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Common problems and solutions when radio:1: Televisions, fluorescent lamps, silicon dimming desk lamps, computers, car engines, electric motors and other electrical equipment have strong radiation interference to the radio’s medium wave and short wave. When using the radio, please keep a certain distance from the above electrical appliances. Avoid interference.
2: The interior of the steel-reinforced building and the high-rise buildings around the listening site have a certain shielding effect on the broadcast signal. Using the radio near the window can improve the receiving effect.
3: Near the listening location“BB” The signal transmitted by the machine will seriously interfere with the listening of shortwave and TV audio. Try to shorten the length of the whip antenna and adjust the angle, and at the same time, change the different listening positions to improve the reception.
4: The easiest way to improve the shortwave reception capability is to add a simple external antenna to the radio, that is, use a 3-4 meter long wire, one end is wrapped around the whip antenna, and the other end is hung outside the window. The higher the effect, the better.
Radio maintenance
One anti-dust problem
Dust can enter the machine through the small hole on the radio speaker. After a long time, it will inevitably affect the sound effect of the speaker, especially in public places with a lot of dust. This problem is particularly serious, so it is necessary to talk about this problem:
1. Try to listen in a clean place, if you are at home, don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t put the radio in the living room or near the window or door（The antenna can be made longer）When you don’t listen, it’s best to put it in a cabinet or other closed things, and then take it out when you listen. If you find it too troublesome, you can cover it with a paper box.（It’s more troublesome to use something like a TV cover, and it’s easy to wear the case.）, Or just put it in a paper box, the dust will never invade（Note that the box should not be placed randomly, it is better to put it in a relatively clean place）. But it is best to put it in the cabinet when cleaning the house.
2. When you take it out to listen, it is best to add a leather case and put it in your pocket and listen with headphones, so as to prevent the intrusion of dust（Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t be stingy with your holster, drill a small hole）.
3. If there is a sudden rise, it depends on watching and rubbing, then make sure that the surrounding environment is very clean, and it is best to clean it with a small brush after finishing.（Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t break the circuit）.
Two anti-wear problems
1. Do not frequently pack it into the original box and the original plastic packaging. These things are relatively tight and easily scratch the case. If it is a dust-proof box, it should be looser. Do not choose and A box about the same size as the machine, a bigger one is better.
2. Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t frequently put in and out in the leather case, unless you are going out（Of course R101 can be listened normally in the leather case）.
3. The radio should be placed on a flat, smooth but not too slippery surface（You can put a piece of paper or something on the table first, and put it on the paper, or other softer things.）, The hard surface will wear down the bottom of the radio（Who can say that he is holding it with both hands and placing it on a table or something at an angle completely perpendicular to the horizontal plane, so it is best to keep the contact surface not very hard.
4. When holding it, don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t hold it too tightly, as it will compress the case, and it shouldn''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t be too loose. Sliding will also cause wear. It is best to place it flat in your hand.
Three earthquake problems
This question is relatively simple, just one word"light";, how light is it? It’s okay to be lighter than your own glasses. When holding and releasing, the movement should be light, and it should be placed in a relatively stable place without vibration.（First stabilize the bottom of the furniture.）. Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t run to listen（No matter how good the quality of the radio is, it’s better not to be like this）, It’s best not to listen when riding, not only for the radio, but more importantly for safety.
Four other issues
1. Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t put it in a room with direct sunlight, especially in summer, where the temperature is very high, and don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t place it in a humid room with poor air circulation. The parts are easy to rust in a long-term environment with high humidity.
2. For the maintenance of the antenna, if there is an external antenna, connect it directly to the whip antenna. If the whip antenna can be used less, use less. When the screw of your radio whip antenna is loose, you can use it when you hold it by hand. Know the correctness of doing so.
3. For the maintenance of the earphones, don’t overwhelm the earphone cable arbitrarily, make sure the cable is stretched and smooth, don’t pull it, if you want to put it away（For example, if you’re going on a business trip for 1 month and don’t use this headset）, You should fold gently along the original crease, and don’t use too much force. Finally, use the original small Dongdong who strapped the earphones.（iron wire?）Gently pull it, don’t pull it too tight, just make sure it won’t break away by itself, actually just make a circle, there is no need to tighten it too much. Also, if the headphone cord is often in contact with hands or skin that is not too clean, especially sweat, the headphone cord will easily become dirty and hard. My earplugs have been used like this for two years, and the thread is still soft as before, which shows that this is still a bit useful.
4. For some maintenance of the external antenna, it is best to install it close to the wall to prevent rain as much as possible. For safety, a lightning protection device should be installed, and the fixing should be relatively firm to avoid the influence of wind.
Pay attention to the following when using the radio:
1. When using dry batteries, do not install the reverse polarity. After replacing the batteries, replace all the original batteries.
2. When rotating the switches and telescopic antennas, do not move them too violently to avoid twisting the switches and breaking the antenna.
3. When looking for a station, you can turn the tuning knob and move around the station until the sound is loudest and clearest.
4. The radio has a certain directionality. When the reception effect is not good, you can rotate the body or change the position to get the best reception effect.
5. When a radio with stereo function is receiving a stereo program, it should be adjusted until the stereo indicator light turns on to hear a satisfactory stereo effect.
6. When connecting speakers or earphones, pay attention to impedance matching, so as not to affect the listening effect and damage the radio.
The radio should be paid attention to in the usual maintenance:
1. The radio should be placed in a dry and ventilated place, and cannot be dropped or touched. Be dust-proof and avoid direct sunlight.
2. After the radio is inadvertently flooded and damp, it must be placed in a ventilated place and dried thoroughly before being energized. It should not be exposed to the sun or dried.
3. When not in use for a long time, the battery should be taken out to prevent the battery from leaking and corroding the parts. It is best to be energized and used once regularly.
4. The radio should be cleaned regularly. Wipe gently with a dry cloth when cleaning, and do not wash with water.
5. Don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t change the position of adjustable components in the radio at will.