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 long-distans COFDM HDMI Transmetè Wireless Videyo Transmisyon sistèm Reseptè konplè Set Audio Videyo TX RX pou UAV Drone UGV 1080P
karakteristik
- trè entegre, modilè konsepsyon konbine
- Sèvi ak teknoloji modulation COFDM, H.264 image coding technology
- Li ka transmèt yon sèl kanal nan 1080P HDMI (opsyonèl SDI) siyal
- Pi ba reta, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milisgond.
- Tout moun-wonn kominikasyon, pa bezwen pè nan bilding mi
- High-vitès kominikasyon ant vwayaje, the maximum moving speed can reach 600 km / èdtan.
- Transmetè koule chalè kalite aliminyòm ka, shockproof, Waterproof case is optional.
- Sipòte LOS ak Non-line-of-sight (NLOS) mobil transmisyon
- Distans la pa mwens pase 30 kilomèt anba kondisyon liy-de-vi ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Synchronous resepsyon nan siyal odyo ak videyo, segondè-definisyon HDMI1080P milti-fòma si ou vle, estanda-definisyon pwodiksyon DVD bon jan kalite imaj
- Reseptè a ka reyalize anrejistreman videyo ak fonksyon backup
- 128-ti jan AES chifreman ak dekriptaj
- Full personnalisation ki disponib
- Upgrade tool: Parameter Configure board
- sèvi ak: dron, Machin yo & UGV
- modulation: COFDM
- Travay vòltaj: DC11V-DC13V
- K ap travay aktyèl: 0.5~ 2W (depann sou diferan PA)
- Transmisyon pouvwa: 0.5W~20W optional
Table of Contents
aplikasyon
Pwodwi sa a sitou itilize nan rekonesans teknik ak prèv koleksyon sekirite piblik ak depatman enspeksyon sekirite, transmisyon imaj an tan reyèl nan machin sans ayeryen, bato san moun, relè radyo ak televizyon, emisyon an dirèk radyo ak televizyon: difize jaden, espò difizyon, nouvèl sosyal, lè ap viv, estidyo, Alpinis ekspedisyon, ak lòt aspè. Li apwopriye pou an tan reyèl transmisyon mobil nan imaj-wo kalite nan divès anviwònman konplèks tankou zòn iben, lanmè, ak mòn.
Transmetè Specification
metòd modulation | COFDM |
k ap travay vòltaj | DC11V ~ DC13V |
k ap travay kounye a | 0.5 Wat: ≤0.6A DC12V, 1 Wat: ≤0.8A DC12V, 2 Wat: ≤1.5A DC12V 5 Wat: ≤3.0A DC12V 10 Wat: ≤5.0A DC12V 20 Wat: ≤7.0A DC12V |
koòdone kontwòl | estanda RS232 koòdone, 8 Done Bits, 1 Stèt Bit, Bit Parite, To Baud: 19200 |
transparan done koòdone, | yon yon sèl-fason transparan transmisyon pò seri, 8 Done Bits, 1 One Stop Bit, sipòte enpè parite, Bit Parite, San fil parite, To Baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
metòd chifreman | sipòte chifreman 128-ti jan |
kat modulation | QPSK (4QAM), 16QAM, 64QAM |
pou pi devan koreksyon erè | 1/2 2/3 3/4 5/6 7/ 8 |
entèval Gad | 1/32 1/16 1/8 1/4 |
Nimewo konpayi asirans lan | 2K |
frekans Pleasant | 2 / 3 / 4 / 5 / 6 / 7 / 8M reglabl |
transmisyon kòd kouran | 2000kbs ~ 20000kbs Reglabl |
transmèt pouvwa | 0.5 / 1 / 2 / 5 / 10 Wat |
frekans transmisyon | Any Frequency Customizable, Etap 1MHz |
yon platite pouvwa | nan 10MHz bandless pase 0.2dB |
rapò nan zepòl | pouvwa pwodiksyon an nan 27dB, rapò zepòl se pi bon pase -30dB |
dezyèm Harmony la | ≤-45dB |
PLIS | 32Db |
videyo opinyon | 720×480 60mwen(NTSC), 720×576 50mwen(PAL), 720 50P, 720 60P, 1080 50mwen, 1080 60mwen, 1080 24P, 1080 25P, 1080 30P, 1080 50P, divès mòd yo adapte. |
Entèfas HD | dmi, SDI si ou vle |
fòma kodaj videyo | H.264 |
estanda pwoteksyon | tout-aliminyòm radyatè-kalite chasi, anti-korozyon, konsepsyon chòk-prèv |
An jeneral gwosè | 9 x 6.4 x 2.3 cm |
An jeneral pwa | ≤0.20KG |
Espesifikasyon Reseptè
Machin Rack-monte milti-band paramèt reseptè HD | |
Resevwa ranje frekans | 170-860Megaèrts VHF&UHF |
frekans frekans | 2/3/4/5/6/7/8megaèrts, si ou vle |
Nivo opinyon RF | -94dBm ~ -15dBm (8M Pleasant)/-98dBm ~ -15dBm (2M Pleasant) |
RF opinyon enpedans | 50 om |
RF opinyon Connector | N-tèt |
mòd demodulasyon | COFDM |
mòd konstelasyon | QPSK, 16QAM, 64QAM (si ou vle) |
pou pi devan koreksyon erè | 1/2, 2/3, 3/4, 5 /6,7/8 (si ou vle) |
nimewo konpayi asirans lan | 2k, |
entèval gad palè | 1/32, 1/16, 1/8, 1/4 (si ou vle) |
dekodaj videyo | MPEG-2MP@ML/H.264 |
aspè rapò | 4: 3 16: 9 |
imaj videyo se | 720 * 576 @ 8MHz 1080P @ 60P |
mòd pwodiksyon odyo | stereo dezekilib 300 / 200mv |
pwodiksyon odyo | output2Audio + 2pwodiksyon Videyo |
opere vòltaj | AC220V / DC12V <0.5Yon |
tanperati Operating | – 20~ ~ + 50 ℃ |
Gwosè aparans | 480*260*45 (1U) chasi |
pwa ekipman | 1.5KG (de-fason lang 2.5Kg) |
Remak: Connector default la se HDMI, si ou bezwen modèl la pi bon mache, yon konektè pou CVBS jòn videyo Connector 720p HDMI, tanpri Tcheke isit la pou yon lòt modèl.
Deskripsyon:
– Aparèy sa a adopte teknoloji COFDM, ki entegre antèn transmisyon, modulation dijital, odyo, ak fonksyon videyo.
– Kontra enfòmèl ant gwosè, ti chalè, ak ranje transmisyon long
– konpatib ak yon ti kamera, te kapab pèmèt kapti imaj HD ak transmisyon
– ranje transmisyon an pral pi long si li adopte antèn gwo benefis
– Ranje transmisyon: 5000m (san okenn entèripsyon)/500M ak obstak entèwonp
Karakteristik:
– Kontra enfòmèl ant gwosè, konsepsyon modulation
– Adopte teknoloji modulation COFDM, MPEG-2 imaj konpresyon teknoloji
– Omnidirectional kominikasyon
– gwo vitès kominikasyon pèmèt an tan reyèl transmisyon odyo ak videyo
– Yon ka aliminyòm ki se chok
– NLOS transmisyon
Espesifikasyon:
emetris:
– Kantite moun ki:90x64x23mm
– pwa:200g
– antèn:22mm
Reseptè
– gwosè: 87x70x20mm
– pwa:200g
– Antèn wotè:42.5cm (ta ka koube)
Spesifikasyon teknik
– modulation: COFDM
– k ap travay vòltaj: DC11V-DC13V
– K ap travay aktyèl:0.5W: mwens pase 0.6A @ DC12V
– pò kontwòl: pò RS232 standrad. 8-ti jan done Bits, 1-bit sispann bit, transmissions pousantaj:19200, sipòte chèk parite enpè
– transmisyon pò done:8 ti jan done Bits,1 bit sispann bit, transmissions pousantaj,1200,2400,4800,9600,19200,38400,57600,115200,230400
– ankriptaj: sipò 128 chifreman
– batman kat: QPSK (4QAM),16QAM,64QQAM
– Forward koreksyon erè: 1/2,2/3,3/4,5/6,7/8
– Pwoteje entèval la: 1/32,1/16,1/8,1/4
– Nimewo konpayi asirans lan:2K
– frekans Pleasant:2/3/4/5/6/7/8M reglabl
– kouran transpò:2000kbs-20000kbs reglabl
– pouvwa transmisyon: 2W
– frekans transmisyon: ta ka Customized, etap se 1Mhz
– pouvwa plat: mwens pase 0.2db nan 10Mhz
– dezyèm Harmony: mwens pase -45db
– PLIS:32db
– videyo opinyon:1Vp-p,75om
– Fòma pwogram videyo: MPEG-2
– Bon jan kalite videyo: 720×576 lè pi wo a 4M
– fòma: NTSC ak PAL ta ka mete
Reseptè spesifikasyon teknik:
– Ranje frekans reseptè: 170-860megaèrts, VHF ak UHF
– frekans Pleasant: 2/3/4/5/6/7/8 megaèrts, reglabl
– Nivo opinyon RF:-94dbm-0dbm nan 8M / -98dbm-0dbm nan 2M
– RF opinyon enpedans: 50om
– RF opinyon pò: Lekòl Segondè
– modulation: COFDM
– Fason konstelasyon an: QPSK,16QAM,64QAM si ou vle
– Forward koreksyon erè: 1/2,2/3,3/4,5/6,7/8 si ou vle
– Nimewo konpayi asirans lan:2K
– Pwoteksyon gap:1/32,1/16,1/8,1/4
– To ekran:4:3,16:9
– imaj videyo:720×576 @ 6Mhz
– Pò pwodiksyon odyo ak videyo: estanda 3.5 pò
– Travay vòltaj: DC12V 0.3A
Pake enkli:
– 1 x transmetè
– 1 x reseptè
– 1 mete akseswa x
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
kesyon 1: Mwen bezwen omwen yon ranje 30km soti nan lè a tè pou UAV UGV USV la.
repons 1:Sistèm nou an sipòte li, li ta dwe itilize yon anplifikatè pouvwa 2W, li se pi bon yo sèvi ak espesyal antèn transmetè long la ak de antèn reseptè ki pi wo.
COFDM-912T VS COFDM-908T
kesyon 2: Ki distans mwen ka jwenn si mwen itilize transmetè a ak reseptè tou de sou tè a?
repons: Sou tè itilize, transmetè a ak reseptè dwe gen yon diferans wotè sèten transmèt distans ki long.
Distans ki pi long la se sèlman 2.5 kilomèt si transmetè a ak reseptè yo tou de nan menm wotè sou tè a. Tanpri gade videyo tès nou an; paske transmetè a ak reseptè yo mete nan diferan nivo, yon bò se sou mòn lan, yon lòt bò se bò lanmè a, nou itilize default de watt yo transmèt 27 kilomèt.
kesyon 3: Èske li sipòte yon anviwònman k ap travay nan -20 degre?
repons: Wi, sipòte
kesyon 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
repons: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
kesyon 5:Do you have any special case shells for marine use?
repons: Wi, Tanpri tcheke foto ki anba a. (For the transmitter with a three-proof shell, ki enpèmeyab, shockproof, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- frekans: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- antèn longè: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 oswa 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/.
FAQ
K. What is the video resolution?
Yon: dmi 1080P.
K. Does the transmitter power current is high?
Yon: Pou emetris, the different PA (pouvwa anplifikatè) andedan, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Pou Reseptè, the current is only 0.3Yon (300MA)
K: Like we only need 10km, how much PA is recommended?
Yon: 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 kilomèt. 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.
K: What frequency is better? 2.4G or 5.8G?
Yon: 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.
K: Can customers adjust the frequency by themselves? If sometimes the frequency is occupied.
Yon: The default center frequency is 595Mhz, generally there is +/-15Mhz bandwidth, which is 30Mhz, and the frequency range can be adjusted. (580-610megaèrts).
Beyond this range, it is necessary to change the antenna and PA customized according to this center frequency.
K:How does the customer adjust the frequency of the transmitter or receiver? Is there any software to change the frequency?
Yon: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.
K: Can I adjust the power amplifier on the transmitter?
Yon: 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.
Pa egzanp, 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, elatriye.
- 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 mèt.
- 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 | an | 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. Pa egzanp, 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 èdtan.
-
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.
- Wi, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Wi, we can build the transmission of telemetry and video in COFDM-908T.
- Premye, 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.
Wi, 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, 1080Bann Frekans, 1080Bann Frekans
kounye a, it does not support 1080i, nor does it support 4K transmission.
20km sou lanmè HDMI transmetè videyo san fil ak tès reseptè pou bato oswa soti nan rivaj nan bato
Long-ranje 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
Revi
Pa gen okenn revizyon ankò.