PSK63

PSK63

PSK63 or Phase Shift Keying, 63 Baud, is a digital and communications protocol for sending data over a radio link. PSK63 can be used by amateur radio operators to conduct real-time text-based chat between locations.

History

In April 2003, Skip Teller, KH6TY, one of the co-authors of DigipanClarifyme|date=September 2008, introduced a modified version of the PSKCore dllClarifyme|date=September 2008 which supports a mode called PSK63.
* Unlike PSK63F, PSK63 does not use forward error correction (FEC).
* Therefore PSK 63 is twice as fast as PSK63F'sClarifyme|date=September 2008 but exactly the same speed as PSK125F.
* It has been suggestedby whom that PSK63 should be a good contesting modeClarifyme|date=September 2008, noting that it is both faster and uses less bandwidth than standard RTTY [http://storm.ca/~ve3iay/digital.html] Fact|date=September 2008.

Spectrum efficiency compared to other modes



Mode Support

PSK63 is now supported directly in KH6TY's own QuikPSK software, as well as in Digipan, AA6YQ's WinWarbler, F6CTE's MultiPSK, AE4JY's WinPSK, HB9DRV's DM780 , PSK31 Deluxe, MMVARI, Fldigi, MIXW, and DL4RCK's RCKRtty.

Others are likely to follow, now that version 1.17 of the PSKCore dll supports both PSK31 and PSK63. QuikPSK, MultiPSK and PSK31 Deluxe can decode up to 24 signals simultaneously. QuickPSK has a unique additional capability to send colour thumbnail pictures (32x32 pixel, 16 colours) using the PSK63 mode.



PSK Software Core

A PSK63-only version of the PSKCore dll is also available at KH6TY's web site for use with any software that uses PSKCore to implement PSK31. Simply by replacing the original PSKCore file (it is suggested that you rename the original rather than deleting it) with the new version, the PSK31 software supports PSK63 instead of PSK31.

This technique has been used during early experiments with the PSK63 mode, but it is not likely to continue to be very widely used now that software that supports PSK63 directly has become widely available.

ee also

* PSK31
* MT63
* varicode
* Radioteletype
* Shortwave

External links

* [http://f1ult.free.fr/DIGIMODES/MULTIPSK/PSK63_en.htm "BPSK63, QPSK63 and PSK63F"]
* [http://www.xs4all.nl/~eeuwen/PSK63F.htm PSK63F]


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