The terms "Marginal" and "Good" displayed when connected to an ADS-B receiver indicate the quality of FIS-B (weather) reception from ADS-B ground towers. These terms do not reflect the quality of traffic data reception.
- No Towers: No FIS-B weather data is available.
- Marginal: Limited weather data may be available, but gaps could exist, and CONUS radar might not be accessible.
- Good: Complete weather data is available, and CONUS radar should be accessible if broadcast during the indicated reception period.
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