4G Filter Aerial Installation: Why You Need It in 2026
Is your TV picture pixelating or freezing? 4G interference could be the culprit. Learn why 4G filters are essential in 2026 and when you need one.
What Is a 4G Filter for TV Aerials?
A 4G filter is a small device fitted to your TV aerial that blocks 4G mobile signals while allowing TV signals through. It solves a growing problem: 4G interference.
The Problem:
In 2024-2026, UK mobile networks rolled out 4G on the 800MHz band - the same frequency used by some TV channels. This creates interference that damages your reception.
Signs Your TV Has 4G Interference
Pixelation appearing randomly (not during bad weather)
Picture freezing/buffering on specific channels
Channels disappearing during certain times of day
Worse reception on channels in lower frequencies (ITV, Channel 4)
Issue started after 4G rollout in your area
If you notice any of these symptoms, you likely have 4G interference. Call us on 0800 316 8269 for a FREE signal test.
Why 4G Interferes With TV
How 4G Interference Works:
- 4G transmitters are very powerful (much stronger than TV signals)
- They broadcast on similar frequencies to TV channels (especially lower channels)
- Your aerial picks up both TV and 4G signals mixed together
- Your TV box can't separate them, causing pixelation/freezing
Which Channels Are Most Affected?
ITV (Channel 3), Channel 4, and Channel 5 are most affected because they broadcast on lower frequencies vulnerable to 4G.
4G Filter Costs & Installation
Most 4G filter installations take 30-45 minutes. We test your signal before and after to confirm improvement.
How a 4G Filter Works
A 4G filter sits between your aerial and TV box. It uses a technique called "notch filtering" to:
- ✓ Block 4G signals (800MHz) entering the system
- ✓ Allow TV signals (400-800MHz) through unaffected
- ✓ Provide passive filtering (no power needed)
- ✓ Have zero maintenance required
Do You Always Need a 4G Filter?
Short Answer: Not always, but increasingly yes.
You Probably DON'T Need One:
- You have an excellent TV signal with no pixelation
- You're far from major 4G transmitters (rural areas)
- Your TV box is modern (2020+) with good filtering built-in
You DEFINITELY Need One If:
- You have pixelation/freezing on ITV, Channel 4, or Channel 5
- Your area has recently upgraded to 4G (2024-2026)
- Multiple channels have issues (not just one faulty TV box)
- Problem appears randomly throughout the day
4G Filter vs Other Solutions
| Solution | Cost | Effectiveness | Best For |
|---|---|---|---|
| 4G Filter | £49-79 | 90%+ (if 4G is cause) | Confirmed 4G interference |
| New Aerial Installation | £89-149 | 70% (relocate away from signal) | Weak signal + 4G interference |
| Signal Booster/Amplifier | £35-79 | 40-60% (amplifies interference too) | Only weak signal (not 4G) |
| Combiner System | £150-250 | 95%+ (dual-aerial system) | Severe 4G interference |
Our Recommendation for Bedford Residents
Step 1: Get a FREE signal test (we'll identify if it's 4G interference)
Step 2: If it's 4G, install a filter for £49-79
Step 3: If the filter doesn't solve it completely, we'll recommend a combiner system or new aerial positioning.
Related Services
Free 4G Interference Test
Experiencing pixelation or freezing? Get a FREE diagnostic test. We'll tell you exactly what's causing it and the best fix.
Call: 0800 316 8269