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Standard Definition RF module Modem TX RX Board
SG-TX720
Provided multi-bandwidth design that measure up to national standard and a fully functional integration of innovation with encoding, Modulation and Frequency conversion together.Which greatly improves our goods' stability and performance consistency.It's with small size and low power consumption. Offer optional 2 /2.5/4/8MHz bandwidth and continuously adjustable frequency (300-900MHz, 1MHz interval) .Completely measure up to DVB-T standard.Supports standard COFDM modulation, MPEG2 encoding and standard format of the composite video signal and balanced stereo input and the various electrical performance completely measure up to ETSI EN 300744 standard requirements.
Diagram:
Features:
1) High integration, Performance and Fully-function integrated design;
2) 2 / 2.5 / 4 / 8MHz bandwidth adjustable;
3) Full frequency output, continuously adjustable frequency 300-4000MHz optional
4) 10 level RF Output Adjustable
5) Embedded digital image encoding and signal chip COFDM modulation design;
6) 1 CH analog Video input, 1 CH balanced stereo input
7) Support standard MPEG2 image and audio compression encoding processing
8) Small dimension: 65 * 120 * 8mm
Specifications:
Work environment: -10 ~ 70 ℃
Voltage: DC 10 ~ 14V
Energy Consuming: <5W
Video: Analog composite input
Audio: Analog balanced stereo input
Impedance 50Ω
Power: -18 dBm (divided into 10 level adjustable, 1dBm interval)
Frequency: 300-4000MHz (adjustable, 100MHz interval)
Frequency stability: 2ppm
Harmonic: <45dB
Stray: <45dB
Work mode: 2K
Modulation: COFDM, QPSK
Interval: 1 / 32,1 / 16,1 / 8,1 / 4
Code rate: 1 / 2,2 / 3,3 / 4,7 / 8
Bandwidth: 2M / 2.5M / 4M / 8M (adjustable)
Using interface
Use the external LED module for related parameters Settings:
Frequency Output: modify the output frequency 300-900MHz, stepping in 1MHz
RF bandwidth: modify the RF bandwidth 2M / 2.5M / 4M / 8M
Control interface using simple instructions:
The LED board is composed of digital display and the three buttons Specific Structured as shown in the above frame:. Display portion and key operation part.From left to right, there are menu (LEFT_RIGHT), increase button (UP) and the decrease button (DOWN)
Connection:
Pls properly connect the CONTROL_COM pin port of the full functional modulation module board to the CONTROL_COM pin port of LED control module board according to the correct identification, namely the two boards on the VDD / GND / TX / RX respectively corresponding to the connection
Matched COFDM receiver board
SG-RC1080
1.Interface diagram:
HDMI video output
2. CVBS video output
3. Left and right sound channel output
4. Receiver board Power supply input
5. To connect external FM control panel jack (3.3V,GND,RX,TX--- correspond to below picture(2)one by one )
6. J1: main Receiving antenna (SMA)
7. J2: Secondary receiving antenna (SMA)
2 .FM board
(1) LED panel:FM board’s parameter display screen
(2) To connect external transmitter board’s plug (3.3V,GND,RX,---- correspond to above picture(5) one by one .
(3) Control Keys:HD FM board parameters control keys(Up, down, left, right, OK)
3.HD receiver board description:
First connect the antenna to the AV cables ,and then all the accessories connected well. After power on,the transmitter LED display flash a few times, then become stable. Long Press 2 seconds the "Menu" ,then where the place need to be changed will become to deep black.Via pressing the up and down keys to adjust the figures.After finish it,long press the Menu 1.5S to access locking and stability.
Display as following :
A)"State" stand for the strength of received signal,the greater the percentage, the stronger the signal;
"Freq" stand for the HD receiver frequency.
"Band" disply the bandwidth, 2/2.5/4/ 8M are for your optional; HD is commonly 4M.
"PoE" and "AES" are encryption Status;OFF means “NO”,ON means “YES”.
Operation:
You can set up the system parameters on Receiver's front panel via the Menu key (LEFT_RIGHT), by moving the cursor left and right to move to the position you want to modify the values.Then by using the UP or DOWN to modify or select the parameters required. when the cursor is moved to the last one on the right, long press the menu key (LEFT_RIGHT) 2 seconds, and then save the current set of parameters, it will be constant.By using the Increasing key (UP) and decrease key (DOWN), you can modify the value or select a value.
Specifications:
Model |
HD COFDM demodulation board |
Work voltage |
DC12V |
Work current |
250mA |
Sensitivity |
-105dBm/2MHz |
Video output |
CVBS: Support D1 SD resolution |
Bandwidth |
2/2.5/4/8MHz(option) |
Frequency |
300~900MHz(step in 1MHz adjustable) |
FEC |
1/2,2/3,3/4,7/8 |
guard interval |
1/32,1/16,1/8,1/4 |
RF interface |
SMA or N(option) |
Encryption |
AES |
Demodulation |
COFDM 2K |
Decoding |
H.264/MPEG2 |
Parameters control method |
Through the LCD control panel can set up related parameters |
Size |
120*65*10mm |
1.As such high cost of goods,so normally ship them by DHL/UPS/FedEx Air express.
2.Door to Door service;
3.Be safety and fast.Appr. 3-5 working days then you will receive the package ;
4.Production time: within 5 working days for sample, 10-20 working days for wholesales.
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