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-distance COFDM HDMI Transmitter Wireless Video Transmission system Receiver full Set Audio Video TX RX for UAV Drone UGV 1080P
Hohoa
- E mau melo ana'e to te reira, hoho'a amui
- Faa'ohipa i te rave'a aravihi no te faatiti'airaa i te i'oa COFM, H.264 image coding technology
- E nehenehe te reira e faatae atu i te hoê reni o te 1080P HDMI (e ma'iti ia SDI) tapa'o faa'ite
- Faaiti i te faataimeraa, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 faaî i te taata.
- Aparauraa na te mau taata atoa, eiaha e mata'u i te paturaa i te mau papa'i
- Haaparareraa mana'o vitiviti i rotopu i te ratereraa, the maximum moving speed can reach 600 km/hora.
- Puta pape pape ve'ave'a, faahaparaa hitimahuta, Waterproof case is optional.
- Te patururaa LOS e te mea ite-ore-hia (NLOS) haponoraa afa'ifa'i
- E ere te atearaa i te mea iti a'e i te 30 kilometera i raro a'e i te reni mata ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Faariiraa i te mau tapa'o faaroo e video, faanahoraa papa'iraa teitei HDMI1080P no te ma'iti i te ma'iti, faufaa tumu no te mau hoho'a DVD no te iritiraa
- E nehenehe ta te taata farii e ite i te mau tauihaa haruharuraa video e te monoraa
- 128-faaunaunaraa e te faariiraa a AES
- Te vai nei te mau hoho'a tumu
- Upgrade tool: Parameter Configure board
- Faaohiparaa i te: UAV, Mau pereoo & UGV
- Modulation: COFDM
- Rave i te ohipa voltage: PHPF11V-PHPF13V
- Rave ra i te ohipa: 0.5~2W (Te mau mana'o tauturu no te haapiiraa)
- Mana haponoraa: 0.5W~20W optional
Tabula ohipa
No te faaohiparaa
Te rahiraa o te taime e faaohipahia teie tauihaa i roto i te imiraa i te pae no te faatereraa i te matini e te faaiteraa no te tahi atu mau tuhaa faatere no te parururaa e te hi'opo'araa i te parururaa i te huiraatira, hoho'a faaite i te taime tano no te mau pereoo, mau pahi tau, te ratio e te tâtâ'i afata teata, te radio e te afata teata haapurororaa ti'a: tuhaa haapurororaa, haapurororaa tu'aro, parau apî sotiare, te ora nei te hau, fare raveraa ohipa, haere-faahou-raa'tu, e te tahi atu mau mea. E mea tano no te faaite i te afa'ifa'iraa afa'ifa'i i roto i te mau hoho'a maitai roa i roto i te mau vahi huru rau mai te mau fenua oire, moana, e te mau mou'a.
Te faataaraa o te taata horo'a
rave'a faatietieraa | COFDM |
e mea maitai te ohipa | PHPF11V~PHPF13V |
rave i te ohipa | 0.5 Te mau āpōse: ≤0.6A PHPF12V, 1 Te mau āpōse: ≤0.8A PHPF12V, 2 Te mau āpōse: ≤1.5A PHPF12V 5 Te mau āpōse: ≤3.0A PHPF12V 10 Te mau āpōse: ≤5.0A DC12V 20 Te mau āpōse: ≤7.0A DC12V |
vauvauraa hi'opo'araa | hoho'a faatureraa RS232, 8 Tavaha haamaramaramaraa, 1 Sta'a i ni'a, Faufaa taa ê, Faito no baud: 19200 |
vauvauraa itepiri e te vai ra, | te hoê ïa faanahoraa apî no te tapa'o uira afa'u, 8 Tavaha haamaramaramaraa, 1 Tape'araa te tahi mau tauhaa, turu i te huru-ê-raa huru ê, Faufaa taa ê, Taa-ê-raa no te mahana taa ê, Faito no baud: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
te mau rave'a no te iritiraa | tauturu 128 mo'e rii a'e |
hoho'a faaite hoho'a | QPSK (4QAM), 16QAM, 64QAM |
faatitiaifaroraa i te hape i mua | 1/2 2/3 3/4 5/6 7/ 8 |
Tiai i te Ekalesia | 1/32 1/16 1/8 1/4 |
Numera a te taata a'o | 2ITE |
Te pinepineraa o te rahiraa o te rahiraa o te taime | 2 / 3 / 4 / 5 / 6 / 7 / 8M E nehenehe e faatano |
rave'a itenati transmission | 2000kbs~20000kbs |
e noaa te mana | 0.5 / 1 / 2 / 5 / 10 Te mau āpōse |
taime haponoraa | Any Frequency Customizable, Taahiraa 1M Tata'î |
e mana no te ra'i mai | i roto i te10MWil bandless hau atu i te 0.2dB |
faito tapono | te mana o te 27dB, faito tapono hau atu i te -30dB |
te piti o te haapu'eraa | ≤-45B |
MER | 32Te Mau Hau 'Āpō |
faaô i te hoho'a video | 720×480 60Ua(NTSC), 720×576 50Ua(PAL), 720 50API, 720 60API, 1080 50Ua, 1080 60Ua, 1080 24API, 1080 25API, 1080 30API, 1080 50API, e rave rahi huru raveraa e mau rave'a ti'a. |
Hoho'a i roto i te ve'a | HDMI, SDI mai te mea e hinaarohia |
hoho'a video encoding format | H.264 |
faatureraa parururaa | e mea 'ino roa te huru o te mau mea e vai ra, pato'i i te ino, hi'oraa no te mau mea hitimahuta |
-Anae-hia i te rahi | 9 x 6.4 x 2.3 tenetimetera |
Te rarahi | ≤0.20KG |
Faataaraa o te taata farii
Te mau arata'iraa o te matini tei tu'u-uira-hia i ni'a i te matini, te mau rave'a fariiraa HD | |
Te fariiraa i te taime | 170-860M Oia ïa V GUADALA&UHF |
e pinepine i te î i te reni o te reni î | 2/3/4/5/6/7/8MHz, faahepo ore |
Faito i'oa no te mau taata ta'u i roto | -94dBm~-15dBm (8M e nehenehe e haere i ni'a i te)/-98dBm ~-15dBm (2M e nehenehe e haere i ni'a i te) |
Ma te ma'i ore i roto i te mau taata ta'oti'ahia i roto i | 50 ohms |
Tûtôraa no roto i te TAI'o MAHANA | Upoo i'oa |
huru faatietieraa | COFDM |
te huru o te tai'o mahana | QPSK, 16QAM, 64QAM (faahepo ore) |
faatitiaifaroraa i te hape i mua | 1/2, 2/3, 3/4, 5 /6,7/8 (faahepo ore) |
numera niuniu | 2ite, |
mau taime paruru | 1/32, 1/16, 1/8, 1/4 (faahepo ore) |
faaî i te hoho'a video | MPEG-2MP@ML/H.264 |
faito hi'oraa | 4: 3 16: 9 |
hoho'a video o | 720 * 576 @ 8MWil 1080P @ 60P |
huru no te iritiraa i te faaroo | ia au i te hoê taata ia au i te roaraa o 300 / 200parau apî |
iritiraa no te faaroo | iritiraa 2Audio + 2Hio noatu |
e rahi o te ohipa | AC220V / DC12V <0.5E |
Te anuvera ohipa ra | – 20°C~+50°C |
Rahi o te hoho'a | 480*260*45 (1U) mau vahine horoi |
te teimaha o te tauihaa | 1.5kg (reo 2.5) |
Nota: te api tûtâîraa o te HDMI, mai te mea e hinaaro outou i te hi'oraa faufaa ore, te hoê tûtî no te tûtû video YellowBS 720p HDMI, a A tapa'o i ônei for another model.
Faataaraa:
– Ua faaohipa teie matini i te rave'a apî COFDM, tei roto ïa te mau haapa'oa (transmission), te faatietieraa roro uira, faarooraa, and video function.
– Rahi te mea e tu'ati ra, te ve'ave'a na'ina'i, e te apîraa roroa
– tu'ati i te hoê pata hoho'a na'ina'i, e nehenehe e faati'a i te hoê haruraa hoho'a HD e te transmission
– e maoro atu â te haapurororaa mai te peu e e farii oia i te antenna teitei
– A'oraa no te tau'araa parau apî: 5000m (ma te tapupu-ore-hia)/500M e te mau fifi e tapupuhia
Mau raveʻa:
– Rahi te mea e tu'ati ra, faahoho'araa o te faati'araa
– Ua faaamu i te rave'a aravihi no te faatietieraa a te COFDM, Rave'a faaohieraa roro uira no te mau hoho'a MPEG-2
– Aparauraa o Omonia
– na te haaparareraa mana'o vitiviti e faati'a i te haruharuraa faaroo e video i te taime tano mau
– Te hoê tupuraa o te ore e nehenehe e apehia
– transmission no NLOS
Parau taa:
Transmitter:
– Rahi:90x64x23mm
– teimaha:200g
– antenna:22mm
Afata apo parau
– rahi: 87x70x20mm
– teimaha:200g
– Te teitei o te taata haapa'o i te mau:42.5tenetimetera (Te mau mana'o tauturu no te tuatapaparaa e te haapiiraa)
Faataaraa i te pae no te faatereraa i te matini
– Modulation: COFDM
– e mea maitai te ohipa: PHPF11V-PHPF13V
– Rave ra i te ohipa:0.5W: iti mai i te 0.6A @ DC12V
– e faatere i te tapa'o: te tapa'o no te mau hau'arad rS232. 8-tavaha parau iti, 1-faahaehaa iti, Baud faito:19200, turu i te hi'opo'araa huru ê rii
– ua tapa'o faahororaa parau apî:8 tavaha parau iti,1 faahaehaa iti, Baud faito,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Encryption: paturu i te 128 faaîraa
– Hoho'a faaite hoho'a: QPSK (4QAM),16QAM,64TM
– Faatitiaifaroraa i te hape i mua: 1/2,2/3,3/4,5/6,7/8
– Paruru i te tau: 1/32,1/16,1/8,1/4
– Numera a te taata a'o:2ITE
– Te pinepineraa o te rahiraa o te rahiraa o te taime:2/3/4/5/6/7/8M e faatanohia
– te uta ra i te tari'a:2000Kbs-20000bs
– mana haponoraa: 2W
– taime haponoraa: e nehenehe e faatâtâîhia, taahiraa taahiraa 1Mwil
– îraa o te mana: iti mai i te 0.2ktuta i roto i te 10M tei î i te fare
– Te piti o te ha'uraa mana'o: iti mai i te -45 metera
– MER:32db
– faaô i te hoho'a video:1Vp, api,75ohm
– Materia no te faanahoraa hi'o: EI MATERIA MPEG-2
– Maitai o te video: 720×576 ia ni'a'tu i te 4M
– Faanahoraa: E nehenehe e haamau i te NTSC e te PAL
Faa'ite i te mau matini i te pae no te faatereraa i:
– Te taime e tupu nei te afata apo parau: 170-860Mhz, V PA (V, TE MAU) e te mau TA'O
– Te pinepineraa o te rahiraa o te rahiraa o te taime: 2/3/4/5/6/7/8 Mhz, adjustable
– Faito i'oa no te mau taata ta'u i roto:-94dbm-0i te matahiti 8M/98sm-0paeoo i te 2M
– Ma te ma'i ore i roto i te mau taata ta'oti'ahia i roto i: 50ohm
– Ua tapa'o au i te parau tu'ite NO Ô: SMA
– faatietieraa: COFDM
– Te e'a no te puromu: QPSK,16QAM,64QAM mai te mea e faahepohia
– Faatitiaifaroraa i te hape i mua: 1/2,2/3,3/4,5/6,7/8 faahepo ore
– Numera a te taata a'o:2ITE
– Te area no te parururaa:1/32,1/16,1/8,1/4
– Faito o te paruai:4:3,16:9
– hoho'a video:720×576 @6Mhz
– Ua tapae atu te uahu no te faaroo e no te video: faatureraa 3.5 Port
– Rave i te ohipa voltage: PHPF 12V.3A
Tei roto atoa ïa te pu'ohu:
– 1 x na roto i te mau afata u'ana
– 1 taata farii x
– 1 tuu i te tahi mau mea i roto i te x
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
Uiraa 1: Te hinaaro nei au e 30km mai te mata'i e tae atu i te repo no te UAV UGV USV.
Pahonoraa 1:Te paturu nei ta tatou faanahoraa i te reira, e ti'a i te reira ia faaohipa i te hoê 2W mea puai a'e, e mea maitai a'e ia faaohipa i te mau haapaaa (receiver) taa ê no te faahaere i te matini haruharu e piti atoa matini haruharu i ni'a a'e i te matini haruharu.
COFDM-912T VS COFDM-908T
Uiraa 2: Eaha te atearaa e roaa ia'u mai te mea e, e faaohipa vau i te matini haruharu parau e te afata apo parau i ni'a i te repo?
Pahonoraa: I ni'a i te tapo'i, e mea ti'a i te taata horo'a e te taata farii ia ite i te hoê taa-ê-raa rahi no te faatae i te atearaa.
Te atearaa roa roa ' ' e, o te 2.5 Mai te mea e, hoê â faito to te taata horo'a e te taata farii i ni'a i te repo. A hi'o na i ta matou video hi'opo'araa; no te mea ua tuuhia te taata horo'a e te taata farii i te mau faito taa ê, tei te mou'a te hoê pae, tei te pae miti te tahi pae, ua faaohipa matou i na ta'oti'araa e piti no te faatae i te 27 mau kilometera.
Uiraa 3: Te turu ra anei te reira i te hoê vahi raveraa ohipa o te -20 parau tuite?
Pahonoraa: E, Ua paturu
Uiraa 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
Pahonoraa: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
Uiraa 5:Do you have any special case shells for marine use?
Pahonoraa: E, A hi'o i te hoho'a i raro nei. (For the transmitter with a three-proof shell, aita e ti'a ia ti', faahaparaa hitimahuta, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- Taime: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- Antenna roa: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 e aore ra, 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/.
TE MAU NOTA
U. What is the video resolution?
E: HDMI 1080P.
U. Does the transmitter power current is high?
E: No te Transmitter, the different PA (mana no te faatere i te mau ohipa) i roto, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
No te Afata apo parau, the current is only 0.3E (300mA)
U: Like we only need 10km, how much PA is recommended?
E: 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 mau kilometera. 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.
U: What frequency is better? 2.4G or 5.8G?
E: 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.
U: Can customers adjust the frequency by themselves? If sometimes the frequency is occupied.
E: 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.
U:How does the customer adjust the frequency of the transmitter or receiver? Is there any software to change the frequency?
E: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.
U: Can I adjust the power amplifier on the transmitter?
E: 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.
Ei hioraa, 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, te tahi atu a.
- 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 metera.
- 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 | LOS | NLOS |
500mW | >10Km | <300m |
1W | >30Km | <500m |
5W | >60Km | <1500m |
20W | >120kilometera | <3000m |
50W | >200Km | <5000m |
100W | >250Km | <10Km |
Now COFDM-908T supports H.264, not H265.
Max support 1080 50API. 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. Ei hioraa, 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 hora.
-
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.
- E, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- E, we can build the transmission of telemetry and video in COFDM-908T.
- A tahi, 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.
E, 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
I teie nei, it does not support 1080i, nor does it support 4K transmission.
Te vai noa ra te hoê uiraa?
A farerei mai na ia matou no te tahi atu mau haamaramaramaraa.
A hapono i ta outou uiraa
20tere na ni'a i te moana HDMI aita e niuniu uira e te mau matini haruharu hoho'a no te pahi e aore râ mai te pae tahatai e tae atu i te pahi
Te mau mana'o tauturu no te haapiiraa 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
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