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DIPOL Weekly Review - TV and SAT TV, CCTV, WLAN
No. 6/2019 (Feb. 11, 2019)
Tests of a flying taxi. Airbus company begins testing a flying, four-passenger taxi called CityAirbus, in a helicopter factory in Donauworth, southern Germany. The design resembling a large drone is equipped with eight Siemens engines (electric drive systems with a maximum power of 200 kW). The tests will mainly consist in short takeoffs and landings. Then the prototype will be making longer and longer flights. CityAirbus will be able to take off and land vertically, and maneuver in all directions.
The prototype of the CityAirbus
(source: bloomberg.com)
The trial flights of CityAirbus will be conducted without a pilot, because the company focuses on full autonomy of the aircraft. Depending on the applicable law in a particular country, Airbus also considers the option of three passengers and a pilot. The main assumption is that the taxi can transport up to 4 passengers, at speed up to 120 km/h. The machines will initially fly on fixed routes. The American Boeing is also working on a prototype of unmanned flying taxi, which has already carried out the first tests. AirbusCity, according to producers, is expected to enter the market by 2023.
Broadband amplifiers in shared antenna systems. Broadband amplifiers are necessary in shared antenna systems (MATV/CATV) to distribute antenna signals within passive networks. They compensate the attenuation of the distribution networks caused by passive components of the systems: splitters, taps, cables and antenna outlets. Depending on the needs, the installer can select forward-path-only models, or amplifiers equipped also with return path/channel (needed for providing Triple Play services - TV, Internet, telephone).
TERRA company's products enjoy a high level of trust among installers. The real parameters are often better than provided in the data sheets. Full use of modern electronics and information technology allows the company for precise measurements of parameters and control of product quality, including tests in climate chambers.
The table below presents four popular models of TERRA broadband amplifiers used in cable TV networks.
Band(s) [MHz]47-422
Max. output level [dBμV]118/120107106115
Forward channel gain [dB]43-49/49-56363614-28/18-25
Return channel
Return channel gain [dB]----4
LTE filter
DIPOL has been selling products of TERRA company since 1996.
Since March 2013, the warranty period has been extended to 4 (four) years.
How to configure sending alarm emails from Hikvision devices via Gmail account? Emails provide a convenient way to inform the user(s) of a video surveillance system about events and exceptions. To enable email notifications, it is necessary to:
  • establish correct connection of the suitable device to the Internet (a frequent problem is ignoring the settings of the gateway and DNS server),
  • configure email account,
The address of the SMTP server and the number of the SMTP port will be needed for filling in the relevant fields of the Email submenu of the Hikvision device (see the screenshot below).
To use the Gmail account, it is necessary to change the Security settings by enabling access to less secure applications. The problem lies in the incompatibility of encryption standards. As the change of the settings can have a negative impact on security, we recommended to create additional account only for sending emails from the device.
  • configure email service in the device.
Example configuration of sending emails from a Hikvision device via Gmail
Loading lists of license plates to the DS-2CD4A26FWD-IZS/P camera. The DS-2CD4A26FWD-IZS/P K17893 (2.8 - 12 mm) or K17894 (8 - 32 mm) camera, dedicated for license plate recognition, can be used for control (via the alarm output) of a boom gate to a housing development or other restricted area, without a need for a DVR.
IP Project Camera: Hikvision DS-2CD4A26FWD-IZS/P (2MP, 2.8-12mm MOTOZOOM, 0.0027 lx, IR up to 50m, WDR (120dB), LPR, IP67)
The DS-2CD4A26FWD-IZS/P K17893 or K17894 camera can work autonomously
and control a boom gate to a housing development or other restricted area.
The camera can store up to 2048 license plate numbers.
In the case of the autonomous operation, it is necessary to import the list with "white" (allowed) and "black" (prohibited) license plates/vehicles. In the autonomic mode the list can have up to 2048 rows. Such a solution can automate the control of the access to the development. The installer/administrator can edit the list after logging on to the camera and going to the Configuration -> Road Traffic -> Blacklist & Whitelist submenu. The Export tab enables the user to export the current list (with *.xls extension) to a computer (to save it on a drive). It is possible to change and enter the suitable data in every three cells of each item (row) in the list:
  • N.O. - ordinal number,
  • Plate Num - vehicle license number,
  • Group (0 - black list, 1 - white list).
View of white/black list import window
of the K17893 / K17894 camera
The window with the editable list of license plates
(file with the *.xls extension)
After updating and saving the list, it is necessary to go again to the Configuration -> Road Traffic -> Blacklist & Whitelist submenu. The next step is to click the Browse button and indicate the location of the saved file, then click the Import button to transfer the file to the camera. The last step of the configuration procedure is to be made in the Configuration -> Road Traffic -> Detection Configuration menu (activation of license plate recognition, selection of the detection area, arrangement of a schedule, choice of the reaction to the appearance of a white-listed or a black-listed car - adequate state of the alarm output).
Easy maintenance of systems with fiber-optic patch panels. Fiber optic patch panels, unlike panels dedicated to the termination of coaxial or other cabling, have holes for fitting optical adapters during the installation of a system. The most common front panels include models with 12 and 24 openings.
Front panel ULTIMODE P-24SC-DUPLEX L5544
Usually the number of holes is higher than the actual needs. Some installers decide to install adapters in all openings, despite the fact that some of them will not be used. The more economic and also more convenient solution from the perspective of future maintenance of the system is possible with the use of dedicated blank plugs. With this solution, the technician sees the active ports at the first sight.
SC Simplex Blank Plug
SC Duplex Blank Plug
L5502 - simplex blank plug
L5503 - duplex blank plug
Some installers leave unused holes empty. However, this means an easier way for dust and dirt to enter the system. The pollution increases the likelihood of deterioration of connection parameters during switching operations in the future.
The most popular EAP access point. The TP-Link EAP series ensures hardware and software means for deploying flexible, safe, and easy to install and manage wireless networks. The devices can be easily mounted to walls or ceilings. WLAN configuration and management are simplified through centralized management software. TP-Link EAP devices also provide captive portal and automatic RF management, making them ideal for high-density, demanding business environments, such as campuses, hotels, shopping malls, offices.
TP-LINK EAP225 N2567 is currently the best selling item in the category of access points for business and campus applications. The dual-band device (2.4 and 5 GHz) can provide high-speed connectivity up to 450+867 Mbps (working in parallel in both bands in the 802.11ac standard).
Wireless Access Point TP-Link EAP225 (dual-band, AC1350, PoE 802.3af)
Wireless Access Point TP-Link EAP225 (dual-band, AC1350, PoE 802.3af)
New products offered by DIPOL
SFP+ Module: Ultimode 10Gbit/s BiDi (single-mode, 1270nm/1330nm, 20 km)
SFP+ Module Ultimode 10Gbit/s BiDi (single-mode, 1270nm/1330nm, 20 km) L1430 converts electrical signals to optical transmission standards and vice versa. The module supports data rates up to 10 Gbit/s via one single-mode fiber (BiDi / WDM transmission). The maximum transmission distance is 20 km.

PoE Switch: ULTIPOWER 0064afat (65W, 6xRJ45 incl. 4xPoE 802.3af/at)
PoE Switch ULTIPOWER 0064afat N29978 is a desktop device enabling smooth data transmission in 10/100 Mbps Ethernet networks. Its six RJ45 ports support auto-negotiation function, four of them provide power over Ethernet (PoE function). The switch automatically detects PD devices compliant with IEEE 802.3af or IEEE 802.3at standard and provides them with power supply. This feature allows the user to expand the network coverage in areas where there is no access to AC power lines/outlets and to deploy access points, IP cameras, IP phones, etc. The total power consumption of the connected PoE devices cannot exceed 65 W.

Ceiling IP Camera: Hikvision DS-2CD2145FWD-I (4MP, 2.8mm, 0.014 lx, IR up to 30m, WDR, IK10, H.265/H.264)
Ceiling IP Camera Hikvision DS-2CD2145FWD-I K17295 is dedicated for professional IP CCTV systems. The compact camera has been equipped with high quality 4 MP 1/2.8" CMOS sensor providing perfect video coverage even in low-light conditions. Along with IR illuminator with range up to 30 m made in Exir 2.0 technology, the camera can also operate in complete darkness. The built-in 2.8 mm lens has 109° viewing angle. The IP67-rated housing of the camera protects the electronics against adverse weather conditions. The camera can be powered conventionally with a 12 VDC source or with the use of PoE option (802.3af).
Worth reading
Cybersecurity thanks to the cloud. Virtually every DVR and every IP camera has a connector that allows for connecting it to the Internet. Thanks to the internet connections, the users can configure the equipment, preview live images, play back recordings. However, any device connected to the Internet is exposed to cyber attacks, i.e. unauthorized access. To minimize the risk, the installers of the systems should follow the rules for building a secure system... >>>more
The architecture of remote access to CCTV devices via the Hik-Connect cloud service
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