DIPOL at SAT KRAK 2008
Courses for installers delivered by DIPOL
The entries for "Engagingly about Antennas 2008"
The modern MMH-3000 headend (R81716) manufactured by Terra Electronics - the leader in TV and SAT TV technology - makes a huge difference. Of course, it can still be programmed locally (with handheld control unit PC100 R81702, a laptop, or PCS-200 R81716 console), but one of its advantages is capability of remote configuration. For this purpose there is used the above-mentioned PCS-200 console that is equipped with a network interface. It enables the operator to manage the headend both via LAN and the Internet, with a regular PC. Practically the only intervention will be needed in the rare case of changing the cable coming from an LNB. It can usually be performed by someone from the staff (e.g. at the hotel).
There is no other headend in the market that provides highly advanced solutions for such a competitive price, thus it becomes very popular among installers and investors.
More on the headend you can find in the articles:
Modular Headend TERRA MMH-3000
A short guide to MMH-3000 TERRA design
There is no big problem with long-distance video transmission. Our tests show that CAMSET 50 75-0.59/3.7 M6050 cable can transmit video up to 300-400 meters without perceptible loss of quality. Only when the distance exceeds 400 m an additional equipment is needed (e.g. the M1840 amplifier).
Using Ohm's law - a camera of 245 mA consumption can be powered via CAMSET 50 M6050 cable over a distance of about 60 m. Using CAMSET 100 M6100 the distance doubles to about 120 m. In the case of using outdoor set composed of u-cam 110 M1128 camera and Marathon MH-806/12 M5406 housing, its current consumption is about 900 mA. The maximum distance for CAMSET 50 M6050 is then 17 m, but for CAMSET 100 M6100 - twice as much, i.e. 34 m.
The latter mode should be chosen when there is used IR illuminator controlled by a light sensor. The cameras are equipped with special NO inputs which are used for synchronization with IR illuminators. The moment the IR illuminator switches on, the camera is switching into B/W mode.
Light (dusk) sensors usually have smooth adjustment of the switching point and feature decent hysteresis loop and lag that protect the set against instability in the case of short changes of light (e.g. lightning, the headlights of cars driving past). Installation of the camera does not cause additional problems - the manufacturer has equipped it with ready-to-use terminal (connector with a short piece of cable).

The manufacturers of IP CCTV devices are mainly developing software using ActiveX technologies that are supported only by IE browser. But recently a new plug for Mozilla Firefox 3.x has been released, IE TAB, enabling to browse any sites previously reserved only for IE. After installing the plug, the sites are available via MF as well. Unfortunately, there is still a barrier of operating system - the plug is not suitable for Linux systems.
IE TAB enables the users to log into all IP CCTV devices using Mozilla Firefox.
The plug is available at IE Tab.
In the case when the camera has more advanced configuration menu, there should be also set such parameters like: the number of data bits in the packet, parity bit (error checking), stop bit (end of packet). The control of PTZ camera will function properly when both the camera and managing device have been configured the same way.
So the default password may be not enough for establishing Internet connection. The tables below show the proper parameters of the most popular services. In the case of any operator such parameters should be handed over to the subscriber.
Operator | Name of service | Encapsulation | VPI | VCI | Multiplexing |
TPSA | Neostrada | PPPoA | 0 | 35 | VC/MUX |
GTS Energis | Multimo | PPPoE | 0 | 35 | LLC |
Netia | Net24 | PPPoA | 0 | 35 | VC/MUX |
Dialog | DialNet | PPPoE | 0 | 35 | LLC |
Tele2 | Tele2 | PPPoE | 0 | 35 | LLC |
Operator | Name of service | Encapsulation | VPI | VCI | Multiplexing |
Netia | Net24 | RFC2516 PPPoE | 8 | 35 | LLC |
Dialog | DialNet | RFC1483 Bridge | 1 | 32 | LLC |
WPA protocol provides much stronger protection, but its complicated configuration creates a barrier for less advanced users of home Wi-Fi networks. In order to make the issue easier, TP-Link has introduced in its devices WPA-PSK (Pre Shared Key) protocol. It enables quick and easy configuration of TP-Link Access Points.

Modern business is based on modern media ensuring quick response, thus many companies value the up-to-date solutions implemented in DIPOL e-Store: on-line confirmation of the availability of an item, access to wholesale prices (for logged-in users), shipping costs information, possibility of placing complex orders directly in the shipping department.
Furthermore, the registered companies dealing with TV, SAT TV, WLAN or CCTV equipment can take part in the Partnership Program that enables the Participants to become our Authorized Partners and use our proprietary B2B software and other tools, as well as to launch joint offer and create strong distribution network. It includes access to wholesale prices, possibility of purchasing chosen products at Special Prices, technical support, and marketing promotion - by supplying catalogs, posters, banners etc. as well as deploying joint advertising campaigns.
We encourage the companies to sign up for the Partnership Program.
Why RTOS (Real Time Operating System)? ... Recording of the signals in digital form (with set parameters: resolution, frame rate, number of channels) is a priority and has to be performed in real time. Any delay will cause loss of video data (e.g. several video frames)...
- archive DWR of March 10, 2008
How to choose a mount for the LCD television? The MIS (Mounting Interface Standard) or FDMI (Flat Display Mounting Interface) standards of installation of flat panels (LCD/plasma monitors and televisions) has been developed by VESA (Video Electronics Standards Association)...
- archive DWR of Jan. 14, 2008
Surge protection of CCTV devices. An effective method of protecting CCTV devices from lightning discharges is application of surge protectors, e.g. OPV-4 M17014. The device protects all four BNC inputs...
- archive DWR of March 17, 2008
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