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DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN
No. 31/2013 (Sept. 30, 2013)
Cell phone - modify or discard? The technical and technological progress constantly drives the mobile market. Cell phones are quickly becoming obsolete due to insufficient processing power, short operating time per battery charge etc, or simply they get damaged and are uneconomical to repair. So, why not to build a phone out of elements that, if necessary, can be replaced? This fantastic concept - Phoneblocks - is popularized by Dave Hakkens. The Danish designer came up with the idea of ​​a mobile phone divided into multiple blocks that could be freely configured and replaced.
Broadband TV antenna (logarithmic-periodic-dipole): MLOG 6-60
Broadband TV antenna (logarithmic-periodic-dipole): MLOG 6-60
Phoneblocks - the phone built with electronic "blocks".
The only non-replaceable part of the phone is to be specially designed motherboard.
If any part of the phone breaks down or gets old, it can be replaced without having to change the entire phone. Phoneblocks allows for flexible configuration of the blocks, for example, the user can maximize the battery at the cost of the camera or Bluetooth module, or install a better camera, processor, display... . The idea must therefore satisfy those who want to be in possession of all the latest and best components, as well as those who expect from the phone only specific functionality.
Video presentation of the "Phoneblocks" concept
However, the Phoneblocks concept, though beautiful, may be impossible to implement. Today's phones are real technological masterpieces. To accommodate all the components in a slim device, the designers employed by the electronic giants are spending countless hours, days, and months. A lot of time takes the development of the software managing all the hardware components. Effective communication between the different parts is possible due to proprietary solutions tailored for individual product lines. For example, it's hard to imagine a simple connector capable of both transferring data between the CPU and RAM and supplying power from the battery to every component, as shown in the vision of the Danish designer.
However, technical problems are not everything. The road to the success of the idea may be blocked by large corporations that make profits from the cyclical changes of the phones by the customers. The production of a modular phone requires large investments, and the originator does not want funding from big corporations. Dave Hakkens managed to gain support from many people, it is visible e.g. on the Thunderclap platform created to promote innovative projects. Does the idea has any chance of success? If not entirely, it might become a stimulus for the development of new products by companies that have the potential for undertaking new and ambitious ventures. That we wish the author.
Engagingly about Antennas - 12th DIPOL's Summer Holiday Contest 2013. September 30 is the last day of this year's edition of the contest.
The summary of the contest and the list of winners of the competition will be published in the issue of October 14.
Engagingly about Antennas - 12th DIPOL's Summer Holiday Contest 2013
Engagingly about Antennas - 12th DIPOL's Summer Holiday Contest 2013
Engagingly about Antennas - 12th DIPOL's Summer Holiday Contest 2013
Closer to the world
Anna Siatecka
A little more to the left
Michal Gawryluk
In another way
Tomasz Wanat
OM3 fibers. Although single-mode fibers are cheaper than multimode ones, the lower price of multimode active devices makes this kind of solutions still very popular in the market. New standards of multimode fibers (OMx) ensure increasing performance of the optical medium. Currently, multimode fibers compliant with OM3 standard are replacing the older OM2.
OM3 patch cords and pigtails are made in a distinctive azure color
The multimode fibers used in the cables are OM3 50/125 and can be used for transmission in the I or II transmission window (850/1310 nm). The attenuation (IL) does not exceed 3.5 dB/km in the first transmission window, and 1.5 dB/km in the second transmission window. OM3 standard provides higher data throughput over greater distances than its predecessors. The transmission speed of 10 Gbps is possible at distances up to 550 m, and higher speeds, such as 40 Gbps and 100 Gbps can be reached at distances up to 150 meters (OM1 and OM2 standards do not allow for such fast rates).
A comparison of multimode fiber standards in terms of transmission capabilities (max range of transmission at a specified data rate) is shown in the table below.
Data rate /Standard100 M1 G10 G40 G100 G
OM12000 m275 m33 m--
OM22000 m550 m82 m--
OM32000 m550 m300 m150 m150 m
SMATV multiswitch system for 198 subscribers. A building with five staicases at the housing development Wislane Tarasy (Vistula Terraces) in Krakow has been equipped by GKJ SYSTEM with multiswitch installation for 198 apartments. The SMATV system provides each outlet with DVB-T and FM broadcasts plus DVB-S/S2 signals from HotBird 13.0E. The system has been based on TERRA multiswitches with bus topology.
Broadband TV antenna (logarithmic-periodic-dipole): MLOG 6-60
The system for 198 subscribers in the 5-staircase building employs five antenna sets. Each antenna set consists of DVB-T antenna ATX-91 A3710, FM antenna Dipol 1RUZ B A0210, 100 cm satellite dish and QUATRO LNB Inverto Red Extended A98257. All the antennas are mounted on 3-meter steel masts E903830 attached to ventilation stacks with OMP-50L40 E8552 antenna wall brackets. The signals from the antenna sets are carried to the system components located in the building by Triset-113 PE E1017_100 cables.
Broadband TV antenna (logarithmic-periodic-dipole): MLOG 6-60
Broadband TV antenna (logarithmic-periodic-dipole): MLOG 6-60
The picture on the left shows SAT/TV TAP SS-520 R70518 and MSV-516 R70716 multiswitch distributing FM + DVB-T + DVB-S/S2 signals to 16 outlets, placed in TPR-7 R90561 metal box with dimensions of 500x500x200 mm. The picture on the right demonstrates MSV-524 R70724 multiswitch located in TPR-21 R90562 box.
The system is powered from SA 501 R70501 amplifiers located in each staircase, via H lines. In order to ensure comprehensive protection of the SMATV system against lightning surges, the lines from antennas are connected via TV-Sat surge protectors SIGNAL R48602. The indoor distribution system uses Triset-113 E1015_500 cable.
There have been also used compression F-connectors Platinum E80274 and PCT E80340. Additionally, the building has been equipped with cable TV distribution system (UPC) made with Triset-113 E1015_500 cable.
New cameras with Super Flux IR LEDs. Super Flux LEDs are characterized by a high intensity of the light beam. They have a square cross-section and 4 pins. This construction provides high resistance to shock and vibration, so they are often used in modern automotive lighting.
Super Flux LEDs are available in versions that differ in the lens shape, which directly translates into viewing angle.
3 mm Super Flux LED
5 mm Super Flux LED
Flat Super Flux LED
This modern type of LEDs has low power consumption (20 mA per diode), high reliability and long range. The LEDs can be arranged in such a way that the whole scene is well lit, even with the widest viewing angle. It's the reason that Sunell company has put them in dome and compact cameras.
Ceiling Dome Camera CAM 082 (420TVL, Sharp, 0.5 lx, 3.6mm)
Ceiling Dome Camera CAM 082 (420TVL, Sharp, 0.5 lx, 3.6mm)
Ceiling Dome Camera CAM 082 (420TVL, Sharp, 0.5 lx, 3.6mm)
Sunell IRC59/30ALDN
IR range up to30 m
Sunell IRC59/21AP
IR range up to30 m
Sunell IRC59/21AKDN
IR range up to 50 m
The new, high quality cameras from Sunell have modern look and ensure increased reliability. The series with Super Flux LEDs includes IRC59/30ALDN M10782, IRC59/21AKDN M11286, IRC59/21AP M11289. They all are very sensitive (0.01 lx in B/W mode) and provide high-resolution video (700 TVL in B/W mode). Additionally, the vandal-proof cameras (IK5 rating) have IP66 protection level.
Why choose Ultimax DVRs? High frame rates of the recorded video and the possibility of using spacious hard drives are the main reasons for using Ultimax DVRs in modern video surveillance systems. But installers also take into consideration very thoughtful menu and a multitude of features not found in solutions from other manufacturers:
  • Synchronous playback of all channels - 4, 8 or 16 channels depending on the model
  • Shortcuts in OSD menu - OSD buttons showing after clicking on individual camera/channel allow for direct control of its functions such as manual recording, playback, video settings
  • Instantaneous playback - quick start of the playback of the footage from the last 5 minutes, there is no need to enter the menu, select the camera, playing time, etc.
  • Digital zoom - should be limited to a reasonable proportion
  • Increased recording parameters for alarm events
  • Holiday recording schedule - up to 32 periods without recording - e.g. in industrial plants there is no need for recording video from inactive sites
  • S.M.A.R.T. hard disk monitoring
Front panel of a Ultimax DVR
  • Reverse playback
  • SMART Search - allows for finding moments with movement in a defined area of an image in order to analyze vital events
  • Tags - some parts of the recording can be marked to quickly find them in the future; they can also be protected against overwriting
  • DDNS - Hikvision offers free DDNS server, eliminating costs connected with pay services like DynDns
  • Channel Zero - setting the limit for the bandwidth and frame rate of the video stream transmitted over the network and accessible via Internet browsers
  • LAN log and statistics - this diagnostic tool can check connectivity status and network parameters
These functions of Ultimax DVRs provide unprecedented flexibility for optimizing the video surveillance system and its everyday operation.
5 GHz radio link with small devices. Wireless devices for point-to-point links should combine high efficiency and compact size. DIPOL offers new access point RouterBoard SXT 5HnD N24112 with dimensions of 140x140x56 mm.
RouterBoard SXT 5HnD is a complete CPE (Customer Premises Equipment) 802.11n device using MIMO 2x2 technology. It operates in the 5 GHz band and its dual-chain antenna has 16 dBi gain with 35 dB isolation between the two orthogonal polarizations.
The platform is consistent with MikroTik NV2 TDMA protocol which allows for higher bandwidth compared to the 802.11n standard. The device is equipped with an easy-to-use mast mount. The positioning of the built-in antenna array is facilitated by a signal level indicator (LEDs).
The unit is usually used as client station and component of point-to-point or point-to-multipoint links.
Access Point SXT 5HnD (5GHz MikroTik 16dBi 400mW MIMO 2x2 802.11a/n)Access Point SXT 5HnD (5GHz MikroTik 16dBi 400mW MIMO 2x2 802.11a/n)
Point-to-point link with N24112 devices
The success of DIPOL at Energetab! The largest trade fair for power industry in Poland, Bielsko-Biala International Power Industry Fair Energetab, took place on September 17-19. Energetab is a unique event which enjoys great popularity among exhibitors and visitors. The latest products were showcased by 740 companies from 18 European and Asian countries. The booth of DIPOL from Krakow was full of visitors all day long. The strong marketing POWER had our special ROBOT.
SAT KRAK 2013 DIGITAL TELEVISION FAIR in Poland. The ninth edition of the largest trade fair in Poland dedicated to terrestrial and satellite television - SAT Krak 2013 - will be held in Krakow on October 3-4. After last year's meeting in Warsaw, the fair is back where it has a long tradition - in Krakow. This year the organizers have changed a little the concept of the event, focusing on lectures and conferences on issues connected with implementing DVB-T and DAB+ (digital radio). But as usual, there will be exhibitions of major industry players, too. We invite you to visit DIPOL stand and possibly take part in the lecture given (in Polish) by engineer from our Technical Department on October 4, 11.30-12.00 CET - "DVB-T modulators - it's about time".
...more »
Best Western Premier Krakow Hotel
ul. Opolska 14a
31-323 Kraków
New products offered by DIPOL:
DVB-T/CATV Switch Axing SPU 6-02
Antenna Plug (IEC): Cabelcon (angular, RG-6/Triset-113,
Switch Mode Power Supply PSDC08128T (12-15VDC, 8x1A)
Axing SPU 6-02
Cabelcon "Self-Install'
IEC Antenna Plug
(12-15VDC, 8x1A)
Worth reading:
Fiber optic mechanical splicing - how does it work? One model of mechanical splice can be used for different types of optical fibers whereas mechanical connectors are intended only for specific fibers... more
Cross section of an SC/UPC mechanical connector:
1 - single-mode fiber optic cable, 2 - 125 um fiber placed in V-groove,
3 - optical gel compensating the effects of an imprecise cut and vibrations,
4 - built-in fiber fragment (dedicated for specific fiber type)
Images from surveillance cameras and PC in a hotel TV system. Baseband video signals from analog cameras, DVD players, personal computers, multimedia players etc. can be introduced into the hotel TV system in digital form using the appropriate modules of Terra MMH-3000 headend... more
3G backup Internet connection. TP-Link TL-MR3420 3G/3.75G N2957 wireless router enables quick creation of a wireless/wired network allowing access to the Internet via a 3G connection. The device allows wireless transmission speed up to 300 Mbps (802.11n) and LAN connectivity (Ethernet) up to 100 Mbps. The Internet connection via 3G network is done through the USB interface cooperating with a suitable 3G modem (the list of compatible devices is available at the manufacturer's site)... more
Typical applications of the TP-Link TL-MR3420 N2957 router
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