The event is aimed at specialists - including a relatively narrow section of the telecommunications market it does not belong to the greatest shows in terms of numbers of exhibitors and visitors.
This year, however, the fair was quite unique. While the flagship trade fair in IT and telecommunications - CeBIT in Hannover - saw a decline in the number of exhibitors and visitors, Anga Cable Show held in Cologne between May 3 and 5 observed a surprising increase in both numbers. The number of visitors increased by about 10% (15000), and the number of exhibitors - approximately 5% (395 stands).
Why did it happen?
The public interest in the transmission and reception of programs in the second-generation standards is enormous, because they are designed to convey high-definition video - HDTV. In the field of HDTV, the European market is lagging behind American and Asiatic markets, so the natural attempt to catch up with the global competitors. The new standards require the preparation of new receivers, so it was the first reason for the increased interest in fair offers.
Another new technology is 3D TV. Strong consumer interest in 3D imaging promotes rapid expansion in this area. At the fair, Astra satellite operator in cooperation with Samsung presented a three-dimensional satellite channel - Demo3D (23.5E). Preparing equipment for the reception and distribution of signals in 3D technology is therefore the next challenge in this field.
Many experts believe that we face a fundamental change in the way of television broadcasting. In this respect, a great future is forecast for IPTV. Distributed in computer networks, having greater capacity to implement interactive services (choice of content, shopping opportunities, etc.), IP television was the next reason for the optimism at Anga Cable 2010.
During the conference, the participants discussed the perspectives of DOCSIS 3.0 allowing cable television networks to transfer data to each subscriber at speeds over 100 Mb/s. Such transfers enable efficient transmission of multimedia and allow to build cable television systems suitable for providing high quality Triple Play services (television, telephony, Internet). The TV channels can be available in IP version.
However, there are situations when it is necessary to place antennas on such buildings. What then? - It helps the art of camouflage. Below - WLAN antennas on the building of a church.
We invite you to take part in the "Engagingly about antennas" contest. The works for the 9th edition can be submitted from June 1st.
However, DIPOL has marked a certain group of antennas as "DVB-T". What is the reason?
Analog terrestrial signals are broadcast at frequencies up to 782-790 MHz (channel 60). Therefore, the most installed UHF antennas have been designed to work within the range of 21 to 60 ch.
DVB-T broadcasting can use channels up to 69, so the need for antennas working in the entire UHF band - from 21 to 69 channel.
DIPOL offers two high quality compact DVB antennas equipped with low-noise amplifiers powered with 5 VDC (directly from the DVB-T receiver or with the included AC/DC adapter and DC injector).
- signal level measured at the amplifier input is 75 dBuV,
- the gain of ZG amplifier is set to 45 dB, thus the output level is 120 dB.
The output level of the amplifiers cannot exceed the maximum rated values - in the case of ZG channel amplifiers it is as much as 123.5 dBuV. But, having input level, say, 75 dBuV, it is not allowed to set the maximum gain (53 dB) which (128 dB) would far exceed the rated maximum output level.
The 6-way R60106 splitter provides signals via TRISET-11 cables to individual vertical runs. The attenuation of TRISET-113 E1015_100 and TRISET-11 E1025_100 cables has been calculated based on their rated parameters.
After installation, it is necessary to check signal levels in the outlets using a signal meter whether they are within the calculated values. According to the standards for television signals, the level at the subscriber outlet should be between 62 and 80 dBuV.
For signal level measurements we can recommend the TM-3000 R10502 meter.
Antenna outlet >>>
Length of TRISET-11 cable [m]
Length of TRISET-113 cable [m]
Attenuation of TRISET-11 cable
Attenuation of TRISET-113 cable
Attenuation of R-6 splitter
Attenuation of O-X-1 tap
Attenuation of O-X-2 tap
Attenuation of O-X-3 tap
Attenuation of outlet
Reserve (e.g. for attenuation of connectors )
Total attenuation of the distribution network (round figures)
Outlet signal level (120 dB at amplifier output)
In indoor applications directional illuminators usually do not ensure homogeneous lighting of the whole room (office room, factory floor, store etc).
The Redbeam 360-degree infrared LED dome illuminators are based on a new generation of LED arrays that won Gold Medal at SECUREX trade fair. The dome illuminators are normally mounted on ceilings. Instead of the range, it is better to describe their capacity by the maximum floor area that can be effectively illuminated. In the case of Readbeam series - it is 60 m2 ( M1642 ) or 120 m2 ( M1643 ).
Below there is a comparison of two illuminators operating in a room having floor area of 40 m2. On the left - the room lit by Redbeam IRD120 M1643, on the right - by a popular illuminator with standard IR LEDs.
On the right side - use of a popular illuminator with standard IR LEDs.
Just click on the picture to get more information.
On the facade of the building there are two outdoor cameras V-CAM 315 M11277 that allow to monitor the nearby area day and night (due to built-in IR illuminators). The video signals from these two cameras have been put into the building via coaxial cables.
The use of the wireless transmitters has the additional advantage that allows for easy change of camera locations - it is much easier than in the case of a wired installation.
In practice, this means that Fast Ethernet connection can convey video streams from up to 16 cameras. What to do in the case of larger installations? The first solution is to install Gigabit Ethernet network, but in many locations it may be difficult or even practically impossible.
But, since most of today's IP cameras are equipped with the ability to generate at least two configurable streams, the easiest solution is to build a system with local recording of full-resolution images from the key cameras and using lower transmission parameters in the case of the rest of the cameras as well as utilizing the secondary streams with lower parameters for live monitoring from the key cameras - with lower-resolution images or/and lower frame rates.
- access the Internet via ADSL service, using TP-LINK TD-8816 N2906,
- create local network based on wireless router with built-in switch (TL-WR740N N3252 ),
- access the printer from any computer on the network - through the L-PS310U N3312 device,
- extend the rage of Wi-Fi network using the "AP with WDS Mode" function,
Antenna outlets for PVR Twin receivers in multiswitch systems. Twin receivers can receive two different satellite broadcasts, so they need two independent satellite signals connected via two cables (e.g. TRISET-113 E1015). The R694140 outlet allows to feed two satellite signals...
Building blocks of the network - SFP transceivers. FTTH solutions should ensure flexibility for possible future changes, usually extensions of the system due to growing number of subscribers. In such situations the best hardware solutions are provided by media converters with SFP slots allowing to use a variety of SFP modules/transceivers. An example is the media converter ULTIMODE M-100G/SFP L1301 with SFP slot...
Index of published issues
Birmingham defines "Security Industry". Gold Medal for DIPOL and Redbeam illuminators. Antenna monument in...