At 20 word per minute code speed this means that switching times must be less than 5 milliseconds, preferably in the range of 1 or 2 milliseconds are required, even shorter sub-millisecond times are required with higher speed code transmissions.
Even shorter sub-millisecond times are required with higher speed code transmissions. This was at 20 word per minute code speed. Switching times must be less than 5 milliseconds, preferably in the range of 1 or 2 milliseconds are required minute code speed. This means this.