COFDM video transmitter-receiver FAQ
COFDM video transmitter receiver AV in HDMI out FPV, Wireless 10km-15km-30km long-range cheaper and longer
Werrej
One-Way Video Data Downlink Recommended Model
Punti ta 'Biegħ / Karatteristiċi / vantaġġ
AES 128 Encryption tal-vidjo
Funzjoni qawwija ta 'kriptaġġ tal-vidjo biex tiżgura s-sigurtà tal-vidjo.
Distanza Itwal
2 Watts Amplifikatur tal-Enerġija, appoġġ distanza ta 'trasmissjoni 30KM
Frekwenza Modifikabbli
Il-frekwenza tat-trażmissjoni hija modifikabbli mill-bord tal-konfigurazzjoni tal-parametri.
Qawwa tas-Sinjal
L-iskrin tar-riċevitur jista 'juri s-saħħa tas-sinjal tat-trasmettitur, l-utenti jistgħu jimxu post ta 'akkoljenza aħjar.
video + Dejta
Ħlief vidjo, jappoġġja wkoll id-dejta tat-tniżżil permezz tal-UART mit-trasmettitur għar-riċevitur. One-way, Simplex.
Lower Latency
The lower latency delay is less than 200~300 millisecond.
LOS u NLOS
Appoġġ LOS (Linja-Tal-vista) 30km u NLOS (Mhux-Linja tal-Vista) 1.5km test Video
Sett sħiħ fil-pakkett
Il-pakkett huwa inkluż trasmettitur, riċevitur, kemm l-antenna tal-ġenb kif ukoll l-aċċessorji tal-kejbil.
Punti bejgħ
appoġġ encryption
Powerful PA RF output (1 Watts jew 2 Watts)
720P composite CVBS AV in on the transmitter, TA + HDMI output on the receiver
appoġġ NLOs IL long-range transmission
fakultattiv parameter configures board for current parameter showing and adjustable
Recommended to use the fiberglass antenna to support strong signal and long-range
H.264/MPEG-2 encoder
Delay latency <300 millisekonda;
What is the COFDM Video Transmitter?
- COFDM-912T jadotta COFDM avvanzat (teknoloġija tal-modulazzjoni multi-carrier), liema tintegra l-antenna tat-trasmissjoni, modulazzjoni diġitali, u awdjo u kompressjoni diġitali tal-vidjo.
- COFDM wireless video transmitter has a small size and a long transmission distance. Modular combined design can be used with secret shooting clothes and small cameras and can realize hidden on-site high-definition image collection and transmission.
- COFDM wireless video transmitter is a highly integrated mobile non-line-of-sight digital mobile video wireless image transmission equipment that can transmit real-time and stable audio and video in high-speed movement and under the condition of urban buildings.
- The COFDM Wireless Video transmitter-receiver transmission system can reach a transmission distance of more than 500 metru u linja tal-vista ta 'aktar minn 10 kilometri taħt kondizzjonijiet ġenerali ta 'mblukkar.
- COFDM Wireless video transmitters using high-gain directional antennas or omnidirectional antennas can further increase the transmission distance.
- Jekk għandek bżonn distanza itwal ta 'trasmissjoni, tista 'tuża n-netwerk bil-fili eżistenti, komunikazzjoni mobbli (satellita), u uża t-tagħmir tat-trasmissjoni tar-relay li jista 'jinġarr tal-kumpanija tagħna jew sistema ta' trasmissjoni tal-vidjow mingħajr fili mmuntata fuq il-vettura għat-trasmissjoni tar-relay. The transmission distance of the system can reach more than 20 kilometri.
- Hemm 3 setgħat differenti għat-tagħmir tat-tip sparatura sigrieta (0.5W, 1W and 2W@ qawwa medja PA). Iktar ma tkun kbira l-qawwa, iktar ma tkun b'saħħitha l-penetrazzjoni tas-sinjal u iktar ma tkun twila d-distanza tat-trasmissjoni.
- distanza Trażmissjoni: visual environment ≥ 10km. Ambjent li jimblokka: ≥500m (differenti skont l-ambjent)
(if you need long-range, we also have 5W, 10W, 20W PA products, ara hawn)
karatteristika
- integrati ħafna, disinn modulari
- Adotta teknoloġija ta 'modulazzjoni COFDM, MPEG-2 immaġni teknoloġija kompressjoni
- Kollha tond komunikazzjoni, ma jibżgħux ta 'ħitan bini
- Ta 'veloċità għolja inter-komunikazzjoni line, ħin reali, stabbli immaġni DVD kwalità għall-trasmissjoni tal-video / awdjo
- Saħħan aluminju sink djar, shockproof u reżistenti għad-daqqiet
- High-fidelity digital stereo transmission
- -Nuqqas ta 'linja tal-vista (NLOs) trasmissjoni mobbli għal distanzi itwal
applikazzjonijiet
Dan il-prodott huwa prinċipalment użat għall tkixxif tekniku u l-forensika fil-militari u ta 'sigurtà dipartimenti ta' spezzjoni. Radju u xandir tat-televiżjoni, radju u televiżjoni mxandra live: qasam tax-xandir, isports tax-xandir, aħbarijiet soċjali, ajru ħajjin, istudjo, avventura fil-muntanji, u l-bqija. Hu adattat għal-ħin reali trasmissjoni mobbli ta 'immaġini ta' kwalità għolja fl-ambjenti kumplessi ħafna bħal urbana, marine, and mountainous.
Għad-drones ( jirrakkomanda li żżid filtri tal-mewġ żejda, bżonn spiża żejda )
għal CCTV
speċifikazzjoni
Vultaġġ operattiva: DC11V ~ DC13V (20W PA needs 24~28V)
riċevitur:
FAQs
- Iva, the frequency range can be changed from 170Mhz (aħjar from 220Mhz) to 860Mhz. So it can work well at 260Mhz band.
- Il-frekwenza għandha tiġi modifikata għall-istess fuq it-trasmettitur u r-riċevitur. Tal-kawża, l-Amplifikatur tal-Enerġija u l-frekwenza tal-antenna għandhom jimmodifikaw l-istess frekwenza. (You need to buy a power amplifier and antenna for the transmitter and receiver to meet your changed frequency).
- In order to improve the sensitivity of transmitting and receiving, the frequency bandwidth is generally made very narrow (frekwenza taċ-ċentru ±15Mhz, so bandwidth should be 30Mhz). The power amplifier of the transmitter and the frequency of the antenna are specially customized according to the frequency you need.
- It is best when you place an order, please tell me what kind of working frequency you need. Our engineers will modify the frequency of the transmitter and receiver, and also modify the PA and custom antenna according to this frequency range to ensure the best sensitivity and support the longest transmission distance.
- Il-frekwenza default hija 590Mhz, Bi 30Mhz (+/-15Mhz), tista' tibdelha mingħajr ma timmodifika l-Power Amplifier u l-antenna. Pereżempju, 578Mhz, 584Mhz, 590Mhz, 596Mhz, and 602Mhz.
- If you need to modify the transmitter frequency and bandwidth, you need a special tool of the parameter configure board, please see the below picture, it is not a default accessory, please buy it at an extra cost or contact us before ordering.
Iva, jappoġġja biex tibgħat il-vidjo u d-data UART mit-trasmettitur u r-riċevitur.
Peress li hija trasmissjoni one-way, għalhekk ma tistax tibgħat il-kmand tal-kontroll mir-riċevitur għat-trasmettitur.
If you need to send control commands or other data from the receiver to control other devices such as cameras or drones at the transmitter, you can add a set of cheap digital transmission equipment, Ikkuntatjana, and we can customize it for you.
Jekk jogħġbok iċċekkja d-definizzjoni UART fuq it-trasmettitur u r-riċevitur fil-link hawn taħt. Jekk jogħġbok għidli jekk tridx ikollok kejbil taċ-ċomb. (default hija le)
It-trasmettitur default Power Amplifier huwa 2 Watts, sabiex ikun jista 'jappoġġja 30 KM fil-linja tal-vista.
L-istampa hawn taħt hija d-distanza ttestjata tagħna mill-muntanji sal-baħar.
If you want to transmit a longer range, you can increase the power amplifier. In addition to one watt and two watts, we can also make 5 watts, 10 watts, u 20 watts for your choice. Larger amplifiers also require larger batteries and current support.
For 20W PA, the power supply should be 24~28V. Only at 28 volts can the power amplifier achieve the best workability.
Our engineer can change the frequency to 300Mhz from the default 590Mhz, The antenna, and PA in the warehouse are 590Mhz, 300Mhz needs two weeks to customize, so the delivery time needs longer than our default 590Mhz.
Pass 1: Jekk jogħġbok agħfas OK u l-buttuna t-tajba fl-istess ħin, tidher fuq l-iskrin menu dwar jekk għandux jiġi ffrankat.
Pass 2: Jekk jogħġbok agħfas OK biex tagħżel Iva biex tiffranka.
Remind, please use the bigger or longer antenna if your project allows, it can get better reception performance in the larger range.
The default full set
- SD Transmitter ( PA 0.5W, 1W, 2W, 5W, 10W, 20W, 50W optional according to your order demand)
- SD Transmitter antenna
- HDMI CVBS output receiver with parameter control menu and small screen
- 0.8-meter Receiver antenna 1 pcs. (There are two types of installing or fixing the antenna: 1. magnetic sucker base antenna, 2. default U-type clamp FRP fiberglass antenna )
- fakultattiv, parameter configuration board for the wireless video transmitter.
(If you need a magnetic sucker base antenna, the express or carrier thinks the magnetic products will interfere with their plane safety, so the shipping cost is higher than a U-type clamp antenna. )
The default full set package dimension
- 84*21*12CM
- Gross Weight 4.5KG
- If you choose over 100cm antenna and magnetic sucker base antenna, Some freight forwarders will charge extra fees, such as extra long fees and extra fees for strong magnetic items.
- The transmitter parameter configures board is different from the one on the receiver. The firmware on the parameter configure board was different from the transmitter and receiver, they cannot be used interchangeably.
- The transmitter parameter configures board can adjust the signal attenuation on the transmitter. Per 0.3db will reduce the 0.5W PA.
mistoqsija: Is it possible to change the outpout power (internal PA 0,5 w, 1 w, 2 w) via the configuration board?
- As answered above, you can adjust the output power by setting the parameters of ATTEN through the parameter configuration board tool on the transmitter. (This tool does not include the default package, you need to notify that you want to have this tool when you order)
- If you buy 2W PA, then you can set it 0.5W, 1W, but can not change it to 5W.
- We also can make it to 5W, 10W, 20W, and 50W if you need to support long-range.
Nru.
This wireless video transmitter only supports CVBS camera or video input, other type of video camera needs an extra converter box.
Nru. It is COFDM (DVB-T) teknoloġija.
So the COFDM frequency range is 170-860Mhz. It can support 477, 610, 675, 724, 816Mhz, but can not support 970, 1180, 1230 Mhz.
Our special model transmitter can support all the above ranges, but the receiver needs to use the downconverter block.
In order to allow our wireless transmitting system to support a wider range and better signal strength, we generally set the operating frequency to a certain point (170~860Mhz), and its supported range is only plus or minus 15Mhz. Pereżempju, the center frequency is 590Mhz, max support frequency range should be 575Mhz~605Mhz, The PA and antenna are specially customized according to this center frequency.
Għad għandi mistoqsija?
Jekk jogħġbok ikkuntattjana għal aktar informazzjoni.
Ibgħat il-Mistoqsija Tiegħekgallerija
twissija
- Peress li dan it-trasmettitur għandu 1W jew 2W PA inkorporat ġewwa, jekk jogħġbok qabbad l-antenna tat-trasmettitur l-ewwel imbagħad agħtiha l-qawwa biex tipproteġi t-trasmettitur PA Power Amplifier.
- Sabiex tiġi żgurata l-istabbiltà tas-sinjali li jibgħat u li jirċievi tat-trażmissjoni tal-immaġni u t-trażmissjoni bla xkiel tal-istampa, jekk jogħġbok timblokkax l-antenna kemm jista 'jkun, u pprova poġġih f'post għoli, bħal fuq is-saqaf jew fuq tripod.
- Jekk jogħġbok żomm l-antenna vertikali.
- Jekk jogħġbok kun żgur li hemm ċerta differenza ta 'għoli bejn l-antenna li tittrasmetti u l-antenna li tirċievi.
Test Real fil-Belt NLOS (mhux linja tal-vista) jappoġġja 1.5km, Trasmettitur fil-bini, trasmettitur fil-moviment għall-UGV (vettura tal-art bla ekwipaġġ)
COFDM Trasmissjoni tar-riċevitur tat-trasmettitur tal-vidjo mingħajr fili b'bord ta 'sett ta' parametru ta 'konfigurazzjoni li jista' jitneħħa
Test Real fil-Belt NLOS, Trasmettitur fil-bini, u riċevitur bil-kamera fil-karozza li tiċċaqlaq, ambjent kumpless.
1.5km għall-art NLOS, 10-20-30km LOS arja għall-art trażmissjoni tar-riċevitur trasmettitur tal-vidjo mingħajr fili
Trasmettitur tal-vidjow mingħajr fili irħis u skrin żgħir tar-riċevitur għandu għajnuna kbira fuq il-illokkjar tas-saħħa tas-sinjal
Test PAL and NTSC CVBS composite camera for FPV wireless video transmitter and receiver VTX
Manwal għall-Utenti
720p relatati mat-trasmissjoni keywords
video link | cofdm trasmettitur video | Trasmettitur tal-vidjo tal-lift mingħajr fili |
cofdm vidjo trasmettitur wireless | HDMI għall-modulatur cofdm | trasmettitur-riċevitur tal-vidjo fuq medda twila |
-Medda twila video wireless riċevitur trasmettitur | cofdm vidjo trasmettitur wireless | HD-SDI video trasmettitur |
fibra riċevitur ottika trasmettitur awdjo vidjo | manpack cofdm trasmettitur-riċevitur tal-vidjo mobbli mingħajr fili | trasmettitur tal-vidjo tal-qawwa fuq koassjali għal |
wireless video trasmettitur ma 'konnettur BNC | wireless video trasmettitur | -Medda twila video wireless riċevitur trasmettitur |
trasmettitur video | trasmettitur tal-vidjo gsm | Trasmettitur ta 'vidjo awdjo mingħajr fili fuq firxa twila |
wireless video trasmettitur | trasmettitur NLOs Video | trasmettitur vidjo u dijagramma taċ-ċirkwit riċevitur |
HD-SDI video trasmettitur | 3g vidjo trasmettitur | barra wireless video trasmettitur u riċevitur |
riċevitur tat-trasmettitur tal-vidjo mingħajr fili fuq distanza twila għal kamera CCTV | Trasmettitur tal-vidjo awdjo | 5.8trasmettitur tal-vidjo ghz |
trasmettitur vidjo u dijagramma taċ-ċirkwit riċevitur | Trasmettitur tal-vidjow wifi | sistema trasmettitur-riċevitur tal-vidjo tal-awdjo bla fili |
-Medda twila video wireless 800mhz 100km trasmettitur | Ċippa tat-trasmettitur tal-vidjo | 3-trasmettitur u riċevitur tal-vidjo watt |
-Medda twila transmitter wireless video | vidjo trasmettitur Analog | 2 4trasmettitur u riċevitur tal-vidjo |
kamkorder trasmettitur video mingħajr fili | Modulu tat-trasmettitur tal-vidjo | Trasmettitur tal-vidjo awdjo bla fili għall-iPad |
enerġija linja trasmettitur video | HD video trasmettitur | Trasmettitur tal-vidjo bla fili UHF VHF HDMI |
4g vidjo trasmettitur | GoPro vidjo trasmettitur | Trasmettitur tal-vidjo mikro USB bla fili |
riċevitur trasmettitur wireless video | Trasmettitur tal-vidjo FPV | wireless video trasmettitur ma 'konnettur BNC |
vidjo trasmettitur Analog | Trasmettitur tal-vidjo mingħajr fili | 5.8 Trasmettitur tal-vidjo GHz |
vidjo diġitali trasmettitur FPV | Trasmettitur tal-vidjo fl-arja | fibra riċevitur ottika trasmettitur awdjo vidjo |
barra wireless video trasmettitur u riċevitur | trasmettitur tal-vidjo microwave | 2.4 Trasmettitur tal-vidjo GHz |
wireless video modulu riċevitur trasmettitur | trasmettitur-riċevitur tal-vidjo | Trasmettitur u riċevitur tal-vidjo bla fili infra-aħmar |
trasmettitur tal-vidjo li jaħdem bil-batterija | 4g vidjo trasmettitur | Trasmettitur u riċevitur awdjo mingħajr fili RCA |
video trasmettitur wireless camera | Trasmettitur cofdm FPV | 70 km trasmettitur tal-vidjo mingħajr fili fuq medda twila |
HD video trasmettitur | Trasmettitur tal-vidjo mobbli | trasmettitur tal-vidjo mingħajr fili għal iPhone iPad iPod |
GoPro vidjo trasmettitur | Trasmettitur tal-vidjow bil-lejżer | trasmettitur u riċevitur tal-vidjo awdjo fuq medda twila |
HDMI vidjo trasmettitur | xandir ta 'trasmettitur tal-vidjo | Trasmettitur u riċevitur tal-vidjow fuq cat5 |
SDI trasmettitur tal-vidjo bla fili SSDI | Trasmettitur tal-vidjo professjonali | trasmettitur tal-vidjo bla fili cb8822 cb3812 |
trasmettitur-riċevitur tal-vidjo tal-fibra ottika | 16-trasmettitur tal-vidjo tal-kanal | riċevitur trasmettitur tal-vidjo mingħajr fili fuq distanza twila għal |
vidjo trasmettitur wireless | Trasmettitur tal-vidjo awdjo ethernet | manpack cofdm ri-trasmettitur tal-vidjo mobbli bla fili |
wireless video trasmettitur u riċevitur | nuċċalijiet tal-kamera tat-trasmettitur tal-vidjow | 5.8trasmettitur tal-vidjo ghz FPV |
modulu trasmettitur | Trasmettitur tal-vidjo awdjo mingħajr fili | Trasmettitur u riċevitur tal-vidjo mingħajr fili HD-SDI |
trasmettitur-riċevitur | 10km trasmettitur tal-vidjo | 5.8 Trasmettitur u riċevitur tal-vidjo GHz |
Trasmettitur FPV | Trasmettitur tal-vidjo Analog bla fili | 1.2trasmettitur tal-vidjo ghz 400mw |
trasmettitur tv xandira | trasmettitur tal-vidjo VGA mingħajr fili | 5.8riċevitur tat-trasmettitur tal-vidjow mingħajr fili |
COFDM għaqli | 700trasmettitur tal-vidjo mhz | trasmettitur tal-vidjo FPV 1.2ghz bla fili |
Trasmettitur tal-vidjo SDI cofdm | 433 trasmettitur tal-vidjo mhz | 2.4trasmettitur u riċevitur tal-vidjo ghz |
10km mingħajr fili cofdm trasmettitur video | kamkorder trasmettitur video mingħajr fili | 433trasmettitur u riċevitur tal-vidjo awdjo mingħajr fili mhz |
OEM cofdm | Trasmettitur tal-vidjo mingħajr fili USB | Trasmettitur tal-vidjow wifi |
cofdm għaqli | Modulu tat-trasmettitur tal-vidjo bla fili | trasmettitur tal-vidjo mingħajr fili fuq medda twila ta '200km 800mhz |
modulatur żewġ COFDM | Trasmettitur tal-vidjo 15w | Trasmettitur ta 'vidjow awdjo bla fili ta' 5.8ghz |
mini trasmettitur cofdm | Trasmettitur ta 'vidjo awdjo | -Medda twila video wireless 800mhz 100km trasmettitur |
wireless cofdm modulu video trasmettitur | trasmettitur tal-vidjo fuq medda twila | 5.8trasmettitur u riċevitur tal-vidjo bla fili ghz |
encoder modulu cofdm | 25trasmettitur tal-vidjo mw | Trasmettitur tal-konvertitur tal-vidjo bla fili |
modulatur cofdm | trasmettitur tal-vidjo tal-qawwa CCTV | trasmettitur tal-kamera bla fili |
h 265 cofdm modulatur | trasmettitur tal-vidjo li jaħdem bil-batterija | s vidjo trasmettitur bla fili |
hd medda twila cofdm diġitali | Trasmettitur tal-vidjo awdjo tat-televiżjoni | trasmettitur-riċevitur ottiku tal-vidjo diġitali |
trasmettitur tal-vidjo cofdm DVB t | Trasmettitur cofdm FPV | Trasmettitur tat-trasmettitur tal-vidjo awdjo bla fili |
trasmettitur cofdm diġitali HD fuq medda twila | 20km trasmettitur tal-vidjo | video trasmettitur wireless camera |
cofdm trasmissjoni tal-video bla fili | Trasmettitur tal-awdjo u tal-vidjo | Sistemi ta 'trasmettitur u riċevitur mingħajr fili tal-vidjow |
Trasmettitur cofdm Shenzhen | riċevitur trasmettitur wireless video | 8trasmettitur tal-vidjo ottika mini ch |
HDMI li modulatur cofdm | enerġija linja trasmettitur video | trasmettitur-riċevitur tal-mittent tal-vidjo tal-awdjo mingħajr fili |
modulatur cofdm | trasmettitur tal-vidjo HD bla fili | 5video riċevitur trasmettitur ghz |
cofdm mingħajr fili | mini trasmettitur cofdm | Trasmettitur tal-vidjo awdjo mingħajr fili |
trasmettitur wifi HD | Trasmettitur tal-vidjo b'qawwa għolja | trasmettitur tal-vidjo u awdjo mingħajr fili fuq medda twila |
trasmettitur HDMI wireless medda twila | vidjo diġitali trasmettitur FPV | xandir video 10km VHF UHF trasmettitur |
Modulu UHF 5w | Trasmettitur tal-vidjo HD mingħajr fili | 2.4 Trasmettitur tal-vidjo u awdjo mingħajr fili GHz |
433amplifikatur modulu rf MHz | trasmettitur Analog | Transmettitur u riċevitur awdjo mingħajr fili HDMI |
prezz trasmettitur cofdm | kamera video trasmettitur mini | 2km FPV video 5.8ghz wireless av trasmettitur-riċevitur |
2.4trasmettitur CCTV mingħajr fili ghz | Trasmettitur tal-vidjo mingħajr fili PTZ | trasmettitur wireless |
mingħajr fili data link | trasmettitur tal-vidjo RGB mingħajr fili | trasmettitur u riċevitur |
Transmiter video | 2-trasmettitur tal-vidjo watt | trasmettitur mingħajr fili u riċevitur |
50km trasmettitur tal-vidjo HD mingħajr fili | trasmettitur video diġitali uav | trasmettitur-riċevitur mingħajr fili |
Moduli trasmettitur tal-vidjo mingħajr fili HD-SDI | Trasmettitur tal-vidjo awdjo bla fili | trasmettitur UAV |
wireless video trasmettitur u 720p riċevitur | 900 trasmettitur tal-vidjo mhz | trasmettitur shortwave |
modulatur cofdm | Trasmettitur tal-vidjow fuq distanza twila | Trasmettitur u riċevitur tal-vidjo koassjali |
trasmettitur cofdm | Trasmettitur tal-vidjo bla fili bla dewmien | trasmettitur pulizija |
transciever cofdm | Trasmettitur ta 'vidjow awdjo bla fili | trasmettitur hf |
modulu cofdm | -Medda twila transmitter wireless video | trasmettitur DVB |
cofdm spy | Trasmettitur tal-vidjo bla fili portabbli | trasmettitur |
modem cofdm | trasmettitur tal-vidjo għall-kamera IP | 25km ta 'trasmettitur tal-vidjo |
prezz trasmettitur cofdm | wireless video trasmettitur u riċevitur | wireless video modulu riċevitur trasmettitur |
Trasmettitur tal-cofdm UAV | ||
reviżjonijiet
M'hemm l-ebda reviżjonijiet għadhom.