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LR-100
architectural specifications
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 50 Hz to 15 KHz at 72 MHz, or within 3dB from 50 Hz to 10 kHz at 216 MHz. The signal to noise ratio shall be 80dB 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.
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 50 Hz to 15 KHz at 72 MHz, or within 3dB from 50 Hz to 10 kHz at 216 MHz. The signal to noise ratio shall be 80dB 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.
| Specification | LR-100-072 | LR-100-216 | |
| RF | RF Frequency Range | 72.025 - 75.950 MHz | 216.025 - 216.975 MHz |
| Number of Channels | 57 (17 wide, 40 narrow) | 57 (19 wide, 38 narrow) | |
| Frequency Accuracy | '± .005% stability 0° to 50°C (32° to 122° F) | ||
| Antenna | Flexible helical, 9.0 in (23 cm) included | Flexible helical, 5.5 in (14 cm) included | |
| Optional Antennas | Several available. See www.ListenTech.com for details | ||
| Antenna Connector | BNC | ||
| Squelch | Continuously adjustable via front panel trim pot | ||
| Compliance | FCC Part 15, Industry Canada | ||
| Audio | ** All system specifications are wireless end-to-end | ||
| System Frequency Response | 63Hz - 15kHz (±3dB) | 63Hz - 10kHz (±3dB) | |
| System Signal-to-Noise Ratio (A-weighted) |
SQ enabled: 80dB; SQ disabled 60dB | SQ enabled: 80dB; SQ disabled 50dB | |
| System Distortion | <2% total harmonic distortion (THD) at 80% deviation | ||
| Auxiliary Input to Output | Frequency Response: 25Hz to 20kHz (±3dB), SNR: >80dB, Distortion: <0.2% | ||
| Balanced Auxiliary Input | Rear panel. One Female XLR-1/4 in combo connector, balanced, 0dBu nominal input level adjustable, +13dBu maximum, impedance 600 Ohms | ||
| Unbalanced Auxiliary Input | Rear panel. Two Phono connectors, unbalanced, -10dBu nominal input level adjustable, +7dBu maximum, impedance 10k Ohms | ||
| Balanced Output | Rear panel. One Male XLR, balanced, 0dBu nominal output level, +16dBu maximum, impedance 2k/10 Ohms (line/mic) | ||
| Unbalanced Output | Rear panel. Two Phono connectors, unbalanced, -10dBu nominal output level, +2dBu maximum, impedance 2k Ohms | ||
| Headphone Output | Front panel. One 3.5mm stereo connector, unbalanced, adjustable output level, +16dBu maximum, impedance 32 Ohms, 120mW. | ||
| Speaker Output | Rear panel, One 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 |
Receive level, auxiliary input level, SQ on/off, squelch | |
| Set-up Controls, Back Panel | Audio output select (RX Only, RX + AUX, RX or AUX), Speaker (Output, Aux), switchable balanced output level | ||
| User Controls | Volume, channel UP/DOWN, SEEK (all controls except volume are lockable) | ||
| Remote Controls | Eight position detachable terminal block, channel up, channel down, mute | ||
| Programming | Unit can be programmed so that only desired channels are displayed to the user, chaannel selection can be locked by holding the SEEK button 5 seconds. | ||
| Indicators | VU Meter | Four LED (three green, one red) | |
| Power | Green LED illuminates when the unit is powered up | ||
| LCD Display | Channel, RF signal strength, lock status, programming | ||
| 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 | 120VAC, 60 Hz, 19 watts (maximum continuous) | ||
| Power Supply Output | 15VAC, 1A | ||
| Power Supply Connector | .02 in OD x .01 in ID (5.0mm x 2.5mm), barrel type | ||
| Compliance | UL Listed | ||
| Optional Battery | 12VDC, connected via terminal block | ||
| Optional Battery Charging | Trickle charge of optional 12VDC battery through terminal block | ||
| Physical | Dimensions | 8.0 in x 8.0 in x 1.75 in WxDxH (20.3cm x 20.3cm x 4.45cm) | |
| Unit Weight | 2.8 lbs (1.3kg) | ||
| Unit Weight with LA-201 Power Supply | 4.2 lbs (1.9kg) | ||
| Shipping Weight | 5.6 lbs (2.5kg) | ||
| Rack Mounting | 1/2 rack unit (RU), optional rack mount not include, order Listen part number LA-326 | ||
| Environmental | Temperature - Operation | '-10° to +40°C (14° to 104° F) | |
| Temperature - Storage | '-20° to +50° (-4° to 122° F) | ||
| Humidity | 0-95% relative humidity, non-condensing | ||
