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 kureba-kure COFDM HDMI Transmitter Wireless Video Transmission system Receiver yakazara Set Audio Vhidhiyo TX RX yeUAV Drone UGV 1080P
mamiriro
- zvikuru revatema, modular yakasanganiswa dhizaini
- Uchishandisa COFDM modulation tekinoroji, H.264 image coding technology
- Inogona kufambisa imwe chiteshi che1080P HDMI (sarudzo SDI) chiratidzo
- Kunonoka kuderera, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milliseconds.
- All-kumativi kutaurirana, musatya kuvaka masvingo
- Kukurukurirana kwepamusoro-kukurumidza pakati pekufamba, the maximum moving speed can reach 600 km / awa.
- Rinofambisa kupisa singi mhando aluminium kesi, shockproof, Waterproof case is optional.
- Tsigira LOS uye Non-line-of-sight (NLOS) nharembozha
- Kureba hakusi kushoma pane 30 makiromita pasi pemamiriro emutsetse-we-kuona ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Synchronous kugashira odhiyo nemavhidhiyo masaini, yakakwira-tsananguro HDMI1080P yakawanda-fomati sarudzo, standard-tsananguro kuburitsa DVD yemhando yemhando
- Iye anogamuchira anogona kuona kurekodha vhidhiyo uye backup mabasa
- 128-zvishoma AES encryption uye decryption
- Yakazara kugadzirisa kunowanikwa
- Upgrade tool: Parameter Gadzirisa bhodhi
- shandisa: UAV, Mota & UGV
- Kusiyanisa: COFDM
- Working voltage: DC11V-DC13V
- kushanda iyezvino: 0.5~ 2W (zvichienderana nePA yakasiyana)
- Simba rekufambisa: 0.5W~20W optional
Zviri Mukati
kunyoresa
Ichi chigadzirwa chinonyanya kushandiswa muhunyanzvi hwekuongorora uye humbowo kuunganidzwa kweruzhinji chengetedzo uye kuchengetedzwa kwekuongorora madhipatimendi, chaiyo-nguva chifananidzo chekutepfenyura kwemotokari dzisina kufambiswa dzedenga, ngarava dzisina munhu, redhiyo neterevhizheni relay, redhiyo neterevhizheni zvinotepfenyura: nhandare, mitambo nhepfenyuro, mumagariro nhau, mweya urarame, Studio, kukwira makomo Expedition, uye zvimwe zvinhu. Iyo inokodzera chaiyo-nguva nhare yekufambisa yemhando yepamusoro mifananidzo munzvimbo dzakasiyana siyana dzakaomarara senzvimbo dzemadhorobha, makungwa, nemakomo.
Rinofambisa Specification
modulation nzira | COFDM |
kushanda voltage | DC11V ~ DC13V |
kushanda ikozvino | 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 |
control interface | yakajairwa RS232 interface, 8 Dhata Bits, 1 Spamusoro Bit, Parity Bit, Baud Rate: 19200 |
yakajeka data interface, | imwe-nzira iripachena serial chiteshi kutapurirana, 8 Dhata Bits, 1 Mira Zvishoma, tsigira Odd Parity, Parity Bit, Wireless Parity, Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
encryption nzira | tsigira 128-bit encryption |
modulation mapping | QPSK (4QAM), 16QAM, 64QAM |
mberi kukanganisa kururamiswa | 1/2 2/3 3/4 5/6 7/ 8 |
Guard penguva | 1/32 1/16 1/8 1/4 |
Inotakura nhamba | 2K |
Frequency bandwidth | 2 / 3 / 4 / 5 / 6 / 7 / 8M Inogadziriswa |
kufambisa kodhi kodhi | 2000kbs ~ 20000kbs Adjustable |
fambisa simba | 0.5 / 1 / 2 / 5 / 10 Watts |
hutachiwana frequency | Any Frequency Customizable, Nhanho 1MHz |
simba flatness | mukati me10MHz isina mabhendi kupfuura 0.2dB |
reshiyo yefudzi | simba rekubuda re27dB, chiyero chepafudzi chiri nani pane -30dB |
yechipiri harmonic | ≤-45dB |
MORE | 32Db |
yekuisa vhidhiyo | 720×480 60ini(NTSC), 720×576 50ini(DEVI), 720 50P, 720 60P, 1080 50ini, 1080 60ini, 1080 24P, 1080 25P, 1080 30P, 1080 50P, nzira dzakasiyana dzinoenderana. |
HD Interface | HDMI, SDI sarudzo |
vhidhiyo encoding fomati | H.264 |
dziviriro mureza | yese-aluminium radiator-mhando chassis, Anti-ngura, kushamisika-chiratidzo dhizaini |
kunopindirana kukura | 9 X 6.4 X 2.3 masendimita |
Uremu hwese | ≤0.20KG |
Mugamuchiri Specification
Machine Rack-yakaiswa akawanda-bandwidth HD inogamuchira parameter | |
Gamuchira frequency renji | 170-860MHz VHF&UHF |
frequency bandwidth | 2/3/4/5/6/7/8MHz, Opsioneel |
RF chiyero chekuisa | -94dBm ~ -15dBm (8M bandwidth)/-98dBm ~ -15dBm (2M bandwidth) |
RF chiyamuro impedance | 50 ohms |
RF chiyamuro connector | N-musoro |
demodulation modhi | COFDM |
renyeredzi muoti | QPSK, 16QAM, 64QAM (Opsioneel) |
mberi kukanganisa kururamiswa | 1/2, 2/3, 3/4, 5 /6,7/8 (Opsioneel) |
inotakura nhamba | 2K, |
murindi penguva | 1/32, 1/16, 1/8, 1/4 (Opsioneel) |
Video decoding | MPEG-2MP@ML/H.264 |
chimiro chakaringana | 4: 3 16: 9 |
vhidhiyo mufananidzo iri | 720 * 576 @ 8MHz 1080P @ 60P |
odhiyo kuburitsa modhi | stereo isina kuenzana 300 / 200mv |
Audio goho | gogo2Audio + 2Video goho |
uchishandisa voltage | AC220V / DC12V <0.5A |
uchishandisa tembiricha | – 20~ ~ + 50 ℃ |
Chitarisiko saizi | 480*260*45 (1U) chisiki |
midziyo uremu | 1.5makirogiramu (maviri-nzira mutauro 2.5Kg) |
chitsamba: chinongedzo chakasarudzika HDMI, kana iwe uchida iyo isingadhuri modhi, chinongedzo cheCVBS Yero vhidhiyo yekubatanidza 720p HDMI, ndapota Tarisa pano kune imwe modhi.
tsananguro:
– Ichi chishandiso chinotora COFDM tekinoroji, iyo inobatanidza hutachiona antenna, modulation yedhijitari, Audio, uye vhidhiyo basa.
– Kukura kwakakwana, kupisa kudiki, uye kureba kufambisa renji
– inoenderana nekamera kadiki, yaigona kugonesa HD mufananidzo kutora uye kutapurirana
– huwandu hwekutumira huchave hwakareba kana ikatora yakakwira kuwana antenna
– Hutachiwana dungwerungwe: 5000M (pasina chero kukanganisa)/500M nezvipingamupinyi zvinokanganisa
Features:
– Kukura kwakakwana, modulation dhizaini
– Inotora COFDM modulation tekinoroji, MPEG-2 mufananidzo com compression tekinoroji
– Omnidirectional kutaurirana
– yekumhanya-mhanya kutaurirana inogonesa chaiyo-nguva odhiyo uye vhidhiyo kutumira
– Aluminium kesi iyo inovhundutsa
– Kutapurirana kweNLOS
Magadzirirwo:
Rinofambisa:
– zera:90x64x23mm
– uremu:200d
– kanyanga:22mamirimita
mugamuchiri
– zera: 87x70x20mm
– uremu:200d
– Kukwirira kanyanga:42.5masendimita (inogona kukotama)
Technical kutaurwa
– Kusiyanisa: COFDM
– kushanda voltage: DC11V-DC13V
– kushanda iyezvino:0.5W: isingasviki 0.6A @ DC12V
– control port: standrad RS232 chiteshi. 8-bit data mabheti, 1-kumbomira zvishoma, Baud zvazvingava:19200, tsigira odd parity cheki
– kutumira dhata dhata:8 bit data mabheti,1 kumbomira zvishoma, Baud zvazvingava,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Encryption: rutsigiro 128 encryption
– Kusiyanisa inzwi Mapping: QPSK (4QAM),16QAM,64QQAM
– Forward kukanganisa kururamiswa: 1/2,2/3,3/4,5/6,7/8
– Chengetedza iyo nguva: 1/32,1/16,1/8,1/4
– Inotakura nhamba:2K
– Frequency bandwidth:2/3/4/5/6/7/8M inogadziriswa
– kutakura rwizi:2000kbs-20000kbs inogadziriswa
– hutachiwana simba: 2W
– hutachiwana frequency: zvinogona customized, nhanho ndeye 1Mhz
– simba flatness: isingasviki 0.2db mukati me10Mhz
– harmonic Second: pasi pe -45db
– MORE:32db
– yekuisa vhidhiyo:1VP-p,75Ohm
– Vhidhiyo chirongwa fomati: MPEG-2
– Vhidhiyo mhando: 720×576 kana iri pamusoro pe4M
– urongwa: NTSC uye PAL inogona kusetwa
Mugamuchiri hwokugadzira Specification:
– Mugamuchiri frequency renji: 170-860Mhz, VHF uye UHF
– Frequency bandwidth: 2/3/4/5/6/7/8 Mhz, chinjika
– RF chiyero chekuisa:-94dbm-0dbm pa8M / -98dbm-0dbm pa2M
– RF chiyamuro impedance: 50Ohm
– RF chiyamuro chiteshi: chikoro
– Kusiyanisa inzwi: COFDM
– Iyo nzira renyeredzi: QPSK,16QAM,64QAM inosarudzika
– Forward kukanganisa kururamiswa: 1/2,2/3,3/4,5/6,7/8 Opsioneel
– Inotakura nhamba:2K
– Kudzivirirwa gwanza:1/32,1/16,1/8,1/4
– Screen chiyero:4:3,16:9
– vhidhiyo mufananidzo:720×576 @ 6Mhz
– Audio uye vhidhiyo inobuda port: mureza 3.5 poti
– Working voltage: DC12V 0.3A
Pasuru yaisanganisira:
– 1 x transmitter
– 1 x inogamuchira
– 1 seta x zvishongedzo
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
mubvunzo 1: Ndinoda angangoita 30km kubva kumhepo kuenda pasi kune UAV UGV USV.
mhinduro 1:Sisitimu yedu inoitsigira, inofanira kushandisa 2W simba gudzazwi, zviri nani kushandisa yakakosha antenna refu yekutamisa uye maviri epamusoro anogamuchira antenna.
COFDM-912T VS COFDM-908T
mubvunzo 2: Ndingasvika papi kana ndikashandisa transmitter uye inogamuchira zvese pasi?
mhinduro: Pakushandisa pasi, iyo inofambisa uye inogamuchira inofanirwa kuve neimwe mutsauko wehurefu kuti utumire madaro marefu.
Chinhambwe chakareba chete 2.5 makiromita kana chinotumira uye chinogamuchira zvese zviri pahurefu hwakafanana pasi. Ndokumbira uone vhidhiyo yedu yekuyedza; nekuti iyo inotumira uye inogamuchira inoiswa pamatanho akasiyana, rumwe rutivi ruri mugomo, rumwe rutivi ruri pagungwa, isu takashandisa default watts maviri kutumira 27 makiromita.
mubvunzo 3: Inotsigira nzvimbo yekushanda ye -20 madhigirii?
mhinduro: Ehe, akatsigira
mubvunzo 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
mhinduro: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
mubvunzo 5:Do you have any special case shells for marine use?
mhinduro: Ehe, Ndokumbira utarise mufananidzo uri pazasi. (For the transmitter with a three-proof shell, isina mvura, shockproof, anti-salt spray, 防水,防震,防盐雾)
Chengetedzo dzekugadzirisa odha
- maitikiro: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- kanyanga urefu: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 kana 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: For Rinofambisa, the different PA (simba gudzazwi) mukati, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
For mugamuchiri, 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 makiromita. 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.
Semuyenzaniso, 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, nezvimwewo.
- 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 mamita.
- 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 | THE | NLOS |
500MW | >10Km | <300M |
1W | >30Km | <500M |
5W | >60Km | <1500M |
20W | >120? km | <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. Semuyenzaniso, 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 maawa.
-
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. Nekuti COFDM inzira imwe chete kutapurirana, 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.
- Ehe, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ehe, we can build the transmission of telemetry and video in COFDM-908T.
- Chekutanga, 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 or. 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.
Ehe, 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
pari zvino, it does not support 1080i, nor does it support 4K transmission.
20km pamusoro pegungwa HDMI isina waya vhidhiyo transmitter uye inogamuchira bvunzo yechikepe kana kubva kumahombekombe kuenda kune chikepe
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
Reviews
Hapana wongororo asi.