30Km long distance COFDM HDMI Wireless Video Transmitter FAQ
30Km long distance COFDM HDMI Wireless Video Transmitter Receiver Full Set Audio Video TX RX for UAV Drone 1080P 908T
30-150Km-mamaʻo COFDM HDMI Transmitter wireless video receiver full seti video TX RX ki UAV te UGV 1080P
Konga
- Fengaue'aki lahi, fokotuʻutuʻu ʻo e fokotuʻutuʻu kuo fakatahaʻi
- Ko hono fakaʻaongaʻi ʻo e COFDM modulation tekinolosia, H.264 image coding technology
- ʻE lava ke ne ʻomi ha senolo ʻe taha ʻo e 1080P HDMI (SDI fili pē) fakaʻilonga
- Toloi maʻulalo ange, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 naʻe ʻikai ke ʻi ai ha me.
- Fetu'utaki kotoa pe, 'ikai manavasi'i ke langa ha ngaahi holisi
- Fetuʻutaki vave ʻi he vahaʻa ʻo e fononga, the maximum moving speed can reach 600 km/houa.
- Transmitter e faʻahinga ʻo e ʻea vela, shockproof, Waterproof case is optional.
- Poupouʻi ʻa LOSI mo e ʻikai ke mamata (NLOS) feʻaveʻaki toʻoto
- ʻOku ʻikai siʻi hifo ʻa e mamaʻó ʻi he 30 kilomita ʻe kilomita ʻe 10 ʻi he tuʻunga ʻo e vakai ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Synchronous hono maʻu ʻo e ongo mo e fakaʻilonga vitioo, fakaʻuhingaʻi maʻolunga HDMI1080P fakavahaʻa-taʻu, tuʻunga lelei ʻo e DVD ʻoku fakaʻuhingaʻi ʻaki e standard-Definition
- ʻE lava ke ʻiloʻi ʻe he tokotaha ʻokú ne puke atu e fakamafolá ʻa e ngaahi ngāue hiki vitiō mo e backup
- 128-kiʻi encryption mo e decryption
- Customization kakato maʻu
- Upgrade tool: Parameter Configure board
- Faka'aonga'i: UAV, Ngaahi Meʻalelé & UGV
- Modulation: COFDM
- Ngaue voltage: DC11V-DC13V
- Lolotonga ngaue: 0.5~2W (ʻo makatuʻunga ʻi he pa kehekehe)
- Mālohi ʻo e feʻaveʻ: 0.5W~20W optional
Fakahokohoko ʻo e Tohi
Faka'aonga'i
ʻOku fakaʻaongaʻi pe ʻa e koloa ko ʻeni ʻi he reconnaissance fakatekinikale mo e fakamoʻoni kuo tanaki ʻo e ngaahi Potungaue ki he malu mo e malu ʻa e kakai, ʻimisi moʻoni ʻo e unmanned aerial ngaahi meʻalele, vaka unmanned, lele fakaletio mo e televisone, ngaahi fakamafola hangatonu ʻi he letioó mo e televīsoné: feituʻu ki he fakamafolá, fakamafola sipoti, ongoongo fakasosiale, moʻui ʻi he ʻe, Studio, mountaineering fononga, mo e ngaahi tafaʻaki kehe. ʻOku feʻunga ia mo e feʻaveʻaki taimi totonu ʻo e ngaahi ʻata lelei ʻi ha ngaahi ʻatakai faingataʻa kehekehe hange ko e ngaahi feituʻu ʻi he feituʻu kolo, ngaahi tahí, mo e ngaahi moʻungá.
Fakapapauʻi ʻo e Transmitter
founga ki hono fakaleleiʻí | COFDM |
ngaue voltage | DC11V ~ DC13V |
lolotonga ngāué | 0.5 Watts: ≤0.6A DC12V, 1 Watts: ≤0.8A DC12V, 2 Watts: ≤ 1.5 A DC12V 5 Watts: ≤3.0A DC12V 10 Watts: ≤5.0A DC12V 20 Watts: ≤7.0A DC12V |
control interface | standard RS232 interface, 8 Ngaahi Kongokonga ʻo e Fakamatalá, 1 Skonga ki ʻolunga, Parity Bit, Vave ʻo e Baud: 19200 |
Interface ki he fakamatala ʻoku ʻikai puli, | ko ha founga ʻoku ʻikai puli hono fakahokohoko (serial port transmission), 8 Ngaahi Kongokonga ʻo e Fakamatalá, 1 Kiʻi Taʻofi, poupouʻi ʻa e Parity ngali kehe, Parity Bit, Wireless Parity, Vave ʻo e Baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
ngaahi founga encryption | poupouʻi ʻa e encryption konga 128 |
mape ki he liliu ʻo e kōmí | QPSK (4QAM), 16QAM, 64QAM |
fakatonutonu ki muʻa e fehālākí | 1/2 2/3 3/4 5/6 7/ 8 |
Vaha'a 'o e kau le'o | 1/32 1/16 1/8 1/4 |
Fika uta koloá | 2KILOMITA |
Tuʻo lahi bandwidth | 2 / 3 / 4 / 5 / 6 / 7 / 8M Adjustable |
stream ʻa e code transmission | 2000kbs~20000kbs Adjustable |
ʻave ʻa e mālohí | 0.5 / 1 / 2 / 5 / 10 Watts |
tuʻo lahi hono fakahu | Ha Faʻahinga Tuʻo Lahi Pē ʻe Lava ʻo Liliu, Sitepu 1MHz |
ko ha mālohi flatness | within10MHz bandless ʻo laka hake ʻi he 0.2 2 |
fika ʻo e uma | ko e malohi ʻo e Output ʻo 27dB, ʻoku lelei ange ʻa e fika ʻo e uma ʻi he-30dB |
ko e fakafaʻahi hono uá | ≤-45ub |
MEA | 32Db |
fakahū ai e vitioó | 720×480 60'Oku(NTSC), 720×576 50'Oku(PAL), 720 50P, 720 60P, 1080 50'Oku, 1080 60'Oku, 1080 24P, 1080 25P, 1080 30P, 1080 50P, ngaahi founga kehekehe ʻoku adaptive. |
ʻA fengāueʻaki ʻa e HD | HDMI, SDI fili pe |
fōmeti ʻo e fakahū ʻo e vitioó | H.264 |
tuʻunga maluʻi | ʻalaminiume kotoa pe ngaahi chassis, kau ʻAnitai-corrosion, sipinga ʻo e fakamoʻoniʻi ʻo e ʻohovale |
Lahi fakakatoa | 9 x 6.4 x 2.3 senitimita 'e |
Mamafa fakakatoa | ≤0.20 KILO |
Fakapapauʻi ʻo e Receiver
Ngaahi fakangatangata ki hono tautauʻanga ʻo e misini bandwidth HD receiver | |
Maʻu ʻa e tuʻo lahi hono faí | 170-860MHz VHF&UHF |
tuʻo lahi hono ʻū meʻa ʻoku ʻ | 2/3/4/5/6/7/8MHz, fili pe |
Levolo ʻo e input RF | -94dBm~-15dBm (8M bandwidth)/-98dBm ~-15dBm (2M bandwidth) |
RF input impedance | 50 ohms |
RF input connector | N-ʻulu |
founga fakaʻaliʻali | COFDM |
founga pupunga fetuʻú | QPSK, 16QAM, 64QAM (fili pe) |
fakatonutonu ki muʻa e fehālākí | 1/2, 2/3, 3/4, 5 /6,7/8 (fili pe) |
fika ʻo e tokotaha uta koloá | 2kilomita, |
vahaʻa taimi maluʻi | 1/32, 1/16, 1/8, 1/4 (fili pe) |
vitio decoding | MPEG-2MP@ML/H.264 |
fika (ratio) ʻo e tafaʻaki | 4: 3 16: 9 |
ʻimisi ʻo e vitioo ko e | 720 * 576 @ 8MHz 1080P @ 60P |
audio output mode | tepi ʻoku ʻikai palanisi 300 / 200mv |
audio Output | output2Audio + 2Vitio output |
founga ngāué | AC220V / DC12V <0.5HA |
Hono fakalele 'a e mafana 'o e 'ea | – 20°C~ + 50°C |
Lahi ʻo e fōtungá | 480*260*45 (1U) chassis |
mamafa ʻo e meʻangāué | 1.5kilo 'e (lea fakafonua ʻe ua 2.5 kilo ʻe) |
Fakatokanga'i ange: Ko e default connector ko e HDMI, Kapau ʻoku ke fie maʻu ʻa e sipinga maʻamaʻa ange, ko ha connector ki he CVBS vitio engeenga connector 720p HDMI, Kataki 'o Fakaʻilongaʻi heni ki ha sīpinga ʻe taha.
Fakamatala:
– Ko e meʻangaue ko ʻeni adopts COFDM tekinolosia, ʻa ia ʻoku ne fakatahaʻi ʻa e ʻenitena, Naunau fakaʻilekitulonika modulation, ongó, mo e ngāue ki he vitioó.
– Lahi ʻo e size, kiʻi vela siʻisiʻ, mo e feʻaveʻaki taimi loloa
– fenapasi mo ha kiʻi meʻa faita siʻisiʻi, ʻe lava ke maʻu mo fakahu ʻa e ʻimisi ʻo e HD
– ʻe loloa ange ʻa e feʻaveʻaki (transmission) kapau ʻe adopts maʻolunga ʻa e ʻenitena
– Feʻaveʻaki: 5000m (taʻe fakahohaʻasi)/500M mo e ngaahi faingataʻa ʻoku fakahohaʻasi
Ngaahi fotunga:
– Lahi ʻo e size, fokotuʻutuʻu modulation
– Adopts COFDM modulation tekinolosia, MPEG-2 ʻimisi lahi tekinolosia
– Omnidirectional fetuʻutaki
– ʻOku malava ʻe he fetuʻutaki ʻoku vave ʻene lele ʻo ʻai ke lava ʻo feʻaveʻaki taimi totonu ʻa e ongo mo e vitioo
– Ko ha meʻa ʻalaminiume ʻoku shockproof
– NLOS feʻaveʻaki
Ngaahi fakamatala pau:
Transmitter:
– Lahi 'o e:90x64x23mm
– mamafa:200l
– 'enitena:22MM
Receiver
– lahi 'o e: 87x70x20mm
– mamafa:200l
– Maʻolunga ʻa e ʻenitena:42.5senitimita 'e (lava pē ke punou)
Fakapapauʻi fakatekinikale
– Modulation: COFDM
– ngaue voltage: DC11V-DC13V
– Lolotonga ngaue:0.5W: siʻi hifo he 0.6 A @ DC12V
– pooti pule: standrad RS232 Pooti. 8-kongokonga ʻo e fakamatala, 1-kiʻi taʻofi, Baud fakafuofua'i:19200, tokoni parity sieke ngali kehe
– pooti fakamatala ki hono feʻaveʻaki:8 kongokonga ʻo e fakamatala,1 kiʻi taʻofi, Baud fakafuofua'i,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Encryption: poupou 128 encryption
– Modulation mape: QPSK (4QAM),16QAM,64QQAM
– Fakatonutonu ha fehalaaki kimuʻa: 1/2,2/3,3/4,5/6,7/8
– Maluʻi ʻa e vahaʻa taimi: 1/32,1/16,1/8,1/4
– Fika uta koloá:2KILOMITA
– Tuʻo lahi bandwidth:2/3/4/5/6/7/8M adjustable
– ʻave ʻa e vaitafe:2000kbs-20000kbs adjustable
– malohi ke feʻaveʻaki: 2W
– tuʻo lahi hono fakahu: ʻe lava ke fakapatonu, sitepu ko e 1Mhz
– lafalafa ʻa e malohi: siʻi hifo he 0.2 db within10Mhz
– Fakafaʻahi hono uá: siʻi hifo he 45db
– MEA:32db
– fakahū ai e vitioó:1VP-p,75ohm
– Fometi ʻo e polokalama vitioo: MPEG-2
– Tuʻunga lelei ʻo e vitio: 720×576 ʻi ʻolunga 4M
– Fōmeti: ʻE lava ke fokotuʻu ʻa e NTSC mo e TAKANGA
Fakapapauʻi fakatekinikale ʻa e receiver:
– Tuʻo lahi hono receiver: 170-860Mhz, VHF mo e UHF
– Tuʻo lahi bandwidth: 2/3/4/5/6/7/8 Mhz, adjustable
– Levolo ʻo e input RF:-94dbm-0Uebm ʻi he 8M/-98dbm-0Uebm ʻi 2M mahalo
– RF input impedance: 50ohm
– ʻOku fakahu ʻe he RF ʻa e Pooti: SMA
– modulation: COFDM
– Ko e founga pupunga fetuʻu: QPSK,16QAM,64QAM fili pe
– Fakatonutonu ha fehalaaki kimuʻa: 1/2,2/3,3/4,5/6,7/8 fili pe
– Fika uta koloá:2KILOMITA
– Luo maluʻi:1/32,1/16,1/8,1/4
– Lahi ʻo e screen:4:3,16:9
– ʻīmisi vitioó:720×576 @6Mhz
– Pooti ki he ongo mo e vitioo: tu'unga mo'ui 3.5 Pooti
– Ngaue voltage: DC12V 0.3 A
Naʻe fakakau ʻi he peketi:
– 1 x transmitter
– 1 x receiver
– 1 fokotuʻu ha naunau x
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
Fehu'i 1: ʻOku ou fie maʻu ha kilomita ʻe 30mei he ʻea ki he kelekele ki he UAV UGV USV.
Tali 1:ʻOku poupouʻi ia ʻe heʻetau polokalama, ʻoku totonu ke ne fakaʻaongaʻi ha mālohi lahi ange ʻi he 2W, ʻoku lelei ange ke fakaʻaongaʻi ʻa e transmitter loloa ʻenitena mo e ongo ʻenitena maʻolunga ange.
COFDM-912T VS COFDM-908T
Fehu'i 2: Ko e ha hono mamaʻo te u lava ʻo maʻu kapau te u fakaʻaongaʻi ʻa e transmitter mo e receiver fakatouʻosi ʻi he kelekele?
Tali: Fakaʻaongaʻi ʻi he kelekelé, kuo pau ke ʻi ai ha faikehekehe maʻolunga pau ʻo e transmitter mo e receiver ke ne ʻave ʻa e mamaʻo.
Ko e mamaʻo tahá pē 2.5 kilomita kapau ʻoku fakatou maʻolunga tatau pe ʻa e transmitter mo e receiver ʻi he kelekele. Kātaki ʻo sio ki heʻemau vitiō siviʻí; koeʻuhí he ʻoku fokotuʻu ʻa e transmitter mo e receiver ʻi ha ngaahi tuʻunga kehekehe, ko e tafaʻaki ʻe taha ʻoku ʻi he moʻungá, ko e tafaʻaki ʻe taha ʻoku ʻi he matatahi, naʻa mau fakaʻaongaʻi ʻa e ongo Watts kuo ʻosi seti ke ʻave 27 kilomita ʻe.
Fehu'i 3: ʻOkú ne poupouʻi nai ha ʻātakai ngāue ʻo e -20 tikili 'e?
Tali: 'Io, Poupou'i
Fehu'i 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
Tali: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
Fehu'i 5:Do you have any special case shells for marine use?
Tali: 'Io, Kātaki ʻo vakaiʻi ʻa e fakatātā ʻi lal. (For the transmitter with a three-proof shell, ʻikai ke ʻi ai ha vai, shockproof, anti-salt spray, 防水,防震,防盐雾)
Ngaahi fakatokanga ki he ʻota customization
- Tu'o lahi: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- Loloa 'o e 'enitena: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 pe 1.8 meters optional)
- Antenna type:
According to your application scenario, the wireless video transmitter be placed on the drone or on the ground, or on the vehicle? Select different transmit antennas for transmitter and receiver antennas.
The transmitter of the UAV uses a short omnidirectional antenna as much as possible. The transmitter antenna installed on the ground or on the vehicle should be as long as possible, and it can be installed higher to avoid other obstacles on the ground. The receiver is generally used on the ground, try to choose a longer receiver antenna. If it is fixed in one place, a directional antenna can also be used. For more antenna types, please refer to https://ivcan.com/price-list-for-wireless-video-transmitter-and-receiver-antenna/.
FAQS
Q. What is the video resolution?
HA: HDMI 1080P.
Q. Does the transmitter power current is high?
HA: Maʻa e Transmitter, the different PA (fakatupulaki e mālohí) ʻi loto, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Maʻa e Receiver, the current is only 0.3HA (300Fine'eiki)
Q: Like we only need 10km, how much PA is recommended?
HA: Considering that your transmitter and receiver are used on the ground, unlike drones, the heights of the transmitter and receiver are very different. It is recommended to use a 10W PA transmitter for 10 kilomita ʻe. You also need to consider that your receiver is installed on the car, and it keeps moving at high speed at any time. Only a high-power transmitter can ensure the signal stability at the receiver.
Q: What frequency is better? 2.4G or 5.8G?
HA: The frequency range of Cofdm is 170~860Mhz.
We also have products that use 2.4G or 5.8G, but the range of these two intervals is the same as the frequency of WiFi, which will cause the transmission to be greatly interfered by WiFi, and the transmission distance will be greatly shortened.
If there are digital TV DVB-T signals locally, try to avoid frequencies in these ranges when selecting frequencies.
Q: Can customers adjust the frequency by themselves? If sometimes the frequency is occupied.
HA: The default center frequency is 595Mhz, generally there is +/-15Mhz bandwidth, which is 30Mhz, and the frequency range can be adjusted. (580-610Mhz).
Beyond this range, it is necessary to change the antenna and PA customized according to this center frequency.
Q:How does the customer adjust the frequency of the transmitter or receiver? Is there any software to change the frequency?
HA:It's very easy, the transmitter can use the assistant board next to the picture, and the receiver's assistant board is on the fuselage, with a screen and buttons.
But it is not recommended for customers to adjust, because sometimes he changed the parameters of the transmitter but did not change the parameters of the receiver, saying that he could not receive the signal.
Q: Can I adjust the power amplifier on the transmitter?
HA: The user can reduce the actual output power by increasing the impedance of the high power, but cannot increase the transmitter of the low power PA.
Hange ko 'eni, 10W PA can change to 5W PA, but can not change 5W PA to 10W.
- No one can tell you the exact transmission distance. Because the transmission distance depends on the height of your transceiver antenna and the type and thickness of obstacles, whether the transmitted signal can be diffracted, whether there is interference in the current frequency, mo e ha fua.
- There are trees or a mountain in the middle, and the transmission distance is different.
- It is difficult to tell you an accurate transmission distance, even the walls have thickness, generally 500-1000 mita 'e.
- Please watch our test video, if you think it is suitable, you can buy a sample for testing, if you are not satisfied, you can return it to us.
- Here is a form for COFDM PA and LOS and NLOS transmission distance for your references.
PA | LOSI | NLOS |
500mW | >10Km | <300m |
1W | >30Km | <500m |
5W | >60Km | <1500m |
20W | >120km | <3000m |
50W | >200Km | <5000m |
100W | >250Km | <10Km |
Now COFDM-908T supports H.264, not H265.
Max support 1080 50P. We have actually tested that at 1080P60, the frame will be stuck, or the recognition will be incomplete
- Power consumption is equal to current times voltage. Hange ko 'eni, for a 10W transmitter, the current is 5.5A, and the voltage is 12V, so its power consumption is 66W.
- If you prepare a 1000W rechargeable battery and use a 10W PA transmitter, it is estimated that you can use 1000W divided by 66W, which is equal to 15 houa 'e.
-
Whether the link between the transmitter and receiver is good or the signal strength can be seen on the small screen at the COFDM receiver.
-
Not on the transmitter. Because COFDM is a one-way transmission, only the receiver can receive the signal strength of the transmission and show them on the screen. If the transmitter needs to see these signals, it is necessary to add a set of data transmission devices to transfer the status signal from the receiver to the transmitter and display them by the signal light.
-
The transmitter and receiver of two-way transmission can have this function, and it is recommended to choose a bidirectional transmission device.
- First of all the frequency is correct.
- In order to achieve the best performance of the transmitter, power amplifier and antenna, they are generally customized according to a central operating frequency point, and they can all work within a working frequency range, generally ±15Mhz. That is to say, when the central operating frequency is 290Mhz, the working range of the transmitter is 275Mhz~305Mhz. So it meets the frequency range of 280~300Mhz required by customers.
- 'Io, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- 'Io, we can build the transmission of telemetry and video in COFDM-908T.
- ʻUluaki, the 10-watt RF linear amplifier and the 20-watt RF linear amplifier use the same cavity, which is machined by a CNC mill.
- CNC milling machines are not only expensive but also take a long time to process. The 20W and 10W cavities are universal, so they can be used with each other. For faster delivery, this character was not changed and used directly.
- This product actually has 20 Watts. We used special instruments to test it before shipment. Please see the video below. (The instrument shows 3.04dBm plus the black attenuator 40dBm equals 43.04dBm)
- Test video at youtube: https://www.youtube.com/shorts/jfNoZeb1BIA
- Here are some correspondences between the output power and the dBm parameters displayed by the instrument.
- 20mW ko 13dBm
200mW ko 23dBm
1 Watts ko 30dBm
2 Watts ko 33dBm
5 Watts ko 37dBm
10 Watts ko 40dBm
20 Watts ko 43dBm
50 Watts ko 47dBm
100 Watts ko 50dBm
Normal Four HDMI Video input and One HDMI output box
If it is just a simple splicing of four camera videos into one video, you can add a box with four HDMI inputs and one HDMI output in front of the transmitter. This means that the monitor on the receiver will always display each video on a quarter of the screen.
'Io, our dual antenna RF input receiver supports diversity. You can use two yagi directional antenna on our cofdm wireless video receiver.
For better signal reception, it is recommended to have one Yagi directional antenna and one omnidirectional antenna installed on the receiver.
It can be used by photographers. Currently supports 1080@60P, 1080@50P, 1080@30P
Lolotonga Ngāue ʻAki, it does not support 1080i, nor does it support 4K transmission.
Kei ʻi ai pē haʻo fehuʻi?
Kātaki ʻo fetuʻutaki mai kiate kimautolu ke maʻu ha fakamatala lahi ange.
ʻAve Hoʻo Fehuʻí
20kilomita ʻe taha ʻi tahi HDMI wireless video transmitter mo e receiver test ki he vaka pe mei ʻuta ki he vaka
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
Toe vakai'i
'I ai ka 'oku 'ikai ha toe vakai'i.