You will need to go through a text based set up at the very beginning.On this page we will attempt to list, categorize and provide a brief overview of each software program.
We categorize the programs into general purpose software, single purpose software, research software and software compatible with audio piping. Inmarsat Software Defined Radio Dongle Full Overview OfWe have a full overview of the installation procedure on our Quick Start Page. SDR is designed to be use with the 199 Airspy SDR, but works just fine with the RTL-SDR. It has a useful modular plugin type architecture, and many plugins have already been developed by third party developers. Inmarsat Software Defined Radio Dongle Download Without AnyThe basic SDR download without any third party plugins includes a standard FFT display and waterfall, a frequency manager, recording plugin and a digital noise reduction plugin. HDSDR supports the RTL-SDR through use of an ExtIO.dll module. To install HDSDR, download the program from the link on the main HDSDR page, then to use the RTL-SDR you will need to download the ExtIORTL2832.dll file an place it into the HDSDR folder. When opening HDSDR, select the newly copied ExtIORTL2832.dll. The other dlls that come with HDSDR will not work with the RTL-SDR, even though they have RTL-SDR in their filename. Users will also find an Audio FFT and waterfall display on the bottom of the screen. The output audio can also be bandpass filtered by dragging the filter borders on the display. Bandpass filtering the audio can really help clean up a noisy signal. The audio processing also supports placing of notch filters either manually or automatically. There are also noise reduction and noise blanker features and an automatic frequency centering algorithm which will automatically center the signal, so you dont need to click exactly in the center of a signal. Traditional ham radio users will also enjoy the S-units signal strength meter and the built in frequency manager. As such is it a fair amount more difficult to learn and use compared to SDR and HDSDR. Be sure you install version 2 and not V1.5 as only V2 has RTL-SDR support. To compile your own dlls see the instructions here, otherwise download the dlls directly from the bottom of this link. If the dlls were placed in the correct folder you will be able to add your RTL-SDR as a receiver by clicking on the Definitions button, and then finding and adding the RTL SDR (USB) option under the search drop down menu. Built in are also several DSP features like a noise blanker, noise reduction filter, notch filter and squelch options. The EMNS noise reduction filter is particularly good at automatically cleaning up and clarifying voice signals. Furthermore, sdr-radio V2 (not V3 yet) has an excellent remote server which will allow you to easily set up and connect to a remote RTL-SDR server over a network or the internet. Finally, sdr-radio is capable of listening to up to 6 signals in the same chunk of visible spectrum at a time. It has multi-frequency interval IQ correction, a very powerful smart noise blanker, multicast output, weak signal optimized waterfall, settings to aid in taking performance measurements, two RF channel input, superior AGC and an adaptable automatic frequency controller (AFC). Linrad is probably the software most superior in terms of actual signal processing performance.
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