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 tawhiti-tawhiti COFDM HDMI Whakawhiti Pūnaha Whakawhiti Ataata Ahokore Pūnaha Whakaaetanga Katoa Tautuhi Ataata Ororongo TX RX mo te UAV Drone UGV 1080P
Āhuahira
- tino integrated, hoahoa whakakotahi modular
- Te whakamahi i te hangarau whakarereke COFDM, H.264 image coding technology
- Ka taea e ia te tuku i tetahi hongere o 1080P HDMI (SDI kōwhiringa) tohu
- Taria whakararo, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 hākonamano.
- Katoa-a tawhio kōrero, e kore wehi o hanga taiepa
- Te whakawhitiwhiti korero tere i waenga i te haerere, the maximum moving speed can reach 600 km / haora.
- Transmitter wera totohu momo konumohe take, whakaruruhau, Waterproof case is optional.
- Tautokohia te LOS me te Raina-kore-te-kitenga (NLOS) tuku pūkoro
- Kaua e iti iho te tawhiti 30 kiromita i raro i te ahua o te raina-o-tirohanga ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Te fariiraa tukutahi o nga tohu oro me te riipene whakaata, whakamāramatanga-teitei HDMI1080P takotoranga-maha he kowhiringa, kounga-whakamātautau whakaputa kounga kounga image DVD
- Ka taea e te kaiwhiwhi te mohio ki te riipene whakaata me nga mahi taapiri
- 128-moka AES whakamunatanga me te wetemunatanga
- Kei te waatea nga whakaritenga katoa
- Upgrade tool: Parameter Configure board
- Whakamahi: UAV, Nga Waka & UGV
- puoro: COFDM
- ngaohiko mahi: DC11V-DC13V
- mahi nāianei: 0.5~ 2W (i runga i nga PA rereke)
- Te mana tuku: 0.5W~20W optional
Ripanga Ihirangi
Taupānga
Ko tenei hua ka whakamahia i roto i te tirotiro hangarau me te kohinga taunakitanga o nga tari mo te haumarutanga me nga tari tirotiro haumaru, tukunga ahua-tuuturu o nga waka rererangi korekore, kaipuke tangata kore, irirangi irirangi me te pouaka whakaata, reo irirangi me te pouaka whakaata ora: mara haapurororaa, haapurororaa hākinakina, rongo pāpori, hau ora, studio, Haerenga Maunga, me etahi atu waahanga. He pai mo te whakawhiti-a-waea mo te wa-roa o nga whakaahua kounga-pai i roto i nga taiao uaua pera i nga taone nui, moana, me nga maunga.
Whakatakotoranga Kaituku
tikanga whakarite | COFDM |
ngaohiko mahi | DC11V ~ DC13V |
mahi o nāianei | 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 |
atanga whakahaere | paerewa RS232 atanga, 8 Paraire Raraunga, 1 Srunga Bit, Parite Moka, Whakatau Hoko: 19200 |
atanga raraunga maarama, | he maamaa te whakawhiti i te tauranga rangapu, 8 Paraire Raraunga, 1 Kati Moka, tautoko i te Odity Parity, Parite Moka, Koretake Ahokore, Whakatau Hoko: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
tikanga whakamunatanga | tautoko i te whakamunatanga moka-128 |
whakamahere modulation | QPSK (4QAM), 16QAM, 64QAM |
te ako hapa whakamua | 1/2 2/3 3/4 5/6 7/ 8 |
wā Guard | 1/32 1/16 1/8 1/4 |
Tau kawe | 2K |
hōkaiipurangi auautanga | 2 / 3 / 4 / 5 / 6 / 7 / 8M Ka taea te whakarite |
awa waehere whakawhiti | 2000kbs ~ 20000kbs Ka taea te whakarite |
tuku mana | 0.5 / 1 / 2 / 5 / 10 Watts |
auau tuku | Te Auautanga Ka taea te whakarite, Hipanga 1MHz |
he mana papatahi | i roto o te 10MHz korekore i te 0.2dB |
ōwehenga o te pokohiwi | te mana whakaputa o 27dB, he pai ake te tauwehenga pokohiwi i te -30dB |
te rerenga tuarua | ≤-45dB |
MORE | 32Db |
ataata whakauru | 720×480 60ahau(NTSC), 720×576 50ahau(PAL), 720 50P, 720 60P, 1080 50ahau, 1080 60ahau, 1080 24P, 1080 25P, 1080 30P, 1080 50P, he taera nga momo momo. |
Atanga HD | atanga, Kōwhiri SDI |
hōputu whakawaehere ataata | H.264 |
paerewa tiaki | chassis-momo radiator-konumohe katoa, anti-waikura, hoahoa ru-tohu |
rahi whānui | 9 x 6.4 x 2.3 cm |
Taumaha whanui | ≤0.20KG |
Whakatakotoranga Kaihoko
Miihini-whakairi-whakanoho i nga waahanga-whanui HD kaiwhiwhi tohu | |
Whiwhi i te awhe auau | 170-860MHz VHF&UHF |
hōkaiipurangi auau | 2/3/4/5/6/7/8MHz, kōwhiringa |
Taumata whakauru RF | -94dBm ~ -15dBm (8M hōkaiipurangi)/-98dBm ~ -15dBm (2M hōkaiipurangi) |
parenga ia tāuru RF | 50 ohms |
tūhono tāuru RF | N-upoko |
aratau demodulation | COFDM |
aratau whetu | QPSK, 16QAM, 64QAM (kōwhiringa) |
te ako hapa whakamua | 1/2, 2/3, 3/4, 5 /6,7/8 (kōwhiringa) |
tau kawe | 2k, |
wā kaitiaki | 1/32, 1/16, 1/8, 1/4 (kōwhiringa) |
wetewaehere ataata | MPEG-2MP@ML/H.264 |
ōwehenga ōwehenga | 4: 3 16: 9 |
whakapakoko ataata ko | 720 * 576 @ 8MHz 1080P @ 60P |
aratau whakaputa oro | tīwharawhara kore 300 / 200mv |
whakaputa oro | putanga2Audio + 2putanga ataata |
ngaohiko mahi | AC220V / DC12V <0.5He |
pāmahana Whakahaere | – 20℃ ~ + 50 ℃ |
Te rahi o te ahua | 480*260*45 (1U) chassis |
taputapu taputapu | 1.5kg (reo takirua 2.5Kg) |
tuhipoka: ko te honohono taunoa ko HDMI, mena ka hiahia koe ki te tauira iti ake, he hononga mo te CVBS honohono ataata kowhai 720p HDMI, tēnā Tirohia konei mo tetahi atu tauira.
Whakaahuatanga:
– Ka tango tenei taputapu i te hangarau COFDM, e whakauru ana i te antenna tuku, whakaurunga matihiko, ororongo, me te mahi ataata.
– Rahi kiato, wera iti, me te awhe whakawhiti roa
– hototahi ki te kāmera iti, ka taea pea te hopu whakaahua HD me te tuku
– ka roa ake te awhe tuku mena ka tangohia e ia te antenna taonga nui
– Te awhe tuku: 5000m (kahore he haukoti)/500M me nga aukatinga ka haukoti
āhuatanga:
– Rahi kiato, hoahoa whakarereke
– Ka whakatinana i te hangarau whakarereke COFDM, MPEG-2 hangarau komihana hangarau aukati
– Whakawhitiwhiti korero Omnidirectional
– te whakawhitiwhiti tere-tere ka taea ai te tuku oro me te riipene whakaata i te waa-tuuturu
– He pouaka konumohe e kore e ohorere
– Te tuku NLOS
Whakatakotoranga:
tuku:
– rahi:90x64x23mm
– taimaha:200g
– pūihi:22mm
kaiwhiwhi
– rahi: 87x70x20mm
– taimaha:200g
– Te teitei o te antena:42.5cm (ka taea te piko)
Whakatakotoranga Hangarau
– puoro: COFDM
– ngaohiko mahi: DC11V-DC13V
– mahi nāianei:0.5W: iti iho i te 0.6A @ DC12V
– tauranga whakahaere: standrad RS232 tauranga. 8-moka raraunga bit, 1-moka mutu moka, auau mokatere:19200, tautoko i te arowhai paari rerekē
– tauranga raraunga tuku:8 moka raraunga bit,1 moka mutu moka, auau mokatere,1200,2400,4800,9600,19200,38400,57600,115200,230400
– Whakamuna: tautoko 128 whakamunatanga
– puoro whakamahere: QPSK (4QAM),16QAM,64QQAM
– te ako hapa Whakamua: 1/2,2/3,3/4,5/6,7/8
– Tiakina te waahi: 1/32,1/16,1/8,1/4
– Tau kawe:2K
– hōkaiipurangi auautanga:2/3/4/5/6/7/8M te whakarite
– rerenga waka:2000kbs-20000kbs ka taea te whakarite
– mana tuku: 2W
– auau tuku: i taea te whakarite, taahiraa ko 1Mhz
– mana papatahi: iti iho i te 0.2db i roto i te10Mhz
– hawarite tuarua: iti iho i te -45db
– MORE:32db
– ataata whakauru:1Ake-p,75Ohm
– Hōputu papatono Ataata: MPEG-2
– Te kounga ataata: 720×576 ka runga ake i te 4M
– hōputu: Ka taea te whakarite NTSC me te PAL
Whakatakotoranga hangarau hangarau:
– Awhe awhe kaiwhiwhi: 170-860MHz, VHF me UHF
– hōkaiipurangi auautanga: 2/3/4/5/6/7/8 MHz, te whakarite
– Taumata whakauru RF:-94dbm-0dbm i te 8M / -98dbm-0dbm i te 2M
– parenga ia tāuru RF: 50Ohm
– Tauranga whakauru RF: High School
– whakarerekētanga: COFDM
– Te ara whetu: QPSK,16QAM,64QAM he kowhiringa
– te ako hapa Whakamua: 1/2,2/3,3/4,5/6,7/8 kōwhiringa
– Tau kawe:2K
– Āputa tiaki:1/32,1/16,1/8,1/4
– Reiti Mata:4:3,16:9
– whakapakoko ataata:720×576 @ 6Mhz
– Ororongo me te tauranga whakaputa ataata: paerewa 3.5 tauranga
– ngaohiko mahi: DC12V 0.3A
Kei roto kohinga:
– 1 x kaiwhakawhiti
– 1 x kaiwhiwhi
– 1 set x taonga whakapaipai
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
pātai 1: Me 30km te iti rawa mai i te rangi ki te whenua mo te UAV UGV USV.
Whakautu 1:Ka tautokohia e ta maatau punaha, kia whakamahia te reira i te 2W mana whakanui, he pai ake te whakamahi i nga antenna tuku roa motuhake me nga antenna kaikawe teitei e rua.
COFDM-912T VS COFDM-908T
pātai 2: Kia pehea te tawhiti ka taea e au mena ka whakamahi ahau i te kaiwhakawhiti me te kaiwhiwhi i runga i te whenua?
Whakautu: I runga i te whakamahi whenua, me whai rereke te teitei o te kaiwhakawhiti me te kaikawe hei tuku i nga tawhiti tawhiti.
Ko te tawhiti roa anake 2.5 kiromita mena he rite te teitei o te kaiwhakawhiti me te kaikawe i runga i te whenua. Tena tirohia ta maatau ataata whakamatautau; na te mea ka whakanohohia te kaiwhakawhiti me te kaiwhiwhi ki nga taumata rereke, ko tetahi taha kei te maunga, ko tetahi taha kei te taha moana, i whakamahia e matou te taunoa e rua Watts ki te tuku 27 kiromita.
pātai 3: E tautoko ana i te taiao mahi o -20 nekehanga?
Whakautu: Ae, tautokona
pātai 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
Whakautu: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
pātai 5:Do you have any special case shells for marine use?
Whakautu: Ae, Tena koa tirohia te pikitia i raro nei. (For the transmitter with a three-proof shell, parewai, whakaruruhau, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- auautanga: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- roa pūhihi: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 ranei 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
Q. What is the video resolution?
He: atanga 1080p.
Q. Does the transmitter power current is high?
He: No te tuku, the different PA (whakakaha kaha) roto, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
No te kaiwhiwhi, the current is only 0.3He (300mA)
Q: Like we only need 10km, how much PA is recommended?
He: 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 kiromita. 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?
He: 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.
He: 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?
He: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?
He: 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.
Hei tauira, 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 mita.
- 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 | TE | 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. Hei tauira, 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 haora.
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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.
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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.
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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.
- Ae, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ae, we can build the transmission of telemetry and video in COFDM-908T.
- Tuatahi, 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. Ko nga kohao 20W me 10W he ao, kia taea ai te whakamahi ki a raua ano. Mo te tuku tere, karekau tenei ahua i whakarereke me te whakamahi tika.
- Kei tenei hua 20 Watts. I whakamahia e matou nga taputapu motuhake hei whakamatautau i mua i te tuku. Tirohia koa te ataata i raro nei. (Kei te whakaatu te taputapu 3.04dBm me te attenuator pango 40dBm he rite ki te 43.04dBm)
- Whakamatau ataata i youtube: https://www.youtube.com/shorts/jfNoZeb1BIA
- Anei etahi hononga i waenga i te mana whakaputa me nga tawhā dBm e whakaatuhia ana e te taputapu.
- 20Ko te mW te 13dBm
200Ko te mW te 23dBm
1 Watts he 30dBm
2 Ko te Watts he 33dBm
5 Ko te Watts he 37dBm
10 Ko te Watts he 40dBm
20 Ko te Watts he 43dBm
50 Ko te Watts he 47dBm
100 Ko te Watts he 50dBm
E wha noa te whakaurunga Ataata HDMI me tetahi pouaka whakaputa HDMI
Mena he ngawari noa te hono o nga ataata kamera e wha ki te ataata kotahi, Ka taea e koe te taapiri i tetahi pouaka me nga whakauru HDMI e wha me tetahi putanga HDMI kei mua i te tuku. Ko te tikanga ko te kaitirotiro i runga i te kaiwhiwhi ka whakaatu tonu i ia ataata i runga i te hauwhā o te mata.
Ae, ka tautokohia e ta maatau antenna rua te kaiwhiwhi whakauru RF i te rereketanga. Ka taea e koe te whakamahi i nga antenna arataki yagi e rua i runga i ta maatau kaikawe ataata ahokore cofdm.
Kia pai ake te tango tohu, e taunaki ana kia kotahi te antenna arataki Yagi me tetahi antenna arataki katoa ki runga i te kaikawe..
Ka taea te whakamahi e nga kaitango whakaahua. Kei te tautoko i te 1080@60P, 1080Whakatauiratanga, 1080Whakatauiratanga
I tēnei wā, kaore i te tautoko i te 1080i, e kore hoki e tautoko i te tuku 4K.
20kiromita i runga i te moana HDMI kaikawe ataata ahokore me te whakamatautau mo te poti mai i uta ki tetahi kaipuke
Awhe-roa 20 Ko te Watts Power Amplifier Transmitter me te Kaiwhiwhi e hiahia ana ki te tuku hiko 12V 6A
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