User Tools

Site Tools


blog:2019-12-08:js8call_now_faster

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
blog:2019-12-08:js8call_now_faster [2019/12/09 07:10]
va7fi
blog:2019-12-08:js8call_now_faster [2020/08/07 13:03] (current)
Line 1: Line 1:
-====== JS8Call Now Faster ======+====== JS8Call Now Faster (or Slower) ======
  
-Last week, [[http://js8call.com/ |JS8Call]] released their version 2.0.  The big improvement is that there are now three transmission speeds:+At the beginning of December, [[http://js8call.com/ |JS8Call]] released their version 2.0, adding two faster transmission speeds (//Fast// and //Turbo//).  This week, 2.1 was released, adding a //Slow// speed that can work in even weaker SNR conditions. 
  
 ^Mode   ^Bandwidth ^Speed  ^Frame Length  ^Mininum SNR ^ ^Mode   ^Bandwidth ^Speed  ^Frame Length  ^Mininum SNR ^
 +|Slow   |25 Hz     |8 WPM  |30 seconds    |-28 dB |
 |Normal |50 Hz     |16 WPM |15 seconds    |-24 dB | |Normal |50 Hz     |16 WPM |15 seconds    |-24 dB |
 |Fast   |80 Hz     |24 WPM |10 seconds    |-20 dB | |Fast   |80 Hz     |24 WPM |10 seconds    |-20 dB |
 |Turbo  |160 Hz    |40 WPM |6 seconds     |-18 dB | |Turbo  |160 Hz    |40 WPM |6 seconds     |-18 dB |
  
-The new MULTI decoder can decode all three speeds at once.+The new MULTI decoder can decode all four speeds at once.
  
-Tonight, I gave it a quick spin and got copied on "Turbo" by a station near Boston at -13 dB on 80 m (at 22:30).+A few weeks ago, I gave it a quick spin and got copied on "Turbo" by a station near Boston at -13 dB on 80 m (at 22:30).
blog/2019-12-08/js8call_now_faster.1575904205.txt.gz · Last modified: 2019/12/09 07:10 by va7fi