So, once you have listened, and watched the psk31 qsos warbling around the world, and. Fldigi is a computer program intended for amateur radio digital modes. Therefore some form of soundcard interface may be used. In psk31 programs this means that you should be within the range of 500 to 2500 hz in the waterfall display. Use your sound card master volume applet to select the sound card, the. Supported modes are rtty baudot code, ascii 7 or 8 bits,bpsk31,qpsk31,psk63,bpsk125,amtor sitor,navtex, mfsk16, mfsk8, hf and uhfpacket ax25, dtmf. The 31 baud bpsk modulation system used in psk31 was introduced by sp9vrc in his slowbpsk program. Virtually any ssb transceiver or transmitterreceiver pair can operate psk if it has adequate frequency stability. Once these calibrations are applied to the software, no changes should ever have to be made again, unless you change your software to radio interface sound card.
Instead of the traditional frequencyshift keying, the information is transmitted by. Fldigi does not seem to control my yaesu ftdx3000, in which there is a direct usb connection to the transceivers built in sound card, and so on. Psk31 programs for ham radio psk31 digital mode emissions category is a curation of 36 web resources on, propnerpsk, rx psk31, sim psk 31. Digipan stands for digital panoramic tuning and brings the ease and simplicity of panoramic reception and transmission to psk31and psk63 operation. Basics of ham radio sound card interfaces psk 31 and other. The software is compatible with microsoft windows xp, microsoft windows vista, and microsoft windows 7, 8 and 10. Nbemsfldigi sound card calibration jeffrey kopcak, mba. You will need some type of sound card interface to go between your radio and computer.
In the programs options window, select soundcard in the first window on the left side. I like it and continue to use it exclusively at this point. A program for amateur radio digital communications via a sound card. I started out with psk31 just recently and began using fldigi. Ham radio digital communications using the application fldigi running on ubuntu. It can help calibrate a sound card to a time signal and do frequency measurement tests. The classic psk hardware configuration is a computer with sound card, an ssb transceiver, and an interface between the two for audio signals and sometimes pushtotalk or ptt. Hfpacket and uhfpacket ax25 are supported in kisstnc emulation mode. Psk31 software will output audio to the pcs soundcard to send a transmission, however a mechanism must exits for keying the radio to transmit an rf signal, as well as link the audio tone to the radios audio input.
Sim psk 31 sim psk 3163 integrated structured message bpsk31 is a digital mode based on bpsk that use a structured predefined coded format to send messages, windows free software developed by. Soundcard oscilloscope is a program that emulates an oscilloscope from. Vary the tuning to give an audible output of about 1khz and you should see words appearing in the middle of the psk software window. This is a less effective way of calibrating fldigi. Fldigi is a modem program for most of the digital modes used by radio. Supported modes are rtty baudot code, ascii 7 or 8 bits, psk31 bpsk and qpsk, bpsk63, qpsk63, bpsk125, amtorfec sitorb, navtex, multifsk16, multifsk8. Psk31 fundamentals the psk31 philosophy, tips and tricks, sound files, how to get started, sound card setup. Amateur radio station ka6mal california, usa makes.