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 ogologo COFDM HDMI Onye na-ebufe sistemu vidiyo ikuku ikuku na-anata ihe onyonyo TX RX zuru oke maka UAV Drone UGV 1080P
Njirimara
- ukwuu ike, modular jikọtara imewe
- Iji teknụzụ mmezi nke COFDM, H.264 image coding technology
- Ọ nwere ike ibunye otu ọwa nke 1080P HDMI (nhọrọ SDI) mgbaàmà
- Obere oge, the minimum end-to-end delay is 200~250 milliseconds, We also have a super-lower latency model of less than 30-50 milliseconds.
- All-gburugburu nkwurịta okwu, bụghị egwu nke-ewu mgbidi
- Nkwurịta okwu ọsọ ọsọ n'etiti njem, the maximum moving speed can reach 600 km / hour.
- Transmitter okpomọkụ sink ụdị aluminum ikpe, ihe na-akpata ujo, Waterproof case is optional.
- Na-akwado LOS na ndị na-adịghị ahụ anya (NLOS) nnyefe ekwentị
- Ebe dị anya adịghị ala karịa 30 kilomita n'okpuru ọnọdụ nke ahịrị-nke-ihu ( Power amplifier and distance: 2 Watts PA 30km, 5 Watts PA 60KM, 10 Watts PA 100km, 20 Watts 150km at LOS)
- Synchronous n'ikuku nke ọdịyo na video n'ókè, elu-definition HDMI1080P multi-format nhọrọ, ọkọlọtọ-definition mmepụta DVD oyiyi mma
- Onye nata nwere ike ịghọta ndekọ vidiyo na ọrụ nchekwa
- 128-bit AES izo ya ezo na decryption
- Nhazi zuru ezu di
- Upgrade tool: Parameter Configure board
- Iji: UAV, Ugbo ala & UGV
- Mgbanwe ụda olu: COFDM
- na-arụ ọrụ voltaji: DC11V-DC13V
- arụ ọrụ ugbu a: 0.5~ 2W (dabere na PA dị iche iche)
- nnyefe ike: 0.5W~20W optional
Tebulu ọdịnaya
ngwa
A na-ejikarị ngwaahịa a eme ihe nyocha na nchịkọta ihe akaebe nke ngalaba nyocha ọha na nchekwa na nchekwa, nnyefe ihe onyonyo ozugbo nke ugbo ala ikuku, ụgbọ mmiri ndị na-enweghị ụgbọ mmiri, redio na telivishọn agba anọ, mgbasa ozi na redio na telivishọn: ubi agbasa ozi, sports agbasa ozi n'ikuku, na-elekọta mmadụ ozi ọma, ikuku ndụ, studio, ngagharị ugwu, na akụkụ ndị ọzọ. O adabara maka ezigbo oge nnyefe nke onyonyo dị elu na gburugburu ebe dị mgbagwoju anya dịka ime obodo, oké osimiri, na ugwu.
Nkọwapụta Transmit
usoro mgbanwe | COFDM |
arụ ọrụ voltaji | DC11V ~ DC13V |
na-arụ ọrụ ugbu a | 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 |
njikwa njikwa | ọkọlọtọ RS232 interface, 8 Ihe data, 1 Stop Bit, Parity Bit, Baud Rate: 19200 |
uzo data interface, | a otu ụzọ uzo serial n'ọdụ ụgbọ mmiri nnyefe, 8 Ihe data, 1 Kwụsị Bit, kwado Odd Parity, Parity Bit, Ikuku Parity, Baud Rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
ụzọ izo ya ezo | akwado 128-bit izo ya ezo |
mgbanwe olu | QPSK (4QAM), 16QAM, 64QAM |
na-atụ njehie mgbazi | 1/2 2/3 3/4 5/6 7/ 8 |
nche nkeji | 1/32 1/16 1/8 1/4 |
Nọmba ụgbọelu | 2K |
Frequency bandwit | 2 / 3 / 4 / 5 / 6 / 7 / 8M Mgbanwe |
nnyefe koodu iyi | 2000kbs ~ 20000kbs Kemeghi |
ebunye ike | 0.5 / 1 / 2 / 5 / 10 Watts |
nnyefe ugboro | Any Frequency Customizable, Kwụpụ 1MHz |
a ike flatness | n'ime10MHz bandless karịa 0.2dB |
ruru nke ubu | ike mmepụta nke 27dB, ubu ruru mma karịa -30dB |
nke abụọ harmonic | -45dB |
ỌZỌ | 32Db |
video ntinye | 720×480 60m(NTSC), 720×576 50m(PAL), 720 50P, 720 60P, 1080 50m, 1080 60m, 1080 24P, 1080 25P, 1080 30P, 1080 50P, ụdịdị dị iche iche na-agbanwe agbanwe. |
HD Interface | HDMI, SDI nhọrọ |
video ngbanwe usoro | H.264 |
ụkpụrụ nchedo | all-aluminum radiator-ụdị chassis, mgbochi-corrosion, ujo-àmà imewe |
n'ozuzu size | 9 x 6.4 x 2.3 cm |
Mkpokọta ibu | ≤0.20KG |
Erite nkọwapụta
Ngwa igwe eji etinye ọnụ igwe bandwidth HD nnata | |
Anata ugboro ole iche | 170-860MHz VHF&UHF |
bandwidth ugboro ugboro | 2/3/4/5/6/7/8MHz, nhọrọ |
Ntinye ntinye RF | -94dBm ~ -15dBm (8M bandwit)/-98dBm ~ -15dBm (2M bandwit) |
RF input impedance | 50 ohms |
RF input njikọ | N-isi |
ọnọdụ ngosi | COFDM |
akara kpakpando | QPSK, 16QAM, 64QAM (nhọrọ) |
na-atụ njehie mgbazi | 1/2, 2/3, 3/4, 5 /6,7/8 (nhọrọ) |
nọmba ụgbọelu | 2k, |
nche nkeji | 1/32, 1/16, 1/8, 1/4 (nhọrọ) |
ntinye vidiyo | MPEG-2MP@ML/H.264 |
akụkụ ruru | 4: 3 16: 9 |
video oyiyi bụ | 720 * 576 @ 8MHz 1080P @ 60P |
ụdị mmepụta ọdịyo | stereo edozi 300 / 200mv |
mmepụta audio | mputa2Audio + 2video mmepụta |
na-arụ ọrụ voltaji | AK220V / DC12V <0.5A |
operating okpomọkụ | – 20℃ ~ + 50 ℃ |
Ọdịdị nha | 480*260*45 (1U) Chassis |
akụrụngwa ibu | 1.5kg (asụsụ ụzọ abụọ 2.5Kg) |
Note: ndabara njikọ bụ HDMI, ọ bụrụ na ịchọrọ ụdị dị ọnụ ala, a njikọ maka CVBS Yellow video njikọ 720p HDMI, Biko Lelee ebe a maka ihe nlereanya ọzọ.
Description:
– Ngwaọrụ a na - anabata teknụzụ COFDM, nke jikọtara antenna nnyefe, mgbanwe olu, audio, na ọrụ vidiyo.
– Kọmpat size, obere okpomọkụ, na nnyefe ogologo
– dakọtara na obere igwefoto, nwere ike ime ka HD oyiyi nnweta na nnyefe
– oke nnyefe ga-adị ogologo ma ọ bụrụ na ọ na-anabata antenna elu uru
– Nnyefe nso: 5000m (na-enweghị nkwụsị ọ bụla)/500M na ihe mgbochi ịkwụsịtụ
atụmatụ:
– Kọmpat size, Mgbanwe ụda olu
– Na-akwado usoro teknụzụ COFDM, MPEG-2 oyiyi com mkpakọ technology
– Omnidirectional nkwurịta okwu
– nkwukọrịta ọsọ ọsọ na-enyere ezigbo oge ọdịyo na nnyefe vidiyo
– Ihe mkpuchi aluminom nke na-adịghị atụ egwu
– NLOS nnyefe
nkọwa:
transmitter:
– size:90x64x23mm
– ibu:200g
– poolu:22mm
erite
– size: 87x70x20mm
– ibu:200g
– Poolu elu:42.5cm (enwere ike gbagọ)
Nka na ụzụ nkọwapụta
– Mgbanwe ụda olu: COFDM
– arụ ọrụ voltaji: DC11V-DC13V
– arụ ọrụ ugbu a:0.5W: erughị 0.6A @ DC12V
– njikwa n'ọdụ ụgbọ mmiri: standrad RS232 n'ọdụ ụgbọ mmiri. 8-bit data ibe n'ibe, 1-bit kwụsịtụ, Baud ọnụego:19200, kwado odighi otu
– nnyefe data n'ọdụ ụgbọ mmiri:8 bit data ibe n'ibe,1 bit kwụsịtụ, Baud ọnụego,1200,2400,4800,9600,19200,38400,57600,115200,230400
– na izo ya ezo: support 128 izo ya ezo
– Mgbanwe ụda olu nkewa: QPSK (4QAM),16QAM,64AJQ
– Forward njehie mgbazi: 1/2,2/3,3/4,5/6,7/8
– Chebe oge: 1/32,1/16,1/8,1/4
– Nọmba ụgbọelu:2K
– Frequency bandwit:2/3/4/5/6/7/8M mgbanwe
– mbufe mmiri:2000kbs-20000kbs mgbanwe
– nnyefe ike: 2W
– nnyefe ugboro: nwere ike ahaziri, nzọụkwụ bụ 1Mhz
– ike flatness: erughị 0.2db n'ime10Mhz
– Nke abụọ harmonic: erughị -45db
– ỌZỌ:32dB
– video ntinye:1VP-p,75ohm
– Programdị mmemme vidiyo: MPEG-2
– Ogo vidiyo: 720×576 mgbe n'elu 4M
– format: NTSC na PAL nwere ike ịtọ
Onye natara teknụzụ nkọwapụta:
– Ego ugboro ole na-anata: 170-860MHz, VHF na UHF
– Frequency bandwit: 2/3/4/5/6/7/8 MHz, kemeghi
– Ntinye ntinye RF:-94dbm-0dbm na 8M / -98dbm-0dbm na 2M
– RF input impedance: 50ohm
– Oghere ntinye RF: High School
– mgbanwe olu: COFDM
– Kpakpando uzo: QPSK,16QAM,64QAM nhọrọ
– Forward njehie mgbazi: 1/2,2/3,3/4,5/6,7/8 nhọrọ
– Nọmba ụgbọelu:2K
– Oghere nchebe:1/32,1/16,1/8,1/4
– Ọnụego ihuenyo:4:3,16:9
– video oyiyi:720×576 @ 6Mhz
– Ọdụ na mmepụta vidiyo: ọkọlọtọ 3.5 ọdụ ụgbọ mmiri
– na-arụ ọrụ voltaji: DC12V 0.3A
Ngwunye gụnyere:
– 1 x transmitter
– 1 x erite
– 1 set x ngwa
30Km long distance COFDM HDMI Wireless Video Transmitter
FAQ
ajụjụ 1: Achọrọ m opekata mpe kilomita 30 site na ikuku ruo n'ala maka UAV UGV USV.
Azịza 1:Usoro anyị na-akwado ya, o kwesiri iji 2W ike ampilifaya, ọ ka mma iji eriri nnyefe ogologo pụrụ iche yana eriri nnata abụọ dị elu.
COFDM-912T VS COFDM-908T
ajụjụ 2: Kedu ka m ga-esi nweta ma ọ bụrụ na m na-eji transmitter na nnata ma na ala?
Azịza: Na ala ojiji, onye na-ebufe na onye na-anata ga-enwerịrị ọdịiche dị elu ka ọ na-ebufe ogologo oge.
Ogologo kacha ogologo bụ naanị 2.5 kilomita ma ọ bụrụ na onye na-ebufe na onye na-anata bụ ma n'otu ịdị elu n'ala. Biko hụ vidiyo nnwale anyị; n'ihi na a na-etinye transmitter na onye na-anata n'ọkwa dị iche iche, otu akụkụ dị n'ugwu ahụ, akụkụ ọzọ dị n'akụkụ oké osimiri, anyị na-eji ndabara abụọ watts bufee 27 kilomita.
ajụjụ 3: Ọ na-akwado ebe ọrụ nke -20 degrees?
Azịza: Ee, akwado
ajụjụ 4: I want to buy modules and built-in my devices, please tell me the dimension of that modules.
Azịza: SD model: 6X7X1.6cm, HD model: 5X7X1.6cm
ajụjụ 5:Do you have any special case shells for marine use?
Azịza: Ee, Biko lelee anya n'okpuru. (For the transmitter with a three-proof shell, mgbochi mmiri, ihe na-akpata ujo, anti-salt spray, 防水,防震,防盐雾)
Precautions for order customization
- Frequency: Please tell me what frequency you need as the default center frequency. Please choose from 170-860Mhz.
- poolu ogologo: Please tell us the length you want for the 1-piece transmitter and 2-piece receiver antenna. (receiver antenna length has 0.8 ma ọ bụ 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/.
Ajụjụ
Q. What is the video resolution?
A: HDMI 1080P.
Q. Does the transmitter power current is high?
A: Maka transmitter, the different PA (ike ampilifaya) n'ime, the current is different. 20W 6-7A, 10W 5A, 5W 3A, 1-2W 1.6A
Maka erite, 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 kilomita. 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.
Ọmụmaatụ, 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 | IHE | 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. Ọmụmaatụ, 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 awa.
-
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.
- Ee, the wireless video signal reception is improved by using Yagi and omni-directional antennas.
- Ee, we can build the transmission of telemetry and video in COFDM-908T.
- Mbụ, 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
- Nke a bụ ụfọdụ mkpụrụedemede n'etiti ike mmepụta yana paramita dBm nke ngwa ahụ gosipụtara.
- 20mW bụ 13dBm
200mW bụ 23dBm
1 Watts bụ 30dBm
2 Watts bụ 33dBm
5 Watts bụ 37dBm
10 Watts bụ 40dBm
20 Watts bụ 43dBm
50 Watts bụ 47dBm
100 Watts bụ 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.
Ee, 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, 1080Ndozi nha Nzọụkwụ, 1080Ndozi nha Nzọụkwụ
Ugbu, it does not support 1080i, nor does it support 4K transmission.
20km n'elu oké osimiri HDMI ikuku vidiyo na-ebufe na ule nnabata maka ụgbọ mmiri ma ọ bụ site n'ikpere mmiri gaa n'ụgbọ mmiri
Long-range 20 Watts Power Amplifier Transmitter and Receiver needs a 12V 6A power supply
Nyocha
E nweghị ndị na reviews ma.