Improved __top__: Jtdx

Even with improvements, users run into problems. Here is the fix for the top three:

Downloading the software is only step one. To truly get the experience, you must configure it correctly.

| Mode | Report format | Example | |------|--------------|---------| | FT8/FT4 | Integer SNR in dB | -12 | | JT65 | Integer SNR in dB | -18 | | JT9 | Integer SNR in dB | -10 |

For the most proper report with that improved version: Always use the report, never type a manual RST.