Designed for the commercial, government, amateur radio and shortwave listener communities, this software provides a powerful interface for all sdr users. Rtlsdr rtl2832u and software defined radio news and projects. Using a pc sound card to receive vlf radio signals youtube. Softwaredefined radio using labview and the pc sound card. Software defined radio attempts to place much or most of the complex signal handling involved in communications receivers and transmitters into the digital dsp style. Ham sample and hold sdr software defined radio receiver for ssb,cw,am,fm, drmon hf 30 khz to 70 mhz in connection with pc sound card make it. Using your soundcard for handson digital communication. Softwaredefined radio is a radio communication system where components that have been traditionally implemented in hardware are instead implemented by means of software on a personal computer or embedded system. Janus a sound card designed for software defined radios phil. In its purest form, and sdr receiver might consist simply of an analogtodigital convert chip connected to an antenna. Saq aka grimeton radio station is a heritage vlf transmitter in sweden that transmits cw at 17. Sound card rtlsdr rtl2832u and software defined radio. It does so by creating a windows multimedia driver with a pair of wave inout windows devices. That means you have either built your own radio, are sourcing audio from a sound card based sdr like the funcube dongle or are using iq.
Lanzoni, jose carlos, software defined radio using labview and the pc sound card. Part 1 presentation at rochester amateur radio association by jim veatch, wa2euj, of hobbypcb. The winradio digital bridge virtual sound card is a software option designed to transfer digitized audio signal streams exclusively from the winradio g3series receivers to other applications. Mrp40 is a powerful and highlyeffective ham radio software program that decodes. The soundcard adcdac is a major part of a software defined radio. Software defined radio american radio relay league. An innovative softwaredefined radio sdr approach to advanced communication design lab courseware is proposed and illustrated by an audioband ofdm.
For transmitting cw, the program encodes keystrokes from the computers keyboard. Provide information regarding radio propagation, construction and usage, especially related to software defined radio. The janus board is designed to work with the atlas backplane and ozymandias controller card. Mrp40 is a powerful and highlyeffective ham radio software program that decodes received cw audio that has been fed to a computers sound card. Yesterday we got an email from a reader tom about a soundcard.
Standard pc or usb sound cards can be used as a narrowband vlf capable sdr simply by connecting an antenna to the sound inputs. While the concept of sdr is not new, the rapidly evolving capabilities of digital electronics render practical many processes which were once only theoretically possible. Innovative communication design lab based on pc sound card and. The decoded text is displayed on the computers monitor. The bandwidth will be dependant on the maximum sampling rate of your sound card. A sound card or builtin sound chip with a recording sampling rate of at. Similar sdr software defined radio applications are available for. A teaching platform for digital communications 2007. A basic sdr system may consist of a personal computer equipped with a sound card, or other analogtodigital convert. Q1xxxx type sdr projects sampling by a stereo soundcard of an audio i.