blog:2019-12-08:js8call_now_faster
Table of Contents
JS8Call Now Faster (or Slower)
At the beginning of December, 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).
blog/2019-12-08/js8call_now_faster.txt · Last modified: 2020/08/07 13:03 by 127.0.0.1