The PID code of the "Broadcast Satellite TV" in the C-band of Asia Star II Yes 257, 258 The Application of PID Code in Satellite TV Reception Zhang Weihua The current digital satellite receivers (DVB) have the function of adding and modifying PID codes. PID codes are divided into graphic PIDs, video PIDs, audio PIDs and PcrPIDs (clock synchronization codes). PID codes have decimal (PID10) and 16 Hexadecimal (PID16, composed of digits 0-9 and A, B, C, D, E, F 6 letters) two kinds, such as the author uses the Heikewei 2000 S digital receiver to watch 105.5 ° E Yawei 3 S when the C-band satellite AIU TV (MATV), signal strength indication click button on the remote control, there will be some relevant information on the screen: program name MATV, local oscillator 5 150 MHz, downlink frequency 4 105.9 MHz, character Code rate 11.230, polarization mode level (H), graphic PID 0000, video PID 1310, audio PID 1320, PcrPID 1310, this machine PID code is decimal ....... Polycrystalline sillicon (also called: polysilicon, poly crystal, poly-Si or also: multi-Si, mc-Si) are manufactured from cast square ingots, produced by cooling and solidifying molten silicon. The liquid silicon is poured into blocks which are cut into thin plates. The solidification of the material results into cells that contain many crystals, making the surface of the poly-Si/ mc-Si cell less perfect than its mono-Si counterpart. Due to these defects, polycrystalline cells absorb less solar energy, produce consequently less electricity and are thus less efficient than monocrystalline silicon (mono-Si) cells. Due to their slightly lower efficiency, poly-Si/ mc-Si cells are conventionally a bit larger, resulting in comparably larger PV modules, too. This factor has to be considered if space is limited. Nevertheless, the advantage of poly-Si/ mc-Si cells is that they are easier and thus cheaper to produce. Poly Solar Cell,Solar Photovoltaic Cell,Most Efficient Solar Cell,Polycrystalline Solar Cells Wuxi Sunket New Energy Technology Co.,Ltd , https://www.sunketsolar.com