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 jarak jauh COFDM HDMI Transmitter Sistem Transmisi Video Nirkabel Receiver Set Lengkap Audio Video TX RX untuk UAV Drone UGV 1080P
Feature
- Highly Integrasi, desain gabungan modular
- Nggunakake teknologi modulasi COFDM, H.264 image coding technology
- Bisa ngirim siji saluran 1080P HDMI (opsional SDI) sinyal
- Tundha ngisor, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milliseconds.
- Kabeh-babak Komunikasi, ora wedi saka bangunan tembok
- Komunikasi kecepatan tinggi antarane lelungan, the maximum moving speed can reach 600 km / jam.
- Kasus aluminium tipe sink panas pemancar, shockproof, Waterproof case is optional.
- Ndhukung LOS lan Non-line-of-sight (NLOS) transmisi seluler
- Jarak ora kurang saka 30 kilometer ing kondhisi garis-garis pandang ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Resepsi audio sinyal audio lan video sing padha, definisi tinggi HDMI1080P multi-format opsional, kualitas gambar output DVD definisi standar
- Panrima bisa nyadari fungsi ngrekam video lan gawe serep
- 128-enkripsi bit AES lan dekripsi
- Kustomisasi lengkap kasedhiya
- Upgrade tool: Parameter Configure board
- Gunakake: UAV, Kendharaan & UGV
- modulasi: COFDM
- voltase Pakaryan: DC11V-DC13V
- saiki apa: 0.5~ 2W (gumantung ing PA beda)
- daya transmisi: 0.5W~20W optional
Daftar Isi
aplikasi
Produk iki biasane digunakake ing pengintaian teknis lan koleksi bukti departemen inspeksi keamanan lan keamanan umum, transmisi gambar real-time kendharaan udara tanpa angkasa, kapal ora duweke, relay radio lan televisi, siaran langsung radio lan televisi: lapangan siaran, Broadcast olahraga, warta sosial, udhara urip, studio, Ekspedisi gunung, lan aspek liyane. Cocog kanggo ngirim gambar ponsel kanthi nyata kanthi nyata ing macem-macem lingkungan kompleks kayata wilayah kutha, segara, lan gunung.
Spesifikasi Transmitter
cara modulasi | COFDM |
voltase digunakake | DC11V ~ DC13V |
saiki digunakake | 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 |
antarmuka kontrol | antarmuka RS232 standar, 8 Bit Data, 1 Sndhuwur Bit, Paritas Bit, Tingkat Baud: 19200 |
antarmuka data transparan, | transmisi port serial siji arah transparan, 8 Bit Data, 1 Mandheg Bit, dhukungan Odd Parity, Paritas Bit, Paritas nirkabel, Tingkat Baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
cara enkripsi | dhukungan enkripsi 128-bit |
pemetaan modulasi | QPSK (4Qam), 16Qam, 64Qam |
koreksi kesalahan maju | 1/2 2/3 3/4 5/6 7/ 8 |
interval njaga | 1/32 1/16 1/8 1/4 |
Nomer operator | 2K |
bandwidth frekuensi | 2 / 3 / 4 / 5 / 6 / 7 / 8M Luwes |
stream kode transmisi | 2000kbs ~ 20000kbs Luwes |
ngirimake listrik | 0.5 / 1 / 2 / 5 / 10 Watts |
frekuensi transmisi | Sembarang Frekuensi Customizable, Langkah 1MHz |
a flatness daya | within10MHz bandless saka 0.2dB |
rasio pundhak | daya output 27dB, rasio pundhak luwih apik tinimbang -30dB |
harmoni nomer loro | ≤-45dB |
MORE | 32Db |
video input | 720×480 60Aku(NTSC), 720×576 50Aku(PAL), 720 50P, 720 60P, 1080 50Aku, 1080 60Aku, 1080 24P, 1080 25P, 1080 30P, 1080 50P, macem-macem mode adaptif. |
Antarmuka HD | HDMI, SDI opsional |
format enkoding video | H.264 |
standar proteksi | sasis jinis radiator kabeh-aluminium, anti-karat, desain kejut-bukti |
sakabèhé ukuran | 9 x 6.4 x 2.3 cm |
Bobot umume | ≤0.20KG |
Spesifikasi Panrima
Parameter panrima HD multi-bandwidth HD sing dipasang ing rak | |
Nampa sawetara frekuensi | 170-860MHz VHF&UHF |
bandwidth frekuensi | 2/3/4/5/6/7/8MHz, pilihan |
Tingkat input RF | -94dBm ~ -15dBm (8M bandwidth)/-98dBm ~ -15dBm (2M bandwidth) |
input impedansi RF | 50 ohms |
konektor input RF | N-sirah |
mode demodulasi | COFDM |
mode rasi lintang | QPSK, 16Qam, 64Qam (pilihan) |
koreksi kesalahan maju | 1/2, 2/3, 3/4, 5 /6,7/8 (pilihan) |
nomer operator | 2k, |
interval njaga | 1/32, 1/16, 1/8, 1/4 (pilihan) |
dekoding video | MPEG-2MP@ML/H.264 |
rasio aspek | 4: 3 16: 9 |
gambar video yaiku | 720 * 576 @ 8MHz 1080P @ 60P |
mode output audio | stereo ora imbang 300 / 200mv |
output audio | output2Audio + 2output video |
voltase operasi | AC220V / DC12V <0.5A |
suhu operasi | – 20~ + 50 ℃ |
Ukuran tampilan | 480*260*45 (1U) sasis |
bobot peralatan | 1.5kg (basa rong arah 2.5Kg) |
Wigati: konektor gawan yaiku HDMI, yen sampeyan butuh model sing luwih murah, konektor kanggo konektor video CVBS Kuning 720p HDMI, please Priksa kene kanggo model liyane.
Gambaran:
– Piranti iki nggunakake teknologi COFDM, sing nggabungake antena transmisi, modulasi digital, audio, lan fungsi video.
– Ukuran kompak, panas cilik, lan jangkoan transmisi dawa
– kompatibel karo kamera cilik, bisa ngaktifake panangkepan gambar lan transmisi HD
– sawetara transmisi bakal maneh yen adopts antena gain dhuwur
– Range transmisi: 5000m (tanpa ngganggu)/500M kanthi alangan ngganggu
fitur:
– Ukuran kompak, desain modulasi
– Ngadopsi teknologi modulasi COFDM, Teknologi kompresi gambar MPEG-2
– Komunikasi Omnidirectional
– komunikasi kanthi kecepatan tinggi ngidini transmisi audio lan video wektu nyata
– Kasus aluminium sing tahan guncangan
– Panularan NLOS
specifications:
Transmitter:
– Size:90x64x23mm
– bobot:200g
– antena:22mm
panrima
– ukuran: 87x70x20mm
– bobot:200g
– Dhuwur antena:42.5cm (bisa ditekuk)
Spesifikasi teknis
– modulasi: COFDM
– voltase digunakake: DC11V-DC13V
– saiki apa:0.5W: kurang saka 0.6A @ DC12V
– port kontrol: port RS232 standrad. 8-bit data, 1-dicokot mandheg dicokot, rate Baud:19200, dhukungan mriksa paritas ganjil
– port data transmisi:8 bit data,1 dicokot mandheg dicokot, rate Baud,1200,2400,4800,9600,19200,38400,57600,115200,230400
– enkripsi: nyokong 128 enkripsi
– pemetaan modulasi: QPSK (4Qam),16Qam,64QQAM
– koreksi kesalahan maju: 1/2,2/3,3/4,5/6,7/8
– Lindhungi interval: 1/32,1/16,1/8,1/4
– Nomer operator:2K
– bandwidth frekuensi:2/3/4/5/6/7/8M luwes
– stream transportasi:2000kbs-20000kbs bisa disetel
– daya transmisi: 2W
– frekuensi transmisi: bisa disesuaikan, langkah iku 1Mhz
– kekuwatan kekuwatan: kurang saka 0.2db ing jero10Mhz
– kapindho selaras: kurang saka -45db
– MORE:32dB
– video input:1VP-p,75ohm
– Format program video: MPEG-2
– Kualitas video: 720×576 nalika ndhuwur 4M
– format: NTSC lan PAL bisa disetel
Spesifikasi teknis panrima:
– Rentang frekuensi panrima: 170-860MHz, VHF lan UHF
– bandwidth frekuensi: 2/3/4/5/6/7/8 MHz, luwes
– Tingkat input RF:-94dbm-0dbm ing 8M / -98dbm-0dbm jam 2M
– input impedansi RF: 50ohm
– Port input RF: SMA
– modulasi: COFDM
– Cara konstelasi: QPSK,16Qam,64QAM opsional
– koreksi kesalahan maju: 1/2,2/3,3/4,5/6,7/8 pilihan
– Nomer operator:2K
– Kesenjangan proteksi:1/32,1/16,1/8,1/4
– Tingkat layar:4:3,16:9
– gambar video:720×576 @ 6Mhz
– Port output audio lan video: standar 3.5 port
– voltase Pakaryan: DC12V 0.3A
Paket kalebu:
– 1 x pemancar
– 1 x panrima
– 1 nyetel x aksesoris
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
Pitakonan 1: Aku kudu paling 30km sawetara saka udhara kanggo lemah kanggo UAV UGV USV.
jawaban 1:Sistem kita ndhukung, kudune nggunakake penguat daya 2W, luwih apik nggunakake antena pemancar dawa khusus lan loro antena panrima sing luwih dhuwur.
COFDM-912T VS COFDM-908T
Pitakonan 2: Carane adoh aku bisa njaluk yen aku nggunakake pemancar lan panrima loro ing lemah?
jawaban: Ing panggunaan lemah, pemancar lan panrima kudu duwe prabédan dhuwur tartamtu kanggo ngirim jarak dawa.
Jarak paling dawa mung 2.5 kilometer yen pemancar lan panrima loro ing dhuwur padha ing lemah. Mangga deleng video tes kita; amarga pemancar lan panrima diselehake ing tingkat sing beda, sisih siji ana ing gunung, sisih liyane ana ing pinggir segara, kita digunakake standar loro watt kanggo ngirim 27 kilometer.
Pitakonan 3: Apa ndhukung lingkungan kerja saka -20 derajat?
jawaban: Ya, didhukung
Pitakonan 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
jawaban: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
Pitakonan 5:Do you have any special case shells for marine use?
jawaban: Ya, Mangga dipriksa ing ngisor iki Gambar. (For the transmitter with a three-proof shell, anti banyu, shockproof, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- frekuensi: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- dawa antena: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 utawa 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/.
Pitakonan
Q. What is the video resolution?
A: HDMI 1080P.
Q. Does the transmitter power current is high?
A: Kanggo Transmitter, the different PA (daya amplifier) nang njero, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Kanggo panrima, 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 kilometer. 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.
Tuladhane, 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, etc.
- 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 meter.
- 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 | >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. Tuladhane, 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 jam.
-
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.
- Ya, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ya, we can build the transmission of telemetry and video in COFDM-908T.
- dhisik, 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 watt. 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.
Ya, 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, 1080Pita frekuensi, 1080Pita frekuensi
saiki, it does not support 1080i, nor does it support 4K transmission.
20km liwat segara HDMI pemancar video nirkabel lan test panrima kanggo prau utawa saka dharat kanggo kapal
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
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