Mistake #1: Confusing High Resolution with High Definition.
The term “high resolution” is normally used in conjunction with analog systems with high TVL (TV lines), whereas the term “High Definition” is specific to systems that process the video digitally at either 720i, 720p, 1080i, or 1080p. The selection should be made based on the particular needs and the desired quality results.
Mistake #2: Believing that the outer appearance of the camera has a bearing on the quality or performance.
Some have the belief that the bigger a camera the better. What makes a better camera is not the size but the internal components.
Mistake #3: Failure to verify that a DVR can both record and display at real time.
For a DVR to be considered real time it has to be able to display, record, and playback at 30 frames per second per camera. Thus, a 4-channel DVR should be 120 FPS, an 8-channel 240 FPS, and a 16-channel 480 FPS. Anything less than that will make the display and playback video look robot-like.
Mistake #4: Hire an unlicensed contractor to perform the installation.
A licensed contractor has passed the requirement set by the state in which he/she is licensed for to perform the job at hand in a professional and safe way. Hiring an unlicensed contractor is not only illegal, but it could also be dangerous.
Mistake #5: Selecting the wrong display monitor/TV.
The selection of a monitor or TV to view the cameras should be based on the quality that the DVR and cameras can put out. Also, the correct output medium (HDMI, VGA, DVI) should be verified. Failure to do a good match will result in diminished video display quality.
Mistake #6: Failure to optimize the display and recording capabilities of the DVR.
Most DVR allow for configuration changes in order to be able to improve or decrease the quality of the video recordings. Failure to optimize the system based on the specific needs and desires of the user will result in poor performance.
Mistake #7: Failure to properly configure access from the Internet.
If a DVR allows for remote viewing from the internet, a proper, secure, configuration of the DVR and network should be performed in order to prevent unauthorized access to the camera system. Failure to do so will expose the system to easy hacking.
Mistake #8: Selecting the wrong wiring.
The location, distance to the DVR, and length of the cable, all have a bearing on the quality and performance of a camera. Selecting the wrong cabling will result in diminished performance.