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--- blog:2019-12-08:js8call_now_faster [2019/12/23 08:55] – ve7hzf
+++ blog:2019-12-08:js8call_now_faster [2020/08/07 13:03] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== JS8Call Now Faster (or Slower) ======
+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 ^
+|Slow   |25 Hz     |8 WPM  |30 seconds    |-28 dB |
+|Normal |50 Hz     |16 WPM |15 seconds    |-24 dB |
+|Fast   |80 Hz     |24 WPM |10 seconds    |-20 dB |
+|Turbo  |160 Hz    |40 WPM |6 seconds     |-18 dB |
+The new MULTI decoder can decode all four speeds at once.
+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).