During heavy DF reception, to eliminate historical LOBS but show active signals, which display option should be selected?

• A. Show all
• B. Show only latest
• C. Show historical
• D. Show active signals

Answer: (B)

When DF data gets crowded, the goal is to focus on what's current and remove old clutter. Showing only the latest bearing entries per source filters out the stale history while still presenting the active signals—the most recent measurements reflect the present situation. If you choose to show all, you’ll see the full, noisy history of LOBs. Showing historical emphasizes past data rather than current activity. Showing active signals might filter by activity but doesn’t guarantee that only the most recent data for each source is shown. Therefore, showing only the latest is the best way to eliminate historical LOBs while keeping the current active signals visible.