Comtek PR-75a Operator's Manual download pdf (Page 13)

PR-75a SPECIFICATIONS

Page 11

Audio Output:

Headset output 200 mW average

(Impedance as low as 16 ohm)

Connectors:

Mono 3.5 mm audio output

connector and charging input.

2.5 mm connector for I/O

data programming.

Indicators:

Multi-function LED

a. Channel-seeking

b. Received signal

c. No signal

d. Low battery (also audible beeping)

Controls:

Volume control (50 dB range)

Automatic turn-on when headphone

is plugged in and turn-off when

headphone is removed.

One-button tuning control (AST)

Audio Frequency Response:

100 Hz to 10 kHz ±3 dB

Harmonic Distortion:

Less than 1% (1kHz tone 30 kHz

deviation)

Operating Radio Frequency:

72 to 76 MHz

Frequency synthesized 10-channel,

AutoSmart-Tuning

TM

(AST)

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Frequency Stability:

0.002% frequency synthesized

crystal controlled

RF Sensitivity:

1.3 µV for 38 dB of quieting

(average)

Ultimate Quieting:

Better than 75 dB related

to output

F.M. Modulation Acceptance:

Non-Companded F.M.

Deviation up to 40 kHz

Antenna:

Integral with headphone cable

(no external antenna)

Battery Life:

100 hours with alkaline batteries

Power Requirements:

2 AA 1.5 volt alkaline batteries

or rechargeable Ni-MH

(NH 1700)

FCC Compliance:

Complies with Part 15

of FCC rules for scanning

receivers.

Dimensions:

1

1

/16" x 2

1

/2" x 3

1

/4 "

(27 mm x 57 mm x 83 mm)

NOTE: Specifications subject to

change without notice

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