Some of these leave a lot to be desired as many operators seem to think that you are interested in what sound card and other computer equipment they are using. One is that many contacts tend to be “rubber stamp” QSOs with amateurs just sending pre-prepared texts or macros. Before you transmit you will need to make sure that you are not overdriving your transceiver. The best way to get started is set the system up and see if you can decode some of the PSK31 signals on, say, 14.07015MHz on 20m. The signals from your computer are fed via the interface to either the radio’s microphone jack or an auxiliary connection into the transceiver, where they are transmitted. You can build your own or buy one ready made.
Rtty sound sample mac#
Lastly, you’ll need a data interface and cables to connect your computer (Windows, Mac or Linux) to your transceiver. Next you will need some software, such as FLDIGI, Digipan or WinPSK – most of the packages are free. So what do you need to work PSK31? First, you need a transceiver capable of working on single side band (SSB) – you’ll actually be using upper side band (USB). Typically, you can make good round-the-world PSK31 contacts with 10-25W. PSK31 can often overcome interference and poor propagation conditions in situations where voice or other data methods of communication fail.Ĭontacts can be conducted at less than 100Hz separation, so with disciplined operation at least 20 simultaneous PSK31 contacts can be carried out side-by-side in the bandwidth required for just one SSB voice contact. The mode was enthusiastically received and has since quickly spread into worldwide use. PSK31 was developed by Peter Martinez (G3PLX) and introduced to the amateur radio community in late 1998.
It works very well with low power levels and for this reason it has become a firm favourite for QRP and stealth antenna operators. A PSK31 signal just sounds like a single tone or note with a slight wobble and is used for real-time keyboard-to-keyboard informal text “chats” over the air.
Rtty sound sample download#
Unlike RTTY (radio teletype) the characters are formed by changing the phase of the sound wave, not by using different tones. On this page you can download samples of popular and not (yet) so popular digimodes if you have further samples of missing modes, please forward to us here. PSK31 stands for Phase Shift Keying 31 baud (or 31 bits per second/bps). PSK31 is a highly-efficient data mode that lets you work long distances, even when you can barely hear the signal.
0 kommentar(er)
