Comtek BST-75 User Manual

SynthesizedBase StationTransmitterBST-75 OPERATOR’S MANUAL (72-76 MHz)357 West 2700 South • Salt Lake City, Utah 84115 • Phone: (800) 496

Page 8CHANNELFREQUENCYA #1B #2C #3D #4E #5F #6G #7H #8I #9J #10 72.1 MHz 72.3 MHz 72.5 MHz 72.7 MHz 72.9 MHz 75.5 MH

Page 9Frequency SelectionThe BST-75 transmitter comes from the factory on 10 standardmanually selectable channels. Other group frequencies are availa

Page 10BST-75 ACCESSORIESIncluded Accessories1. C-75 Carrying case2. BST-75 Operator’s manual3. TWA-75 Telescoping whip antenna4. AP-12

BST-75 ACCESSORIESPage 11Optional Accessories1. RDA-2B Remote dipole antenna2. PRA Phase-Right coaxial antenna3. PRA Phase-Right

Page 12Audio Inputs:Line level balanced input0 dBm for 80% modulation(+20 dBm max, XLR-3F)Unbalanced input (+5 dBm Max)or two wire electret microphone

WARRANTY AND SERVICEWarrantyCOMTEK transmitters and receivers are warranted to be free from defects inworkmanship and material under normal stand-alon

357 West 2700 South • Salt Lake City, Utah 84115 • Phone: (800) 496-3463 • Fax: (801) 484-6906 • www.comtek.com

© 2011 COMTEK® All rights reservedPrinted in U.S.A. 01-18-11TABLE OF CONTENTSIntroduction ...

The BST-75 mini base station transmitter meets the highestprofessional standards while offering outstanding valueand the most advanced technology avai

Equipment PlacementIf the BST-75 base station is to be rack mounted, a remote antenna mustbe used. The base station should be mounted away from equip

Remote AntennaWhen the BST-75 base station transmitteris to be rack mounted for permanentinstallation, a remote antenna mustbe used. The RDA-2B remot

Page 4Audio Input ConnectionsThe BST 75-216 base station transmitter uses an XLR-3F connector witha “Combo” phone jack. The XLR portion of the conne

OPERATING INSTRUCTIONSAudio Processing CircuitThe audio processing system incorporates a peak-level compressor toprevent over-modulation and reduce au

OPTIONAL ANTENNA: Used for mobile type applications.POWER SWITCH: Turns the transmitter on or off.POWER LED INDICATOR: Illuminates when the power

1278910BST-75 REAR PANELPOWER INPUT JACK: Requires 12V AC at 200 mA. Will also accept 12VDC with either positive or negative center pin (for field o