function isUserLoggedIn() { global $loggedInUser; // Must exist AND must be an object if (!isset($loggedInUser) || !is_object($loggedInUser)) { return false; } // Must have the property if (!property_exists($loggedInUser, 'user_id')) { return false; } // Must be a valid user return ($loggedInUser->user_id > 0); }

Our Services - Analogue CCTV

Analogue CCTV is still widely used across Scotland, but the performance difference between older systems and modern HD‑over‑coax technology is enormous. If your CCTV looks like the equipment we were installing 15 years ago, it’s time to consider an upgrade. Clear, reliable footage is essential for identification, evidence, and insurance — and outdated systems simply can’t deliver it.



The comparison above shows the reality: a low‑grade DIY system on the left produces footage that is often too poor to identify anyone, and in many cases is inadmissible in court. A professionally-installed, high‑grade analogue system on the right provides the clarity and detail required when it matters most.

Many analogue systems installed years ago still “work”, but they no longer meet modern expectations. Cameras degrade, recorders fail, and older technology simply can’t capture the detail needed for evidence or identification. Even if your system is recording, it may not be protecting you.

Upgrading Using Your Existing Cabling

One of the biggest advantages of modern analogue CCTV is the ability to upgrade without replacing your cabling. If your existing coax is in good condition, we can take a system that was originally sub‑megapixel and upgrade it all the way to 1080p, 4MP, 5MP, or even full 4K — using the same cable runs.

This is possible thanks to modern HD‑over‑coax technologies such as HDCVI, HD‑TVI and AHD. HDCVI in particular was designed to push high‑resolution video over traditional coaxial cable, supporting:

  • 4K (8MP) analogue video over standard coax
  • Long‑distance transmission with minimal signal loss
  • Improved noise reduction and low‑light performance
  • Full compatibility with existing BNC cabling

In most cases, the cameras and recorder are the weak points — not the cabling. If the coax is in good condition, upgrading is straightforward, cost‑effective, and requires no disruption to walls, ceilings, or trunking.

Why Upgrading Matters

  • Massive jump in image quality — up to 4K
  • Better night vision and low‑light performance
  • Higher‑quality evidence for police and insurance
  • Cleaner, sharper recordings with modern compression
  • Lower cost than switching to full IP
  • Minimal disruption — reuse your existing coax

Upgrading analogue doesn’t mean starting again. With HDCVI and other HD‑over‑coax formats, we can transform an outdated system into a modern, high‑resolution CCTV setup without replacing your infrastructure.

Why Choose Tyger Security

  • Professional analogue HD and 4K upgrades
  • Honest advice — no unnecessary upselling
  • Clean cabling and tidy workmanship
  • Reliable, modern hardware from trusted manufacturers
  • Fast response across central Scotland

If your CCTV looks like it belongs in another decade, we can fix that — quickly, cleanly, and professionally. A modern analogue upgrade is one of the most cost‑effective ways to dramatically improve your security.