Listen Technologies Lr-500-72 Portable Rf Receiver 72mhz
- Product Code: eq176637
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The LR-500-72 Listen Technologies LR-500-72 Portable RF Receiver 72MHzfrom Listen Technologies LR-500-72 Portable RF Receiver 72MHzis a 72 MHz digital audio receiver for use with assistive listening systems. The unit works with the LT-700 and LT-800 transmitters and can supply audio to mono or stereo headphones (headphones and transmitters available separately).
This multichannel receiver has a Look & Listen LCD screen that shows programming status, channel, lock, battery level, and RF signal strength. Channel selector buttons are located on the front of the unit. It has channel seek capability and is powered by AA batteries. The LR-500 will run for up to 30 hours on alkaline batteries and 15 hours on NiMH rechargeable batteries.
Compact Digital Audio Receiver For Assistive Listening Systems Use with Mono or Stereo Headphones 17 Wideband or 40 Narrowband Channels Easy-to-Read LCD Screen Up to 30 Hours on AA Batteries Compatible with LT Drop-In Chargers
RF Specification | |
---|---|
RF Frequency Range | 72.025 to 75.95 MHz |
Number of Channels | 17 Wideband, 40 Narrowband |
Sensitivity | 0.6 uV Typical, 1 uV Maximum for 12 dB SINAD |
Frequency Accuracy | ±0.005% Stability (32 to 122°F / 0 to 50°C) |
Antenna Type | Uses Earphone Cable |
Squelch | Programmable in 20 Steps, Automatic on Loss of RF Signal |
Audio | |
Frequency Response | System: 50 Hz to 15 kHz (±3 dB) |
Signal to Noise Ratio | SQ Enabled: 80 dB SQ Disabled: 60 dB |
System Distortion | <2% Total Harmonic Distortion (THD) at 80% Deviation |
Audio Output Jack | 3.5 mm Female, Unbalanced, 0 dBu Nominal Output Level, 16 mW Maximum, 32 Ohms |
Controls | |
User Controls | Channel Up/Down, SEEK, Volume, SQ Enable/Disable |
Programming | Channel Lock, Squelch, Channel Lock Out |
Indicators | |
LEDs | Red, Illuminated When Unit Is On, Flashes When Batteries Are Low or to Indicate Charging, Flashes When Locked and SEEK Is Pushed |
LCD | Channel Designation, Lock Status, Signal Strength Indication, Programming |
Power | |
Battery Type | 2 x AA Batteries, Alkaline or NiMH |
Battery Life | 30 Hours Alkaline, 15 Hours NiMH Rechargeable |
Battery Charging Time | Fully Automatic, 13 Hours |
Power Supply | Input: 120 VAC Output: 7.5 VDC, 250 mA Drop-In Contact Points For Use With Charging Cases |
Power Supply Connector | OD x ID: 0.09 x 0.02" / 2.3 x 0.7 mm Barrel Type Connector 7.5 VDC Center Positive <250 mA Drop-In Contact Points For Use With Listen Charging Cases |
Compliance | RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB |
Environmental | |
Operation Temperature | 14 to 104°F (-10 to 40°C) |
Storage Temperature | -4 to 122°F (-20 to 50°C) |
Humidity (Non-Condensing) | 0 to 95% Relative Humidity |
Compliance and Approvals | |
RF | FCC Part 15, Industry Canada |
Physical | |
Color | Dark Gray with White Silk Screening |
Doors | Manually Lockable, Up, Down, and Power Buttons Through Door, and Other Controls Behind Door |
Dimensions | 3 x 5 x 1" / 7.6 x 13 x 2.5 cm |
Weight | Unit: 3.9 oz / 111 g Unit with Batteries: 5.8 oz / 164 g |
Packaging Info | |
Package Weight | 0.415 lb |
Box Dimensions (LxWxH) | 6.05 x 4.4 x 2.05" |
80 dB signal-to-noise ratio with SQ enabled (SNR)
17 wideband or 40 narrowband operating channels available for reception
Unneeded channels can be locked so the receiver will access only one or more channels of your choice
Receiver is digitally tuned so the transmission won't drift
Uses standard alkaline or rechargeable NiMH batteries
Built in SmartCharge won't allow batteries to overcharge
Used with LT-700 and LT-800 transmitters
Related Questions and Answers
Q: 1. Have anyone tries this one with Nikon SB800?
A: Funciona perfecto!!! Solo le encuentro un detalle....si lo olvida prendido o esta todo un dia trabajando consume mucha bateria, Saludos!!! Es.buena compra!
Q: 2. I own the Vello captain transmitter and one captain reciever, will my captain transmitter trigger this reciever? I know it wiould be manual that's not a problem for me
A: According to the Vello FreeWave LR Wireless Flash Trigger Receiver's instruction manual, when using Channels 1-4, the Vello FreeWave LR Wireless Flash Trigger Receiver can be triggered via the Vello Captain TTL Transmitter.
Q: 3. What are the dimensions of the headset itself? (not the box)
A: No dimensions given, however, based on box dimensions below, estimate 6.5 x 4.5 x 1" 7.8 x 5.5 x 1.3"
Q: 4. Are these fully compatible with ListenTalk? I am assuming the most important difference is that it has no screen and can only be used to listen with.
A: The Listen Technologies ListenTALK LKR-12 Basic Receiver with Li-Ion Battery, Lanyard & Ear Speaker BH #LILKR12A0 is an easy-to-use device that fits in with the company's range of transmitters. It is a one-way device for listening to group conversations, such as panels, multi-person tours, and similar occasions.
Q: 5. is this compatable with the vello freewave fusion pro?
A: No
Q: 6. Will this receiver work with Pocket Wizards? Seems to be the same frequency.
A: No, the Vello FreeWave LR Receiver, B&H # VERFWLRR, would not be compatible for use with PocketWizard remotes. You cannot interchange remotes between different manufacturer brands, even if they have the same frequency. But for the record, the Vello FreeWave LR Receiver operates on 2.4 GHz frequency, while PocketWizard remotes operate on 340 to 354 MHz or 344 MHz radio frequency.
Q: 7. Are these receivers compatible with off-brand transmitters in the 72-76 MHz range?
A: The Listen Technologies LR-500-72 Portable Programmable Display RF Receiver (72 MHz) BH #LILR500072 is compatible with Listen Technologies transmitters.
Q: 8. Will these work on a Nikon D700 and an Alien Bees B400?
A: Yes I have the working with my Nikon D750 D7200 and D5100
Q: 9. will this work with Olympus 900r and 600r flashes ?? J. Payne
A: Yes, it is possible to use the Vello FreeWave LR Receiver with the Olympus FL-900R Electronic Flash and the Olympus FL-600R Flash mounted to the hot shoe on the bottom of the flashes listed above. However, do note that you would also need the Vello FreeWave LR Wireless Flash Trigger on the camera's hot shoe, and the transmitter is not sold by itself. As such, if you do not already own the transmitter, it would be better to purchase the Vello FreeWave LR Wireless Flash Trigger and Receiver Kit, B&H # VERFWLR, or the Vello FreeWave LR Kit with 2 Receivers, B&H # VERFWLRK, both which include the transmitter in the kit. Do note that these transmitters are fully manual, so you would have to set your flash output power manually as TTL automatic output is not compatible for use with the Vello FreeWave LR radio remotes.
Q: 10. Can you use two of these units, side-by-side, to produce 4 channels?
A: No it cannot. Use this model: Listen Technologies Listen Everywhere 4-Channel Server B&H # LILW200P0401: https://bhpho.to/2NMErTj
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