QRSS Index

Under construction

What is a QRSS Hyperlink Index?

QRSS is a method of sending morse code very slowly (typically 3 seconds or more per dit) this is a very efficient way of sending information and huge distances can be covered using very low transmitter power. The disadvantage of sending so slowly is that the information that can be sent is usually confined to just the transmitting stations callsign. The hyperlink pulse is a method of sending far more information by adding a 3 digit number to the normal CW callsign in the format of a pair of pulses. The width of the pulse itself and the gaps before and after the the callsign ID can be measured to obtain the 3 digit number. The number can be easily read by eye using one of the popular QRSS programs such as ARGO or Spectran.  One advantage of the hyperlink pulse is that you only need to correctly identify 4 transition points on the trace compared with 30 or more for a full Morse callsign. This can be particularly useful if the signal is affected by interference or fading.


The example above shows how hyperlink pulses can be incorporated into the normal station ID pulse train.
The gap between the end of the call-sign and the start of the hyperlink pulse is measured in multiples of 10 seconds so that 10 = 1, 20 = 2, 30 = 3 etc.. 
The width of the pulse is measured in the same way.
The space between the pulse and the start of the call-sign forms the third figure of the hyperlink index.


Things to remember

1. Try to choose numbers that will produce a pulse that will produce pulse widths that are different to your callsign information.
2. Set up a web page showing information about your station and provide a link. This could be your QRZ profile page.
3. Bear in mind that higher numbers will take a long time to send (for most applications individual digits of  5 or less are recommended).
4. Do not use zeros.

To have your call-sign and link added to the list send your requested index number, callsign and link URL to the following email addess.


 


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Index NumberCallsignWeb Page
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Index NumberCallsignWeb Page
234 G7AQK http://sites.google.com/site/g7aqkhamradio/home/my-qrss-beacon 
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