گیرنده downlink بی سیم COFDM
–160MHz~860MHz HD video COFDM wireless downlink Receiver with HDMI/AV/USB output
The COFDM Diversity Receiver is a compact digital diversity receiver with integrated H.264/H.265 decoding in a compact and lightweight housing, suitable for use in fluid and high-mobility applications. The unit accepts signals from two antennas to significantly enhance the demodulated performance and increase the operating range. This receiver can find and lock automatically to the incoming transmission quickly according to the pre-set frequency and bandwidth. This receiver features a range of comprehensive signal outputs including HD at 720p and 1080P, down-converted HD CVBS monitor video, and two analog audios is supported.
This COFDM receiver also includes DVR record functionality with Micro SD card or USB disk using REC switch controls. And this receiver also enables video streaming over USB for remote Android device decoders like Smart phone or Android PAD. This allows multiple remote viewers to monitor the same video simultaneously.
When paired with our COFDM wireless Downlink camera transmitter, this COFDM receiver offers a comprehensive, rapidly-deployable video and audio solution that enables advanced situational awareness. It can play an essential role in delivering real-time live video from both ground and airborne mobile platforms.
- COFDM demodulation and H.264/H.265 video decoder;
- Full HD resolution, 1080P@60fps; Optional 4K@30fps(3840*2160پ).
- Great security by AES decryption;
- DVR record with Micro SD card or USB disk;
- Enables video streaming over USB host for remote device;
- Stable signal transfer in NLOS and high speed moving;
- Adjustable working frequency, band width.
مشخصات
IO
| HD video output | HDMI type A connector |
| Composite video output | 4PIN PH2.0mm connector |
| خروجی صوتی | Embedded HDMI and 4PIN PH2.0mm connector |
| ورودی RF | Two SMA female 50Ω |
| Power in | 2PIN PH2.0mm connector |
| USB Host | Type A connector |
| OSD Key | Switch key for OSD-display |
| Rec Key | Switch key for Video recording |
| 3.3V TTL data uart | 3PIN PH1.25mm connector |
| 3.3V TTL control uart | 4PIN PH1.25mm connector |
| TF-Card | TF-Card slot |
مدولاسیون
| Demodulation Formats | COFDM(DVB-T) |
| Carriers | 2ک |
| پهنای باند | Configurable from 1MHz to 8MHz, step by 1KHz |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| بازه گارد | 1/32, 1/16, 1/8, 1/4 |
| صورت فلکی | QPSK, 16قام, 64قام |
| Bitrates | 0.5Mbps to 31.67Mbps |
RF
| باندهای فرکانس | 160مگاهرتز ~ 860 مگاهرتز |
| Tuning Step size | 1کیلوهرتز |
| حساسیت | -97±1dBm(BW=8MHz, QPSK, CR=2/3, GI=1/16) for one channel and add 3dBm for two channel |
Video and Audio
| خروجی تصویری | HDMI و CVBS, یو اس بی |
| قالب های ویدیویی | 1080P or 720P720*480 60I(NTSC), 720*576 50من(رفیق)Optional 3840*2160P |
| Video Decoding | H.264/H.265 |
| خروجی صوتی | Embedded HDMI and AV audio |
| رمزگشایی صوتی | AAC |
| Decryption | AES256 |
| ذخیره سازی | USB disk or micro SD card |
Monitoring and control
Comprehensive receiver setup with our Config Panel or Windows PC or other device via control UART.
Temperature range
Full specification: 0° to +70°C Ambient
ذخیره سازی: –40° to +80°C
خصوصیات فیزیکی
وزن: 169g
ابعاد: 91x80x30mm
Power requirements
Input range: 7~16VDC
مصرف برق: about 250mA@12V
کلیدها & LEDs:
This COFDM receiver has 3 LEDs:
PWR LED: شاخص قدرت, red constant light when device is normal powered;
پیوند LED: wireless link indicator, green blinks when video stream received;
REC LED: شاخص ضبط, green constant light when video recording
REC key: switch button for video recording, short press to change it’s status. The receiver will automatically check the storage device(micro SD card or USB disk, priority SD card) after power on and start to record video when the storage device is inserted. Just press the button to stop or record again.
OSD key: turn on/off the status of the OSD displaying, long press it to switch(more than 1s). the status will be kept after reboot. When the OSD status is on without any OSD data input from the data uart, the device will display information on the video screen as:
RF：338.0MHz BW：4.0مگاهرتز ; RF, فرکانس کاری; BW, پهنای باند
QPSK CR：2/3 GI：1/16 ; صورت فلکی, FEC, بازه گارد
هوا：3.90مگابیت در ثانیه; هوا, wireless transmitting bitrates
VBR：3.05Mbps AES OFF ; VBR, video bitrates; AES OFF, AES encryption turned off.
SIG1：27 SIG2：22 ; SIG1, signal intensity of ant 1; SIG2, signal intensity of ant 2
ber1：0.14% ber2：100.00% ; ber1, bit error rate of ant 1; ber2, bit error rate of ant 2
REC OFF بدون ذخیره سازی ; video recording status
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