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Common Causes of Aerial and Signal Problems

TV aerial and Freeview signal faults can develop gradually or appear suddenly, often following bad weather, building work, or a change at the local transmitter. The most frequent causes include physical damage to the aerial or its mounting, water ingress into cable connectors, 4G and 5G interference from nearby mobile masts, and aerials no longer correctly specified for the transmitter group serving the postcode. A spectrum analyser measures actual signal strength and quality across every frequency, identifying the exact fault before any component is replaced.

Checks You Can Safely Make Before Calling an Engineer

• Run a full channel retune on your TV — some signal problems are caused by an outdated stored channel list
• Check that all coaxial cable connections are hand-tight at the TV, recorder, and any distribution point
• Look for any obvious physical damage to an external aerial or dish from ground level — do not climb on the roof
• Check whether neighbours on the same street are experiencing identical problems — a transmitter issue affects multiple households

When to Call a Professional Engineer

If signal problems persist after a retune and basic checks, or if the picture pixelates only in wet or windy weather, a professional signal test is the sensible next step. Everest Aerials engineers use calibrated spectrum analysers to test signal strength and quality across every Freeview multiplex, identifying the exact fault on the first visit and carrying out the repair the same day in the vast majority of cases. All common parts are carried on every van.

Guarantee and Pricing

Fault diagnosis and repair from £79. No call-out charge — the price is agreed before work begins. Up to 5-year workmanship guarantee on all aerial and satellite work. Same-day attendance in most of our 128+ coverage areas when you call before 2pm on weekdays or Saturdays. Call 0800 046 7879 (free from landlines and mobiles) or 07970 942 889.