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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Midland Radio 79-290, 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 Midland Radio 79-290 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 Midland Radio 79-290. 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 Midland Radio 79-290 should contain:
- informations concerning technical data of Midland Radio 79-290
- name of the manufacturer and a year of construction of the Midland Radio 79-290 item
- rules of operation, control and maintenance of the Midland Radio 79-290 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 Midland Radio 79-290 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 Midland Radio 79-290, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Midland Radio 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 Midland Radio 79-290.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Midland Radio 79-290 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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2 TABLE OF CONTENTS Specifications Installation Location Mounting the Radio Ignition Noise Interference Antenna Tuning the Antenna for Optimum SWR External Speaker Operation Control and Indicators Front Panel Real Panel Operating Procedure to Receive Operating Procedure to Transmit Receiving SSB signals SPECIFICATIONS (CB) GENERAL Channels 40 CH/AM[...]
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3 TRANSMITTER Power Output AM 4 Watts SSB 12 Watts PEP Modulation AM/SSB Intermodulation SSB 3 rd order, more than -25 dB Distortion 5 th order, more than -35 dB SSB Carrier Suppression 55 dB Unwanted Sideband 50 dB Frequency Response AM 350 to 2500 Hz RECEIVER Sensitivity .50 uv AM .25 uv SSB IF Frequency AM/FM: 10.695 MHz 1 st IF, 455 kHZ 2 nd IF[...]
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4 Your new Midland model 79-290 represents cutting edge technology in the communications field. From its high tech de tachable control panel to finned cast almuinum transmitter heatsink it incorporates features found on no other CB. These features include full surface mount technoloy, fiberglass printed circuit board, dual power output stage, and a[...]
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5 Use of a mobile receiver at low signal levels is norm ally limited by the presence of electrical noise. The primary source of noi se in automobile installations is from the vehicle itself. If the CB operates quie tly with the car motor turned off it’s most likely that the car electrical system is generating noise. In some ins tallations ignitio[...]
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6 antenna is shortened. By continuing to shorten the antenna you will notice the SWR reading will reach a low point and then start rising again. This means that you have passed the optimum point for Channel 20. Extend the antenna a short distance and again follow the procedure above. B. Antennas which must be cut to proper length. 1. Follow the sam[...]
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7 FRONT PANEL DRAWING 1 . ON/OFF VOLUME (inner dual concen tric). Turn clockwise to apply power to the unit and to set the de sired listening level. During normal CB operation, the VOLUME control is used to adjust the output level obtained either at the transceiver speaker or the external speaker, if used. 2. SQUELCH (outer dual concentric). This c[...]
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8 6. WX BUTTON. Press this button for instant selection of the NOAA weather bureau or Canadian receiver. Select the proper channel, with the rotary channel selector, for your area. It is normal to hear the same information on more than one channel, select the channel with best sound. To return to CB operation, push the WX button again. 7. MEMORY CH[...]
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9 16. SC INDICATOR. LCD indicator showing wh en the scan mode is activated. 17. MIC INDICATOR. LCD indicator showing when the low power microphone mode has been selected. 18. LOC INDICATOR. Indicates the local mode of receive has been selected. 19. FRQ BUTTON. Pressing this button causes the LCD to switch between channel and 5 digit frequency displ[...]
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10 PRESS-TO-TALK MICROPHONE The receiver and transmitter are controlled by the press-to-talk switch on the microphone. Press the switch and the tran smitter is activated, release switch to receive. When transmitting, hold the microphone 2 in. from the mouth and speak clearly in a normal ‘’voice’’. The radio comes complete with a low- impeda[...]
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11 1. Be sure that power source, microphone and antenna are connected to the proper connectors before going to the next step. 2. Turn unit on by turning the VOL control clockwise on your transceiver. 3. Set the VOLUME for a com fortable listening level. 4. Set the “BD” button to the desired mode (AM/USB/LSB). 5. Listen to the background noise f[...]
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12 An SSB signal may be received only when the listening receiver is functioning in the same mode. In other words, an upper sideband signal (U SB) may be made intelligible only if the receiver is functioning in the USB position. If a lower sideband (LSB) signal is heard when the receiver is in the USB mode, no amount of tuning will make the signal [...]
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13 which fails due to a defect in material or workmanship within one y ear following the initial consumer purchase. This warranty does not include any carrying cases, earphones, or telescoping antennas which may be a part of or included with the warranted product, or the cost of labor for removal or re-installation of the product in a vehicle or ot[...]