{"product_id":"listen-technologies-lt-803-072-01-3-channel-72-mhz-rf-transmitter","title":"Listen Technologies LT-803-072-01 3-Channel 72 MHz RF Transmitter","description":"\u003ch2\u003eListen Technologies LT-803-072-01 3-Channel RF Transmitter (72 MHz)\u003c\/h2\u003e\n\n\u003cp\u003eThe Listen Technologies LT-803-072-01 3-Channel RF Transmitter is a stationary assistive listening transmitter that broadcasts one audio program on a selectable 72 MHz channel. It accepts microphone and line-level sources, combines two audio inputs, and provides audio processing and front-panel monitoring for installed listening systems in public spaces.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for houses of worship, lecture halls, theaters, and other venues, this transmitter connects existing sound systems to compatible personal listening receivers. Choose from channels A, E, or H to configure a 72 MHz assistive listening installation without requiring a separate transmitter for each listener. Its balanced XLR\/1\/4\" combination input, stereo RCA input, and mixed RCA output accommodate common professional and consumer audio connections. The transmitter supports installations requiring reliable audio distribution for assisted listening, guided presentations, and spoken-word programming.\u003c\/p\u003e\n\n\u003cp\u003eThe front-panel Look \u0026amp; Listen LCD identifies the selected channel, lock status, and RF power setting, while ten-segment meters help operators monitor incoming audio levels. Automatic gain control, limiting, adjustable compression, and contour processing support speech and music reproduction. The half-rack-width chassis fits a 1U rack space with an optional mounting kit. A separately purchased 72 MHz antenna and compatible receivers complete the wireless listening system. Legacy Listen Technologies receivers must use the matching channel with SQ mode disabled.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Selectable RF Channels:\u003c\/strong\u003e Choose between 72.100 MHz, 72.900 MHz, and 75.900 MHz for single-channel assisted listening applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Audio Connectivity:\u003c\/strong\u003e Balanced XLR\/1\/4\" microphone and line input plus unbalanced RCA connections accommodate various audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Audio Processing:\u003c\/strong\u003e Automatic gain control, limiting, adjustable compression, and contour processing help maintain consistent audio levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLook \u0026amp; Listen LCD:\u003c\/strong\u003e Displays channel selection, channel lock status, and RF transmission power for convenient system monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable RF Transmission Power:\u003c\/strong\u003e Select low, medium, or high output settings to accommodate different installation requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Audio Monitoring:\u003c\/strong\u003e Front-panel headphone output and LED level indicators simplify signal monitoring and troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Rack-Compatible Design:\u003c\/strong\u003e Half-rack-width, 1U-high chassis supports optional rack mounting with the LA-326 mounting kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Receiver Support:\u003c\/strong\u003e Works with appropriately configured Listen Technologies 72 MHz receivers, allowing multiple listeners to receive the same program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eGeneral Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Listen Technologies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e LT-803-072-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Stationary RF Assistive Listening Transmitter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Band:\u003c\/strong\u003e 72 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Installed assistive listening systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Configuration:\u003c\/strong\u003e One channel at a time from three selectable frequencies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Dark gray with white markings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eRF Transmission Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Channels:\u003c\/strong\u003e 3 wideband channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel A:\u003c\/strong\u003e 72.100 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel E:\u003c\/strong\u003e 72.900 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel H:\u003c\/strong\u003e 75.900 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Accuracy:\u003c\/strong\u003e +\/-0.005% stability from 32 to 122 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmitter Stability:\u003c\/strong\u003e 50 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Range:\u003c\/strong\u003e Up to 1,000 ft. line of sight with a remote antenna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Output Power Settings:\u003c\/strong\u003e Low, medium, and high (quarter, half, and full power)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Output Measurement:\u003c\/strong\u003e 80,000 microvolts at 9.8 ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna Connection:\u003c\/strong\u003e 50-ohm BNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Antennas:\u003c\/strong\u003e Optional Listen Technologies 72 MHz antennas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Antenna Cable:\u003c\/strong\u003e RG-58 for runs under 100 ft.; RG-8 for runs over 100 ft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAudio Performance\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 50 Hz to 15 kHz (+\/-3 dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 62 dB (A-weighted)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion:\u003c\/strong\u003e Less than 2% at 80% deviation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Processing:\u003c\/strong\u003e Automatic gain control, limiting, and adjustable compression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Control:\u003c\/strong\u003e Selectable on\/off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e Internally adjustable from 1:1 to 4:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault Compression Ratio:\u003c\/strong\u003e 2:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContour Processing:\u003c\/strong\u003e Adjustable attenuation and enhancement of frequencies above 5 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Mixing:\u003c\/strong\u003e Two audio inputs with adjustable mixed output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAudio Inputs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 1 Connector:\u003c\/strong\u003e 1 x XLR\/1\/4\" combination connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 1 Location:\u003c\/strong\u003e Rear panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 1 Configuration:\u003c\/strong\u003e Balanced microphone\/line input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 1 Nominal Level:\u003c\/strong\u003e 0 dBu line \/ -55 dBu microphone, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 1 Impedance:\u003c\/strong\u003e 20 kilohms line \/ 1 kilohm microphone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrophone Phantom Power:\u003c\/strong\u003e +12 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 2 Connectors:\u003c\/strong\u003e 2 x RCA connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 2 Configuration:\u003c\/strong\u003e Unbalanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 2 Nominal Level:\u003c\/strong\u003e -10\/+10 dBu, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 2 Maximum Level:\u003c\/strong\u003e +30 dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Input 2 Impedance:\u003c\/strong\u003e 100 kilohms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAudio Outputs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Audio Output:\u003c\/strong\u003e 2 x RCA connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Output Configuration:\u003c\/strong\u003e Unbalanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Output Nominal Level:\u003c\/strong\u003e -10 dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Output Maximum Level:\u003c\/strong\u003e +15 dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed Output Impedance:\u003c\/strong\u003e 10 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output:\u003c\/strong\u003e 1 x 1\/8\" stereo connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output Location:\u003c\/strong\u003e Front panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output Configuration:\u003c\/strong\u003e Unbalanced, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Maximum Output:\u003c\/strong\u003e +3 dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Output Impedance:\u003c\/strong\u003e 10 ohms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eControls and Indicators\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-Panel Controls:\u003c\/strong\u003e Power, test tone, channel up\/down, input levels, mix level, contour, and monitor volume\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear-Panel Controls:\u003c\/strong\u003e Input 1 microphone\/line selection, phantom power, Input 2 level selection, and RF output power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Adjustment:\u003c\/strong\u003e Audio compression ratio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable Functions:\u003c\/strong\u003e Audio processing on\/off and channel lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Display:\u003c\/strong\u003e Channel designation, channel lock status, and RF power level\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Level Monitoring:\u003c\/strong\u003e 10-segment LED indicators for Input 1, Input 2, and mixed audio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel Indicator Colors:\u003c\/strong\u003e 8 green and 2 red LEDs per meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessing Indicator:\u003c\/strong\u003e Green LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Tone Indicator:\u003c\/strong\u003e Red LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Power Indicator:\u003c\/strong\u003e Low, medium, or high on LCD\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003ePower Requirements\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Model:\u003c\/strong\u003e Listen Technologies LA-207\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Type:\u003c\/strong\u003e External in-line AC adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Voltage:\u003c\/strong\u003e 100-240 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Frequency:\u003c\/strong\u003e 50-60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Current:\u003c\/strong\u003e 0.4 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Voltage:\u003c\/strong\u003e 12 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Current:\u003c\/strong\u003e 1.3 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Rating:\u003c\/strong\u003e 15.6 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Connector:\u003c\/strong\u003e Barrel type, approximately 0.2\" outer diameter and 0.1\" inner diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003ePhysical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (L x W x H):\u003c\/strong\u003e 9.1\" x 8.5\" x 1.8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Weight:\u003c\/strong\u003e 2.6 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight with Power Supply:\u003c\/strong\u003e 4.5 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Specified Shipping Weight:\u003c\/strong\u003e 6 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Mounting:\u003c\/strong\u003e 1U height, half-rack width\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Capacity:\u003c\/strong\u003e Up to two transmitters per 1U rack space using optional mounting hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Rack Mount Kit:\u003c\/strong\u003e LA-326 Universal Rack Mounting Kit, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eEnvironmental and Regulatory Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 14 to 104 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -4 to 122 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative Humidity:\u003c\/strong\u003e 0-95%, non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed Certifications and Compliance:\u003c\/strong\u003e UL, CE, GS, TUV, and RoHS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRF Regulatory Compliance:\u003c\/strong\u003e FCC Part 15, FCC Part 90, and Industry Canada\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Listen Technologies LT-803-072-01 Stationary 3-Channel RF Transmitter (72 MHz)\u003c\/li\u003e\n\u003cli\u003e1 x Power Supply\u003c\/li\u003e\n\u003cli\u003e1 x Quick Reference Card\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e The transmitter broadcasts on only one of its three selectable channels at a time. A compatible antenna and RF receivers are required for a complete listening system and are sold separately. Rack mounting hardware is also sold separately.\u003c\/p\u003e","brand":"Listen Technologies","offers":[{"title":"Default Title","offer_id":50810279329989,"sku":"LIS-LT80307201","price":556.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/1-listen-technologies-lt-803-072-01_dd946fc6-9547-4a8d-ba4f-40b854c45835.jpg?v=1793055560","url":"https:\/\/avlgear.com\/products\/listen-technologies-lt-803-072-01-3-channel-72-mhz-rf-transmitter","provider":"AVLGEAR","version":"1.0","type":"link"}