Telex RadioCom BTR-300 Operating Instructions Manual Download | Manualshive

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Summary of Contents for RadioCom BTR-300

Page 1: ...Telex Operating Instructions PROFESSIONAL WIRELESS INTERCOM SYSTEM TR 300 TR 300P BTR 300 ...

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Page 3: ... EQUIPMENT SET UP 13 UNPACKING 13 ANTENNA INFORMATION 13 ANTENNA CONNECTIONS 13 ANTENNA POLARIZATION 14 DISTANCE BETWEEN ANTENNAS 14 ANTENNA PLACEMENT 15 IMPROVING RECEPTION INCREASING RANGE 16 BTR 300 SET UP 17 LOCATION 17 INTERNAL INTERCOM SWITCHES 17 RACK MOUNTING 19 LOCAL HEADSET CONNECTION 21 HEADSET MIC SELECT SWITCH 21 TRANSMIT SWITCH 21 INTERCONNECTION TO A HARD WIRED INTERCOM 22 AUXILIARY...

Page 4: ...O TALK PUSH TO TRANSMIT SWITCH 28 BATTERY REMOVAL 29 ENABLING AUDIO 30 PORTABLES 30 WIRED INTERCOM 30 AUXILIARY 30 SETTING SYSTEM GAIN LEVELS 31 ADJUSTING GAIN 31 BTR 200 BASE STATION 31 TR 200 PORTABLE 31 INTERCOM GAIN 32 AUXILIARY GAIN 32 SYSTEM WALK THRU 33 TROUBLE SHOOTING 34 BATTERY INFORMATION 35 GENERAL 35 BC 4 BATTERY CHARGER 35 RECOMMENDED HEADSETS 36 ACCESSORIES 38 WARRANTY SERVICE INFOR...

Page 5: ...ability of interface with a wired intercom system and other auxil iary audio At the BTR 300 operator s command the remotes may communicate with each other with a wired intercom system or with an auxil iary system The BTR 300 Base Station with its one transmit and four receive channels is designed to operate in full duplex simulta neous two way communications with up to four TR 300 Belt Pack transc...

Page 6: ...dio activated by a switch As many as four TR 300 belt pack transceivers can operate in a fully duplex net work with one Telex Model BTR 300 Base Station The TR 300P Transceiver operates in the Push to transmit mode the transmit and talk function are activated together Any number of TR 300P transceivers can be used in a half duplex network with one BTR 300 Base Station Operate only one TR 300P at a...

Page 7: ...Input 2 mV RMS input nominal 1 5 mV RMS input at compression Dynamic Local Headset Output 32 mW maximum output into 600 ohmst Temperature Range 4 F to 130 F 20 C to 55 C Dimensions 15 75 W x 1 75 H x 10 5 D 40 cm x 4 5 cm x 26 cm Weight 4 5 lbs 2 kg Transmit RF Frequency Range 150 216 MHz RF Frequency Stability Crystal Controlled 0 005 RF Power Output 50 mW Typical Modulation FM 3 KHz deviation 11...

Page 8: ...ed 12 to 14 VDC 600 mA source or 13 0 VAC RMS 600 mA source Intercom connections with the ability to in terface with most wired intercom systems RF LED indicator for each portable station All metal case for superior shielding Table or rack mountable 4 SPECIFICATIONS BTR 300 CONT Receive RF Frequency Range 150 216 MHz RF Frequency Stability Crystal Controlled 0 005 Type Dual Conversion superheterod...

Page 9: ...one audio function NOTE DOES NOT control base station RF transmit Local Push to Talk Indicator Will be illumi nated whenever the talk function is on Local Microphone Gain Control and Overmodulation Indicator A screwdriver adjustable control is provided to control the in put level of the local headset mic This input is protected from overloads by means of a gain compressor whose operation is signal...

Page 10: ...monitor In the CONT po sition the transmitter is always on This continuous mode is recommended over the REMOTE mode In the REMOTE posi tion the transmitter is enabled only when one or more portables are active Headset Microphone Select Switch This switch allows the user to select either an Electret or Dynamic microphone Intercom Connectors Connections to inter face the BTR 300 with a wired interco...

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Page 13: ...eviation 115 micro seconds Pre emphasis Modulation Limiter Internal Compressor Modulation Frequency Range 300 to 5000 Hz 2dB Microphone Audio Input 30 to 3500 ohms Microphone Input Sensitivity 2 mV Dynamic 4 mV Electret Radiated Harmonics and Spurious Emissions 45 dBC Exceeds FCC Specifications FCC Type Accepted Under Parts 90 and 74 Receive RF Frequency Range 150 216 MHz RF Frequency Stabiltiy Cr...

Page 14: ... cause any illumination at all Overmodulation Indicator Uses the same LED as the low battery indicator During the talk mode if the microphone gain is too high the LED will illuminate when talking Push To Talk Lock To TalkSwitch For Model TR 300 this switch enables the talk function For Model TR 300P this switch en ables the transmit and audio function and oth erwise operates as described for BTR 3...

Page 15: ...Figure 6 External Controls TR 300 11 ...

Page 16: ...ustable by removing belt clip and prying out the small rubber plug to the right of the screw boss Dynamic Electret Switch This switch allows selection of D when using a Dynamic Micro phone or E when using an Electret Micro phone Battery Compartment Holds 6 AA batteries in a removable battery holder supplied 12 ...

Page 17: ...wave antenna by screwing the two sections together as shown in Figure 8 Both sections of the BTR 300 5 8 wave anten nas must be used Leaving off the top section will result in reduced distance capability Figure 8 5 8 wave Antenna Assembly To insure that the frequency range of the anten nas match the receiver and transmitter of the BTR 300 match the color band on the antenna with the color dot on t...

Page 18: ...suggestions will result in optimum perfor mance Proper placement of the TR 300 can be critical The trailing antennas should dangle freely Wadding the antennas up and placing them in a pocket etc will reduce system distance It is suggested that the unit be worn on the belt or pocket with both antenna s hung vertically for best operating range and performance Figure 11 Proper Dressing of the Antenna...

Page 19: ...0 See Figure 14 IMPROVING RECEPTION AND INCREASING RANGE Keeping the distance from the base BTR 300 and the belt packs TR 300 as short and un obstructed as possible will produce the most re liable performance The BTR 300 is supplied with two antennas This should provide satisfactory system perfor mance in most applications System range can be enhanced by remoting the 5 8 wave receive antenna using...

Page 20: ... to remove the cover on the BTR 300 Remove three 6 32 x 3 8 screws on both sides of the unit Remove four 4 40 x 3 16 screws on the top front and loosen three 4 40 x 3 16 screws on the back of the unit The cover will lift off Reference Figure 15 for switch positions Change the switch positions as indicated in the chart depending on the wired intercom system you will be using After setting this swit...

Page 21: ...he High Low switch This switch is also located inside the BTR 300 as shown in Figure 16 For the correct setting corresponding to your wired intercom unit see Table 2 The switch is factory set for use with Telex AudioCom or RTS wired intercoms Table 2 Figure 16 Location of High Low Switch 17 Switch Setting Telex AudioCom High RTS High Clearcom Low ...

Page 22: ...the rack mount brackets supplied on ei ther side of the unit and insert three 6 32 x 3 8 screws for each bracket Tighten the screws securely Insert the BTR 300 into your 19 rack enclo sure and insert four 4 10 32 x 3 8 Phillips pan head screws supplied in each corner of the rack mount brackets and secure to your en closure Figure 17 Attaching Brackets For Rack Mounting 18 ...

Page 23: ...5 8 wave antenna The antenna can be attached to either a wall mount bracket or a microphone stand bracket not supplied See Accessory section for order information You will also need to remote the transmit an tenna in the same manner Connect a coax ca ble assembly to the transmit antenna receptacle Remote the 5 8 wave antenna by attaching the antenna to one of the brackets not supplied Figure 18 Re...

Page 24: ...PE OF MICRO PHONE YOU ARE USING WITH THE DY NAMIC ELECTRET SWITCH LOCATED ON THE REAR OF THE UNIT TRANSMIT SWITCH Allows the operator to select three different types of transmitting modes continuous trans mitter transmitter off or remote transmitter For most operations place the transmitter switch in the CONT position Continuous mode In the Continuous mode the transmitter will be on at all times r...

Page 25: ...g wired intercom systems including RTS and Clearcom Connect the intercom cable to the back of the BTR 300 There are two intercom connections on the back of the unit one being a male con nector the other a female connector connected in parallel with each other Either works as an input or output Figure 22 Typical Interface to Wired System 21 ...

Page 26: ...ferent frequencies POWER CONNECTION Insure the Power ON OFF Switch on the front of the BTR 300 is in the OFF position Con nect the AC power supply cord to the BTR at the socket labeled POWER Plug the power supply unit into an AC outlet DUMMY LOAD In the case where a wired intercom will not be used with the BTR 300 it is important that the dummy load supplied be installed The dummy load should be p...

Page 27: ...ch the type of microphone you are using with the dynamic electret switch located inside the bat tery compartment BATTERY INSTALLATION Insure that the OFF ON Volume control knob is turned OFF Access the battery compartment by removing the belt clip on the back of the unit Release the 1 4 turn fastener located on the back of the belt clip and remove belt clip cover Remove the battery holder from the...

Page 28: ... to BTR 300 trans ceiver Connected the antennas to the BTR 300 with matched color codes Set Dynamic Electret switches in both BTR 300 and TR 300 Set transmit switch on BTR 300 Connected headsets to BTR 300 and all TR 300 s Connected the BTR 300 to any auxil iary audio intercom or external speaker Installed batteries in the TR 300 Re mote Transceiver If you missed any of the above instructions go b...

Page 29: ... or counterclockwise as required for comfortable listening volume Figure 29 Volume Control BTR 300 PUSH TO TALK LOCK TO TALK SWITCH To enable the talk function on the BTR 300 press and hold down on the talk button and be gin talking Releasing the talk button will dis continue the microphone audio For continuous talk quickly press the talk button twice This enables the talk function as long as you ...

Page 30: ... as re quired for comfortable listening volume Figure 32 Power ON OFF Volume Control TR 300 PUSH TO TALK PUSH TO TRANSMIT To enable the talk function on the Model TR 300 press and hold down on the talk button and begin talking Releasingthe talk button will discontinue the microphone audio For contin uous talk quickly press the talk button twice This locks on the talk function To release the talk f...

Page 31: ... the TR 300 portables that will be used with the BTR 300 Push in the portable enable switches that correspond to the frequencies of the TR 300 remotes that you will be using The frequencies of the portable stations 1 2 3 and 4 are listed on the bottom of the BTR 300 The Portable Carrier LED will illuminate when the remote on that frequency is turned on The in dicators may also light in response to...

Page 32: ...d by changing the spacing between the microphone and your mouth Figure 36 Adjusting Microphone Gain BTR 300 BTR 300 BASE STATION The microphone overmodulation indicator for the BTR 300 headset can be found on the right side of the front panel The microphone gain control potentiometer is located to the left of the indicator TR 300 PORTABLE The overmodulation circuitry in the TR 300 uses the same LE...

Page 33: ...y auxiliary equipment you are ready to test the overall performance by Walking theTELEX system through the areas in which you will be using it Before you begin your walk thru check the fol lowing TR 300 Battery Check Set microphone gain in both the TR 300 and the BTR 300 Check the push to talk switch is en gaged in the Lock to talk position LED will be illuminated Portable units to be used are ena...

Page 34: ...rs Reduce the gain settings on both the beltpacks and the base They may be too high DROPOUTS When moving around the area of use there seems to be locations where the signal swooshes or completely disap pears Make sure both antennas on the base are connected and follow the location sugges tions Change the location of the base unit and antennas or avoid the bad areas with the remote beltpacks INTERF...

Page 35: ...use of low cost car bon zinc batteries is NOT recommended AC 1NM BATTERY CHARGER NOTE The AC 1NM is not supplied with the TR 300 See the Accessory section for order ing information The AC 1NM will charge the batteries in two TR 300 s simultaneously Insert the plug from the charger into the jack on the side of the TR 300 and plug the charger into a 110 volt outlet Full charge of the battery pack is...

Page 36: ...H THIS CHARGER Snap the terminal connector onto the battery holder and plug the charger into a 110 Volt out let Full charge of the battery pack is obtained after 12 to 16 hours A full charge will last 8 to 10 hours with ni cads and 12 to 15 hours with nickle metal hydrides Extensive over charging may damage or de stroy the batteries Please ensure the charging time dores not exceed 16 hours Figure ...

Page 37: ...131 000 AC 1NM Battery Charger Order No 70741 001 Includes 6 nickle metal hydride batteries and 1 carrier Charges 1 or 2 TR 300 s without re moving the battery pack BC 4NM Battery Charger Order No 70741 002 Includes 6 nickle metal hydride batteries and 1 carrier Charges 1 set of batteries outside of the TR 300 NMBP Battery Pack Order No 70741 003 6 nickle metal hydride batteries and carrier For us...

Page 38: ... the unit as fol lows Check the unit to see that all parts and screws are in place Then wrap it in heavy paper or put it in a plastic bag If the original carton is not available place the unit in a strong car ton that is at least six inches bigger in all three dimensions than the unit Fill the carton equally around the unit with resilient packing material shredded paper foam etc Seal it with gumme...

Page 39: ...of Telex equipment is the user s responsibility and licensability depends upon the user s classification user s application and frequency selected Telex strongly urges the user to contact the appropriate telecommunications authority for any desired clarification CAUTION Changes or modifications made by the user could void the user s authority to operate the equipment ...

Page 40: ...9600 Aldrich Ave So Minneapolis Minnesota 55420 U S A PN 80 Oct 1999 Made in U S A ...

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