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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Telex ALP-450, 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 Telex ALP-450 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 Telex ALP-450. 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 Telex ALP-450 should contain:
- informations concerning technical data of Telex ALP-450
- name of the manufacturer and a year of construction of the Telex ALP-450 item
- rules of operation, control and maintenance of the Telex ALP-450 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 Telex ALP-450 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 Telex ALP-450, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Telex 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 Telex ALP-450.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Telex ALP-450 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
INSTRUCTION MANUAL General Description The ALP-450 is a broadband directional log peri- odic antenna. It will receive any frequency from 450 to 900 MHz. The “gain” of this antenna en- ables it to receive signals from a greater distance than a typical “whip” type antenna. Antenna Placement The ALP-450 should be placed in a position that has [...]
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Page 2
Microphone Stand Adaptor Attach the microphone stand adaptor using the screws and spacers supplied with it. See Figure 2. Angle Bracket Attach the angle bracket using the nuts, lockwashers, and screws supplied with it. Self tap- ping screws are supplied for securing the bracket to wood, metal, or other surfaces. See Figure 3. -2- Figure 2 Microphon[...]
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Page 3
Clamps Clamps are provided for mounting the ALP-450 on pipes, scaffolds, tree limbs, etc.. Attach the clamps with the hardware supplied. See Figure 4. Do not clamp the antenna to horizontal metal objects that extend past the clamp. See Figure 5. This will detune the antenna and cause loss of range and performance. -3- Figure 4 Clamps GOOD BAD Figur[...]
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Page 4
Coax Cable For best results, it is recommended that cable losses be kept under 4 dB. (Every 3 dB of signal loss re- sults in a system operating distance reduction of 25%). See the accessories section of this manual for spe- cial low loss cable assemblies. -4- Wall MOUNTING SUGGESTIONS Mic Boom Top Surface Mic Stand[...]
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Page 5
-5- Pipe or Scaffold Combination: Bracket with Clamps Tree Limb[...]
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Page 6
ACCESSORIES Special Low Loss Antenna Cables with TNC Connects Length Part No. 10 Ft. (3 meters) 690419 25 Ft. (7.6 meters) 71151-025 50 Ft. (15 meters) 71151-050 75 Ft. (23 meters) 71151-075 100 Ft. (30 meters) 71151-100 PRINTED IN U.S.A. Copyright© 1995 by Telex TELEX COMMUNICATIONS, INC. All rights reserved. 20 Sept 1995 -6-[...]