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The Telex BTR-300 is a VHF wireless intercom Base Station, featuring simultaneous, full-duplex support of up to 4 remote stations and 16 beltpack transceivers, and features a 2000' (beltpack to beltpack) operating range. The higher VHF frequency allocation and advanced front-end RF filtering have been acquired and designed to avoid DTV operating bands and minimize localized RF interference on location.
The BTR-300 features a comprehensive set of controls, switches and connectors facilitating use with both wired and wireless intercoms (including 4-wire stations), PA systems, and recording devices. Both Telex and RTS headsets, equipped with either electret or dynamic boom microphones, may be used.
The BTR-300 is a fully professional base station in design and construction, and a versatile solution as either the basis of an independent wireless intercom system, or as an expansion unit for an existing one.
Flexible, full-duplex VHF wireless intercom Base Station with simultaneous communications support of up to 4 portable and wired stations and 16 beltpack transceivers
Frequency allocation designed to avoid DTV band allocations, greatly reduce interference with improved "high-Q" front-end RF filtering and unique channel assignments
Computerized frequency selection for maximized precision, consistent operability
Rugged, shielded all-metal casing, table top or rackmount use
Intercom loop-thru connectors with existing external wired intercom stations, External Intercom switch with dedicated level trim and LED indicator
Auxiliary audio connectors to PA systems, recording devices and 4-wire intercoms; Auxiliary Enable switch with dedicated level control and LED indicator
3-position CONT/OFF/REMOTE transmit mode switch allows base station to be used solely as monitor, as full transceiver with transmitter always engaged, or as transmitter activated only by remote portable activity
Dedicated RF indicator lights for each remote portable station, individual Portable Enable In/Out switches allow individual monitoring for In position, individual muting for selected station in Out position
Telex or RTS Headset connectors with dedicated headset volume control
Adjustable headset microphone trim control with gain compressor for overload protection, dedicated gain light indicator
Local external speaker out jack with volume trim control
Headset mic selector switch for electret or dynamic microphone use, separate Mic Push-To- or Lock-To-Talk local headset microphone enabler switch
In the Box
Telex BTR-300 - VHF Wireless Intercom Base Station - 710B
5/8 Wave Antennas
12 V AC/DC 700 mA Power Supply
Rack Mounting Hardware
1 Year Warranty
Table of Contents
150 - 216 MHz
Up to 2000'(line of sight, beltpack to beltpack)
Crystal Controlled, 0.005%
12 - 15 V AC/DC
Notification under FCC Part 15
50 mW Typical
<1% at Rated Output
<0.5 uV for 12 dB SINAD
Not Specified by Manufacturer
65 dB or better
Controls and Indicators
Front Panel: 1 x Power On/Off Switch 1 x Power On LED Indicator 1 x External Intercom Switch 1 x External Intercom Level Control 1 x External Intercom LED Indicator 1 x Auxiliary Audio Enable Switch 1 x Auxiliary Audio Level Control 1 x Auxiliary Audio LED Indicator 1 x Headset Mic On Switch 1 x Headset Volume Control Knob 1 x Local Push-to-Talk LED Indicator 1 x Local Microphone Gain Control 1 x Overmodulation LED Indicator 4 x Portable Transmit/Station Enable Switches 4 x Portable Enable LED Indicators Rear Panel: 1 x 3-Position Transmit Switch 1 x Headset Microphone Select Switch 1 x External Speaker Volume Control
Front: 1 x 4-pin XLR Male Telex Headset Connector* Rear: 2 x Color-Coded Transmit/Receive Antenna Connectors 1 x 3-pin XLR Female Auxiliary Input 1 x 3-pin XLR Male Auxiliary Output 1 x 3-pin XLR Female Intercom In 1 x 3-pin XLR Male Intercom Out 1 x 1/4" 8 Ohm External Speaker Out 1 x 12 V AC/DC Power In *Also available with 4-pin XLR Female Connector for RTS Headsets
2 x 5/8 Wave* SO239 Connector on Chassis *Transmit and Receive
15.75 x 1.75 x 10.5" (400 x 45 x 260mm)
4.5 lb (2 kg)
Telex BTR-300 - VHF Wireless Intercom Base Station - 710B Review