Telex BTR-800 dimensions TR-825 Specifications

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TR-825

Specifications

RF Frequency Range . . . . . . . . . . . . . . . . . . . . . . 470 - 608 MHz, 614 - 740 MHz in 18 MHz TX and RX bands Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 “AA” Cells Alkaline (NiMH optional) Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 mA (Push-to-Talk, A and B Talk On) Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4° F to 130° F (-20° C to 55° C) Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.75” W x 5.35” H x 2.02” D (9.5 cm x 13.5 cm x 5.1 cm) Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 oz (595g) with alkaline batteries TX Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 Wave (supplied), Screw type, Replaceable RX Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/4 Wave (supplied), Screw type, Replaceable FCC ID: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B5DM517 Frequency Response. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300Hz-8kHz Microphone input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 mV Local Headset Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mW output into 600W (1% distortion)

Transmitter

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synthesized, 712 channels Transmit Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mW Max. (auto-power reduction) Modulation Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM Deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 kHz RF Frequency Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005% Modulation Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak-Responding Compressor Radiated Harmonics & Spurious . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exceeds FCC specifications

Receiver

Type. . . . . . . . . . . . . . . . . . Two, Dual Conversion Superheterodyne Receivers, Synthesized, FM, 712 channels RF Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.8 µV for 12 dB SINAD Squelch Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 dB SINAD (About 1.0 µV) IF Selectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 dB at 230 kHz Image Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB or better Squelch Quieting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 dB RF Frequency Stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005% Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1% at full deviation

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Contents JTN Telex Thank you for choosing RadioComTM Table of Contents Tech Tips System Features IntroductionGeneral Description BTR-800 Block Diagram WTA aControls and Connections Front Panel Local Headset WiringBTR-800 Base Station BTR-800 Front PanelControls and Connections Rear Panel BTR-800 Rear PanelBTR-800 Specifications OverallBlank TR-800 Beltpack Controls and Connections Top PanelTR-800 Top Panel Headset Jack Wiring TR-800 Rear Panel/Connector/AntennasPush-to-Talk/Push-to-Transmit Switch LCD Liquid Crystal DisplayTR-800 Specifications Blank TR-825 Beltpack Telex RAAudio + Audio a Switched Headphone Ground TR-825 Rear Panel/Connector/AntennasTR-825 Specifications Blank BTR-800 Initial Equipment Set-UpUnpacking TR-800, TR-825Antenna Polarization Antenna PlacementAntenna Connection Distance between AntennasDistance Between base station and beltpack Operating System Near ObstructionsKeeping Site Clear to Antenna Antenna Placement Improving Reception and Increasing RangeBase Station Set-up Power ConnectionTransmit Switches LocationInternal Transmit Switches Internal Transmit SwitchesIntercom Switch RJ-11 Type/ Four-wire PinoutRTS Distribution Panel TW5W Example Interface to an RTS TW SystemParts to be Removed by User to Enable Dual Listen Dual Listen FunctionalityAudio Board Part Number and Dual Listen Component Locations Internal Auxiliary Input Routing Switch Auxiliary Input Routing SwitchAuxiliary Input/Output Relay Contact Jack Adapter Screw Terminal Adapter Relay Output SchematicStage Announce / Relay Contacts Internal Stage Announce Level ControlBase Station Link Two Stand Alone Base Stations Connected TogetherBase Station Link Cable Battery Installation Beltpack Set-up Battery InstallationCharger and battery pack damage May resultTR-800 and TR-825 Rear Panel Transmit modeHeadset Connection Push-to-Talk PT Talk Recommended positionBlank Pre-Walk-Thru Checklist Blank System Quick Start System OperationFrequency Plan Overview Factory-Defined GroupsLocal Headset PowerBase Station Operation Intercom a and BDisplay Contrast LCD ContrastBTR-800 Menu Structure Main Screen Flowchart Power-Up Screen Operating ScreenBeltpack Activity Code Definitions Group / Channel Select UP / DownSET Last Rx Changed Group / Frequency Select Frequency Edit User-Programmed Groups OnlyClearScanTM ClearScanSpecial Key Sequences Lockout 1st Use DefaultFactory Default CopyBeltpack Operation TR-800 and TR-825 Top and Rear PanelBeltpack Feature Enable/Disable Menus TR-800 Menu Structure Beltpack Menu StructureTR-800 Menu Structure Power-Up Screens Power-Up ScreensTR-800 Menu Structure Group / Channel Screen Group / Channel ScreenTR-800 Menu Structure Transmit Screen Transmit ScreenTR-800 Menu Structure Receive 1 Screen Receive 1 ScreenTR-800 Menu Structure Receive 2 Screen Receive 2 ScreenTR-800 Menu Structure ClearScan ClearScanTR-800 Menu Structure Stage Announce Enable/Disable Wireless Talk Around Enable/DisableTR-800 Menu Structure Audio Channel a or B Disable/Enable Talk Button Latch on/Latch offTR-800 Menu Structure Special Key Sequences Lockout 04A Scn TR-825 Menu Structure Beltpack Menu StructureTR-825 Menu Structure Power-Up Screens TR-825 Menu Structure Group / Channel Screen 704.700 TR-825 Menu Structure Transmit ScreenTR-825 Menu Structure Receive 1 Screen TR-825 Menu Structure Receive 2 Screen Ab SEP TR-825 Menu Structure Audio Output04b TR-825 Menu Structure ClearScanTMTR-825 Menu Structure Stage Announce Enable/Disable SA onTR-825 Menu Structure Wireless Talk Around TA bTR-825 Menu Structure Audio Channel a Options Audio Channel a OptionsTR-825 Menu Structure Audio Channel B Options Hold SET and Press B Continue to Hold SET Press B AgainTR-825 Menu Structure Special Key Sequences Lockout System Walk-Thru Blank Troubleshooting Problem SolutionBlank Microphone Gain Adjustment Tech TipsFrequency Interaction Blank Battery Information Battery Life TR-800TR-825 Blank Intercom Systems Specifications CommonBlank Accessories and Replacement Parts Blank Software License End-User License Agreement for Telex SoftwareBlank Certification Information FCC LicensingEU Declaration of Conformity PN 803257-1 Rev. H March Made in U.S.A