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VK3ZWI > AMRVIC 02.10.05 10:51l 42 Lines 1540 Bytes #999 (0) @ WW
BID : 61846_VK3DSE
Read: GUEST
Subj: RSQ gains greater support
Path: DB0FHN<DB0FOR<DB0SIF<DB0FHK<DB0ACC<DB0GOS<DB0RES<ON0AR<VK3DSE
Sent: 051002/0429Z @:VK3DSE.#MEL.VIC.AUS.OC #:61846 [Narre Warren] FBB7.00g25
From: VK3ZWI@VK3DSE.#MEL.VIC.AUS.OC
To : AMRVIC@WW
RSQ gains greater support
-------------------------
The Readability-Signal Strength-Tone report or RST has been a part of
radio operating since about 1934, but is unsuitable for modern digital
modes of transmission.
Graeme Harris VK3BGH, plus K6MBY, GM4KLN and W8NUE have been advocating
the use of the RSQ reporting system for Phase Shift Keying (PSK), with Q
standing for Quality replacing T-Tone that is useful in Morse code
operation.
After working on the concept for a few years, Graeme VK3BGH wrote an
article for the WIA journal Amateur Radio magazine, which was picked up
by CQ Magazine, and then caught the attention of OeVSV (Austrian radio
society).
OeVSV in a successful motion before last month's IARU Region 1 Conference
saw RSQ being unanimously accepted for recommended for use below 30MHz.
Its paper to the conference OeVSV said the use of the traditional RST
system is almost meaningless for digital modes, while RSQ provides a
reliable and accurate description of signals from digital modes such as
PSK31, MFSK, RTTY, Pactor and others.
Graeme VK3BGH says he's delighted at hearing news of the IARU Region 1
recommendation and looks forward to it being considered by the remaining
two IARU regions in coming years.
For PSK, Readability is the percentage of decipherable text, Strength is
a visual measure of the waterfall trace, and Quality attempts to describe
visible unwanted sidebands.
- Amateur Radio Victoria
www.amateurradio.com.au
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