Telex BTR-300 Antenna Polarization, Vertically Polarized Antennas, Antenna Placement

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ANTENNA POLARIZATION

The Telex Wireless Intercom System is “Ver- tically Polarized”. This means both the trans- mitting and receiving antennas should operate in the vertical position.

RadioCom￿

TR-300

RadioCom￿

BTR-300

RadioCom￿

TR-300

Figure 13

Vertically Polarized Antennas

ANTENNA PLACEMENT

Proper antenna placement probably has the most effect on you TELEX Wireless intercom System’s overall performance. The following

Figure 14

Proper Dressing of the Antennas

Keep the distance between the base (BTR-300) and the belt pack (TR-300) anten- nas as short as possible. The greater the dis- tance, the weaker the signal. However, the portables should be a minimum distance of 10 feet from the base station and each other for best performance.

Make sure the “signal paths” between the BTR-300 and remotes are unobstructed. You should always be able to visibly locate the an- tennas for best performance.

suggestions will result in optimum perfor- mance.

Proper placement of the TR-300 can be criti- cal. The trailing antennas should “dangle” freely. “Wadding” the antennas up and placing them in a pocket, etc., will reduce system range.

RadioCom￿

TR-300

RadioCom

RadioCom￿

BTR-300

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.

-18-

TR-300

SIGNAL REACHES

 

ANTENNA AT FULL

 

STRENGTH WITH NO

 

OBSTRUCTIONS

Figure 15

Keeping Site Clear to Antenna

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Contents Telex Table of Contents General Description Block Diagram of SystemIntroduction Page Technical Information Specifications BTR-300 BTR-300 Base Station TransceiverFeatures ReceivePortable Enable Switches and Indicators Front Panel Refer to FigurePlug for Telex Unit Crophone GainPage Front Panel BTR-300 Rear Panel BTR-300 Technical Information Specifications TR-300 TR-300 BELT-PACK TransceiverPlug for Telex Units Jack for RTS Units Headset XLR Connector WiringControls and Connections External Controls, TR-300 Dynamic / Electret Equipment SET-UP BTR-300 SET-UPPin Wiring for Rear Panel Jacks Internal Intercom SwitchesRack Mounting Attaching Brackets for Rack MountingAntenna Connections Attaching 5/8-wave Antenna Wave Antenna AssemblyAntenna Information Remoting Antennas when Rack Mounted FT 60cm Minimum distance FT 2m Or more Is bestAntenna Placement Antenna PolarizationVertically Polarized Antennas Proper Dressing of the AntennasBTR-300 Antenna Placement Operating System Near ObstructionsLocal Headset Connection Headset Microphone Select SwitchTransmit Switch Interconnection to a HARD-WIRED Intercom System Typical Interface to Wired SystemDummy Load Connecting Auxiliary Audio SYS- TEMPower Connection DYNAMIC/ELECTRET Switch Battery InstallationTR-300 SET-UP Headset ConnectionPRE-WALK-THRU Checklist Power Local Headset VolumePush to TALK/LOCK-TO-TALK Switch System OperationBattery Check Low Battery/ Overmodulation Talk Indicator LightsHeadset Volume TR-300 OperationIntercom Switch Enable SwitchesEnabling Audio Portable TransceiversSetting System Gain Levels Adjusting GainBTR-300 Base Station TR-300 PortableSystem WALK-THRU Intercom GainAuxiliary Gain controls Auxiliary GainTroubleshooting Problem SolutionBattery Information BC-300NM1 Battery ChargerBC-300NM1 Battery Charger GeneralBC-300NM2 Battery Charger BC-300NM2 Battery ChargerAccessories Customer Service Information FCC Information JAN Made in U.S.A
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