A calm, practical walkthrough for a first spirit box session: what gear to start with, how to set it up, how to ask questions, and how to review responses honestly.
A plain comparison of the three Pro Measure spirit boxes: the classic P-SB7, the dual-sweep P-SB11, and the flagship PSB7-PRO. Which one fits a beginner, an enthusiast, and a serious researcher.
Frequency overlap is the technique behind the PSB7-PRO Spirit Box. Gary Galka explains adjustable frequency steps, clustered hot spots, and why they give responses more room to form.
ITC, or Instrumental Trans-Communication, is the use of electronic instruments to capture and study possible responses. A plain-English introduction to the history, the method, and the tools.