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 umgama omde COFDM HDMI Transmitter Wireless Video Transmission inkqubo Umamkeli ngokupheleleyo Seta Audio Video TX RX for UAV Drone UGV 1080P
Faka
- kakhulu kuhlanganiswe, iimodyuli ezihlanganisiweyo zoyilo
- Sebenzisa itekhnoloji yokumodareyitha yeCOFDM, H.264 image coding technology
- Inokuhambisa itshaneli enye ye-1080P HDMI (iSDI ekhethiweyo) uphawu
- Ukulibaziseka okungaphantsi, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 millisecond.
- Bonke-round unxibelelwano, Musa ukoyika ngenxa yokwakhiwa kweendonga
- Ukunxibelelana ngesantya esiphezulu phakathi kokuhamba, the maximum moving speed can reach 600 km / ngeyure.
- Umatshini wokuhambisa ubushushu wesinki yealuminium, ukothuka, Waterproof case is optional.
- Inkxaso ye-LOS kunye ne-Non-line-of-sight (NLOS) Ukuhanjiswa kwefowuni
- Umgama awukho ngaphantsi 30 iikhilomitha eziphantsi kwemeko yomgca-wokubona ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Ukwamkela ngokungqinelanayo kweempawu zeaudiyo nevidiyo, Inkcazo ephezulu ye-HDMI1080P yeefomathi ezininzi ozikhethelayo, Inkcazo esemgangathweni yokukhutshwa komgangatho womfanekiso weDVD
- Umamkeli unokuqonda ukurekhodwa kwevidiyo kunye nemisebenzi yogcino
- 128-ukubethela kancinci kwe-AES kunye nokuseta
- Ulwenziwo Full ekhoyo
- Upgrade tool: Parameter Configure board
- Sebenzisa: UAV, Izithuthi & UGV
- Ukuguquguqula: COFDM
- ombane Working: Inkcazo: DC11V-DC13V
- current ukusebenza: 0.5~ 2W (kuxhomekeke PA ezahlukeneyo)
- Ugqithiso lwamandla: 0.5W~20W optional
Isiqulatho
isicelo
Le mveliso isetyenziselwa ubukhulu becala ukuqonda ubuchwephesha kunye nokuqokelelwa kobungqina bamasebe okhuseleko nawokhuseleko, Ukuhanjiswa komfanekiso okwenyani weemoto zomoya ezingacwangciswanga, iinqanawa ezingenamntu, Ukudluliselwa kunomathotholo nakumabonwakude, Usasazo lukanomathotholo nomabonakude ngqo: Ibala losasazo, kusasazo ezemidlalo, iindaba zasekuhlaleni, umoya uphile, studio, Uhambo lweentaba, kunye neminye imiba. Ilungele ukuhanjiswa kwefowuni ye-real-time yemifanekiso ekumgangatho ophezulu kwiindawo ezahlukeneyo ezintsonkothileyo ezinje ngeedolophu, iilwandle, neentaba.
Ukuhambisa Ukucacisa
indlela yokumodareyitha | COFDM |
ombane ukusebenza | Inkcazo: DC11V ~ DC13V |
ukusebenza ngoku | 0.5 IiWatts: DC0.6A DC12V, 1 IiWatts: Ixabiso eliphantsi, 2 IiWatts: ≤1.5A DC12V 5 IiWatts: ≤3.0A DC12V 10 IiWatts: ≤5.0A DC12V 20 IiWatts: ≤7.0A DC12V |
ulawulo lolawulo | Ujongano oluqhelekileyo lwe-RS232, 8 IiDatha zeDatha, 1 SiBit ephezulu, Ubungakanani beParity, Umlinganiselo weBaud: 19200 |
ujongano lwedatha ebonakalayo, | indlela enye ebonakalayo yokuhanjiswa kwezibuko, 8 IiDatha zeDatha, 1 Yeka iBit, Inkxaso yeOdd Parity, Ubungakanani beParity, Umlinganiso ongenazingcingo, Umlinganiselo weBaud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
iindlela zofihlo | Inkxaso ye-128-bit encryption |
imephu yokumodareyitha | QPSK (4QAM), 16QAM, 64QAM |
ukulungisa iphutha phambili | 1/2 2/3 3/4 5/6 7/ 8 |
Guard lokuphumla | 1/32 1/16 1/8 1/4 |
Inombolo yesiphathi | 2K |
Frequency bandwidth | 2 / 3 / 4 / 5 / 6 / 7 / 8M Uhlengahlengiso |
Ikhowudi yokudlulisa | 2000kbs ~ 20000kbs Adjustable |
adlulisele amandla | 0.5 / 1 / 2 / 5 / 10 IiWatts |
Ukuhambisa rhoqo | Any Frequency Customizable, Inyathelo 1MHz |
a flatness amandla | ngaphakathi kwe-10MHz ngaphandle kwe-0.2dB |
ubungakanani begxalaba | amandla emveliso angama-27dB, Umlinganiso wamagxa ungcono kune - 30dB |
yesibini yeharmonic | ≤-45dB |
EZINYE | 32Db |
igalelo levidiyo | 720×480 60I(NTSC), 720×576 50I(Pal), 720 50P, 720 60P, 1080 50I, 1080 60I, 1080 24P, 1080 25P, 1080 30P, 1080 50P, iindlela ezahlukeneyo ziyasebenza. |
HD Interface | lwetshiphu, SDI ngokuzithandela |
ifomathi yokufaka iikhowudi ividiyo | H.264 |
umgangatho wokhuselo | Yonke-i-aluminiyamu yohlobo lwe-chassis, anti-nokumelana, uyilo olothusayo |
inani labantu ngokubanzi | 9 x 6.4 x 2.3 i-cm |
Ubunzima Lilonke | ≤0.20KG |
Ukucaciswa komamkeli
Umatshini oxhonywe kwimilinganiselo yokufumana i-HD yamanqanaba amaninzi ebhendi | |
Fumana uluhlu lwamaxesha | 170-860MHz VHF&UHF |
Ububanzi bebhendi | 2/3/4/5/6/7/8MHz, ozikhethelayo |
Inqanaba lokufaka le-RF | -94dBm ~ -15dBm (8M bandwidth)/-98dBm ~ -15dBm (2M bandwidth) |
RF input ukuvimba | 50 ohms |
RF input isinxibelelanisi | N-intloko |
imo yedemodulation | COFDM |
Imo yeenkwenkwezi | QPSK, 16QAM, 64QAM (ozikhethelayo) |
ukulungisa iphutha phambili | 1/2, 2/3, 3/4, 5 /6,7/8 (ozikhethelayo) |
inombolo yenethiwekhi | 2k, |
lokuphumla unogada | 1/32, 1/16, 1/8, 1/4 (ozikhethelayo) |
ukumiswa kwevidiyo | MPEG-2MP@ML/H.264 |
umgangatho wento | 4: 3 16: 9 |
umfanekiso wevidiyo ngu | 720 * 576 @ 8MHz 1080P @ 60P |
Imodi yokuphuma komsindo | Isitiriyo esingenakulinganiswa 300 / 200mv |
Iziphumo zomsindo | iziphumo2Audio + 2umboniso yemveliso |
ombane yokusebenza | AC220V / DC12V <0.5A |
lobushushu operating | – 20+ 50 ℃ |
Ubungakanani bembonakalo | 480*260*45 (1U) isisu semoto |
izixhobo ubunzima | 1.5ikg (ulwimi lwendlela ezimbini 2.5Kg) |
Phawula: isinxibelelanisi esingagqibekanga yi-HDMI, ukuba ufuna imodeli yexabiso eliphantsi, isinxibelelanisi seVVBS Isidibanisi sevidiyo esityheli se-720p HDMI, ndiyacela Jonga apha kwenye imodeli.
inkcazelo:
– Esi sixhobo samkela iteknoloji yeCOFDM, edibanisa i-eriyali yokuhambisa, imodyuli yedijithali, audio, kunye nomsebenzi wevidiyo.
– Ubungakanani beCompact, ubushushu obuncinci, kunye noluhlu olude lokuhambisa
– iyahambelana nekhamera encinci, Inokwenza ukuba umfanekiso we-HD ubambe kwaye uhambise
– uluhlu lothumelo luya kuba lude ukuba luthatha i-eriyali yokuzuza okuphezulu
– Uluhlu lokuhambisa: 5000m (ngaphandle kokuphazamiseka)/500M nemiqobo iphazamisa
Iimbonakalo:
– Ubungakanani beCompact, uyilo lokumodareyitha
– Yamkela iteknoloji yokumodareyitha yeCOFDM, Itekhnoloji yoxinzelelo lwe-MPEG-2 yomfanekiso
– Unxibelelwano lwe-Omnidirectional
– unxibelelwano olukhawulezayo lwenza ukuba ukuhanjiswa kweaudiyo yevidiyo kunye nevidiyo
– Ityala le-aluminiyam elinomothuko
– Ukuhanjiswa kweNLOS
iinkcukacha:
umshini:
– Size:90x64x23mm
– ubunzima:200g
– antenna:22mm
umfumani
– ubungakanani: 87x70x20mm
– ubunzima:200g
– Ukuphakama kweantenna:42.5i-cm (inokugotywa)
Imigaqo technical
– Ukuguquguqula: COFDM
– ombane ukusebenza: Inkcazo: DC11V-DC13V
– current ukusebenza:0.5W: ngaphantsi kwe-0.6A @ DC12V
– ulawulo lwezibuko: I-standrad RS232 izibuko. 8-isuntswana ledatha, 1-khawume kancinci, isantya sebhawudi:19200, Inkxaso yokujonga ukulingana
– ukuhanjiswa kwedatha port:8 isuntswana ledatha,1 khawume kancinci, isantya sebhawudi,1200,2400,4800,9600,19200,38400,57600,115200,230400
– oluNgabonakaliyo: inkxaso 128 ufihlo
– awunandaba mapping: QPSK (4QAM),16QAM,64QQAM
– ukulungisa iphutha phambili: 1/2,2/3,3/4,5/6,7/8
– Khusela ixesha lokuphumla: 1/32,1/16,1/8,1/4
– Inombolo yesiphathi:2K
– Frequency bandwidth:2/3/4/5/6/7/8M uhlengahlengiso
– Umjelo wezothutho:2000I-kbs-20000kbs ezihlengahlengiswayo
– amandla okuhambisa: 2W
– Ukuhambisa rhoqo: ungenziwa ngemfuneko, inyathelo yi-1Mhz
– Amandla okubamba: ngaphantsi kwe-0.2db ngaphakathi kwe-10Mhz
– harmonic Second: ngaphantsi kwe -45db
– EZINYE:32DB
– igalelo levidiyo:1Sihlambo-p,75Ohm
– Ifomathi yenkqubo yevidiyo: MPEG-2
– Umgangatho wevidiyo: 720×576 xa ngaphezulu kwe-4M
– format: I-NTSC kunye ne-PAL zinokusetwa
Umamkeli imigaqo yobugcisa:
– Uluhlu lokufumana rhoqo: 170-860MHz, VHF kunye ne-UHF
– Frequency bandwidth: 2/3/4/5/6/7/8 MHz, -nokuhlengahlengiswa
– Inqanaba lokufaka le-RF:-94DBM-0dbm kwi8M / -98dbm-0dbm kwi-2M
– RF input ukuvimba: 50Ohm
– Igalelo le-RF: high School
– ukumodareyitha: COFDM
– Indlela yeenkwenkwezi: QPSK,16QAM,64Ukhetho lweQAM
– ukulungisa iphutha phambili: 1/2,2/3,3/4,5/6,7/8 ozikhethelayo
– Inombolo yesiphathi:2K
– Isikhuselo:1/32,1/16,1/8,1/4
– Inqanaba lesikrini:4:3,16:9
– umfanekiso wevidiyo:720×576 @ 6Mhz
– I-audio kunye nevidiyo yokukhupha izibuko: standard 3.5 port
– ombane Working: Inkcazo: DC12V 0.3A
Ukupakisha kuqukiwe:
– 1 x umthumeli
– 1 x umamkeli
– 1 setha izixhobo ze-x
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
umbuzo 1: Ndifuna ubuncinane i-30km ukusuka emoyeni ukuya emhlabeni kwi-UAV UGV USV.
Phendula 1:Inkqubo yethu iyayixhasa, Kuya kufuneka isebenzise i-2W yokukhulisa amandla, Kungcono ukusebenzisa i-eriyali ekhethekileyo yothumelo olude kunye nee-eriyali ezimbini eziphezulu zowamkeli.
I-COFDM-912T VS COFDM-908T
umbuzo 2: Ndingafika kude kangakanani ukuba ndisebenzisa isidluliseli kunye nomamkeli zombini emhlabeni?
Phendula: Ukusetyenziswa komhlaba, umthumeli kunye nomamkeli kufuneka abe nokwahlukana kobude obuthile ukuhambisa imigama emide.
Owona mgama mde kuphela 2.5 iikhilomitha ukuba isidluliseli kunye nomamkeli zombini zikumphakamo ofanayo emhlabeni. Nceda ubone ividiyo yethu yovavanyo; kuba isidluliseli kunye nomamkeli zibekwe kumanqanaba ahlukeneyo, elinye icala lisezintabeni, elinye icala liselwandle, sisebenzise i-watts ezimbini ezingagqibekanga ukuhambisa 27 iikhilomitha.
umbuzo 3: Ngaba iyayixhasa indawo yokusebenza ye -20 degrees?
Phendula: Ewe, inkxaso
umbuzo 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
Phendula: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
umbuzo 5:Do you have any special case shells for marine use?
Phendula: Ewe, Nceda ujonge lo mfanekiso ungezantsi. (For the transmitter with a three-proof shell, into evikela amanzi, ukothuka, anti-salt spray, 防水,防震,防盐雾)
Imiqathango yokwenziwa kweodolo ngokwezifiso
- Ubuninzi: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- Uthi ubude: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 okanye 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/.
Ii-FAQs
Q. What is the video resolution?
A: uqhagamshelwano lwetshiphu emsebenzi 1080P.
Q. Does the transmitter power current is high?
A: Kuba umshini, the different PA (iamplifier yamandla) ngaphakathi, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Kuba umfumani, 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 iikhilomitha. 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.
Umzekelo, 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 mitha.
- 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. Umzekelo, 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 iiyure.
-
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.
- Ewe, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ewe, we can build the transmission of telemetry and video in COFDM-908T.
- Ekuqaleni, 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 yi-13dBm
200mW yi 23dBm
1 IiWatts yi-30dBm
2 IiWatts yi33dBm
5 IiWatts yi37dBm
10 IiWatts yi-40dBm
20 IiWatts yi43dBm
50 IiWatts yi47dBm
100 IiWatts yi-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.
Ewe, 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
kungoku nje, it does not support 1080i, nor does it support 4K transmission.
20km ngaphaya kolwandle I-HDMI isidlulisi ividiyo engenazingcingo kunye novavanyo lomamkeli wesikhephe okanye ukusuka elunxwemeni ukuya enqanaweni
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
reviews
Akukho ukubuyekeza kodwa.