Samson CR4 Spécifications télécharger pdf (Page 39)

Specifications

Transmitter / Emetteur / Sender / Transmisor (CT4L, CT4G and HT4):

Transmission Mode Frequency modulation, 80KF3E, 20 kHz peak deviation

Frequency Range 173.60 MHz to 216.20 MHz, 5 frequencies

OSC System Crystal controlled, x9 multiplication

RF Power 20 mW (USA models), 10 mW (European models)

Operating Range 300 ft.

Frequency Stability ± 10 ppm

Approvals Complies with ETS 300 422 and FCC Part 74

Radiating Harmonic and Spurious Emission Below limits of applicable regulations

Antenna Type Integral with input cable (CT4L, CT4G), Internal (HT4)

Audio Frequency Response 40 Hz to 16 kHz ±3 dB (when used with the CR4 receiver)

Pre-Emphasis 50 µSec

Noise Reduction System NE571 based compandor

Signal To Noise Ratio > 100 dB (when used with CR4 receiver)

Maximum Input Level 0 dBV (CT4L, CT4G), -20 dBV (HT4)

T.H.D. < 1% @ 1 kHz

Current Consumption 22 mA

Battery Life (MN1604 9-volt alkaline) 18 - 20 hours

Operating Temperature -10 to +55 degrees C

Controls

CT4L / CT4G Power On/Off, Mute On/Off, Level Control (Trimpot)

HT4 Power On/Off, Audio On/Off, Level Control (Trimpot)

LED Indicator Battery low

Dimensions

CT4L / CT4G 65 (W) x 22 (H) x 10 (D) mm (2.6 x .87 x .4 in.)

HT4 37 (W) x 173 (H) mm (1.46 x 6.8 in.)

Weight 90 grams • 3.2 oz.

Receiver / Récepteur / Empfänger / Receptor (CR4 and CRND):

Receiving System

CR4 Single conversion Superheterodyne, Microprocessor True Diversity*

CRND Single conversion Superheterodyne, Non-Diversity

Frequency Range 169.0 MHz to 220.0 MHz

Receiving Mode 80KF3E

Sensitivity < 3 µV for 20 dB SINAD, < 10 µV for 50 dB S/N

Selectivity 120 kHz BW, nominal @ -6 dB, ± 300 kHz (adj CH), -75 dB

Squelch Sensitivity 2.5 µV to 250 µV adjustable

IF 10.7 MHz

Local Oscillator System Crystal controlled

Noise Reduction System NE571 based compandor

De-emphasis 50 µsec.

Signal To Noise Ratio > 100 dB (IHF-A) line out, > 90 dB (IHF-A), mic out

Audio Frequency Response 40 Hz to 16 kHz ±3 dB (when used with the CT4L, CT4G, HT4)

T.H.D. < 1% @ 1 kHz

Audio Output Levels 0 dBV unbalanced (1/4" phone connector), -20 dBV balanced (XLR connector)

Audio Output Impedance 5 kΩ unbalanced, 600 Ω balanced

Antennas SO-239 connectors, front or rear, two 1/4

λ whip supplied

Operating Temperature -10 to +55 degrees C

Controls Volume, Squelch, Power (CR4 only)

LED Indicators

CR4 TX On / Antenna A or B (2 LEDs), Modulation Level (5 LEDs)

CRND TX On / Peak / Power (3 LEDs)

Power Requirement 12 Volts DC, 250 mA, AC adapter supplied

Dimensions (W x H x D, without antennas)

CR4 482 x 44 x 130 mm (19 x 1.75 x 5.125 in.)

CRND 178 x 44 x 108 mm (7 x 1.75 x 4.25 in.)

Weight (including antennas)

CR4 1.4 kg • 3.1 lb.

CRND .5 kg • 1.1 lb.

Unit conforms

* US Patent 5,465,411

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Samson CR4 Spécifications Page 39

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