Listen Technologies Rf Transmitter Package 72mhz
- Product Code: eq181206
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Operating at 72 MHz, the Listen Technologies RF Transmitter Package 72MHzfrom Listen Technologies RF Transmitter Package 72MHzcan be used in a variety of assisted-listening applications, broadcasting signal from your particular audio system to a belt-pack or stationary receiver. This model comes pre-packaged with an LA-106 Telescoping Top-Mounted Antenna and an LA-304 Assistive Listening Notification Signage Kit to facilitate communication between you and your audience, whoever they happen to be. With its 80 dB signal-to-noise ratio, it provides intelligible audio across 57 selectable channels, all digitally tuned so that your transmissions won't drift. Up to eight channels can be used simultaneously on the 72 MHz frequency with multiple transmitters.
The transmitter's Look & Listen LCD displays channel, lock, programming, and RF power, while balanced and unbalanced inputs allow you to connect with a variety of audio sources. The transmitter is rack-mountable and features auto-processing to make the audio clearer for audible transmission. To make the unit easier to set up and install, a VU level meter and test tone generator are included.
Wireless Transmitter Operating at 72 MHz Unbalanced & Balanced Inputs Look & Listen LCD 100% Digital Tuning 57 Selectable Channels 80 dB Signal-to-Noise Ratio Auto Processor for Optimal Transmissions VU Level Meter & Test Tone Includes Antenna & Signage Kit
Audio | |
---|---|
Frequency Response | 50 Hz to 15 kHz (+/- 3 dB) |
Signal to Noise Ratio (SNR) | SQ enabled 80 dB, SQ disabled 60 dB |
System Distortion | <2% total harmonic distortion (THD) at 80% deviation |
Input | Input 1: 1 x female XLR or 1/4" combo connector, balanced, 0 / -55 dBu (line/mic) nominal input level adjustable, -30 / +21 dBu (line/mic) maximum input level, impedance 20k / 1 kOhms (line/mic), phantom power 12 VDC - on rear panel Input 2: 2 x phono connectors, unbalanced, -10 / +10 dBu nominal input level adjustable, +30 dBu maximum, impedance 100 kOhms - on rear panel |
Output | Audio: input 1 and input 2, mixed output (on rear panel), 2 x phono connectors, unbalanced, -10 dBu nominal output level, +19 dBu maximum, impedance 10 ohms Headphone: 1 x 3.5 mm stereo connector, unbalanced, adjustable output level, +7 dBu maximum, impedance 10 Ohms |
Audio Processing | Compression can be turned on or off, slope internally adjustable from 1:1 to 4:1, default 2:1 |
Contour | Cuts and boosts frequencies above 5 kHz |
Controls | User Controls: Power, up/down volume Programming: Via software and USB port |
Controls/Indicators | |
Controls | User Controls: Front Panel: Power, test tone on/off, channel up/down, input levels, mix level, contour, monitor volume control Rear Panel: Input 1 Level, (line, mic, mic+phantom power), input 2 level (-10 / +10 dBu), RF power level (low, mid, high) Internal Adjustments: Compression ratio for audio processor Programming: SQ on/off, process on/off, channel lock |
Indicators | Audio Input Status LEDs: Indicate input 1, input 2, and mix audio levels; 10 segment LEDs; 8 green, 2 red Processing: Indicated by a green LED when on (front panel) RF Power: Indicated on the LCD (low, mid, high) LCD: Channel designation, lock status, RF power level, programming (front panel) Test Tone: Red LED illuminates when test tone is enabled |
RF System | |
Frequency Range | 72.0250 to 75.9500 MHz |
Number of Channels | 17 wideband, 40 narrowband |
Frequency Accuracy | +/- 0.005% stability 32 to 122ºF / 0 to 50ºC |
Transmitter | Simultaneous transmitters: 8 Transmitter Stability: 50 PPM Transmission Range: Up to 1000' / 305 m |
Output Power | 80,000 uV at 3 m |
Antenna Type | Various antennas available BNC connectors |
Power | |
Power Supply | In-line power supply (part number LA-207) |
Power Supply Input | 100 to 240 V AC, 50 to 60 Hz, 0.4 A |
Power Supply Output | 12 VDC, 1.3 A, 15.6 W |
Power Supply Connector | Barrel type: 0.02" / 5.0 mm OD 0.01" / 2.5 mm ID |
General | |
Color | Dark gray with white silk screening |
Environmental | Operation temperature: 14 to 104°F / -10 to 40°C Storage temperature: -4 to 122°F / -20 to 50°C Relative humidity: 0 to 95% relative humidity, non-condensing |
Compliance | UL, CE, GS, TÜV, RoHS |
Dimensions | 1.75 x 8.5 x 9.13" / 4.5 x 21.5 x 23.0 cm |
Weight | With power supply: 3.5 lb / 1.6 kg Unit weight: 2.60 lb / 1.2 kg |
Packaging Info | |
Package Weight | 4.1 lb |
Box Dimensions (LxWxH) | 13.4 x 9.6 x 3" |
Audio quality of 80 dB signal-to-noise ratio (SNR)
57 selectable channels
100% digital: digitally-tuned so the transmission won't drift
Up to eight simultaneous channels on 72 MHz with multiple transmitters
Channel, lock, and programming information
Balanced/unbalanced inputs interface with any audio source on the market
Designed for installation: rack-mountable with optional remote antennas makes installation easy and service reliable
Auto Processor conditions the audio for voice or music prior to transmission
VU level meter and test tone - simply makes the installation easier to set up
Related Questions and Answers
Q: 1. Hello besides the missing monitor is there any other accessory that is missing from this Crane set please? Thank you.
A: No. The following unit is complete and ready to be deployed.
Q: 2. 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: 3. Sorry to show my ignorance here, but how do I run 2 displays from a single DP port? any cables/adapters provided?
A: Not at all. This dock will support 2 4K monitors. This dock has one DisplayPort and one Thunderbolt 3/USB Type-C port, for the secondary monitor.
Q: 4. Can you confirm this clamp is compatible with the 7.6" Multi-Purpose Rail from Really Right Stuff?
A: Yes, this clamp is compatible with the Really Right Stuff 7.6" Multi-Purpose Rail (1/4"-20).
Q: 5. Why are there two channels? Two channels of audio? There really isn't much info from LT. Why not post a copy of the manual or other documentation as other suppliers offer.
A: The Listen Technologies LW-100P-02 Listen Everywhere 2-Channel Wi-Fi Server BH #LILW100P0201is for those applications that only require two channels. Use this model: Listen Technologies Listen Everywhere 4-Channel Server B&H # LILW200P0401: https://bhpho.to/2NMErTj: if more than two channels are needed. The Listen EVERYWHERE LW-100P-02 is an affordable and reliable way to deliver 2 channels of audio to audiences of up to 1000 users. Connect to your existing Wi-Fi network and stream low latency audio directly to guests’ devices using the free mobile app, or by providing Wi-Fi Audio Receivers at your venue to meet ADA compliance. Cloud-based management allows for simple management of the server and listening devices, including supporting custom welcome message videos or logos, sliding banners, and more, all providing another point of contact with your clients and customers. Experience great quality audio and industry leading low latency audio at your venue with a 2 channel Wi-Fi Audio Server. https://bit.ly/3v2GQPB Mark
Q: 6. What are the advantages/disadvantages of using the 216mhz vs 72
A: The 216 MHz system would be great for large coverage areas. With the right antenna they can reach up to about 3,000 ft line-of-sight. You would only be able to have about 3 transmitters in the same area using 216 MHz, though. 72 MHz has a smaller range of about 1,000 ft line-of-sight, but you would be able to have about 7-8 transmitters in the same area. This tends to be the more popular frequency, as well.
Q: 7. This is confusing. The LT has several transmitters e.g. 72Mhz and 216Mhz for example. I thought for the receivers to work they must tune or be set to match this frequency band. Or is the ListenTALK LKR-12 an FM band receiver?
A: The Listen Technologies ListenTALK LKR-12 Basic Receiver with Li-Ion Battery, Lanyard & Ear Speaker BH #LILKR12A0 operates on 1920 to 1930 MHz (North America). The North American DECT band, is sometimes called 1.9 GHz, and properly called the 1920-1930 MHz UPCS band.
Q: 8. How low latency is it? Does it use our Wi-Fi network? If so, we have stellar speeds. If not, I'd be concerned about distance.
A: The Listen Technologies LW-100P-02 Listen Everywhere 2-Channel Wi-Fi Server (BH # LILW100P0201) has virtually no discernable audio latency. It connects to your internet router/modem (network) via an Ethernet cable.
Q: 9. Power supply included ?
A: Yes, included in the box would be a 87W External Power Supply
Q: 10. Can I use this antenna for a regular stereo receiver for listening to the radio?
A: The Listen Technologies LA-122 Universal Antenna Kit (72 and 216 MHz),BH # LILA122, is not designed for FM radio listening. Here is a compatible option: ANTOP Antennas AT-212FM Curved Panel Indoor Amplified AM/FM Antenna (Black), B&H # ANAT212FM
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