6、 Support multi-tuner control switch
DM500 can support the 13/18V satellite switch, you can set up 32 high-frequency information at most. Of course, it also support the polar axis. The other big advantage about DM500 satellite receiver is that DM500 just need to enter the parameter with the remote control directly.
7、 Smart-card reader
DM500 has a smart card reader port, you can see the card's icon. My personal feeling is that it's not enough for the user who is using the car to watch TV programs. There are three reader ports of the Thunder 430XP, which is popular now. DM500 can offer shared key by using the CV12/A2 shared box to decrypt the encryption units. You will see the detail below.
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