Miner antenna

1. The adapter line has a great influence on the multi graphics card of mining machinery. Let's not mention the antenna effect of the adapter line itself and the influence of time delay on the mining performance. The poor quality of the optical adapter line itself causes poor contact, insulation damage and short circuit. Each problem not only affects the mining, but also may cause damage to the graphics card. Direct insertion can avoid this problem, Both efficiency and stability have been greatly improved.

2. The antenna and coil are not coupled. Just connect the antenna and ground wire together

3. 1、 Make a pit and fill it with water. Can be unlimited brush water on the line. 2、 Use electrical appliances to power on the instrial pump to pump water. 3. Automatically transfer it to the ore washing field

4. The antenna is difficult to set up. There are three types you can choose according to your own situation. 1. Cobweb type is directional antenna, which uses two wooden bars to nail a cross, and then install insulators (you can drill holes with an electric drill, insert a wooden stick, and fix it with latex), and then wrap it with enameled wire. When you place one with an empty head and the other with a coil, you can place it upside down. You can place the intersection of the wooden bars on the top of the wooden stick on the roof
2. T-type antenna is a non directional antenna. Connect the insulator with 40-50m wire and pull it up. Pay attention to straighten it. Then connect the coil to the outgoing line near the middle
3. L-type is also non directional, which is similar to T-type. It is only led out at one end of the wire
ground wire
ground wire. After a lot of experiments, I found that the effect of connecting the water pipe is very poor, because there are oxide and paint on the surface of the water pipe
it's the first time that I heard that connecting the AC ground wire upstairs would be dangerous
and the surface area of the ground wire is too small, at least 50cm2
it's better to use bare copper wire tray If you don't think it's detailed, you can ask me for a PDF file about the sky and earth line. I also have a lot of PDF files to send you

5. Crystal broadcast today, we are used to those who do not use power, only known as a radio circuit semiconctor device "ore radio". From the early detector element "Crystal Radio" was made by direct use of natural minerals, using the name of pressure, and having its position adjusted through a metal detector on the ore. Crystal radio is the simplest of all radio receiving equipment. Unless there is another antenna and ground wire close to the station, it is very elegant. Crystal radio antenna device, ground and basic tuning circuit and amplifier circuit composed of detector and passive radio, it is the simplest radio receiver, mainly used to receive public Polish Radio. Because the initial ore is used as a detector, it gets its name. After the invention of transistor, radio enthusiasts replaced it with germanium diode. China's old radio enthusiasts who play miner should remember 2ap9 full of nostalgic diode model. Simple crystal radio can have only one coil, variable capacitor and earphone detector, because it has only one tuning circuit and is called "single loop Crystal Radio". The world line equipped with the machine can accept local radio stations, but the single radio capability (selectivity) is not good, and "sound clips" often appear, That is, two or more stations have sound. In addition to such a simple form, it can also be two or even three ore radio circuits in order to improve selectivity, but without significant improvement in volume. Fine crystal radio needs: excellent world line, high Q value coil and variable capacitor, low forward voltage drop detection, high sensitivity, good impedance matching, many advantages: 1, no power supply; 2. The broadcast will still be heard in case of power failure or battery failure; 3. It can be used to test the efficiency of antenna or ground; 4. Ore is a very attractive machine, which can be used to guide beginners and children into the world of radio, radio and DIY; 5. The circuit is simple and easy to use; 6. Connect the power amplifier to listen to the best sound effect of AM broadcasting; 7. It can be used for life, saving maintenance cost.

6.

Brief introction of working principle:

1, use antenna to receive the energy of radio wave (high frequency signal), the longer and higher the antenna, the better the receiving effect

2 Send the signal from the sky to the tuning loop to "select" the station. The resonant circuit consists of inctance coil and variable capacitor

3“ "Ore" is a diode, which is used to pick up the wave: take out the audio signal from the high frequency broadcast signal "selected" in the tuning circuit

4 Use headphones to restore audio messages to sound

see:

7. Alumina is white originally. If it is black, it means it contains other compounds. If it is ore, it can be washed and separated by bauxite washing machine; It can also be separated at high temperature.

8. Because the power required to proce sound is certain, the real ore machine does not need power supply, only relies on the inced current generated by the antenna to do work. In order to get enough output power, it can only use a long antenna, and the voltage is relatively high. Therefore, it needs to be equipped with high impedance earphones, in order to get relatively large output power in the case of very small current.