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Listen Technologies Lr-500-72 Portable Rf Receiver 72mhz

Listen Technologies Lr-500-72 Portable Rf Receiver 72mhz
  • Product Code: eq176637
  • Availability: In Stock

$359.85 $478.60

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 Range72.025 to 75.95 MHz
Number of Channels17 Wideband, 40 Narrowband
Sensitivity0.6 uV Typical, 1 uV Maximum for 12 dB SINAD
Frequency Accuracy±0.005% Stability (32 to 122°F / 0 to 50°C)
Antenna TypeUses Earphone Cable
SquelchProgrammable in 20 Steps, Automatic on Loss of RF Signal
Audio
Frequency ResponseSystem: 50 Hz to 15 kHz (±3 dB)
Signal to Noise RatioSQ Enabled: 80 dB
SQ Disabled: 60 dB
System Distortion<2% Total Harmonic Distortion (THD) at 80% Deviation
Audio Output Jack3.5 mm Female, Unbalanced, 0 dBu Nominal Output Level, 16 mW Maximum, 32 Ohms
Controls
User ControlsChannel Up/Down, SEEK, Volume, SQ Enable/Disable
ProgrammingChannel Lock, Squelch, Channel Lock Out
Indicators
LEDsRed, Illuminated When Unit Is On, Flashes When Batteries Are Low or to Indicate Charging, Flashes When Locked and SEEK Is Pushed
LCDChannel Designation, Lock Status, Signal Strength Indication, Programming
Power
Battery Type2 x AA Batteries, Alkaline or NiMH
Battery Life30 Hours Alkaline, 15 Hours NiMH Rechargeable
Battery Charging TimeFully Automatic, 13 Hours
Power SupplyInput: 120 VAC
Output: 7.5 VDC, 250 mA
Drop-In Contact Points For Use With Charging Cases
Power Supply ConnectorOD 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
ComplianceRoHS, WEEE, UL, PSE, CE, CUL, TUV, CB
Environmental
Operation Temperature14 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
RFFCC Part 15, Industry Canada
Physical
ColorDark Gray with White Silk Screening
DoorsManually Lockable, Up, Down, and Power Buttons Through Door, and Other Controls Behind Door
Dimensions3 x 5 x 1" / 7.6 x 13 x 2.5 cm
WeightUnit: 3.9 oz / 111 g
Unit with Batteries: 5.8 oz / 164 g
Packaging Info
Package Weight0.415 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

23/09/2024

[0.415 lb] Great receiver, simple to use out of the box, inexpensive.

5
25/08/2024

[0.415 lb] CHECKED VSWR WITH BIRD WATT METER AT 72 MHZ. NO VSWR - RIGHT ON FREQ. - MAX POWER OUTPUT

5
23/08/2024

[0.415 lb] I needed an additional receiver for my Vello trigger/receiver set. Vello is a good brand and does not disappoint.

5
18/08/2024

[0.415 lb] Nice little ear pieces for our hearing assistance devices. They last for years of use and abuse by our church congregation. I have not heard any complaints about sound quality or comfort related to these.

5
17/08/2024

[0.415 lb] church uses these for hearing impaired. works simply including right over hearing aids. I need to bind it as tight as possible to my head to get everything possible out of  it. fits my HP computer for private listening on train etc that is better than earbuds. you can use two and a splitter for even better private hearing.

5
16/08/2024

[0.415 lb] Very good trigger

5
12/08/2024

[0.415 lb] This over-the-ear piece is very comfortable to wear. It stays in place and is not a distraction when wearing it.

5
11/08/2024

[0.415 lb] I spent so much money on an expensive brand that never lasted...until I found the Vello Freewave transmitter and receivers...I've bought three just so I have plenty. Work much better than more expensive brands and Last longer too!

5
08/07/2024

[0.415 lb] Great reliable receiver. I have four of them (for four off camera flashes)

5
03/07/2024

[0.415 lb] I have almost no hearing comprehension in large venues. I noticed that my Church and also a local performance center used the T-Coil system for the hearing impaired. The Churches system was from Listen Tech so I searched for a receiver. At the time I bought the LR-500-072 BH sold it for substantially less than Amazon, so I grabbed one. The receiver picks up the audio directly from the ministers mic - the sound is clear and you have control over the volume. You do have to supply your own earphones and batteries and there is no charger for the batteries. I did not see this as a problem. The device will scan, if you wish, for the frequency being used and you can block freq that might interfere. This was a great purchase. Having your own unit keeps you a little safer than borrowing the supplied units that others use. 5 star

5

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