630065

Samson Concert IV VHF Manual

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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
… 39


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