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 lavitra COFDM HDMI Transmitter Wireless Video Transmission System Receiver feno Set Audio Video TX RX ho an'ny UAV Drone UGV 1080P
endri-javatra
- tena tafiditra, famolavolana modular mitambatra
- Mampiasa teknolojia fanodinana COFDM, H.264 image coding technology
- Afaka mampita fantsona iray amin'ny 1080P HDMI izy io (tsy voatery SDI) famantarana
- Fanemorana ambany, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milliseconds.
- Rehetra-manodidina fifandraisana, tsy matahotra ny fananganana rindrina
- Serasera haingam-pandeha eo amin'ny dia, the maximum moving speed can reach 600 km / ora.
- Transmitter heat sink karazana alimina aluminium, tsy taitra, Waterproof case is optional.
- Tohano ny LOS sy Non-line-of-sight (NLOS) fandefasana finday
- Ny elanelana dia tsy latsaky ny 30 kilometatra ambanin'ny toetoetran'ny fahitana ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Fandraisana ny feo sy feo, famaritana avo lenta HDMI1080P endrika tsy voatery, kalitaon'ny sary DVD famoahana famaritana mahazatra
- Ny mpandray dia afaka mahatsapa ny fandraketana horonantsary sy ny asan'ny backup
- 128-ny encryption bit AES sy ny fanafoanana
- Misy ny fanaingoana feno
- Upgrade tool: Parameter Configure board
- Use: UAV, fiara & UGV
- Fanovaovam-peo: COFDM
- miasa malefaka: DC11V-DC13V
- miasa amin'izao fotoana izao: 0.5~ 2W (miankina amin'ny PA samihafa)
- Hery fampitana: 0.5W~20W optional
Fizahan-takelaka
Application
Ity vokatra ity dia ampiasaina indrindra amin'ny fanaraha-maso ara-teknika sy fanangonana porofo momba ny sampana fanaraha-maso ny fiarovana sy fiarovana ny daholobe, fandefasana sary amin'ny fotoana tena izy ireo fiara an'habakabaka tsy mitantana, sambo tsy mitantana, fampitàna radio sy fahitalavitra, radio sy fahitalavitra mivantana: sehatra fampitana, fandaharana fanatanjahan-tena, ara-tsosialy vaovao, rivotra mivantana, Studio, Expedition an-tendrombohitra, ary lafiny hafa. Mety amin'ny fandefasana finday mandehandeha ny sary avo lenta amin'ny tontolo sarotra isan-karazany toy ny faritra an-tanàn-dehibe, ranomasina, sy tendrombohitra.
Famaritana mpandefa
fomba fanovana | COFDM |
miasa malefaka | DC11V ~ DC13V |
miasa ankehitriny | 0.5 Watts: ≤0.6A DC12V, 1 Watts: ≤0.8A DC12V, 2 Watts: ≤1.5A DC12V 5 Watts: ≤3.0A DC12V 10 Watts: ≤5.0A DC12V 20 Watts: ≤7.0A DC12V |
interface interface | interface interface RS232, 8 Data Bits, 1 Sambony Bit, Parity Bit, Baud Rate: 19200 |
interface data mangarahara, | fandefasana seranana mangarahara tokana, 8 Data Bits, 1 Ajanony ny Bit, manohana Odd Parity, Parity Bit, Parity Wireless, Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
fomba enkripsi | tohano ny encryption 128-bit |
sarintany modulasi | QPSK (4qam), 16qam, 64qam |
nandroso fahadisoana fanitsiana | 1/2 2/3 3/4 5/6 7/ 8 |
mpiambina elanelam-potoana io | 1/32 1/16 1/8 1/4 |
Isa mpitatitra | 2K |
Frequency passante | 2 / 3 / 4 / 5 / 6 / 7 / 8M azo ovaina |
stream code de transmitter | 2000kbs ~ 20000kbs azo ovaina |
mamindra ny fahefana | 0.5 / 1 / 2 / 5 / 10 Watts |
fahita matetika | Any Frequency Customizable, Dingana 1MHz |
ny fahefana flatness | anatiny10MHz tsy misy tarika noho 0.2dB |
tahan'ny soroka | ny herin'ny output dia 27dB, ny tahan'ny soroka dia tsara kokoa noho ny -30dB |
ny harmonika faharoa | ≤-45dB |
MORE | 32Db |
horonan-tsary fampidirana | 720×480 60I(NTSC), 720×576 50I(Pal), 720 50P, 720 60P, 1080 50I, 1080 60I, 1080 24P, 1080 25P, 1080 30P, 1080 50P, ny modely isan-karazany dia mifanaraka. |
HD Interface | HDMI, SDI tsy voatery |
endrika fandefasana horonantsary | H.264 |
fenitra fiarovana | chassis karazana radiatera-aluminium rehetra, anti-harafesiny, endrika tsy ampoizina |
amin'ny ankapobeny habeny | 9 X 6.4 X 2.3 cm |
Ny lanja ankapobeny | ≤0.20KG |
Famaritana mpandray
Masontsivana mpandray fantsom-pifandraisana HD fantsom-pifandraisana misy masinina | |
Raiso ny elanelam-potoana | 170-860MHz VHF&UHF |
fantsom-pifandraisana matetika | 2/3/4/5/6/7/8Mhz, tsy voatery |
Haavo fahan'ny RF | -94dBm ~ -15dBm (8M passante)/-98dBm ~ -15dBm (2M passante) |
RF fahan'ny impedance | 50 ohms |
RF fahan'ny connector | N-loha |
fomba demodulation | COFDM |
maody antokon-kintana | QPSK, 16qam, 64qam (tsy voatery) |
nandroso fahadisoana fanitsiana | 1/2, 2/3, 3/4, 5 /6,7/8 (tsy voatery) |
isa mpitatitra | 2K, |
mpiambina elanelam-potoana io | 1/32, 1/16, 1/8, 1/4 (tsy voatery) |
decoding video | MPEG-2MP@ML/H.264 |
tahan'ny lafiny | 4: 3 16: 9 |
sary video dia | 720 * 576 @ 8MHz 1080P @ 60P |
fomba famoahana feo | stereo tsy mahay mandanjalanja 300 / 200mv |
output audio | output2Audio + 2Video output |
miasa malefaka | AC220V / DC12V <0.5A |
Operating mari-pana | – 20℃ ~ + 50 |
Haben'ny bika | 480*260*45 (1U) chassis |
lanjan'ny fitaovana | 1.5kg (fiteny roa-2.5Kg) |
Fanamarihana: ny mpampitohy default dia HDMI, raha mila maodely mora vidy ianao, mpampitohy an'ny mpampitohy video CVBS Yellow 720p HDMI, Mba miangavy re Zahao eto ho an'ny modely hafa.
Description:
– Ity fitaovana ity dia mandray ny teknolojia COFDM, izay mampiditra antena fampitana, fanovana nomerika, teny, ary ny asan'ny video.
– Haben'ny paikady, hafanana kely, ary elanelam-pandefasana lava
– mifanaraka amin'ny fakan-tsary kely, afaka mamela ny fakana sary sy ny fandefasana sary HD
– ny elanelana fifindran'ny dia ho lava kokoa raha mampiasa antenne tombony ambony
– Faritra fandefasana: 5000M (tsy misy fanelingelenana)/500M misy sakantsakana manelingelina
Toetoetra:
– Haben'ny paikady, famolavolana modulation
– Manangana teknolojia fanodinana COFDM, Teknolojia famoretana sary MPEG-2
– Fifandraisana Omnidirectional
– ny serasera haingam-pandeha dia ahafahan'ny fampitana feo sy horonan-tsary amin'ny fotoana tena izy
– Varavarankely aluminium izay tsy mahataitra
– Fandefasana NLOS
fepetra arahana:
Transmitter:
– Size:90x64x23mm
– lanja:200h
– Antenna:22MM
mpandray
– habe: 87x70x20mm
– lanja:200h
– Haavon'ny Antenna:42.5cm (mety hiondrika)
Famaritana ara-teknika
– Fanovaovam-peo: COFDM
– miasa malefaka: DC11V-DC13V
– miasa amin'izao fotoana izao:0.5W: latsaky ny 0.6A @ DC12V
– seranan-tsambo fanaraha-maso: seranana RS232 standrad. 8-bit data, 1-mitsahatra kely, Baud taha:19200, tohano ny fizahana parity hafahafa
– seranan-tsambo fandefasana:8 bit data,1 mitsahatra kely, Baud taha,1200,2400,4800,9600,19200,38400,57600,115200,230400
– fanafenana: fanohanana 128 fanafenana
– Fanovaovam-peo sarintany: QPSK (4qam),16qam,64QQAM
– Mahereza fahadisoana fanitsiana: 1/2,2/3,3/4,5/6,7/8
– Arovy ny elanelam-potoana: 1/32,1/16,1/8,1/4
– Isa mpitatitra:2K
– Frequency passante:2/3/4/5/6/7/8M azo ovaina
– renirano fitaterana:2000kbs-20000kbs azo ovaina
– hery fampitana: 2W
– fahita matetika: azo namboarina, dingana dia 1Mhz
– fahatapahan-jiro: latsaky ny 0.2db ao anatin'ny10Mhz
– faharoa harmonic: latsaky ny -45db
– MORE:32db
– horonan-tsary fampidirana:1Vp-p,75ohm
– Fandaharana fandaharana horonan-tsary: -Tsary MPEG-2
– Kalitaon'ny horonantsary: 720×576 rehefa ambonin'ny 4M
– Format: NTSC sy PAL dia azo apetraka
Famaritana ara-teknika mpandray:
– Faritra matetika mpandray: 170-860Mhz, VHF sy UHF
– Frequency passante: 2/3/4/5/6/7/8 Mhz, Adjustable
– Haavo fahan'ny RF:-94dbm-0dbm amin'ny 8M / -98dbm-0dbm amin'ny 2M
– RF fahan'ny impedance: 50ohm
– Seranan-tsofina RF: High School
– Fanovaovam-peo: COFDM
– Ny fomba antokon-kintana: QPSK,16qam,64QAM tsy voatery
– Mahereza fahadisoana fanitsiana: 1/2,2/3,3/4,5/6,7/8 tsy voatery
– Isa mpitatitra:2K
– Banga fiarovana:1/32,1/16,1/8,1/4
– Tombana amin'ny efijery:4:3,16:9
– sary horonan-tsary:720×576 @ 6Mhz
– Port audio sy horonan-tsary: Malagasy 3.5 seranan-tsambo
– miasa malefaka: DC12V 0.3A
Ny tamba-tolotra dia misy:
– 1 mpandefa x
– 1 x mpandray
– 1 mametraka x kojakoja
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
fanontaniana 1: Mila elanelana 30km fara-fahakeliny avy amin'ny rivotra mankany amin'ny tany aho ho an'ny UAV UGV USV.
valiny 1:Manohana azy ny rafitray, tokony hampiasa fanamafisam-pahefana 2W izy io, tsara kokoa ny mampiasa antenne mpitatitra lava manokana sy antena mpandray roa ambony kokoa.
COFDM-912T VS COFDM-908T
fanontaniana 2: Hatraiza no azoko atao raha mampiasa ny émetteur sy ny resevera aho amin'ny tany?
valiny: Amin'ny fampiasana tany, ny mpandefa sy ny mpandray dia tsy maintsy manana fahasamihafan'ny haavony mba handefasana lavitra.
Ny halavirana lavitra indrindra ihany 2.5 kilometatra raha toa ka mitovy haavo amin'ny tany ny mpandefa sy ny mpandray. Mba jereo ny vidéo fitsapana anay; satria apetraka amin'ny ambaratonga samihafa ny émetteur sy ny mpandray, ny ilany iray dia eo an-tendrombohitra, ny lafiny iray kosa dia eo amoron-dranomasina, nampiasa ny roa watts default izahay handefasana 27 kilaometatra.
fanontaniana 3: Manohana tontolo iainana miasa amin'ny -20 fiakarana?
valiny: Eny, nanohana
fanontaniana 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
valiny: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
fanontaniana 5:Do you have any special case shells for marine use?
valiny: Eny, Azafady, jereo ny sary etsy ambany. (For the transmitter with a three-proof shell, tsy tantera-drano, tsy taitra, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- Frequency: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- Antenna halavan'ny: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 na 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?
A: HDMI 1080p.
Q. Does the transmitter power current is high?
A: HO AN'NY Transmitter, the different PA (Fanafoanana ny tahiry) anatiny, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
HO AN'NY mpandray, the current is only 0.3A (300Ma)
Q: Like we only need 10km, how much PA is recommended?
A: 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 kilaometatra. 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?
A: 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.
A: 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?
A: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?
A: 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.
Ohatra, 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, sns.
- 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 metatra.
- 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 | NY | 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. Ohatra, 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 ora.
-
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.
- Eny, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Eny, we can build the transmission of telemetry and video in COFDM-908T.
- VOALOHANY, 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 is 13dBm
200mW is 23dBm
1 Watts is 30dBm
2 Watts is 33dBm
5 Watts is 37dBm
10 Watts is 40dBm
20 Watts is 43dBm
50 Watts is 47dBm
100 Watts is 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.
Eny, 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, 1080dingana 1KHz, 1080dingana 1KHz
Amin'izao fotoana izao, it does not support 1080i, nor does it support 4K transmission.
Mbola manana fanontaniana?
Mifandraisa aminay raha mila fanazavana fanampiny.
Alefaso ny fanontanianao
20km ambonin'ny ranomasina HDMI fampitana horonan-tsary tsy misy tariby sy fitsapana mpandray ho an'ny sambo na avy amin'ny morontsiraka mankany amin'ny sambo
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
hevitra
Tsy misy hevitra mbola.