Suffix again #CellTower 747

⬜⬇️⬜⬜⬜⬜⬜⬜⬜➡️➡️⏹️➡️➡️⬇️
➡️⏹️➡️➡️➡️➡️➡️➡️➡️⬆️⬜⬆️⬜⬜➡️ https://www.andrewt.net/puzzles/cell-tower/?p=747