Listen LR-100 Series, Руководство пользователя

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RF Reception RF
Rec
ept
ion
Speci
fi cations
LR-100 Specifi cations
Architectural Specifi cations
The FM stationary receiver - power amplifier (receiver) shall be capable of receiving on 57 wide and
narrow band channels in the frequency ranges of either 72 MHz or 216 MHz. The receiver shall be
programmable to electronically lock out unneeded channels. The device shall have an adjustable
squelch with an LED indication. The frequency response of the device shall be within 3dB from 63 Hz to
15K Hz at 72 MHz, or within 3dB from 63 Hz to 10 kHz at 216 MHz. The signal to noise ratio shall be 80 dB or
greater. The device will have an integrated power amplifier capable of driving an 8 ohm speaker. The
device shall be rack mountable and shall have the capability of a remote antenna. The device shall
incorporate an LCD display that indicates channel and RF signal strength. The Listen LR-100 is specified.
Specifi cations LR-100-072 LT-800-216
RF
RF Frequency Range 72.025 - 75.950 MHz 216.025 - 216.9875 MHz
Number of Channels 57 (17 wide band, 40 narrow band) 57 (19 wide band, 38 narrow band)
Frequency Accuracy ± .005% sta32º to +122 ºF (0º to +50 ºC)
Sensitivity .6uV typical, 1 uV maximum for 12dB SINAD
Optional Antennas Various antennas available
Antenna LA-123 90° Helical Antenna (72 MHz) LA-124 90° Helical Antenna (216 MHz)
Antenna Connector BNC
Compliance FCC Part 15, Industry Canada FCC Part 90, Industry Canada
** All system specifi cations are wireless end-to-end
Audio
System Frequency Response 50 Hz - 15 kHz (±3 dB) 50 Hz - 10 kHz (±3 dB)
System Signal to Noise Ratio
(A-Weighted)
80 dB SQ enabled, 60 dB SQ disabled 80 dB SQ enabled, 50 dB SQ disabled
System Distortion <2% total harmonic distortion (THD) at 80% deviation
Auxiliary Input to Output 25 Hz to 20 kHz (±3 dB) frequency reponse, SNR 80 dB, Distortion: <0.2%
Balanced Auxiliary Input
Rear panel, one (1) female XLR-1/4 in combo connector, balanced, 0 dBu nominal input level adjustable, +13 dBu
maximum, impedance 600 ohm
Unbalanced Auxiliary Input
Rear panel, two (2) phono connectors, unbalanced, -10 dBu nominal input level adjustable, +7 dBu maximum,
impedance 10k ohm
Balanced Output
Rear panel, one (1) male XLR, balanced, 0 dBu nominal output level, +16 dBu maximum, impedance
2k/10 Ohms (line/mic)
Unbalanced Output
Rear panel, two (2) phono connectors, unbalanced, -10 dBu nominal output level, +2 dBu maximum, impedance
2k ohm
Headphone Output (Monitor)
Front Panel, one (1) 3.5mm stereo connector, unbalanced, adjustable output level, +7 dBu maximum, impedance
10 ohm
Speaker Output
Rear panel, one (1) detachable terminal block, bridged, adjustable output level, 15/10 watts (peak/RMS) continuous
power with 4 ohm load
Controls
Set-up Controls Front Panel
(Behind Security Cover)
Power, test tone on/off, channel up/down, input levels, mix level, contour, monitor volume control
User Contols Volume, channel UP/DOWN, SEEK (all controls except volume are lockable)
Set-up Contors Rear Panel
“Audio output select (RX Only, RX + AUX, RX or AUX),
Speaker (Output, Aux), switchable balanced output level”
Remote Controls Eight (8) position detachable terminal block, channel up, channel down, mute
Programming
Unit can be programmed so that only desired channels are displayed to the user, channel selection can be locked by
holding the SEEK button 5 seconds.
Indicators
VU Meter Four (4) LED (three green, one red)
Power Indicated by a green LED when on (front panel)
RF Power Indicated on the LCD (low, mid, high)
LCD Display Channel designation, lock status, RF power level, programming (front panel)
Squelch Green LED illuminates when the unit is squelched
Mute Green LED illuminates when the output audio is muted
Power
Power Supply Type In line power supply, Listen part number LA-201
Power Supply Input Input: 120 VAC, 60 Hz, 19 Watts
Power Supply Output Output: 15 VAC, 1 Amp
Power Supply Connector Output Connector: .02 in (5.0 mm) OD, .01 in. (2.5 mm) ID, barrel type
Power Supply Compliance UL Listed
Optional Battery 12VDC, connected via terminal block
Optional Battery Charging Trickle charge of optional 12VDC battery through terminal block connection