CTX RC vs Antennascope

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Antennascope is your all-in-one tool for finding the best TV transmitters and perfectly aligning your antenna — no professional installer needed. Simply enter your postcode or use GPS, and Antennascope instantly finds the nearest transmitters, estimates signal strength, and shows you exactly which direction to point your aerial. The built-in compass guides you in real time until you're locked on target. FIND YOUR TRANSMITTER Search by postcode, ZIP code, or current GPS location. Antennascope calculates the distance, bearing, and estimated signal strength for every transmitter in range. Results are ranked so you can quickly identify your best option. REAL-TIME COMPASS ALIGNMENT Open the compass and rotate your antenna until you hit the green zone. The live heading display shows exactly how many degrees to turn and in which direction. An on-screen signal meter and "ON TARGET" indicator confirm when you're perfectly aligned. INTERACTIVE MAP See all nearby transmitters plotted on a map alongside your location. Tap any pin to view full transmitter details including channels, power output, and distance. Plan your installation before you even pick up the aerial. FULL TRANSMITTER DETAILS For every transmitter, view: Signal strength estimate with contributing factors Distance and compass bearing Broadcast power (ERP) and polarisation Aerial group recommendation (UK) Complete channel and multiplex listings Main transmitter or relay status FOUR COUNTRIES SUPPORTED United Kingdom — Full Freeview transmitter database including main transmitters and relays, with aerial group information and all multiplexes (PSB1, PSB2, PSB3, COM4, COM5, COM6) Ireland — Complete Saorview network coverage with all transmitter sites France — TNT (Télévision Numérique Terrestre) transmitter locations across metropolitan France United States — ATSC broadcast stations covering all major markets and DMAs, with call signs for ABC, CBS, NBC, FOX, PBS, CW and local stations POSTCODE & ZIP CODE SEARCH Smart search understands UK postcodes, Irish Eircode routing keys, French postal codes, and US ZIP codes. The app automatically detects which country you're searching in and returns the right transmitters. DESIGNED FOR EVERYONE Whether you're a cord-cutter setting up your first over-the-air antenna, a caravanner looking for signal on the road, or a homeowner fine-tuning an existing rooftop aerial, Antennascope gives you the information you need in a clear, simple interface. Works in both portrait and landscape orientation on iPhone and iPad. Supports metric and imperial distance units. Note: Signal estimates are approximate and based on distance and transmitter power. Actual reception depends on terrain, buildings, weather conditions, and aerial equipment. Compass accuracy depends on device calibration. If your aerial is not easily accessible from ground level, please consider hiring a professional installer. Transmitter data sourced from official broadcast databases. No account or subscription required.