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
30-150I-Km yebanga elide i-COFDM HDMI Transmitter Wireless Video Transmission Receiver egcwele Setha Ividiyo Yomsindo TX RX ye-UAV Drone UGV 1080P
Isici
- Highly kuhlanganiswe, modular idizayini ehlangene
- Kusetshenziswa ubuchwepheshe bokushintshashintsha kwezwi be-COFDM, H.264 image coding technology
- Ingadlulisela isiteshi esisodwa se-HDMI engu-1080P (I-SDI yokuzikhethela) isignali
- Ukubambezeleka okuphansi, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 millisecond.
- Zonke-round zokuxhumana, ungawesabi lokwakha izindonga
- Ukuxhumana ngejubane eliphakeme phakathi kokuhamba, the maximum moving speed can reach 600 km / ihora.
- Transmitter ukushisa echibini uhlobo aluminium icala, i-shockproof, Waterproof case is optional.
- Sekela i-LOS kanye ne-Non-line-of-sight (NLOS) ukudluliswa kwamaselula
- Ibanga alikho ngaphansi 30 amakhilomitha ngaphansi kwesimo se-line-of-sight ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Ukwamukelwa okuvumelanayo kwezimpawu zomsindo nevidiyo, ifomethi yokucaca okuphezulu ye-HDMI1080P ongazikhethela, okujwayelekile okucaciswa ikhwalithi yesithombe se-DVD
- Umamukeli angabona imisebenzi yokuqopha ividiyo nokwenza isipele
- 128-ukubethela kwe-AES nokubethela okuncane
- Ukwenza ngokwezifiso okugcwele kuyatholakala
- Upgrade tool: Ipharamitha Lungiselela ibhodi
- Sebenzisa: UAV, Izimoto & I-UGV
- Ukushintshashintsha: COFDM
- voltage Ukusebenza: Ingxenye #: DC11V-DC13V
- zamanje Ukusebenza: 0.5~ 2W (kuye nge-PA ehlukene)
- Amandla okudlulisa: 0.5W~20W optional
Okuqukethwe
Isicelo
Lo mkhiqizo usetshenziswa kakhulu ekuhloleni kobuchwepheshe kanye nasekuqoqweni kobufakazi beminyango yokuhlola ukuphepha komphakathi nokuphepha, ukudluliswa kwesithombe sangempela kwezimoto zasemoyeni ezingagunyaziwe, imikhumbi engenamuntu, ukuhanjiswa komsakazo nethelevishini, ukusakazwa bukhoma emsakazweni nakumabonakude: inkundla yokusakaza, ezemidlalo ukusakaza, izindaba zomphakathi, umoya bukhoma, studio, i-mountaineering Expedition, nezinye izici. Kufanelekile ukudluliswa kweselula kwesikhathi sangempela kwezithombe ezisezingeni eliphakeme ezindaweni ezahlukahlukene eziyinkimbinkimbi njengezindawo zasemadolobheni, izilwandle, nezintaba.
Transmitter Ukucaciswa
indlela yokushintshashintsha kwezwi | COFDM |
voltage yokusebenza | I-DC11V ~ DC13V |
ukusebenza kwamanje | 0.5 Ama-Watts: ≤0.6A DC12V, 1 Ama-Watts: ≤0.8A DC12V, 2 Ama-Watts: ≤1.5A DC12V 5 Ama-Watts: ≤3.0A DC12V 10 Ama-Watts: ≤5.0A DC12V 20 Ama-Watts: ≤7.0A DC12V |
isilawuli esibonakalayo | isikhombimsebenzisi esijwayelekile se-RS232, 8 Idatha Bits, 1 Sphezulu Bit, I-Parity Bit, Isilinganiso se-Baud: 19200 |
okusobala kwesibonisi sedatha, | ukudluliselwa kwembobo ye-serial transparent serial way, 8 Idatha Bits, 1 Misa iBit, ukusekela Odd Parity, I-Parity Bit, I-Wireless Parity, Isilinganiso se-Baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
izindlela zokubethela | ukusekela ukubethela okungu-128-bit |
imephu yokushintshashintsha kwezwi | QPSK (4Unjiniyela: QAM), 16Unjiniyela: QAM, 64Unjiniyela: QAM |
phambili ukulungisa iphutha | 1/2 2/3 3/4 5/6 7/ 8 |
Guard isikhawu | 1/32 1/16 1/8 1/4 |
Inombolo yenkampani yenethiwekhi | 2K |
imvamisa komkhawulokudonsa | 2 / 3 / 4 / 5 / 6 / 7 / 8M Oguqukayo |
ukusakazwa kwekhodi yokudlulisa | 2000kbs ~ 20000kbs Adjustable |
adlulisa amandla | 0.5 / 1 / 2 / 5 / 10 Ama-Watts |
imvamisa yokudlulisa | Any Frequency Customizable, Isinyathelo 1MHz |
a flatness amandla | ngaphakathi kwe-10MHz ngaphandle kwe-0.2dB |
isilinganiso sehlombe | amandla okukhipha angu-27dB, isilinganiso sehlombe singcono kune -30dB |
i-harmonic yesibili | ≤-45dB |
OKUNINGI | 32Db |
ividiyo yokufaka | 720×480 60mina(NTSC), 720×576 50mina(PAL), 720 50P, 720 60P, 1080 50mina, 1080 60mina, 1080 24P, 1080 25P, 1080 30P, 1920X1080 50P, izindlela ezahlukahlukene ziyaguquguquka. |
I-HD Interface | HDMI, I-SDI iyakhethwa |
ifomethi yokufaka ikhodi ividiyo | H.264 |
indinganiso yokuvikela | i-chassis yohlobo lwe-all-aluminium radiator, anti-ukugqwala, ukwakheka kokushaqeka |
usayizi sekukonke | 9 x 6.4 x 2.3 cm |
Isisindo Sekukonke | ≤0.20KG |
Incazelo Yomamukeli
Amapharamitha wesamukeli we-Rack-mounted multi-bandwidth HD | |
Thola ububanzi bemvamisa | 170-860I-MHz VHF&UHF |
imvamisa bandwidth | 2/3/4/5/6/7/8MHz, ozikhethela |
Izinga lokufaka le-RF | -94dBm ~ -15dBm (8M-bandwidth)/-98dBm ~ -15dBm (2M-bandwidth) |
RF impedance okokufaka | 50 ohms |
RF isixhumi okokufaka | Ikhanda le-N |
imodi yokwehlisa amandla emodi | COFDM |
imodi yezinkanyezi | QPSK, 16Unjiniyela: QAM, 64Unjiniyela: QAM (ozikhethela) |
phambili ukulungisa iphutha | 1/2, 2/3, 3/4, 5 /6,7/8 (ozikhethela) |
inombolo yenkampani yenethiwekhi | 2k, |
unogada isikhawu | 1/32, 1/16, 1/8, 1/4 (ozikhethela) |
emagama evidiyo | MPEG-2MP@ML/H.264 |
ubukhulu besici | 4: 3 16: 9 |
isithombe sevidiyo sinjalo | 720 * 576 @ 8MHz 1080P @ 60P |
imodi yokukhipha umsindo | istiriyo asilingani 300 / 200mv |
okukhipha umsindo | ukukhishwa2Audio + 2okukhipha Isiqophi |
i-voltage yokusebenza | AC220V / DC12V <0.5A |
izinga lokusebenza | – 20~ ~ + 50 ℃ |
Usayizi wokubukeka | 480*260*45 (1U) isisu semoto |
isisindo semishini | 1.5kg (ulimi lwezindlela ezimbili 2.5Kg) |
inothi: isixhumi esizenzakalelayo yi-HDMI, uma udinga imodeli eshibhile, isixhumi seCVBS Yellow video connector 720p HDMI, Ngiyacela Bheka lapha kwenye imodeli.
incazelo:
– Le divayisi isebenzisa ubuchwepheshe be-COFDM, ehlanganisa i-antenna yokudlulisa, ukushintshashintsha kwezwi ledijithali, alalelwayo, kanye nomsebenzi wevidiyo.
– Usayizi ohlanganisiwe, ukushisa okuncane, nebanga lokudlulisa elide
– iyahambisana nekhamera encane, ingavumela ukuthwebula isithombe se-HD nokudlulisa
– ibanga lokudlulisela lizoba lide uma lamukela i-antenna enenzuzo ephezulu
– Transmission ububanzi: 5000m (ngaphandle kokuphazamiseka)/500M ngezithiyo ziyaphazamisa
Izici:
– Usayizi ohlanganisiwe, ukwakheka kokushintshashintsha kwezwi
– Yamukela ubuchwepheshe bokushintshashintsha kwezwi beCOFDM, Ubuchwepheshe be-MPEG-2 com com compression
– Ukuxhumana kwe-Omnidirectional
– ukuxhumana ngejubane kwenza ukudluliswa komsindo nevidiyo ngesikhathi sangempela
– Ikesi le-aluminium elingangenwa yi-shockproof
– Ukudluliswa kwe-NLOS
Imininingwane:
Transmitter:
– Usayizi:90x64x23mm
– isisindo:200g
– I-antenna:22mm
Receiver
– usayizi: 87x70x20mm
– isisindo:200g
– Ukuphakama kwe-Antenna:42.5cm (ingagotshwa)
Ukucaciswa kobuchwepheshe
– Ukushintshashintsha: COFDM
– voltage yokusebenza: Ingxenye #: DC11V-DC13V
– zamanje Ukusebenza:0.5W: ngaphansi kuka-0.6A @ DC12V
– lawula imbobo: imbobo ye-standrad RS232. 8-izingcosana zedatha, 1-kancane ukuma kancane, Translations into Zulu izinga:19200, ukusekela isheke elingalingani
– imbobo yedatha yokudlulisa:8 izingcosana zedatha,1 kancane ukuma kancane, Translations into Zulu izinga,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Ukubethela: ukweseka 128 ukubethela
– Ukushintshashintsha yangokwesiko: QPSK (4Unjiniyela: QAM),16Unjiniyela: QAM,64I-QQAM
– Phambili ukulungisa iphutha: 1/2,2/3,3/4,5/6,7/8
– Vikela isikhawu: 1/32,1/16,1/8,1/4
– Inombolo yenkampani yenethiwekhi:2K
– imvamisa komkhawulokudonsa:2/3/4/5/6/7/8M eguquguqukayo
– umfudlana wezokuthutha:2000kbs-20000kbs adjustable
– amandla okudlulisa: 2W
– imvamisa yokudlulisa: kungenziwa egcizelele, isinyathelo ngu-1Mhz
– amandla flatness: ngaphansi kuka-0.2db ngaphakathi kwe-10Mhz
– harmonic Okwesibili: ngaphansi kuka -45db
– OKUNINGI:32db
– ividiyo yokufaka:1VP-p,75Ohm
– Ifomethi yohlelo lwevidiyo: MPEG-2
– Ikhwalithi yevidiyo: 720×576 lapho ngenhla kwe-4M
– Ifomethi: I-NTSC ne-PAL ingasethwa
Isicacisi sobuchwepheshe besamukeli:
– Ibanga lokuvama kokutholwa: 170-860MHz, I-VHF ne-UHF
– imvamisa komkhawulokudonsa: 2/3/4/5/6/7/8 MHz, adjustable
– Izinga lokufaka le-RF:-94dBm-0dbm ku-8M / -98dbm-0dbm ku-2M
– RF impedance okokufaka: 50Ohm
– Imbobo yokufaka ye-RF: Isikole samabanga aphezulu
– ukushintshashintsha kwezwi: COFDM
– Indlela yezinkanyezi: QPSK,16Unjiniyela: QAM,64I-QAM ingakhethwa
– Phambili ukulungisa iphutha: 1/2,2/3,3/4,5/6,7/8 ozikhethela
– Inombolo yenkampani yenethiwekhi:2K
– Igebe lokuvikela:1/32,1/16,1/8,1/4
– Isilinganiso sesikrini:4:3,16:9
– isithombe sevidiyo:720×576 @ 6Mhz
– Imbobo yokukhipha umsindo nevidiyo: ejwayelekile 3.5 port
– voltage Ukusebenza: Ingxenye #: DC12V 0.3A
Iphakheji ifakiwe:
– 1 x isidlulisi
– 1 x umamukeli
– 1 setha izesekeli ze-x
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
umbuzo 1: Ngidinga okungenani ibanga elingu-30km ukusuka emoyeni kuye phansi ukuze ngithole i-UAV UGV USV.
impendulo 1:Uhlelo lwethu luyayisekela, kufanele isebenzise isikhulisi samandla esingu-2W, kungcono ukusebenzisa i-antenna eyisipesheli ende kanye nezimpondo ezimbili ezamukelayo eziphezulu.
I-COFDM-912T VS COFDM-908T
umbuzo 2: Ngingafinyelela kude kangakanani uma ngisebenzisa isidluliseli nomamukeli kokubili phansi?
impendulo: Ukusetshenziswa phansi, i-transmitter nomamukeli kufanele ibe nomehluko othile wobude ukuze idlulise amabanga amade.
Ibanga elide kakhulu kuphela 2.5 amakhilomitha uma isidlulisi nomamukeli kokubili kubude obufanayo phansi. Sicela ubone ividiyo yethu yokuhlola; ngoba isidlulisi nomamukeli zibekwe emazingeni ahlukene, olunye uhlangothi lusentabeni, olunye uhlangothi ngasolwandle, sisebenzise ama-watts amabili azenzakalelayo ukuze sidlulise 27 amakhilomitha.
umbuzo 3: Ingabe isekela indawo yokusebenza ye -20 degrees?
impendulo: Yebo, asekelwe
umbuzo 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
impendulo: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
umbuzo 5:Do you have any special case shells for marine use?
impendulo: Yebo, Sicela uhlole isithombe esingezansi. (For the transmitter with a three-proof shell, engenamanzi, i-shockproof, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- imvamisa: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- antenna obuphelele: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 noma 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/.
Imibuzo Evame Ukubuzwa
Q. What is the video resolution?
A: -HDMI 1080P.
Q. Does the transmitter power current is high?
A: Ngoba Transmitter, the different PA (i-amplifier yamandla) ngaphakathi, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Ngoba Receiver, 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 amakhilomitha. 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.
Ngokwesibonelo, 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, njll.
- 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 amamitha.
- 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. Ngokwesibonelo, 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 amahora.
-
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. Ngoba i-COFDM iwukudlulisela ngendlela eyodwa, 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.
- Yebo, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Yebo, we can build the transmission of telemetry and video in COFDM-908T.
- Okokuqala, 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.
Yebo, 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, 1080I-HDMI noma i-SDI noma i-CVBS, 1080I-HDMI noma i-SDI noma i-CVBS
okwamanje, it does not support 1080i, nor does it support 4K transmission.
20km ngaphezu kolwandle I-HDMI isidlulisi sevidiyo esingenantambo kanye nokuhlolwa komamukeli wesikebhe noma usuka ogwini uye emkhunjini
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
Long-range 50 I-Watts Power Amplifier Transmitter and Receiver
Manual yomsebenzisi
isisindo | 5 kg |
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Izibuyekezo
Azikho izibuyekezo okwamanje.