivity: 1 µV for 20 dB of quieting

Adjacent Channel Rejection: -55 dB with 50 kHz channel spacing (72-76 MHz)

Image and Spurious Response: At least -60 dB (72-76 MHz)

Ultimate Quieting: Better than -65 dB related to output

Bandwidth Acceptance: Up to 30 kHz deviation

Antenna: Intergral with output cable (no external antenna)

Current Drain: 14 mA nominal

Battery: 9 volt alkaline Eveready 522 or equivalent or optional 9 volt nickel-cadmium rechargable battery

FCC Compliance: Certification under Part 15

Dimensions: 1 1/16" X 2 1/4" X 3 1/4" (27 mm X 57 mm X 83 mm)

Weight: 4 ounces (110 grams) approx.

• Special Features:
• Charging access through output jack for use with NBC 9-2R battery conditioner or NBC 9-12 nickel-cadmium battery charger
• Automatic receiver turn-off if output plug is removed
• LED battery indicator
• Plug-in channel selector

For more information on the PR-72b Personal Companion Receiver or COMTEK's comprehensive line of high quality wireless sound products, e-mail us or give us a call at (801) 466-3463. Our applications engineers will be happy to work with you.

357 West 2700 South / Salt Lake City, Utah 84115

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