Assistive Listening Systems Venture-Express Transmitter User’s Guide
Page ii Venture-Express User’s Guide Copyright Information © Copyright 1998 by Gentner Communications Corporation. All rights reserved. No part of this manual may be reproduced in any form or by any means without written permission from Gentner Communications Corporation. Printed in the United States of America. Original version, 1/96. Gentner Communications Corporation reserves specification privileges. Information in this manual is subject to change without notice.
Venture-Express User’s Guide Page 1 Introduction The Venture-Express portable transmitter results from years of surveying audiologists, sound contractors, consultants and end users. It is designed to provide every feature and function with the highest possible audio/RF performance and reliable operation while remaining affordable and easy to use. The Venture-Express has audio inputs for both microphone and line (i.e. tape or CD player). The two sources can also be mixed.
Page 2 Venture-Express User’s Guide range, and loss of high frequencies. The Venture-Express uses a system of program-dependent AGC with a proprietary frequency-shaping system to control dynamics and maximize voice intelligibility. This results in a clear, loud sound, and eliminates the need to constantly raise and lower receiver volume. Figure 1.
Venture-Express User’s Guide Page 3 Controls Power: Turns on/off the power to the Venture-Express transmitter Channel Select: Allow the user to scroll up or down through the 19 preprogrammed channels Memory Recall Buttons: May be programmed to any of the 19 channels for instant recall Display: LCD display shows the channel the Venture-Express is currently using. If tuned manually, the channel will be prefixed by a C (example: C-07).
Page 4 Venture-Express User’s Guide Figure 3. Venture-Express back view accidentally pulled out Belt Clip: Securely attaches the Venture-Express to the user’s belt for portable operation Battery Door: Venture-Express uses two AA batteries (alkaline or rechargeable Ni-Cad) Setup Antenna/Microphone The Venture-Express antenna is 2/3 internal to the PTX unit, 1/3 in the microphone cord.
Venture-Express User’s Guide Page 5 Also, ensure that you maintain line-of-sight contact with the receivers, so walls with large amounts of wiring, metal studs or concrete do not block or reduce the signal. Please Note: Any RF system is susceptible to “dropouts,” where reduced RF energy caused by reflections and cancellations results in a noisy signal. If this happens, try moving the transmitter or receiver around until the signal clears.
Page 6 Venture-Express User’s Guide Select Audio Input If a microphone will be used (normal operation), select the MIC position on the input selector. To feed audio from an outside source, select the LINE position and insert the audio cable from the external source into the line jack. For proper microphone operation, ensure the MUTE switch is positioned in the MIC on position. Operation Powering the Venture-Express Press the POWER button.
Venture-Express User’s Guide Page 7 FREQUENCY CHARTFrequency *Frequencies are in MHz Channel 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 *Frequency 216.025 216.075 216.125 216.175 216.225 216.275 216.325 216.375 216.425 216.525 216.575 216.625 216.675 216.725 216.775 216.825 216.875 216.925 216.
Page 8 Venture-Express User’s Guide Check the System Walk around with the receiver while an audio source is playing and check reception in all parts of the seating area. If there are more than a few dropouts, change broadcast frequency and try again. Using the Mix Function To use the mic and line inputs together, set the input selector in the MIX position. The relative levels can be controlled by varying the level into the line input (i.e.
Venture-Express User’s Guide Page 9 take the receiver to a place where the signal should be stronger. Since the Venture-Express is frequency-agile, you can set it to another channel and retune the receivers away from the interference. For multiple Venture-Express's operating in the same location, adjust the channel as far from the other unit(s) as possible. Transmitters should never be set to the same frequency in the same location.
Page 10 Venture-Express User’s Guide Transmission Type: FM modulation Max. Radiated Power: 11,310uV/m at 30 M Frequency Control: Digitally synthesized Crystal controlled Frequency Stability: .005% Frequency Selection: 19 channels, 216MHz Power Requirements: 2xAA batteries Current Consumption: Transmitting 150mA Notice Standby 0.5mA This transmitter is authorized by rule under the Low Power Radio Service (47 C.F.R.
Venture-Express User’s Guide Page 11 (AMTS) network control communications. Two-way voice communications and all other types of uses not mentioned above are expressly prohibited. This devise may not interfere with TV reception or federal government radar, and must accept any interface received, including interference that may cause undesired operation. The Venture-Express Assistive Listening Transmitter complies with Part 95 of the FCC rules.
Page 12 Venture-Express User’s Guide Warranty Gentner Communications Corporation (Manufacturer) warrants that this Assistive Listening System (ALS) product is free of defects in both materials and workmanship. Should any part of this equipment be defective, Manufacturer agrees, at its option, to: A.
Venture-Express User’s Guide Page 13 THIS WARRANTY IS VOID IF: A. The equipment has been damaged by negligence, accident, act of God or mishandling, or has not been operated in accordance with the procedures described in the operating and technical instructions; or, B. The equipment has been altered or repaired by other than Manufacturer or an authorized service representative of Manufacturer; or, C.
Page 14 Venture-Express User’s Guide In case of unsatisfactory operation, the purchaser shall promptly notify Manufacturer at the address set forth below in writing, giving full particulars as to the defects or unsatisfactory operation. Upon receipt of such notice, Manufacturer will give instructions respecting the shipment of the equipment, or such other matters as it elects to honor this warranty as above provided.
