COFDM wireless Ethernet pob tshab kis tau tus mob module 100M bps RJ45 FDD video transmitter thiab receiver
Mini COFDM wireless Ethernet pob tshab kis tau tus mob module 100M bps RJ45 FDD video transmitter thiab receiver rau UDP IP koob yees duab
Cov Lus Qhia
Introduction
- Qhov no yog broadband cofdm wireless video data kis module. Ob lub transmitter thiab receiver modules muaj RJ45 network thiab UART cov ntaub ntawv thiab tswj interface.
- Lub network chaw nres nkoj ntawm lub transmitter tuaj yeem txuas nrog lub koob yees duab IP raws li qhov chaw video rau kev xa xov wireless, thiab nws tseem tuaj yeem txuas nrog cov ntaub ntawv ntawm qhov chaw nres nkoj network, uas tau xa mus rau qhov tau txais module los ntawm COFDM thev naus laus zis. Lub receiver kuj muaj RJ45 network thiab cov ntaub ntawv UART tswj chaw nres nkoj, thiab nws txhawb UDP playback ntawm lub PC.
- Qhov zaus tuaj yeem hloov kho los ntawm UART serial chaw nres nkoj, los yog ib-txoj kev cov ntaub ntawv kis tau tus mob yuav muab ntxiv kom paub txog qhov yuav tsum tau ntawm tej thaj chaw deb zaus hloov kho yam tsis muaj powering tawm mus pib dua.
- Muaj ob lub RF kav hlau txais xov ntawm no transceiver module, ib tug yog TX thiab lwm tus yog RX, uas tuaj yeem paub txog ob txoj kev sib kis ntawm video thiab cov ntaub ntawv. Ob qhov sib txawv zaus yuav tsum tau teeb tsa, thiab BPF cov ntxaij lim dej yog siv los lim clutter thiab zam kev sib cuam tshuam.
- Cov qauv no tuaj yeem khiav CMD Ping hais kom ua thiab tau txais cov lus teb. (video hauv youtube)
- Qhov no tau txais los ntawm FDD technology.
- Lub neej ua haujlwm zaus yog 340Mhz thiab 590Mhz. (Lwm zaus tuaj yeem kho tau los ntawm 170 ~ 860Mhz)
- Nws tsis suav nrog lub hwj chim amplifier.
nta
- Me me. Ntev 70MM, dav 50MM, qhov siab 20MM
- Tsis tshua muaj zog noj. Nyob rau hauv cov ntaub ntawv ntawm 2M bandwidth, 12V, Tam sim no 200mA
- RF kev ua tau zoo. Spurs qis
- Zoo bandwidth compatibility. Bandwidth 2M ~ 8M bandwidth adjustable ntawm tib lub rooj tsavxwm, kauj ruam 100KHz
- Wide voltage fais fab mov. Lub zog hluav taws xob ntau yam: 6V-20 V.
muaj nuj nqi
- Adjustable tsis
IFFT：2k
khwb luv: 1/4, 1/8, 1/16, 1/32
FEC：1/2、2/3、3/4、5/6、7/8
Tes taws los piav kuas: QPSK (4QAM), 16QAM, 64QAM
bandwidth: 2M ~ 8M bandwidth adjustable, kauj ruam 100KHz
- 128-me ntsis encryption
Lub module txhawb 128-ntsis encryption, thiab lub decryption yuav tsum muaj kev koom tes ntawm lub decryption board
- Kev sib txuas lus tswj serial chaw nres nkoj tsis
8 cov ntaub ntawv me me
1 nres me ntsis
txawm parity
Baud tus nqi: 19200
- Txhawb nqa puv-duplex 100M Ethernet kis tau tus mob, txhawb TCP, UDP.
TCP txhawb nqa point-to-point pob tshab Ethernet kis tau tus mob.
UDP txhawb nqa point-to-multipoint pob tshab Ethernet kis tau tus mob, IEEG 802.3 ib 802.3u.
- RF zaus
cov transmitter ntau zaus txhawb nqa los ntawm 50MHz txog 2.5GHz, nrog ib kauj ruam ntawm 100KHz
cov receiver ntau zaus txhawb nqa los ntawm 158MHz txog 860MHz, kauj ruam 100KHz
- RF tso zis fais fab yog tswj tau
RF tso zis fais fab attenuation yog kho tau los ntawm 0dB txog 15dB
- Txhawb ib tus qauv RS232 cov ntaub ntawv serial chaw nres nkoj
connector
pin 7-12: Txuas Xilinx tus programmer, hloov tshiab firmware tshiab los ntawm lub computer
dimension
COFDM Transceiver pob cov ntsiab lus.
Parameter Configure Board
Kev sib txuas
- Qhov xa kawg ntawm kev tswj qhov chaw nres nkoj ntawm cov keyboard txuas nrog qhov kawg tau txais ntawm qhov chaw nres nkoj module serial
- Qhov tau txais qhov kawg ntawm kev tswj qhov chaw nres nkoj ntawm cov keyboard txuas nrog qhov xa mus kawg ntawm qhov chaw nres nkoj module serial
- Hauv av ntawm kev tswj qhov chaw nres nkoj ntawm cov keyboard txuas nrog hauv av ntawm qhov chaw nres nkoj serial ntawm lub demodulation board
- Lub LCD interface ntawm cov keyboard txuas nrog lub LCD interface ntawm lub LCD board nrog ib tug ca hlau, thiab pin 1 sib raug rau tus pin 1.
- Lub module thiab cov keyboard yuav tsum txuas nrog 12V fais fab mov, thiab lub rooj tsavxwm LCD tsis tas yuav txuas nrog lub hwj chim
Cov yam ntxwv hluav taws xob
- DC fais fab mov, Voltage 6V ~ 20V
- Kev pom zoo: Lub zog hluav taws xob yog 12V, thiab tam sim no yog 200mA ~ 300mA
Kev Tsis
- RF tso zis zog -15 ±3 dBm (tsawg dua 1 GHz, ntau dua 1G, yuav tsum tau ntsuas). Ceeb toom: Here -15 ±3 dBm is the peak power. When we customize the PA (lub zog amplifier) for this COFDM ethernet transceiver, we need to make the PA according to the average power -5dBm.
- Carrier-rau-suab nrov ratio >40dB (Nws yog qhov sib txawv ntawm qhov siab tshaj plaws ntawm qhov ntsuas spectrum thiab qhov taw qhia tawm hauv qab)
FAQs
- Puas yog khub ntawm cov khoom siv siv lub pob tshab ethernet yeeb nkab? Yog
- Puas muaj kev txwv rau tus naj npawb ntawm cov khoom siv (MAC chaw nyob) txhua sab ntawm cov cuab yeej siv tau? tsis
- Dab tsi yog qhov siab tshaj plaws bandwidth ib kwj (RX and TX)? mus txog 30 Mb
- Puas yog RX thiab TX kwj sib npaug, los yog ib tug ntawm lawv muaj qhov tseem ceeb dua (eg, siab dua bandwidth)? tsis
- Puas muaj kev txwv rau hom kev khiav tsheb (tshwj xeeb tshaj yog multicast, tshaj tawm) tias lub cuab yeej tuaj yeem kis tau? tsis
- Puas muaj kev txwv rau kev txhawb nqa ntawm IP raws tu qauv (TCP, UDP, ICMP, SCTP), tshwj xeeb tshaj yog nyob rau hauv ob txoj kev sib txuas lus? tsis txwv
- Yog, thov mus saib test video hauv youtube.
- Download Vcan1886 kev sib txuas lus tswj raws tu qauv
- Ntawm no yog ib qho piv txwv ntawm UART tswj cov lus txib los hloov cov zaus.
- Hloov cov zaus Transmitter mus rau 615Mhz.
- Hauv units ntawm 100KHz, 615Mhz yuav tsum wright 6150
- 6150 hauv decimal yog sib npaug 1806 hauv hexadecimal
- Siab: Tsau hom 0003+18+[03+18= 1B]，yog li ntawd {0003181B}
- Tsawg: Fixed hom ntawv 0004+06+[04+06=0A], yog li ntawd {0004060A}
- {00000101} rov pib dua
- {00000000} rov pib dua
- Hloov cov zaus Transmitter mus rau 700Mhz.
- Hauv units ntawm 100KHz, 700Mhz yuav tsum wright 7000
- 7000 hauv decimal yog sib npaug rau 1B58 hauv hexadecimal
- Siab: Tsau hom 0003+1B+[03+1B = 1 E]，yog li ntawd {00031B1E}
- Tsawg: Fixed hom ntawv 0004+58+[04+58= 5 C], yog li ntawd {0004585C}
- {00000101} rov pib dua
- {00000000} rov pib dua
- Hloov cov zaus Transmitter mus rau 600Mhz.
- Hauv units ntawm 100KHz, 600Mhz yuav tsum wright 6000
- 6000 hauv decimal yog sib npaug 1770 hauv hexadecimal
- Siab: Tsau hom 0003+17+[03+17=1A]，yog li ntawd {0003171A}
- Tsawg: Fixed hom ntawv 0004+70+[04+70= 74], yog li ntawd {00047074}
- {00000101} rov pib dua
- {00000000} rov pib dua
- Thov hu rau peb yog tias koj xav tau lwm yam kev sim video, peb yuav qhia koj paub meej.
- Txawm hais tias peb ob-txoj kev wireless network chaw nres nkoj transceiver module txhawb kev xa cov zaus, uas tuaj yeem xaiv los ntawm 50Mhz mus rau 2500 MHz, Qhov tau txais ntau zaus tsuas yog nyob nruab nrab ntawm 170 ~ 860Mhz;
- Yog tias koj xaiv 900Mhz thiab 2400Mhz raws li kev xa tawm thiab tau txais zaus, koj yuav tsum tau ntxiv ib tug up- converter thaiv thiab down- converter thaiv, zaus lim, hwj chim amplifiers, thiab lwm yam khoom siv.
- tsis.
- Tsuas yog Point-To-Point.
- Yog
- Xav tau siv UART rau Sbus converter board. Thov qhia rau peb yog tias koj xav tau txoj haujlwm no, peb yuav hloov UART rau Sbus rau koj ua ntej xa khoom.
Vcan1886_Mini_COFDM Ethernet IP transceiver module
Cov ntawv qhia zaub mov thiab cov lus qhia ua haujlwm tseem ceeb
zaub mov 1
| C | Cov | F | D | M | |||||||||||||||
| IN | kuv | R | THIAB | L | THIAB | S | S | THIAB | T | H | THIAB | R | N | THIAB | T |
Fais fab rau thiab pib nkag mus rau cov ntawv qhia zaub mov 1, thiab nkag mus rau zaub mov 2 tom qab kev sib txuas lus nrog lub rooj tsavxwm
Yog tias qhov xwm txheej ntawm ntu emission raug teeb tsa ua haujlwm, nias lub pob laug rau 4.
Yog hais tias cov xwm txheej ntawm qhov tau txais seem nqis yog ua haujlwm, nias tus yuam sij rau 3.
Nce thiab down yuam sij thiab tawm, tus yuam sij OK tsis ua haujlwm
Nias tus yuam sij MENU kom nkag mus rau cov ntawv qhia zaub mov 5.
Nias OK thiab tawm tib lub sijhawm kom nkag mus rau cov ntawv qhia zaub mov 16 thiab txuag tag nrho cov kev txwv ntawm cov channel. (Ua li no, kev tswj vaj huam sib luag tuaj yeem siv tau, thiab lub module yuav khiav nrog cov tsis tau txais kev cawmdim tom qab fais fab tuag zaum kawg)
zaub mov 3
| R | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | L | C | K | |||
| 2 | 6 | . | 6 | d | B | – | 9 | 9 | . | 9 | d | B | m |
Nias tus yuam sij nce lossis nqis los hloov qhov tau txais channel, yog muaj channel tshiab, nkag mus rau cov ntawv qhia zaub mov 31
Nias tus yuam sij sab laug lossis tus yuam sij khiav rov qab mus rau ntawv qhia zaub mov 2.
Nias cov ntawv qhia zaub mov kom dhia mus rau Ntawv Qhia 5
zaub mov 31
| R | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | Cov | K | ? | |||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 |
Cov yuam sij nce lossis nqis los hloov pauv cov channel
Nias OK kom rov qab mus rau cov ntawv qhia zaub mov 32.
Escape key rov qab mus rau cov ntawv qhia zaub mov 3
Lwm cov yuam sij tsis muaj txiaj ntsig.
zaub mov 32
| R | 0 | 0 | : | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | . | . | . | . | ||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 |
Tom qab 1 thib ob, rov qab mus rau zaub mov 3.
Lwm cov yuam sij tsis muaj txiaj ntsig.
Ntawv qhia zaub mov 4:
| T | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | L | C | K | ||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 | 1 | 5 | d | B |
Up lossis down tus yuam sij hloov pauv cov channel, yog hloov pauv channel, sau ntawv qhia zaub mov 41
Nias tus yuam sij txoj cai thiab tawm qhov tseem ceeb kom rov qab mus rau cov ntawv qhia zaub mov 2.
MENU tus yuam sij nkag mus rau cov ntawv qhia zaub mov 5.
Ntawv qhia zaub mov 41:
| T | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | Cov | K | ? | ||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 | 1 | 5 | d | B |
Up lossis down tus yuam sij hloov pauv cov channel.
Nias OK kom nkag mus rau cov ntawv qhia zaub mov 42.
Nias tus yuam sij tawm kom rov qab mus rau Ntawv Qhia 4
Lwm cov yuam sij tsis ua haujlwm
Ntawv qhia zaub mov 42:
| T | 0 | 0 | : | 0 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | . | . | . | ||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 | 1 | 5 | d | B |
Hauv 1 thib ob, rov qab mus rau zaub mov 4.
Lwm cov yuam sij tsis muaj txiaj ntsig.
Ntawv qhia zaub mov 5:
| 1 | S | THIAB | T | 1 | 2 | 8 | B | kuv | T | K | THIAB | THIAB | |||||||
| 2 | N | THIAB | IN | T | X | C | H | A | N | N | THIAB | L |
3 N E W R X C H A N N E L
4 D E L T X C H A N N E L
5 DEL RX CHANNEL
6 SET MODULE STATUS
7 SEP HUAB TAIS nrog
Tus cursor nres ntawm 1 thaum nkag,
Nias lub khawm nce lossis nqis kom txav tus cursor.
Ok tus yuam sij xaiv tus lej sib raug rau tus cursor. Xaiv 1: dhia rau 6, xaiv 2: dhia rau 7, xaiv 3: dhia rau 8, xaiv 4 dhia mus 9; xaiv 5, dhia rau 91; xaiv 6, dhia mus rau zaub mov 15; xaiv 7, dhia mus rau zaub mov 17.
Tus yuam sij khiav, thiab rov qab mus rau cov ntawv qhia zaub mov 2 los yog 3, los yog 4.
Nyem sab laug, khawm sab xis, thiab cov ntawv qhia zaub mov tsis ua haujlwm.
Ntawv qhia zaub mov 6:
| 1 | 2 | 8 | B | K | THIAB | THIAB | : | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
Nias tus yuam sij nce lossis nqis los hloov tus lej uas tus cursor nyob,
OK tus yuam sij rov qab mus rau ntawv qhia zaub mov 2 los yog 3, los yog 4.
Escape key los yog menu key rov qab mus rau cov ntawv qhia zaub mov 5
Ntawv qhia zaub mov 7:
| F | R | THIAB | Q | : | 0 | 3 | 4 | 0 | . | 0 | M | B | IN | : | 2 | . | 0 | M | |
| 1 | / | 2 | Q | P | S | K | 1 | / | 3 | 2 | 0 | d | B |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
Nias tus yuam sij nce lossis nqis los hloov tus lej uas tus cursor nyob,
Tom qab nias OK, hla mus rau zaub mov 2 thaum ua tiav.
Escape key los yog menu key rov qab mus rau cov ntawv qhia zaub mov 5
Ntawv qhia zaub mov 8:
| F | R | THIAB | Q | : | 3 | 4 | 0 | . | 0 | M | B | IN | : | 2 | . | 0 | M | ||
| P | IN | S | H | Cov | K | T | Cov | S | THIAB | A | R | C | H |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
Nias tus yuam sij nce lossis nqis los hloov tus lej uas tus cursor nyob,
Tom qab nias OK, hla mus rau zaub mov 10 thaum ua tiav.
Escape key los yog menu key rov qab mus rau cov ntawv qhia zaub mov 5
Ntawv qhia zaub mov 9:
| T | 0 | 1 | 0 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | ||||||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 | 1 | 5 | d | B |
Cov yuam sij nce thiab nqis los hloov tus lej channel.
Tom qab xaiv OK, hla mus rau zaub mov 14
Cov yuam sij khiav tawm 2 los yog 3, los yog 4.
MENU tus yuam sij rov qab mus rau 5
lwm tus yuam sij tsis ua haujlwm
Ntawv qhia zaub mov 91:
| R | 0 | 1 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | |||||||
| 1 | / | 2 | 1 | 6 | Q | A | M | 1 | / | 3 | 2 |
Cov yuam sij nce thiab nqis los hloov tus lej channel.
Tom qab xaiv OK, hla mus rau zaub mov 141
Escape key rov qab mus rau cov ntawv qhia zaub mov 2
MENU tus yuam sij rov qab mus rau 5
lwm tus yuam sij tsis ua haujlwm
Ntawv qhia zaub mov 10:
| F | R | THIAB | Q | : | 3 | 4 | 0 | . | 0 | M | B | IN | : | 2 | . | 0 | M | ||
| S | THIAB | A | R | C | H | kuv | N | G | . | . | . | P | L | S | IN | A | kuv | T |
txhua tus yuam sij tsis ua haujlwm
Rau zaus kaw, mus rau ntawv qhia zaub mov 12, yog tsis kaw, mus rau ntawv qhia zaub mov 11
Ntawv qhia zaub mov 11:
| F | R | THIAB | Q | : | 3 | 4 | 0 | . | 0 | M | B | IN | : | 2 | . | 0 | M | ||
| IN | N | L | Cov | C | K | P | IN | S | H | Cov | K | R | THIAB | T | R | THIAB |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
Nias tus yuam sij nce lossis nqis los hloov tus lej ntawm tus cursor, yog hloov, rov qab mus rau zaub mov 8
Tom qab nias OK, hla mus rau zaub mov 10 thaum ua tiav.
Escape key los yog menu key rov qab mus rau cov ntawv qhia zaub mov 5
Ntawv qhia zaub mov 12:
| F | R | THIAB | Q | : | 3 | 4 | 0 | . | 1 | M | B | IN | : | 2 | . | 0 | M | ||
| L | Cov | C | K | P | IN | S | H | Cov | K | T | Cov | S | A | IN | THIAB |
Tom qab nias OK, dhia mus rau cov ntawv qhia zaub mov 2 los yog 3 los yog 4 thaum ua tiav
Escape key los yog menu key rov qab mus rau cov ntawv qhia zaub mov 5
lwm tus yuam sij tsis ua haujlwm
zaub mov 14
| T | 0 | 1 | 0 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | ||||||
| D | THIAB | L | THIAB | T | THIAB | ? | THIAB | THIAB | S | N | Cov |
Dhia rov qab mus rau zaub mov 9 tom qab kev xaiv
zaub mov 141
| R | 0 | 1 | 3 | 4 | 0 | . | 0 | M | 2 | . | 0 | M | |||||||
| D | THIAB | L | THIAB | T | THIAB | ? | THIAB | THIAB | S | N | Cov |
Dhia rov qab mus rau zaub mov 91 tom qab kev xaiv
zaub mov 15
| T | X | : | Cov | N | R | X | : | Cov | N | ||||||||||
| P | IN | S | H | Cov | k | T | Cov | S | A | IN | THIAB |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
Cov yuam sij nce thiab nqis los hloov lub xeev.
OK tus yuam sij rov qab mus rau ntawv qhia zaub mov 2
Escape key rov qab mus rau cov ntawv qhia zaub mov 2
MENU rov qab mus rau zaub mov 5.
zaub mov 16
| S | THIAB | T | T | 0 | 1 | R | 0 | 1 | C | H | A | N | N | THIAB | L | ||||
| T | Cov | B | Cov | A | R | D | ? | THIAB | THIAB | S | N | Cov |
Cov yuam sij sab laug thiab txoj cai txav tus cursor,
OK tus yuam sij rov qab mus rau ntawv qhia zaub mov 2
zaub mov 17
| S | THIAB | T | D | A | T | A | C | Cov | M | P | Cov | R | T | ||||||
| 2 | 3 | 0 | 4 | 0 | 0 | THIAB | IN | THIAB | N | Cov | K | ? |
Cov yuam sij sab laug thiab txoj cai txav tus cursor, nce thiab nqis yuam sij xaiv
OK tus yuam sij rov qab mus rau ntawv qhia zaub mov 2
Escape key rov qab mus rau cov ntawv qhia zaub mov 2
MENU rov qab mus rau zaub mov 5.
channel loj parameter xam txoj kev siv
Qhov siab tshaj plaws channel peev xwm ntawm qhov system tuaj yeem suav nrog cov qauv hauv qab no:
Rmax = 6.75 x b x FEC x (188/204) x (1/(1+GD)) x (BW/8)
Rmax: Lub peev xwm siab tshaj plaws ntawm cov channel(Mb/s)
B: Coupling wave ratio muaj nuj nqi, QPSK teevib = 2, 16QAM teevib = 4，64QAMteevib = 6
FEC: internal yuam kev kho code tus nqi(1/2, 2/3, 3/4, 5/6, 7/8)
GD: khwb luv1/4, 1/8, 1/16, 1/32
BW: Bandwidth hauv M
Raws li cov qauv saum toj no, lub peev xwm siab tshaj plaws ntawm cov channel tuaj yeem suav tau raws li ob peb yam tsis muaj. Cov lus hauv qab no qhia txog cov ntaub ntawv muaj peev xwm hauv qab 8M bandwidth. Lub kaw lus yuav cia li xam qhov loj ntawm cov zis tso zis tso zis raws li qhov teeb tsa channel tsis yog kom qhov loj ntawm cov zis ntws tsis ntau dua li qhov siab tshaj plaws ntawm cov channel..
Ceeb toom
Nyob rau hauv txoj hauj lwm L25 ntawm lub rooj tsavxwm (ntawm U13, txoj hauj lwm yog khoob thaum tawm hauv lub hoobkas) ib tug 0603 inductance tuaj yeem muab ntxiv los ua kom lub zog tso zis ntau ntxiv. Tus nqi ntxiv inductance tuaj yeem xa mus rau hauv daim duab hauv qab no.
Ceev faj rau kev txiav txim customization
- FDD, raws li lub pob tshab kis tau tus mob module ntawm cov phooj ywg-rau-peer network nrog network chaw nres nkoj RJ45. Nws los nrog ob COFDM modules nrog ntau zaus. Lub neej ntawd zaus yog 340Mhz thiab 590Mhz, cov neeg siv khoom tuaj yeem hloov kho nws los ntawm qhov parameter configuration board.
- Raws li lub neej ntawd zaus ntawm 340Mhz thiab 590MHz, cov khoom siv xa tuaj yuav muaj lub kav hlau txais xov ntawm qhov zaus zaus. Yog tias koj xav hloov qhov zaus koj tus kheej, thov qhia rau peb paub yog tias peb yuav tsum muab lub kav hlau txais xov rau qhov sib txuam zaus.
- Nrog cov parameter kho cov ntawv qhia zaub mov thiab tshuaj ntsuam, koj tus neeg siv khoom xav tau ib qho los hloov qhov parameter.
Thaum cov parameter raug kho kom zoo, lawv tuaj yeem raug tshem tawm. Tsuas yog koj qhov kev txiav txim kom muaj nuj nqis, thov qhia kuv muaj pes tsawg pcs ntawm cov ntawv qhia zaub mov thiab tshuaj ntsuam koj xav tau.
voice over ip radio system передатчик вай фай
Yog thawj saib xyuas "COFDM wireless Ethernet pob tshab kis tau tus mob module 100M bps RJ45 FDD video transmitter thiab receiver”
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Unidirectional Ib-Txoj Kev
Video Transmitter
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Muaj cov kev xyuas tsis tau.