COFDM Relay Repeater module no ka drone UAV mea hoʻolele wikiō uila a me ka mea hoʻokipa Vcan1870

COFDM Relay Repeater

COFDM Relay Repeater module no ka drone UAV mea hoʻolele wikiō uila a me ka mea hoʻokipa Vcan1870

Introduction

The module is a relay module, not a completed item. Customers need to add a power amplifier, filters, and receiving and transmitting antennas for it to work effectively. These need to be customized according to the two working frequencies selected by the customer.

To prevent interference, the drone employs a single frequency (e.g. 400MHz) for communication with the relay, and a different frequency (e.g. 700MHz) for communication between the relay module with the receiver. The separation between the two should be as large as possible.

Ka makamake nui o

1. Wireless Video COFDM Video Data demodulation and re-modulation
2. Hoʻololi hōʻailona paʻa i ka NLOS a me ka neʻe ʻana o ka wikiwiki (less than 600km/hour)
3. Hiki ke hoʻololi i ka pinepine hana, bandwidth, mana hoʻoili, a pela aku (Special Parameter Configure Tool or UART STM32 LoRA )
4. Lowest latency 200-300 milliseconds
5. Widely frequency range 200Mhz-3000Mhz
6. Support a i ole 1W
7. Bandwidth 1Mhz-8Mhz ponoʻole
8. Video signal repeater for long-distance

Introduction

hoakaka:

IO

RF hoʻokomo o	Two SMA females (to receive the signal)
RF puka	a laila hoʻouna ʻia ka ʻikepili awa pūnaewele (to send out the signal again)
control UART	4PIN PH1.25mm Connector
mana RF	2PIN PH2.54mm phenix Connector
TF-card	For firmware update
Power led	red LED, constant light when the device is normally powered
Link led	green led, blinks on transmitting the received data

Demodulation and Modulation

Modulation Formats	COFDM(DVB-T)
Nā mea lawe	2K
Bandwidth	mana RF, mana RF
FEC	1/2, 2/3, 3/4, 5/6, 7/8
kiaʻi wā mawaena	1/32, 1/16, 1/8, 1/4
huihui	QPSK, 16QAM, 64QAM
Bitrates	0.5mana RF

RF Received

alapine (frequency) Naapo	160MHz ~ 860MHz (need an extra down converter block for 860-2300Mhz)
Hoʻoponopono i ka nui ʻanuʻu	1KHz
pā lonoaʻili	-97±1dBm(BW=8MHz, QPSK, CR=2/3, GI=1/16) for one channel and add 3dBm for two-channel

RF Transmitted

alapine (frequency) Naapo	200MHz~2300MHz(other bands can be supported with special manufacturing)
Hoʻoponopono i ka nui ʻanuʻu	1KHz
Power out	Configurable, maximum -5dBm(subject to frequency)

Nānā a hoʻomalu
This COFDM relay repeater module can complete setup with our Parameter Configure Tool or STM32+LoRA (or other devices) via control uart. With our parameter configure too, the following parameters can be set:
– RX Received frequency (F1) a me ka bandwidth (B1)
– TX Transmitted frequency (F2), bandwidth (B2), FEC, kiaʻi wā mawaena, constellation, and transmission power

mahana laulā
a i ole 1W: 0° i +70°C Ambient
waho pūnaewele: a i ole 1W

Pono mana
Nā ʻano kino: 7~24VDC
Power hokii: <250mA@12V

Helu ano
Ana: 73x51x15mm
loa Weight: 32.4 nā huna

 

UART AT nā kauoha

The AT commands mainly used in the COFDM Wireless Relay Repeater are ATDR, ATSD, ATGD, ATSR, ATGR, and ATGB. For the introduction of specific commands, see the document.

FAQs

1. What frequency does it support? Does it work well for my existing cofdm video transmitter and receiver?

1. Our COFDM Video Transceiver relay repeater supports 170-860Mhz. The COFDM transmitter also supports 2300Mhz, but the COFDM receiver only supports up to 860Mhz, 861-930Mhz receiver our COFDM-221 supports, over 930Mhz-2300Mhz needs to plus the frequency downconverter block to support.
2. Our COFDM relay repeater module supports all the COFDM transmitters and receivers, the transmission distance depends on your external power amplifier and filter support.

2. Kākoʻo kēia module ma luna o 1.4G? no ka laʻana 2.4G, 3G, a i ʻole 3.6G?

1. ʻAe, kākoʻo.

   COFDM Video encoder modulator transmitter module 3.5G a me 4G hopena hōʻike.

He nīnau nō?

E ʻoluʻolu e kelepona mai iā mākou no ka ʻike hou aku.

Hoʻouna i kāu nīnau

The below model is good for a two-way TDD bidirectional link of the Wireless relay transmitter and receiver or wireless transmitter and receiver relay repeater.