DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN

No. 01/2013 (Jan. 1, 2013)

A new dimension of the Internet and more - a review of the year 2012.

In which direction is the market heading? What technologies are most likely to succeed? We present five, most important technological trends that have been discussed in our Newsletters and, according to us, will be growing in the next years.
1. Internet of Things - the nervous system of our planet
Internet of Things (IoT) is a vision in which everyday objects communicate with each other and the users via the Internet, infrared, and radio waves. Appropriately programmed devices and appliances will become "intelligent", eliminating many of the chores consuming our time - the fridge will organize shopping of food products, the air conditioning system will adjust to environmental conditions based on local weather data etc. The number of possible applications is infinite - the technology implemented "in the background" can penetrate all aspects of our material world. The IoT scope will be limited only by the imagination of the manufacturers.
According to Cisco, IoT was born in 2009, when the number of devices connected to the Internet became higher than the population of people living on Earth. However, the year 2012 initiated a new way of thinking about this potential, both in the case of industry and consumers.
2. Cloud computing
Cloud computing is a model of providing IT solutions and services via the Internet, where client computers have continuous access to resources and computing power of servers around the world. This functionality is defined as a service accessible via web software and the necessary infrastructure, giving the users "added value". This means no need for the users to purchase and manage the extensive versions of the software that should be normally installed on their workstations. The main advantages are cost savings associated with moving the computing power from client computers to the servers, the ease of access to services ("everywhere and on everything"), and improved safety.
3. Touch, gesture and voice control
Touch screen market is growing at a very fast pace, much faster than the market of standard screens. A large part of it make smartphones and tablets, the increasing popularity of touch control interface has been even noticed by Microsoft in its new operating system - Windows 8. The system fully supports modern laptops and tablets equipped with such screens.
Voice control also becomes a standard functionality of many electronic devices. The voice recognition software is constantly developed to improve "understanding". An example is the Siri software from Apple. Such programs are used not only in smartphones. At this year's CES, speech recognition functions were demonstrated in TVs, laptops and additional remote controls.
4. High-speed streaming
LTE/4G networks offer a revolutionary speed of mobile Internet (download rates up to 150 Mbps). This technology allows users ultra-fast access to websites with multimedia and games on the Internet. LTE and popular streaming applications enable them to watch video in a good quality on the go. There are available first smartphones equipped with LTE modems.
5. TV market is moving to the Internet
Streaming of television channels via the Internet instead of using dedicated broadcasting networks ensures openness and versatility - the programming can be received on all devices that allow access the Internet (computers, smartphones, televisions equipped with network cards). The year 2012 was quite revolutionary in this respect - almost every new television had network interface and offered access to video on demand and social networking sites. The introduction of the Internet to TVs is also popularizing such services like HbbTV (Hybrid TV) and "Second Screen" supplementing broadcast content with multimedia applications available on other devices (tablets, smartphones, laptops etc).
Will we observe rapid development of the trends in 2013? Or new ones will emerge, with equally great potential, which may affect the shape of the technology and media industries and even change our daily lives? In today's world we may be sure of that.

Video converter plus ... .

Analog CCTV system is often equipped with a number of additional devices. In this case, the equipment for fiber optic transmission has to provide additional functionality, aside from sending the video from security cameras. The examples of multipurpose devices are Ultimode video converters.
The ideal model for this type of systems is the Ultimode V-204DAO L2423 set. The pair can transmit 4 analog video channels, one-way RS-485 signal, audio and logic signals (0/1). Typical application of the L2423 set is shown in the figure below.
Fiber Optic Video Converter ULTIMODE V-204DAO (WDM, 4x video, 1x data, 1x audio, 1x alarm)Fiber Optic Video Converter ULTIMODE V-204DAO (WDM, 4x video, 1x data, 1x audio, 1x alarm)
Analog CCTV system using single-mode fiber for transmission of video, audio, RS-485 and alarm signals
4 video channels are transmitted along with audio and alarm signals from the transmitter (Tx) to the receiver (Rx), while the RS signal is transmitted in the opposite direction with the use of WDM technology. One single-mode fiber can be used over distances up to 20 km. Additionally, the RS signal can be sent from the transmitter (Tx) to several devices over distances up to1200 meters.

Cabling in MATV/SMATV/CATV systems - screening efficiency.

Coaxial cables are very important components of antenna systems. They have to effectively distribute the signals and protect them against external interferences, as well as from inter-channel crosstalk (multiswitch systems). A good coaxial cable should ensure low attenuation and high screening efficiency. The latter parameter is usually measured in the 47-862 MHz band and may differ a lot depending on the cable quality, from 45 dB to more than 120 dB. The highest values characterize high-quality RF cables of Triset series suitable for highly professional RF distribution systems (MATV/SMATV/CABLE TV).
Coaxial Cable (75 ohm): TRISET PROFI 120dB A++ 1.13/4.80/6.90 [100m]
Triset PROFI E1010 - screening efficiency of 120 dB in the return channel band,
which makes it ideal for CATV distribution systems offering digital services

Coaxial Cable (75 ohm): TRISET-113 1.13/4.8/6.8 [1m]
Triset-113 E1015 - screening efficiency of 100 dB;
for applications in individual and shared TV/SAT antenna systems
According to EN50117 norm, there are the following classes of coaxial cables, depending on screening efficiency: C, B, A, A+, A++. Screening efficiency measurements are made in accordance with the recommendations of EN 50289-1-6 document.
  30-1000 MHz 1000- 2000 MHz 2000 - 3000 MHz
Class A++ 105 dB 95 dB 85 dB
Class A+ 95 dB 85 dB 75 dB
Class A 85 dB 75 dB 65 dB
Class B 75 dB 65 dB 55 dB
Class C 75 dB 65 dB 55 dB
Classes of screening efficiency
according to EN50117-2 (minimum values)

Security cameras for underground parking lots.

Underground parking garages are places especially susceptible to acts of vandalism and theft. Video surveillance systems can prevent such events and increase the sense of security. Low ceilings and very uneven lighting with bright and dark areas pose a serious problem with the choice of the cameras. Due to the low height of installation, the cameras should be secured from tampering and attempts to destroy - the examples of such devices are vandal-proof ceiling cameras M10775 and M10780. They are characterized by high resolution and image quality necessary for capturing a lot of detail. Their varifocal lenses allow the installer to adjust the field of view from a wide scene to a narrow area, depending on the needs.
Vandal-proof Dome Camera: SN-FXP59/30UIR (650 TVL, Sony Effio-E, D-WDR, 0.03 lx, 2.8-10mm, IR up to 20m) Vandal-proof Dome Camera: SN-FXP59/30UIR (650 TVL, Sony Effio-E, D-WDR, 0.03 lx, 2.8-10mm, IR up to 20m) Vandal-proof Dome Camera: SN-FXP59/30UIR (650 TVL, Sony Effio-E, D-WDR, 0.03 lx, 2.8-10mm, IR up to 20m) Vandal-proof Dome Camera: SN-FXP59/30UIR (650 TVL, Sony Effio-E, D-WDR, 0.03 lx, 2.8-10mm, IR up to 20m) Vandal-proof Dome Camera: SN-FXP59/50UDR (650 TVL, Sony Effio-P, ICR, 0.03 lx, 2.8-10mm, IR up to 20m) Vandal-proof Dome Camera: SN-FXP59/50UDR (650 TVL, Sony Effio-P, ICR, 0.03 lx, 2.8-10mm, IR up to 20m)
A monitoring system in an underground parking garage based on M10775 and M10780 cameras
The video from the camera at the entrance to a parking lot is being increasingly used to identify the registration numbers of the cars entering/leaving the site. For this purpose it is necessary to use a camera with Back Light Compensation (BLC), and Wide Dynamic Range (WDR). The Sunell SN-FXP59/50UDR M10780 camera has the both functions.

How to build a low-cost IP CCTV system?

An economical IP video surveillance system can be based on megapixel IP cameras from Sunell. Thanks to the ability to save surveillance data on remote FTP servers (such services are offered by hosting companies), there is no need for buying and maintaining an NVR operating on 24/7 basis. The camera can be directly connected by entering login, password, IP address and port number for FTP connection, so the only additional device is a router with Internet access.
2MP IP Dome Camera: Sunell SN-IPV54/12UDR (Aptina 1080p CMOS, ONVIF, OUTDOOR vandal-proof)ADSL Router w. 4-port Switch & 802.11n AP: TP-Link TD-W8960N
The architecture of economical IP CCTV system with video recording on a remote server
In order to ensure good image quality, each camera needs at least 1 Mbps upload bandwidth. The files saved on the FTP server can be played back on a computer running application software provided with the cameras or using a typical video player. Live monitoring is available by logging in directly to the camera from any Web browser or on a smartphone running InView application. Local wireless transmission to a laptop on site is safe thanks to the N2904 access point using WPA-/WPA2-PSK, WPA-/WPA2-AES or WEP encryption.
The recording of the surveillance data on a remote server is not only economical and convenient, but also safe. In the case of a robbery etc. the recorded data cannot be destroyed or stolen, because it is not physically on site.

How to select the best WiFi router?

The necessary feature of a router for a specific application is the availability of the suitable operating mode. When the Internet service provider offers wireless access, the device has to work in WISP mode. In addition, the user should know the maximum transfer rate of the access point and preferably choose the same wireless standard. Especially in the case of video streaming, the best choice is application of devices compliant with the N standard (WiFi speed up to 300 Mbps).

The table can make the choice easier:
Name TL-WR1043ND TL-WR743ND TL-WR740N
Code N3253 N2956 N3252
Transmission range
Wi-Fi standard
802.11 n/g/b 802.11 n/g/b 802.11 n/g/b
Max. transfer rate (Wi-Fi) 300 Mbps 150 Mbps 150 Mbps
3x 4 dBi 1x 4 dBi 1x 4 dBi
Detachable antenna(s)
Yes Yes No
MIMO scheme
3T3R - -
Tx output power
<100 mW <100 mW <100 mW
Number of LAN ports 4 4 4
QSS Yes Yes Yes
WISP No Yes No
USB Yes No No
WiFi security


New products offered by DIPOL:
Outdoor Compact Camera: n-cam 570 (650TVL, Sony Effio-E, 0.03 lx, 2.8-12mm, OSD, Day/Night, IR up to 40m)
TERRA TDX-311C (8PSK+QPSK CI receiver / DVB-T@COFDM modulator - for MMH-3000)
IP Watchdog Signal (2 channels)
Outdoor compact camera
n-cam 570

(2 channels)
Signal N3412
Worth reading:
Arranging optical fibers in RACK panels. Optical enclosures are used in FTTX networks as distribution panels and frames. An important feature that should be addressed when selecting fiber optic boxes/panels is the possibility of convenient arrangement of fiber in splice trays and easy access to all components for maintenance purposes... more
19-inch ULTIMODE MT-548 L5148 box with ULTIMODE P-48SC L5542 front panel, with L4213 adapters.
The tray carries ULTIMODE L5550 mechanical splices connecting L3551 single-mode pigtails.
Antenna and CCTV system in a single-family home with 4 TV/SAT outlets and security camera. Radial Signal multiswitches provide economical, fully professional solutions for small SMATV systems in one-family homes, little apartment houses etc. The cable segments can reach 60-70 meters, which is usually sufficient in such houses, with several to up to 16 outlets. The output levels are 101 dBμV (SAT TV) and 85 dBμV (terrestrial TV)... more
Simple satellite and CCTV system in a one-family house
(a PVR receiver in the living room can use two independent sat signals)
Emergency power supply for CCTV systems. Emergency power supply for a CCTV DVR can be provided by the use of a UPS or buffer power supply. Due to the double conversion (typically from 12 VDC to 230 VAC and vice versa - in the power supply of the DVR), a UPS can backup the system for a shorter time than a buffer power supply with a similar rechargeable battery... more
Example configuration of a small CCTV system with the buffer power supply Pulsar PSUPS10A12 M1874
Mobile Sat Dish: Camping 35 (offset)