Bandwidth (338)

Displaying 'Bandwidth' tags 1 - 25 of 338 in total

Testing Bandwidth Vs. Low Light

(PRO Only)

Nighttime bandwidth spikes are a major concern in video surveillance. Many calculate bandwidth as a single 24/7 number, but bit rates vary dramatically from day to night. But how much? 100% more? 500%? 1,000%? To find out we tested cameras from...

By Ethan Ace - about 4 hours ago

Winter 2019 IP Networking Course

Today is the last day to register for the Winter 2019 IP Networking course. This is the only networking course designed specifically for video surveillance professionals.  Lots of network training exists but none of it really explains how it r...

By John Scanlan - 6 days ago

Managed Video Services UL 827B Examined

(PRO Only)

Historically, UL listings for central stations have been important, with UL 827 having widespread support. However, few central stations have adopted UL 827B, the companion listing for managed video, which debuted in 2015. In this note, based ...

By Dan Gelinas - 7 days ago

H.265 / HEVC Codec Tutorial

(PRO Only)

H.265 support improved significantly in 2018, with H.265 camera/VMS compatibility increased compared to only a year ago, and most manufacturers shipping H.265 models.  However, there are still challenges impacting H.265's competitiveness and comp...

By IPVM Team - 8 days ago

Surveillance Codec Guide

(PRO Only)

Codecs are core to surveillance, with names like H.264, H.265, and MJPEG commonly cited. How do they work? Why should you use them? What issues may you face? In this tutorial, we examine this in-depth covering: Uncompressed vs. Compressed Video...

By IPVM Team - 13 days ago

Camera Course January 2019

This is the only independent surveillance camera course, based on in-depth product and technology testing. Lots of manufacturer training exists but none of it teaches the underlying technologies and tradeoffs of current camera technology includin...

By Brian Rhodes - 13 days ago

8MP / 4K Fixed Lens Camera Shootout - Dahua, Hikvision, TVT, Uniview

(PRO Only)

8MP / 4K fixed lens models are now common in lower cost lines, with nearly every Chinese brand and their OEMs now offering multiple options. To see which fixed lens 8MP/4K models performed best and how they compare to new generation 4MP models, w...

By IPVM Team - about 1 month ago

Ubiquiti $79 Flex IP Camera Tested

(PRO Only)

U.S. Manufacturer Ubiquiti has released a 1080p, integrated IR IP camera, selling it directly for $79, making this one of the least expensive IP cameras available. We bought and tested the Flex vs the Axis Companion Mini L, Hanwha LND-6011R, and ...

By Rob Kilpatrick - about 1 month ago

Hanwha L Series Lowest-Cost Camera Tested

(PRO Only)

Hanwha has released their lowest-priced IP camera line ever, the L series, that competes on price with low cost competitors Dahua and Hikvision. We bought and tested the lowest cost L series model, the LND-6011R indoor dome camera, to see how it ...

By IPVM Team - about 1 month ago

Dahua Dual Imager Dome Camera Tested (HDBW4231FN-E2-M)

(PRO Only)

Dahua has introduced a dual-imager dome model, the HDBW4231FN-E2-M, with two independently positionable sensors including integrated IR, not found on competitive dual-imager cameras. To see how this new model performs in real world scenes, we b...

By Rob Kilpatrick - 2 months ago

Cloud Video Storage Usage 2018

(PRO Only)

Storing email and documents in the cloud have long been common, with on-site email or file servers increasingly eliminated. However, what about video surveillance? What percentage of new video surveillance deployments are integrators using cloud ...

By IPVM Team - 3 months ago

Video Quality / Compression Tutorial

(PRO Only)

While CODECs, like H.264, H.265, and MJPEG, get a lot of attention, a camera's 'quality' or compression setting has a big impact on overall quality. In this training, we explain what this level is, what options you have and how you should optimize...

By IPVM Team - 3 months ago

Axis 4K vs. 5MP Camera Shootout (Q3518-LVE + Q3517-LVE)

(PRO Only)

Axis has released the 4K counterpart to their 5MP Q3517-LVE (see our test). Axis claims of both these cameras: Simply put, AXIS Q3518(17)-LVE delivers the best video quality possible. But which one is truly best? We bought and tested the...

By Ethan Ace - 3 months ago

SNMP / Network Monitoring For Surveillance

(PRO Only)

Surveillance systems typically rely on the the VMS to report issues, but this most often just means knowing a camera is "down" with no warning or detailed information. Network monitoring systems can give users more insight into their network, fro...

By IPVM Team - 5 months ago

Eagle Eye Networks Cloud VMS Tested

(PRO Only)

Eagle Eye has become one of the most significant players in the industry in the past few years: Eagle Eye's Owner Acquired Brivo Eagle Eye Acquired CameraManager From Panasonic Hired Ex-ADT Exec As Eagle Eye President Eagle Eye Boasts Big ...

By Sean Patton - 6 months ago

Powerline Networking For Video Surveillance Advocated By Comtrend

(PRO Only)

Powerline networking, using existing electrical wiring, has been around for many years. Indeed, over the years, some video surveillance providers have offered it as an alternative to coax, category cable and wireless. However, it has never really ...

By Brian Rhodes - 7 months ago

VMS Server Sizing

(PRO Only)

Specifying the right sized PC/server for VMS software is one of the most important yet difficult decisions in IP video surveillance. In the past manufacturers designed and certified that a specific appliance 'box' would support a specific number o...

By Sean Patton - 8 months ago

Axis 12MP Stereographic Camera Tested (M3058-LVE)

(PRO Only)

Axis has released the M3058-PLVE, a 12MP sensor, stereographic panoramic camera and Axis' first with integrated IR claiming images "sharp to the edges", "automatically adaptable" OptimizedIR, and more. To see how these claims perform in the real ...

By Ethan Ace - 8 months ago

IP Network Hardware for Surveillance Guide

(PRO Only)

Video surveillance systems depend on IP networking equipment. In this guide, we explain the key pieces of equipment and features, explaining where and why they are typically used. The topics covered include: Fast / Gigabit / 10 Gigabit Ethern...

By IPVM Team - 9 months ago

Hikvision DarkfighterX Vs Darkfighter PTZ Tested

(PRO Only)

Hikvision has focused on improving low-light performance for PTZs, an area that has traditionally been a problem, even more so than fixed cameras, due to the challenges of higher F stops and long-range varifocal lenses of PTZs. Two of Hikvision...

By Ethan Ace - 9 months ago

Wireless Networking For Video Surveillance Guide

(PRO Only)

Wireless networking is a niche in video surveillance applications, but it can be a difficult one to understand with proper wireless design, equipment selection, interference, and other factors impacting it usage. In this guide, we break down the ...

By IPVM Team - 10 months ago

Cellular (4G / LTE / 5G) For Video Surveillance Guide

(PRO Only)

In this report, we explain using cellular for video surveillance including: 4G vs LTE vs 5G 4G standards 5G future Advantage: Placing cameras "anywhere" Advantage: Quick deployment Disadvantage: Recurring costs Disadvantage: Bandwidth cap...

By IPVM Team - 11 months ago

Hikvision 6MP Camera Tested (DS-2CD4565-IZH)

(PRO Only)

In the next installment of our ongoing testing of 5MP/6MP cameras, we test the Hikvision DS-2CD4565F-IZH, a 'Smart Series' vandal dome combining higher resolution, a larger 1/1.8" imager and integrated IR. We bought and tested the 4565 to see h...

By John Scanlan - 11 months ago

Displaying 'Bandwidth' tags 1 - 25 of 338 in total