@mytec Phase 1 - Core UI & Manual Input, Phase 2 - RF Calculation Engine, Phase 3 - Heatmap Visualization

frontend/src/types/coverage.ts

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+export interface CoveragePoint {
+  lat: number;
+  lon: number;
+  rsrp: number;               // dBm (calculated signal strength)
+  siteId: string;              // which site provides this coverage
+}
+
+export interface CoverageResult {
+  points: CoveragePoint[];
+  calculationTime: number;     // milliseconds
+  totalPoints: number;
+  settings: CoverageSettings;
+}
+
+export interface CoverageSettings {
+  radius: number;              // km (calculation radius)
+  resolution: number;          // meters (grid resolution)
+  rsrpThreshold: number;       // dBm (minimum signal to display)
+}
+
+export interface GridPoint {
+  lat: number;
+  lon: number;
+}

frontend/src/types/frequency.ts

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+export interface FrequencyBand {
+  value: number;               // MHz
+  name: string;                // e.g., "Band 3"
+  range: string;               // e.g., "1710-1880 MHz"
+  type: 'LTE' | 'UHF' | 'VHF' | '5G' | 'Custom';
+  characteristics: {
+    range: 'short' | 'medium' | 'long';
+    penetration: 'poor' | 'fair' | 'good' | 'excellent';
+    typical: string;
+  };
+}

frontend/src/types/index.ts

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+export type { Site, SiteFormData } from './site.ts';
+export type {
+  CoveragePoint,
+  CoverageResult,
+  CoverageSettings,
+  GridPoint,
+} from './coverage.ts';
+export type { FrequencyBand } from './frequency.ts';

frontend/src/types/site.ts

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+export interface Site {
+  id: string;
+  name: string;
+  lat: number;
+  lon: number;
+  height: number;             // meters above ground (1-100)
+  power: number;              // dBm (10-50)
+  gain: number;               // dBi (0-25)
+  frequency: number;          // MHz (any value)
+  antennaType: 'omni' | 'sector';
+  azimuth?: number;           // degrees (0-360), sector only
+  beamwidth?: number;         // degrees (30-120), sector only
+  color: string;              // hex color for map marker
+  visible: boolean;
+  notes?: string;
+  equipment?: string;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export type SiteFormData = Omit<Site, 'id' | 'createdAt' | 'updatedAt'>;