HD over Coax (Analogue) CCTV Cameras
Analogue CCTV cameras (also called HD over Coax Cameras) send high definition video, up to 8MP 4K, down the same coax cable that older analogue CCTV used. If you already have a coax system, you can usually swap the cameras and DVR and keep your existing cables.
Most are HD-TVI cameras, and many are 4-in-1, meaning they can be switched to work with AHD and CVI recorders too. Check the product page, as some only offer full resolution in TVI mode.
What you'll need alongside the cameras
A DVR: HD over coax cameras need a DVR that supports their resolution. An old analogue recorder won't show an HD picture.
Power: most cameras need a 12V supply at each camera, or a multi-way power supply at the recorder end. Power over Coax (PoC) cameras get their power down the coax instead, but only when connected to a PoC DVR.
Cable: RG59 coax with a power pair (often called shotgun cable). If you'd rather run network cable, Cat5 baluns let you use Cat5e or Cat6 instead.
Want it all matched up for you? Our HD over coax systems come as complete kits.
Upgrading an old analogue system
Existing coax is usually fine for 2MP and 5MP cameras. For 4K, or on very long runs, old or poor quality cable can cause interference lines or a picture that cuts out, so test one camera on your longest run before replacing the lot.
HD over coax or IP?
HD over coax is usually cheaper and handles longer cable runs without extra equipment. IP cameras go higher in resolution and have more of the smart detection features. If you're starting from scratch with no cables in place, IP is generally the better choice. Our CCTV buyers guide goes into more detail.
