Telex FMR-500 Technical Specifications, Specifications Overall, Audio Parameters

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Section 6 - Technical Specifications

FMR-500 Receiver

Specifications

Overall

Receiver Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesized PLL

Frequency Range (RF) . . . . . . . . . . . . . . . . . . . . . A Band 648 - 676 MHz (TV Channels 43 - 48) B Band 696 - 724 MHz (TV Channels 54 - 56)

Number of Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >1122 possible frequencies Programmable in 25 kHz steps

Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 40 kHz Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Digital Posi -PhaseTMTrue Diversity RF Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1.0 µV for 12 dB SINAD Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >60 dB Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tone Code plus Amplitude Ultimate Quieting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB FCC Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approved under Part 15 Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15V AC/DC, 300mA Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7° to 49° C (20° to 120° F)

Receiver Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.72 in. H x 7.50 in. W x 5.9 in. D 43.69 mm H x 190.50 mm W x 150 mm D

Audio Parameters

Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 - 15 kHz +/- 2dB

Balanced Output (typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (max @ 40 kHz deviation) 330mV RMS 100K OHM Load, Mic Position 10mV to 2V RMS 100K OHM Load, Line Position

Unbalanced Output . . . . . . . . . . . . . . . . . . . . . . adjustable 10 mV to 1V RMS, 100K OHM Load Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1.0%, 0.5% typical (ref 1kHz, 40kHz deviation) Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB A Weighted Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >100 dB

Transmitters WT-500 and HT-500

Radiated Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mW Typical Microphone Head ElectroVoice 767a . . . . . . . . . . . . . N/D 767a supercardioid N/DYM dynamic Microphone Head ElectroVoice RE410 . . . . . . . . . . . . . . . . . . . . . . . . RE410 cardioid condenser Standard Lavalier Microphone . . . . . . . . . . . . . . . . . . . . . ELM-22 Omni-Dierctional Condenser

TA4F Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pin 1: Ground; Pin 2 Mic Input; Pin 3: +5V bias; Pin 4: +5V bias through a 3kΩ resistor

Audio Gain Adjustment Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 dB WT-500 26 dB HT-500

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Volt Alkaline Battery Battery Life (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >8 hours with 9-Volt Alkaline Typical Bodypack Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flexible external 1/4 wave Handheld Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internal 1/2 wave Dimensions (Handheld) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.0 cm (9.4 in.) Long

Dimensions (bodypack) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 in. H x 2.38 in. W x 0.92 in. D 96.5 mm H x 60.5 mm W x 23.4 mm D

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Contents FMR-500 System Description Quick Set-UpQuick Set-up Receiver Quick set-up TransmitterReceiver Setup and Operation FMR-500 Receiver Controls, Connectors, and IndicatorsDetailed Components Description Display Status Button Function Activated Edit Accept Receiver Push-Button Reference SheetRack Mount Installation Rack Mount InstallationFront Mounting Antennas Front Mounting AntennasHandheld Transmitter Setup and Operation HT-500 Controls Connectors, and IndicatorsHandheld Transmitter HT-500 Handheld TransmitterBodypack Transmitter WT-500 WT-500 Controls, Connectors, and IndicatorsBodypack Transmitter Control View Top ViewAttach the Microphone or Guitar Bodypack Transmitter Setup and OperationReceiver Display Screens and Functions Squelch Adjustment ScreenMain Operating Screen Transmitter Display and Controls Battery Recommendations Using Multiple Wireless Systems Receiver and Antenna Placement Transmitter On/Off Lock-OutProblem Possible Causes Solutions Trouble Shooting GuideTrouble Shooting Guide Problem Possible Causes Solutions Specifications Overall Technical SpecificationsAudio Parameters Transmitters WT-500 and HT-500Model No Order No Accessories and PartsFactory Service North America Factory Service/Warranty LimitedWarranty Limited