1. CVBS composite video signal
Transmission signal: Luminance signal and chrominance signal are superimposed together through spectrum interleaving. Because the luminance and chrominance signals are mixed, the CVBS signal needs to be separated for bright colors, and a good comb filter can obtain high-quality bright color separation. The grooming filter is only useful for bright color separation of TV signals and CVBS signals.
2. S-Video input
With the development of the S-VHS video recorder, the video interface transmission signal is transmitted separately because the brightness signal and the color signal are transmitted separately, thus avoiding the problem of bright color crosstalk of the CVBS signal.
3. Y Pb Pr color difference input
The standard video interface of the United States and China: The brightness signal and the color difference signal of the transmission signal are transmitted separately, which is of course better than the synthesis of S-video's PB and PR into C signals and then transmission. The image quality of the color difference signal and the RGB three primary color signals is equivalent, but the color difference port of 3 RCA can transmit progressive signals or 1080I signals. In terms of color difference input, there are basically no manufacturers who follow the rules, and the wording of each product may be different. Some products are marked with "Y CB CR" indicating that interlaced color difference signals are acceptable, while "Y PB PR" indicates progressive color difference signals or HDTV color difference signals, and "Y CB/PB CR/PR" indicates that interlaced/progressive color difference signals can be automatically identified. Line color difference signal. In real life, the actual description of the product should be used to determine the acceptable format of the device, not what it "writes". In the professional field, "Y CB CR" means digital color-difference signal instead of analog color-difference signal Y cb cr.
4. SCART
Transmission signal-European standard video interface: SCART interface transmits CVBS signal, interlaced RGB signal, usually manufacturers use SCART to transmit RGB signal. Since the three primary color signals are transmitted separately, they perform better than S-Video in terms of chrominance. SCART currently only has a standard for transmitting 480I/576I interlaced signals. 21-pin European audio and video signal cable.
5. VGA-PC 15-pin VGA input interface
Transmission signal: VGA interface can transmit all signals except 480I/576I signal. The minimum signal standard of the VGA interface is the VGA format, so the VGA interface may not support 480I/576I with too low specifications. Generally, the VGA interface of the projector can accept 480I/576I signals, while the VGA interface of kinescope equipment (TV and computer monitors) does not accept 480I/576I signals. The VGA interface contains the I2C bus, so the host and the display device can negotiate and automatically determine the best display format to use, achieving "plug and play".
6. RGBHV input
RGBHV usually uses 5 BNC or 5 RCA sockets, VW11HT has 5 RCA sockets. If you want to connect the PC's video output to the VW11HT, you need a VGA-5 RCA adapter cable.
Transmission signal: RGBHV transmits the same video signal as the VGA interface. Since in the 5 BNC connection, RGB and HV signals are respectively transmitted using a professional BNC cable, unlike VGA, all signals are in the VGA cable, so the transmission characteristics of 5 BNC are better than VGA. Coupled with the good contact performance of the socket (self-contained screwing device), 5 BNC is usually used in the field of dedicated display.
7. DVI-Digital Visual Interface
DVI interface due to P&D considering too much "compatibility", and the maximum transmission speed of DFP is limited, VESA has formulated the DVI standard. DVI supports two sets of TMDS signal transmission, up to 2048*1536@Hz format, so it can be applied to video transmission from ordinary projectors, plasma displays, LCDs to professional workstations. DVI is widely used in projectors and plasma displays. About 30%-50% of mid-to-high-end products have DVI interfaces. In the US market in 2003, it is estimated that 70% of HDTV equipment will be equipped with DVI/HDMI input.
8. USB interface
There are many projectors with a USB interface, and they are usually only used to transfer picture files.
9. IEEE1394
IEEE1394 can be used to transmit MPEG2 digital images. Since IEEE1394 requires a more complex and expensive decoding system, projectors equipped with IEEE1394 are also rare. Ordinary optical fiber output (TOSLINK) only supports Dolby Digital/DTS transmission, and cannot support high-speed data transmission of DVD-A and SACD. Therefore, in high-end products, IEEE1394 is used to transmit digital audio.
10. P&D interface
The standards established by the Video Electronics Standards Association (VESA) in the past few years have not been widely used. The P&D interface transmits a set of TMDS (TIming Minimized Differen TIal Signal), two sets of IEEE1394 and a set of USB signals. It is a universal digital signal interface. "Too universal" is also one of the reasons for the failure of the P&D interface, because there are too many aspects to consider, which leads to high costs and cannot be widely used. In the PC application field, P&D only supports up to 1600*1200@60Hz, which is one of the reasons why P&D cannot be accepted by everyone.
11. DFP interface
VESA has developed a simplified interface considering that the P&D interface is too complex. The DFP interface only transmits digital video signals encoded by TMDS, and no longer transmits the IEEE1394 and USB signals of the P&D interface. Like P&D, it only supports up to 1600*1200@60Hz, so it cannot be used in the professional video field.
12. HDMI-high definiTIon mulTImedia interface high-definition multimedia TV
The HDMI interface also has only one set of TMDS signals, so it is back to the starting point of DFP in the propagation format, and the HDMI interface itself is very similar to DFP. The improvement of HDMI over DFP is the addition of copyright protection HDCP while adding digital audio transmission, thus becoming a dedicated multimedia information interface. HDMI supports 1920*1080P high-definition digital signal, and supports Dolby Digital/DTS digital audio format. HDMI is expected to become the standard interface for future video equipment. In the second half of 2003, various devices with HDMI will appear one after another.
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How far(long) the transmitter cover?
The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.
EXAMPLE 5W FM Transmitter use in the city and hometown:
I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).
I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).
I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).
Below are the approximate range of different power FM Transmitters. ( The range is diameter )
0.1W ~ 5W FM Transmitter ：100M ~1KM
5W ~15W FM Ttransmitter : 1KM ~ 3KM
15W ~ 80W FM Transmitter : 3KM ~10KM
80W ~500W FM Transmitter : 10KM ~30KM
500W ~1000W FM Transmitter : 30KM ~ 50KM
1KW ~ 2KW FM Transmitter : 50KM ~100KM
2KW ~5KW FM Transmitter : 100KM ~150KM
5KW ~10KW FM Transmitter : 150KM ~200KM
How to contact us for the transmitter?
Call me +8618078869184 OR
Email me [email protected]
1.How far you want to cover in diameter ?
2.How tall of you tower ?
3.Where are you from ?
And we will give you more professional advice.
About Us
FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
Our solution has FM Radio Station / Analog TV Station / Digital TV Station / Audio Video Studio Equipment / Studio Transmitter Link / Transmitter Telemetry System / Hotel TV System / IPTV Live Broadcasting / Streaming Live Broadcast / Video Conference / CATV Broadcasting system.
We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
FMUSER.ORG has been exporting more than 15 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services. Contact email : [email protected]
Our Factory
We have modernization of the factory . You are welcome to visit our factory when you come to China.
At present , there are already 1095 customers around the world visited our Guangzhou Tianhe office . If you come to China , you are welcome to visit us .
At Fair
This is our participation in 2012 Global Sources Hong Kong Electronics Fair . Customers from all over the world finally have a chance to get together.
Where is Fmuser ?
You can search this numbers " 23.127460034623816,113.33224654197693 " in google map , then you can find our fmuser office .
FMUSER Guangzhou office is in Tianhe District which is the center of the Canton . Very near to the Canton Fair , guangzhou railway station, xiaobei road and dashatou , only need 10 minutes if take TAXI . Welcome friends around the world to visit and negotiate .
Contact: Sky Blue
Cellphone: +8618078869184
WhatsApp: +8618078869184
Wechat: +8618078869184
E-mail: [email protected]
QQ: 727926717
Skype: sky198710021
Address: No.305 Room HuiLan Building No.273 Huanpu Road Guangzhou China Zip:510620
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English: We accept all payments , such as PayPal, Credit Card, Western Union, Alipay, Money Bookers, T/T, LC, DP, DA, OA, Payoneer, If you have any question , please contact me [email protected] or WhatsApp +8618078869184
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PayPal.  www.paypal.com
We recommend you use Paypal to buy our items ,The Paypal is a secure way to buy on internet .
Every of our item list page bottom on top have a paypal logo to pay.
Credit Card.If you do not have paypal,but you have credit card,you also can click the Yellow PayPal button to pay with your credit card.
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But if you have not a credit card and not have a paypal account or difficult to got a paypal accout ,You can use the following:
Western Union.  www.westernunion.com
Pay by Western Union to me :
First name/Given name: Yingfeng
Last name/Surname/ Family name: Zhang
Full name: Yingfeng Zhang
Country: China
City: Guangzhou
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T/T . Pay by T/T (wire transfer/ Telegraphic Transfer/ Bank Transfer)
First BANK INFORMATION (COMPANY ACCOUNT):
SWIFT BIC: BKCHHKHHXXX
Bank name: BANK OF CHINA (HONG KONG) LIMITED, HONG KONG
Bank Address: BANK OF CHINA TOWER, 1 GARDEN ROAD, CENTRAL, HONG KONG
BANK CODE: 012
Account Name : FMUSER INTERNATIONAL GROUP LIMITED
Account NO. : 012-676-2-007855-0
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Second BANK INFORMATION (COMPANY ACCOUNT):
Beneficiary: Fmuser International Group Inc
Account Number: 44050158090900000337
Beneficiary's Bank: China Construction Bank Guangdong Branch
SWIFT Code: PCBCCNBJGDX
Address: NO.553 Tianhe Road, Guangzhou, Guangdong,Tianhe District, China
**Note: When you transfer money to our bank account, please DO NOT write anything in the remark area, otherwise we won't be able to receive the payment due to government policy on international trade business.
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* It will be sent in 1-2 working days when payment clear.
* We will send it to your paypal address. If you want to change address, please send your correct address and phone number to my email [email protected]
* If the packages is below 2kg,we will be shipped via post airmail, it will take about 15-25days to your hand.
If the package is more than 2kg,we will ship via EMS , DHL , UPS, Fedex fast express delivery,it will take about 7~15days to your hand.
If the package more than 100kg , we will send via DHL or air freight. It will take about 3~7days to your hand.
All the packages are form China guangzhou.
* Package will be sent as a "gift" and declear as less as possible,buyer don't need to pay for "TAX".
* After ship, we will send you an E-mail and give you the tracking number.
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For Warranty .
Contact US--->>Return the item to us--->>Receive and send another replace .
Name: Liu xiaoxia
Address: 305Fang HuiLanGe HuangPuDaDaoXi 273Hao TianHeQu Guangzhou China.
ZIP:510620
Phone: +8618078869184
Please return to this address and write your paypal address,name,problem on note: |
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