Bandwidth (317)

Displaying 'Bandwidth' tags 1 - 25 of 317 in total

Winter 2018 Camera Course Registration

Learn video surveillance and get certified. Save $50 on the course, ending this Thursday the 18th, plus get access to 2 class times - 'day' and 'night'. IPVM provides the best education, live online classes, recorded videos, personal help and ...

By Brian Rhodes - 1 day ago

Multicasting Surveillance Tutorial

(PRO Only)

Network bandwidth can be a concern for some surveillance systems. While improvements in video codecs, such as smart codecs for H.264 and H.265, have reduced bandwidth needs significantly, large systems still encounter issues with large amounts o...

By IPVM Team - 13 days ago

2018 IP Networking Book Released

(PRO Only)

The new IP Networking Book 2018 is a 228-page in-depth guide that teaches you how IT and telecom technologies impact modern security systems, notably updated and expanded since 2017. The book will give you the knowledge and the confidence to make...

By IPVM Team - 14 days ago

QoS for Video Surveillance

(PRO Only)

Along with VLANs, QoS is one of the most misunderstood topics in IP surveillance networks. Many purported "experts" claim it is required in any and all surveillance systems, but little clear guidance is given about why, leaving those new to the ...

By IPVM Team - 19 days ago

Hikvision NVR Load Testing

(PRO Only)

IPVM members recently debated Hikvision NVR's performance under load in Hikvision 30+ Cameras On NVR - Apps And Client Really Slow Down And CPU Usage Jumps - Any Other Experiences Or Tests? To see how Hikvision's NVRs and iVMS-4200 software handl...

By Ethan Ace - about 1 month ago

D-Link ONVIF Switch Tested

(PRO Only)

D-Link's surveillance switches claim to "enhance ease of use and streamline management" for network administrators, with simplified UIs and automatic discovery of ONVIF devices to show what cameras are connected along with key information such as ...

By John Scanlan - about 1 month ago

IP Camera Manufacturer Compression Comparison

(PRO Only)

Despite the use of standards-based video compression (H.264/H.265), our tests show that default image quality settings for different manufacturers vary widely, with no standards for terminology or scale used. This can result in two cameras with th...

By Ethan Ace - about 2 months ago

Camera Multi-Streaming Usage

(PRO Only)

IP cameras typically support multiple streams, allowing a single camera to transmit multiple streams at different resolutions, frame rates and even codecs. The most common use case for multi-streaming is for display purposes. For example, a clien...

By IPVM Team - about 2 months ago

CBR vs VBR vs MBR - Surveillance Streaming

(PRO Only)

How you stream video has a major impact on quality and bandwidth. And it is not simply CODEC choice (e.g., H.264 vs H.265). Regardless of the CODEC, one still needs to choose how the video stream handles changes in scene complexity. There are th...

By IPVM Team - about 2 months ago

Hikvision 4K IR PTZ Tested (DS-2DF8836IV-AELW)

(PRO Only)

The IR PTZ trend continues, now with 4K resolution, with Hikvision releasing its DS-2DF8836IVAEL-W camera, a 4K 1/1.9" PTZ model specifying 200m IR range and 36x zoom. We bought and tested this model to see how it performs in day and night scenes...

By Ethan Ace - 2 months ago

ZoneMinder Open Source Profile

(PRO Only)

The first, oldest and probably the best known open source VMS is ZoneMinder. But where has it gone and is it still relevant today in a world of $200 NVRs and various free VMS options? IPVM spoke with ZoneMinder's lead developer, Isaac Connor, ab...

By Brian Karas - 2 months ago

Smart Codec Usage Surges - 2017 Statistics

(PRO Only)

Smart codec usage has surged in 2017, new IPVM statistics show. Smart codecs are less than three years old, starting in 2015 with Axis. Now, smart codecs are widely offered by various manufacturers, for both H.264 and H.265, delivering 30 - 90% r...

By IPVM Team - 3 months ago

Avigilon H4 IR Mini Dome Camera Tested

(PRO Only)

Avigilon has released their successor to the aging Micro Dome, the H4 Mini Dome, claiming easy install, a patent-pending surface/recessed mounting system, Lightcatcher low light performance, true WDR and more. We bought this new model and teste...

By John Scanlan - 3 months ago

Axis 'Sold Out' P3707-PVE Multi-Imager Tested

(PRO Only)

Axis faced significant product shortages over the summer. Perhaps the most notorious and significantly sold out model was the Axis P3707-PE 8MP multi-imager, with stories from integrators circulating of various large orders of this model blocking...

By Ethan Ace - 3 months ago

Geovision GV-EDR2100 Tested Vs Hikvision

(PRO Only)

A number of ADI's top selling IP cameras are, at least surprisingly to us, from Geovision. We recently bought and tested the Geovision EDR2100 1080p IR minidome, which is priced below Hikvision and Dahua 1080p IR models. Inside, we share our r...

By John Scanlan - 3 months ago

Geovision 4MP Super Low Cost Turret Tested (EBD-4700)

(PRO Only)

~$100 cameras, even for 4MP, are now expected by many dealers, as price cuts and ongoing sales have set this expectation. At the same time, many dealers are looking for alternatives to Dahua and Hikvision, due to cybersecurity concerns, dealer sa...

By John Scanlan - 4 months ago

Integrator Camera Optimization Preferences

(PRO Only)

How do integrators make cameras 'better'? What settings or optimizations do they change? ~150 integrators told IPVM what they do. First, they answered: How often do you optimize camera image quality settings? In what scenarios or applicatio...

By Ethan Ace - 4 months ago

September IP Networking Course

LAST Chance - Registration is ending. Register now. This is the only networking course designed specifically for video surveillance professionals plus it includes live training, personal help and certification. What the IPVM IP Networking Course...

By Brian Rhodes - 4 months ago

Dedicated Vs Converged IP Video Networks Statistics

(PRO Only)

'Convergence' has been a major industry theme for many years. All organizations have IP networks today with laptops, tablets, phones and more running on them. But how many actual IP video surveillance systems are running on converged networks wit...

By Brian Karas - 4 months ago

Dahua 4K IR PTZ Tested

(PRO Only)

4K has made its way to IR PTZs. In this report, we examine the Dahua 6AE830VNI, a 4K PTZ with 30x optical zoom, 200m (~650') integrated IR, and 1/1.7" 4K sensor, to see how it performed in daytime and night time scenes. Note that this report is...

By Ethan Ace - 5 months ago

Sony Next Gen HD Dome Camera Tested (SNC-EM642R)

(PRO Only)

Sony has released their latest generation, claiming improved WDR and low light, increased IR range, and more. We tested the SNC-EM642R outdoor IR vandal dome to see how these new models stack up against the latest from others, including: Axis P...

By IPVM Team - 5 months ago

Cat 5e vs Cat 6 vs Cat 6a Network Cable Usage Statistics

(PRO Only)

Cat 5e? Cat 6? Cat 6a? What do integrators use in practice, today? 140+ integrators told IPVM. Here are the results: For those who want to learn more about the technology, see IPVM's Network Cabling for Video Surveillance Guide. Inside this ...

By IPVM Team - 5 months ago

IP Camera Specification / RFP Guide 2017

(PRO Only)

RFPs are hard. Do them 'right' and it takes a lot of knowledge and time. Do them 'wrong' and you can be (a) unwittingly locked into a specific vendor or (b) be forced to accept inferior quality products. This guide helps IP camera purchasers ...

By IPVM Team - 5 months ago

IR Surveillance Guide

(PRO Only)

Infrared (IR) has become an increasing core component to video surveillance systems. In particular, the expansion of integrated IR cameras that build IR illuminators within the camera has become common. On the positive side, this means that camer...

By IPVM Team - 6 months ago

H.265 / HEVC Codec Tutorial

(PRO Only)

For years, video surveillance professionals have talked about the potential for H.265. But now, H.265 is starting to gain mainstream adoption, with many manufacturers shipping cameras and some VMSes adding support. However, there are many issues ...

By IPVM Team - 7 months ago

Displaying 'Bandwidth' tags 1 - 25 of 317 in total