COFDM Relay Repeater
COFDM Relay Repeater modul pikeun drone UAV pamancar video nirkabel sarta panarima Vcan1870
Daptar eusi
perkenalan
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.
hal nu husus
- Wireless Video COFDM Video Data demodulation and re-modulation
- Stable signal transfer in NLOS and high-speed moving (less than 600km/hour)
- Adjustable working frequency, rubakpita, kakuatan transmisi, jsb (Special Parameter Configure Tool or UART STM32 LoRA )
- Lowest latency 200-300 milliseconds
- Widely frequency range 200Mhz-3000Mhz
- sokongan dua saluran input / encoding / ngirimkeun dina waktos anu sareng
- bandwidth 1Mhz-8Mhz meunang milih
- Video signal repeater for long-distance
perkenalan
spésifikasi:
IO
RF input | Two SMA females (to receive the signal) |
kaluaran RF | SconB atanapi SconC (to send out the signal again) |
control UART | 4PIN PH1.25mm Connector |
TTL 3.3V sacara standar | 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
Format modulasi | COFDM(DVB-T) |
Pamawa | 2K |
bandwidth | TTL 3.3V sacara standar, TTL 3.3V sacara standar |
FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
interval hansip | 1/32, 1/16, 1/8, 1/4 |
rasi | QPSK, 16QAM, 64QAM |
Bitrates | 0.5TTL 3.3V sacara standar |
RF Received
Pita frékuénsi frékuénsi | 160MHz ~ 860MHz (need an extra down converter block for 860-2300Mhz) |
Ukuran Lengkah Tuning | 1kHz |
lemes parasaanana | -97±1dBm(BW=8MHz, QPSK, CR=2/3, GI=1/16) for one channel and add 3dBm for two-channel |
RF Transmitted
Pita frékuénsi frékuénsi | 200MHz~2300MHz(other bands can be supported with special manufacturing) |
Ukuran Lengkah Tuning | 1kHz |
Power out | Configurable, maximum -5dBm(subject to frequency) |
Pangimeutan jeung kontrol
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) and bandwidth (B1)
– TX Transmitted frequency (F2), rubakpita (B2), FEC, interval hansip, constellation, and transmission power
rentang suhu
dua saluran input / encoding / ngirimkeun dina waktos anu sareng: 0° to +70°C Ambient
panyimpenan: dua saluran input / encoding / ngirimkeun dina waktos anu sareng
syarat kakuatan
dua saluran input / encoding / ngirimkeun dina waktos anu sareng: 7~24VDC
konsumsi power: <250mA@12V
Ciri fisik
dimensi: 73x51x15mm
Beurat kotor: 32.4 gram
UART AT commands
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
- 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.
- Our COFDM relay repeater module supports all the COFDM transmitters and receivers, the transmission distance depends on your external power amplifier and filter support.
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.