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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Audiovox FR142, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Audiovox FR142 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Audiovox FR142. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Audiovox FR142 should contain:
- informations concerning technical data of Audiovox FR142
- name of the manufacturer and a year of construction of the Audiovox FR142 item
- rules of operation, control and maintenance of the Audiovox FR142 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Audiovox FR142 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Audiovox FR142, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Audiovox service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Audiovox FR142.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Audiovox FR142 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
14 CHANNEL F AMIL Y RADIO SYSTEM MODEL # FR142 BEFORE OPERA TING THIS PRODUCT PLEASE READ THESE INSTRUCTIONS COMPLETEL Y © 2001 Audiovox Electronics Corp., Hauppauge, NY 1 1788 Printed in China 128-6020 052FR142104[...]
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Page 2
CONTENTS FCC W arnings .............................................................................. 1 Features ....................................................................................... 1 Precautions ................................................................................... 1 Unpacking .......................................[...]
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Page 3
1 FCC W ARNINGS This device complies with part 15 of the FCC rules, operation is subject to the condition that this device does not cause harmful interference. Use only the supplied antenna. Unauthorized antennas, modifications, or attachments could damage the transmitter and may violate FCC regulations. Features No Air T ime Fees and No License Re[...]
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Page 4
2 Battery Installation 3 1. (a) Lift the tab of the belt clip while (b) pushing the clip up to remove it. (c) Pull lock tab down and lift door up (towards you) to remove battery cover . 2. Insert four “AAA” batteries. Position batteries according to polarity markings. Reverse the steps in “1” to re-assemble. Note : • Make sure the battery[...]
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Page 5
4 5 Automatic Channel Scan Press and hold the UP or DOWN button to search signals. When the unit catches a strong signal , scan will stop for 5 seconds. If you want to stop at that channel, press the PTT or ENTER button. T o Send Call T one Call tone sounds like a telephone ring, and is convenient for quickly identify yourself to another party . Pe[...]
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Page 6
6 7 General Specifications Receiver 1. Sensitivity For 12 dB signal 0.25 µV 2. Max. audio output @ 10% THD 300 mW 3. Max. S/N ratio @ 1mV RF input 40 dB 4. Squelch Sens 0.2 µV 5. Audio frequency resp. @ 300 Hz ± 10 dB @ 3000 Hz ± 10 dB 6. Signal displacement BW ± 5 kHz 7. Adjacent CH. rejection 55 dB 8. Intermodulation rejection 55 dB 9. Spuri[...]