| overview | configs | specs | requires | used with | accessories | related systems | FAQs |
Includes:
LR-400 Portable Display FM Receiver
Owner’s manual (72 MHz & 216 MHz)
Quick Reference Card (863 MHz)
Limited Lifetime Warranty Program Card (863 MHz)
FM System Design Guide and Manual Card (863 MHz)
architectural specifications
LR-400-072/216
The FM receiver shall be capable of receiving on 57 wide and narrow band channels. The receiver shall have a SNR of 80 dB or greater. The receiver shall be capable of seeking channels. The device shall have a squelch. The device shall have an audio frequency response of 50 Hz to 15 KHz, ± 3 dB at 72 MHz and 50 - 10 kHz (±3dB) at 216 MHz. The device shall incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset and listen to audio normally. The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, RF signal strength and channel lock status. The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The device shall have a switch able option for the use of (2) alkaline or (2) NiMH batteries. The Listen LR-400-072 or LR-400-216 is specified.
LR-400-863
The FM receiver shall be capable of receiving on 17 wide band channels with a SNR of 70dB or greater. The device shall be able to be locked on a single channel. The receiver shall be capable of seeking channels. The device shall have an adjustable squelch. The device shall have an audio frequency response of 50 Hz to 15 KHz, ±3 dB. The device will incorporate a stereo headset jack that allows the user to plug in either a mono or stereo headset. The device shall incorporate an LCD display that indicates channel, battery level, low battery, battery charging, and RF signal strength. The receiver shall be able to function in both DX and Local mode. The unit shall operate off of 2 AA batteries. The receiver shall incorporate automatic battery charging circuitry for recharging of NiMH batteries. The Listen LR-400-863 is specified.
| Specification | LR-400-072 |
LR-400-216 |
|
| RF | RF Frequency Range | 72.025 - 75.950 MHz |
216.0125 - 216.9875 MHz |
| Number of Channels | 17 wide band, 40 narrow band |
19 wide band, 38 narrow band |
|
| Sensitivity | .6uV typical, 1 uV maximum for 12 dB sinad |
||
| Frequency Accuracy | ± .005% stability 32 to 122º (0 to 50ºC) |
||
| Antenna | Uses earphone cable |
||
| Squelch | Programmable in 20 steps, automatic on loss of RF signal |
||
| Compliance | FCC Part 15, Industry Canada |
FCC Part 90, Industry Canada |
|
| Audio | ** All system specifications are wireless end to end** |
||
| System Frequency Response | 50 Hz - 15 kHz (±3dB) 72 MHz |
50 - 10 kHz (±3dB) 216 MHz |
|
| System Signal to Noise Ratio | SQ enabled: 80dB; SQ disabled 60dB |
||
| System Distortion | <2% total harmonic distortion (THD) at 80% deviation |
||
| Output | 3.5mm connectors, unbalanced, 0dBu nominal output level, 16mW maximum, impedance 32 Ohms |
||
| Controls | User Controls | Channel up/down, SEEK, volume |
|
| Set-up Controls (battery compartment) | Alkaline/NiMH batteries, SQ enable/disable |
||
| Programming | Channel lock, squelch |
||
| Indicators | LED | Red, illuminated when unit is on. Flashes when batteries are low, or to indicate charging. Flashes when locked and SEEK is pushed. |
|
| Display | Channel Designation, lock status, signal strength indication |
||
| Power | Battery Type | Two AA batteries, alkaline or NiMH |
|
| Battery Life (Listen batteries) | 30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362) |
||
| Battery Charging (NIMH only) | Fully automatic, 13 hours |
||
| Power Supply | I/P 120VAC; O/P 7.5VDC 250 mA; Drop in contact points for use with charging cases. Power supply not included (LA-202) |
||
| Power Supply Connector | 2.3mm OD by 0.7mm ID, barrel type connector 7.5 VDC, center positive <250mA. Drop in contact points for use with Listen charging cases |
||
| Power Supply Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant |
||
| Physical | Dimensions (H x W x D) | 3.00 x 1.00 x 5.00 in. (7.6 x 2.5 x 13.0 cm) |
|
| Color | Dark Grey with white silk screening |
||
| Unit Weight | 3.9 oz (111g) |
||
| Unit Weight with batteries | 5.8 oz (164g) |
||
| Shipping Weight | 1.0 lbs. (0.45kg) |
||
| Door | Manually lockable. SEEK behind the door. |
||
| Environmental | Temperature - Operation | 14 to 104º F (-10 to 40º C) |
|
| Temperature - Storage | -4 to 122° F (-20 to 50° C) |
||
| Humidity | 0 to 95% relative humidity, non-condensing |
Specifications are subject to change without notification |
|
| Specification | LR-400-863 |
|
| RF | RF Frequency Range | 863.050 - 864.950 MHz |
| Number of Channels | 17 Wideband |
|
| Sensitivity | .6uV typical, 1 uV maximum for 12 dB sinad |
|
| Frequency Accuracy | ± .005% stability 32 to 122º (0 to 50ºC) |
|
| Antenna | Integrated External Antenna |
|
| Squelch | Programmable in 20 steps, automatic on loss of RF signal |
|
| Compliance | CE, ETSI, RoHS |
|
| Audio | ** All system specifications are wireless end to end** |
|
| System Frequency Response | 50Hz - 15kHz (+/-3db) |
|
| System Signal to Noise Ratio | 70db (A-Weighted) |
|
| System Distortion | <2% total harmonic distortion (THD) at 80% deviation |
|
| Output | 3.5 mm connector, unbalanced, 0dBu nominal output level, 16 mW maximum, impedance 32 Ohms |
|
| Controls | User Controls | Channel up/down, SEEK, volume |
| Set-up Controls (battery compartment) | Alkaline/NiMH battery switch |
|
| Programming |
Channel Lock, DX/Local, squelch |
|
| Indicators | LED | Red, illuminated when unit is on.Flashes when batteries are low, or charging.Flashes when locked and SEEK is pushed. |
| LCD Display | Channel Designation, lock status, signal strength indication, battery life |
|
| Power | Battery Type | Type: 2 AA batteries, alkaline or NiMH |
| Battery Life (Listen batteries) | 20 hours alkaline (LA-361), 10 hours NiMH rechargeable (LA-362) |
|
| Battery Charging (NiMH only) | Fully Automatic, 13 hours maximum |
|
| Power Supply (LA-208) | 7.5VDC, center positive 300mA. Drop in contact points for use with charging cases. Power supply and specified line cord not included (LA-208) |
|
| Power Supply Connector | 2.3 mm OD by .7mm ID, barrel type |
|
| Power Supply Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant |
|
| Physical | Dimensions (H x W x D) | 5.0 x 3.0 x 1.0 in (13 x 7.6 x 2.5 cm) |
| Color | Dark Grey with white silk screening |
|
| Unit Weight | 3.9 oz (111g) |
|
| Unit Weight with batteries | 5.8 oz (164g) |
|
| Shipping Weight | 1.0 lbs. (0.45kg) |
|
| Door | Manually Lockable. Up, down, and power buttons through door. Other controls behind door (see controls) |
|
| Environmental | Temperature - Operation |
-10C (14F) to +40C (104F) |
| Temperature - Storage |
-20C (-4F) to +50C (122F) |
|
| Humidity | 0 to 95% Relative Humidity, non condensing |
Specifications are subject to change without notification |
1. Line-level earphone jack (3.5 mm) accepts either mono or stereo headsets.
1. An earphone jack (3.5 mm) accepts either mono or stereo headsets. Receiver antenna is built into the earphone cord, eliminating additional wires while maximizing receiver effectiveness.
2. Multifunction LED indicates power on, if batteries are low, if the unit is locked on a channel when SEEK is pressed and charging status.
3. Easy on/off volume control.
4. Look&Listen™ LCD Display shows channel selection, channel lock and battery level.
5. Seeks to find best available broadcast. Also used to adjustable squelch in 20 steps mutes audio on loss of RF signal.
6. Uses two AA batteries. Selectable to use either alkaline or Listen’s advanced NiMH Rechargeable AA Batteries. SmartCharge™ incorporated into receiver makes sure each unit receives the most beneficial charge.
7. When enabled, SQ provides highest audio quality available in its product category. SQ can be disabled for compatibility with other assistive listening equipment.
8. Digitally tuned with UP, DOWN, and SEEK buttons behind manually lockable door. Electronically lock on channel by holding the SEEK button down 5 seconds to prevent tampering.
9. Manually lockable battery compartment door.
10. Charging plug port.
11. Contact points for Listen’s drop in charging cases.
12. Exclusive belt clip “loop” prevents unit from slipping off belt or strap.
1. An earphone jack (3.5 mm) accepts either mono or stereo headsets. Receiver antenna is built into the earphone cord, eliminating additional wires while maximizing receiver effectiveness.
2. Multifunction LED indicates power on, if batteries are low, if the unit is locked on a channel when SEEK is pressed and charging status.
3. Easy on/off volume control.
4. Look&Listen™ LCD Display shows channel selection, channel lock and battery level.
5. Seeks to find best available broadcast. Also used to adjust squelch in 20 steps which mutes audio on loss of RF signal.
6. Uses two AA batteries. Selectable to use either alkaline or Listen’s advanced NiMH Rechargeable AA Batteries. SmartCharge™ incorporated into receiver makes sure each unit receives the most beneficial charge.
7. Digitally tuned with UP, DOWN, and SEEK buttons behind manually lockable door. Electronically lock on channel by holding the SEEK button down 5 seconds to prevent tampering.
8. Manually lockable battery compartment door. 10. Contact points for Listen’s drop in charging cases.
9. Charging plug port.
10. Contact points for Listen’s drop in charging cases.
11. Exclusive belt clip “loop” prevents unit from slipping off belt or strap.
