Until recently most cameras have been of the analogue type, producing good quality images at an affordable price. However, the introduction of Digital Signal Processing (DSP) has increased both the flexibility of using security cameras whilst enhancing the quality of the colour images produced.

Digi Security are able to offer a wide range of digital recording options from the Dedicated Micros system for the larger professional systems to the AV Tech unit for smaller businesses on a budget.

Even at the most basic level digital video images are superior to video recorded on analogue systems. Sharp, crisp images are stored which can be replayed over and over again without image deterioration. Yet another advantage of digital systems is their flexibility of recording modes. Recording can be done by schedule (i.e. time or date), alarm activation or via smart motion detection.

Advantages of Digital CCTV

•	Faster Retrieval Times – No more plodding through hours of videotape. Utilising digital CCTV, users can instantly retrieve video- even for remote viewing. Users can rapidly search events by time, date, location and camera
•	Archiving - Important information can be archived to FDD, HDD, CD-R or DVD for later retrieval, months or years down the line
•	No Tapes- With analogue systems tapes need to be replaced on average every 3 months, whereas digital storage media has an almost unlimited lifetime
•	Transmit and Receive Stored Data – Across town or across the world, video images can be remotely viewed, easily saved, retrieved, displayed, copied, printed, faxed and emailed
•	Less storage space required – Users may set the system to record when motion or other predefined events are detected so theres no wasted “dead taping”. Video is then compressed and efficiently stored to a PC’s hard drive
•	Higher image quality – Digital CCTV provides unbeatable quality. Digital video can be easily enhanced and copied over and over without losing its original quality
•	Immune to noise – Digital systems are less affected by noise than an analogue system
•	Better quality – a recent study determined that in systems using analogue technology, only 1% of recorded data was usable. With digital systems, a whopping 50% of recorded data was utilised in the apprehension process due to better indexing and retrieval
•	Less Obsolescence – Because most systems feature software which can be upgraded, your CCTV system’s lifetime can be extended