I need to dig more in your lore for Bittic. But as I understand it now you have this as a radio frequency language. So may bit git with your lore or what not but my brain wanted to come up with a system of handwriting the 4x4 grid with rules like Chinese stroke order.

With these radicals, glyphs and combinations can be made for example t+∫=t͡∫

Radicals are written followed by a stroke forming a valley (allows a space for a vowel to exisit) telling a reader where vowels are. Vowel diacritics not manditory except for long vowels where Y and W are used and H in the final position.

Ha Ya Wa

These are the first three letters/radicals in HaYaWa a constructed script for my conlang and a universal phonetic script to write all my notes!