Evaluation of three popular low-cost digital satellite receivers (Part 3)

The second type refers to more advanced channel editing. The user can delete unnecessary channels arbitrarily, move the position of the channel arbitrarily, and arrange the order of the channels at will. These operations should be carried out in the "program table setting" submenu of the main remnant list. The operation menu is as follows: Take the Asia Pacific 1A program table as an example, of which 0006 and 0007 are only test color bars. If you need to delete, just use the Use the up and down keys to move the cursor to the line 0006, then use the left and right keys to move the cursor to the delete column, press OK, an X will appear in the delete column, then just press the EXIT key to exit the menu, the channel will be automatically deleted Too. If the user prefers to watch Zhejiang Satellite TV at 0009 and wants to put this station in the second set next to the center, then just use the up and down keys to move the cursor to the line 0009, and then use the left and right keys to move the cursor to " In the "Move" column, press the OK button, and an up and down arrow appears in the corresponding moving column. Press the up and down buttons to move the current channel to your favorite position.

Sixth, the only remaining two-layer sound receiving function. The author once wrote a special article on the issue of receiving broadcast programs from various domestic and provincial stations. Some broadcast programs on provincial and provincial stations must be received by a digital machine with two layers of sound. Today, the only receiver with this function is this machine. And what is surprising is that on the basis of receiving double-layer sounds, for broadcast programs transmitted on multiple virtual channels, the machine can also display the situation of 3 or 4 sets of sounds at the same time, and switch between multiple sets of sounds. For broadcast enthusiasts, it is very valuable. To switch between the sound mode or the double-layer menu, just press the left arrow key on the remote control, and the menu appears for operation.

The user can adjust the radio or television sound on the corresponding sound layer and channel through the left and right keys and up and down keys on the remote control.

Jintaike attaches great importance to technical and service work (Note: the author personally thinks), the newly developed 2.05a digital machine, the motherboard PCB has been re-routed, simplified circuit design, can be called the most concise DVB-S motherboard at present One. However, considering the problems of heat dissipation and stability, the machine parallel reduces the PCB area. In terms of power supply, it has always been Jintaike's strong point. Now the machine has once again improved the power supply design and added a lightning protection circuit. This function is very useful in rural areas and is highly valued and welcomed by users. The Switching Power Supply is changed to FAIR CHILD integrated PWM controller IC, which contains a variety of protection circuits, which greatly improves the reliability of the power supply.

This machine is also excellent in compatibility. It can receive Korean programs on 113 and 116 degrees, and it can be well compatible. The effect of watching Korean stars is very good.

Using this machine to actually watch 15 sets of digital programs from the central and provincial stations on Asia Pacific 1A. Compared with the analog programs on the satellite, the effect is really different. The noise in the analog programs and the unpleasant sounds on the sound, Especially when it is red and green, it is never seen again, and the image is much brighter and more pure. Watch the documentary of the Xiamen Yuanhua case broadcast on CCTV's "News Investigation" section, and interview some detainees in prison. The footage can even compare to the DVD. Using the new star Shandong, Zhejiang, and Yunnan stations to do digital analog program AB switching comparison, the effect is more obvious. A user from a rural area who has watched the Asia-Pacific 1A analog program for many years, purchased it immediately after the live AB switching demonstration made by the author. After the integration of this machine, it was decided to eliminate the simulation machine that has been used for many years.

The better digital satellite receiver

This digital machine, only 34 cm long, is the narrowest of the digital machines, with a height of 6.8 cm, which is a few cm higher than other machines. The overall appearance gives a thick and flexible feeling. On the left side of the panel are the better trademarks and switches. The basic operation keys on the right side of the machine include the MENU key, the up, down, left and right keys and the OK key. If there is no remote control, the machine can also be operated through the panel. The display window in the middle is an inverted ladder composed of curves. Above it are two lights, one red and one green, representing the power-on and locked signal states respectively. In the middle is the yellow-green channel digital display. There is a power switch on the back panel, two sets of AV output, a set of S terminal, a set of RS232 interface. The tuner interface is one of one type. It is not difficult to see that this unit is also a practical and popular receiver at a low price.

This machine has all the basic functions that the popular tree seed machine should have, including 22KHz switch, DisEqC switch, PID code addition, etc.

This machine also uses the Fujitsu solution. In the current market, the digital machine solutions are nothing more than ST5500, Fujitsu and LSI. Among them, the ST5500 solution has a greater influence in the world and a relatively high positioning. Among the mainstream brand digital machines with a relatively high share in the Chinese market, Probably only Jin Taike is still using this program. The SLI program can be more comprehensive, and the grade is not low, relatively speaking, the price can not be very low. The Fujitsu solution is completely developed for the Chinese market, with simple functions, comprehensive and practical, very simple operation, and a very high practical type. Although it is too simple for many audiophiles, it is particularly suitable for ordinary users.

Because the structure and function of the operation menu of this machine are familiar to everyone, I will not describe it here.

Although many machines are using the same scheme of Fujitsu, in the fierce market competition, each machine is trying to develop some more features with its own characteristics. One of the features of this book is that when adjusting the satellite antenna, in addition to displaying the signal strength and quality on the menu, the machine also displays the signal quality on the display window of the panel, which is also a feature of this machine. The general Fujitsu solution digital machine, when receiving an encrypted channel, encounters a black screen phenomenon, the TV screen is very provocative, and even affects the channel switching, but when the machine encounters a black screen, the screen is very stable, and it is also easy to switch channels .

The remote control of this machine is up to 18 cm long, 5 cm wide and 2 cm thick at the thickest, giving people a generous feeling. The remote control is thick at both ends and thin at the middle, so it is very comfortable to operate in your hand. The keys of the remote control are relatively large, and it is also very easy to operate. In addition to the basic operation buttons, several shortcut keys are particularly practical. Press the INFO button on the remote control, you can directly display various parameters of the current program, including PID code. Press II /? Key, the image can be paused. Press the SEARCH key, you can directly enter the increase menu.

This machine also performed satisfactorily on compatibility. When receiving Korean programs on two satellites of 113 degrees and 116 degrees, it did not find any problems in compatibility, and it was very suitable for watching Hanxing programs.

Although all kinds of receivers, including some imported machines, are renovated at present, but in terms of sound quality, the author's most recommended is still the first-class high-quality Gaussian GSR-5000 digital machine recognized by audiophiles. For some programs with better sound quality and picture quality, I like to use JVC's S-VHS recorder to provide the program source digital machine is the machine. Facing the cruel and realistic situation in the domestic market, Gauss Bell is also changing its strategy. GSR-5000 has been fully launched in the market. Its latecomers such as 5000D, 3000, Flange and other models and brands have made a large price. The adjustment has produced a good response in the market, which illustrates the correctness of some domestic enterprises to adopt a popular low-price strategy from another aspect. I personally used to pursue high-quality audio-quality programs, but I understand and respect the economic conditions and actual needs of most ordinary users. Low price does not mean low quality. In terms of land price, there are many worlds for digital machine manufacturers to play. For example, this machine, although it is the most common Fujitsu solution at present, but in terms of picture quality, especially in brightness, Different responses to performance.

Using this machine to actually receive CCTV's digital programs and watch the "Focus Interview" program after the news broadcast, compared with cable TV, both the purity of the colors and the clarity of the images are much better. Through the decoded image of the digital machine, the grade of the advanced digital recording and editing equipment of the Central Station is displayed. The facial details of the characters are clear, the edges of the image are sharp, the background color of the studio is vivid, and the entire picture is clear and clear. Even on a 34-inch Toshiba flat-screen TV, the performance is still so good. Watching 11 sets of central opera dramas and Peking Opera costumes on this machine, it feels more dazzling and eye-catching, and the face color after makeup is restored just right. In terms of sound, it also obviously surpasses that of cable TV, not only can't hear noise at all, but also has much lower distortion. (End of full text) var check_allow = "/d/Api/iscantalk.html"; var add_url = '/ d / article / write /'; function CheckLogin () {now_uid = ''; var ElecfansApi_checklogin = '/ webapi / passport / checklogin'; var logout_url = "{: U ('Login / logout')}"; var logout_url = 'http://bbs.elecfans.com/member.php?mod=logging&action=logout&refer=front'; $ .get (ElecfansApi_checklogin, function (data, textStatus) {if (data! = "") {EchoLoginInfo (data); CheckEmailInfo (data); data = $ .parseJSON (data); now_uid = data.uid; / * var login_content = 'write an article