RX888 direct sampling 16bit SDR receiver, HF direct sampling, maximum 32M

  

RX888 direct sampling 16bit SDR receiver, HF direct sampling, maximum 32M. 32M real-time bandwidth, VHF/UHF support to 1.8GHz, maximum real-time bandwidth 8M, USB3.0 connected to the computer for use. It is very important that you never burn a computer, unlike some semi-finished products, which are the easiest to burn a computer. Through the optimization of proprietary software and firmware, the requirements for computer performance have been greatly reduced.

Re-optimize the design of pcb, the clock and phase-locked loop are shielded independently by shielding cover. The spectrum is clean and there is no local oscillator interference. Looking at the frequency spectrum of the last picture, it is clear whether there is any spurious interference. All use LDO power supply, the whole machine 7 LDO power supply, linear power supply to eliminate the interference caused by DCDC. It uses a large vacuum KDS VCXO crystal oscillator, and is designed with a potentiometer to fine-tune the frequency deviation, not a cheap ordinary crystal as a clock.

Adding a 20dB differential low-noise amplification LNA to the ADC front end can effectively improve the medium wave sensitivity and improve the receiving performance under the small-sized antenna. The re-adjusted short-wave LPF low-pass filter, the bandwidth is adjusted to 64M, in preparation for the subsequent upgrade of the software to support a larger bandwidth. Dll, excellent UI and rich setting items, support HF and VHF/UHF antenna bias power supply BIAS-T switch, HF three gears 0db, -10db, -20db attenuation ATT, and VHF LNA And VGA settings, support global bandwidth settings. HDSDR is perfectly supported, and it has been adapted to SDR#, which can theoretically support most SDR software. Follow-up more current known issues in SDR software adaptation: 1.

Heat generation problem, because the ADC chip LTC2208 generates a lot of heat at high sampling rates, even though it has been guided to the shell with a thermally conductive silicone pad, and the shell is also attached with a heat sink. But the shell will still be very hot after working for a long time, but after a long time running test, the stability is OK.

Passive heat dissipation is limited by the size of the heat sink 2. Due to the low completion of the open source project BBRF103 itself, we have made major adjustments in hardware and software. As of June 8, our extio. Dll can run perfectly on HDSDR. SDR# can also work well, and there are some bugs to be improved. Other SDR software will continue to be adapted.

Since VHF uses R820T2 tuning chip, the maximum bandwidth will be limited to 8M, and subsequent attempts may be made to increase to 10M, which means that only shortwave can have a real-time 32M bandwidth. The computer needs to have a USB3.0 interface, and the computer performance should be better, otherwise there will be a freeze under the maximum bandwidth. Spot, you can shoot straight. 1 x RX888 direct sampling 16bit SDR receiver, HF direct sampling, maximum 32M. Days to most other countries.

Return items must not be used or have any sign of abuse or intentional damage. You may expect to receive a response to your inquiry within 24 hours. (Excluding Weekends and Public Holidays). We understand the concerns and frustrations you might have, and will do our endeavor to resolve the issues.

Please give us the opportunity to resolve any problem. The item "RX888 direct sampling 16bit SDR receiver, HF direct sampling, maximum 32M" is in sale since Wednesday, July 29, 2020. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "shenglongsi" and is located in , .

This item can be shipped worldwide.

1. Country/Region of Manufacture: China
2. Brand: Unbranded