myNIFOG

myNIFOG puts the National Interoperability Field Operations Guide (NIFOG v2.02) and the Auxiliary Communications Field Operations Guide (AUXFOG v1.1) in your pocket — merged, searchable, and fully offline.

**Field reference**
- Every nationwide interoperability channel: VHF low band, VHF, UHF, 700 and 800 MHz, with exact frequencies, tones, NACs, and programming remarks
- Service frequencies: NOAA weather, aviation, maritime, SAR, HF, amateur, PRS, railroad, business
- 87 reference pages: procedures, CTCSS/NAC charts, phonetic alphabet, wiring cards, checklists, antenna building, grounding, ICS organization
- 22 ICS forms with block-by-block instructions · FBI 25 Cities directory
- Big-read display for arm's-length reading · stars · share channels as ICS-205 text
- Three editions: NIFOG only, AUXFOG only, or combined · night mode

**RF coverage estimator**
- Predict coverage for any channel from any transmitter site using NTIA's Irregular Terrain
Model — the same physics engine used by professional planners — over real elevation data
- Signal heatmap, link-margin classes, and voice-quality (DAQ) displays · tap any point for a terrain cross-section with line-of-sight and Fresnel analysis
- Works completely offline: download terrain around you, by state, or nationwide before you deploy · share results as KMZ for Google Earth and ArcGIS

**Planning aid disclaimer (required in listing)**
Coverage estimates are statistical predictions under median conditions — a planning aid, not a guarantee of radio coverage. Verify with radio checks. myNIFOG is an independent application and is not affiliated with, sponsored by, or endorsed by CISA, FEMA, or the U.S. Department of Homeland Security.