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SOME OF THE MOST SIGNIFICANT  INSTALLATIONS  I HAVE  MADE WHEN  I WAS DOING THE TVRO BUSINESS

As referred in my history web page , I was  one of the oldest  makers and  installers of satellite TV  systems in Thessaloniki , starting from 1984 by designing a satellite TV Antenna (mainly 1.8 diameter dishes) and little later producing and installing  these antennas. A little later  we added  3  meter  systems - dish hardware including horizon to horizon motorized mounts sold as default  -  imported  from E Europe ( but dyecast  design  made in Canada) . These systems  were  the most favoritism that time for most end users.

Below   you  will find  illustrated pictorials of these  old installations, including some historical background. I was very unfortunate however  that much of my TVRO installations album/ file  has been lost on 1992-3 when i was operating the Pieria TV  in Katerini, as someone  stollen  the picture dossier among with other very useful materials and equipment. Please see special article with the history  on Pieria TV here

Notice that after 20+ years none of these companies noticed on the text exist. 

Zacharias Liangas
Pictures personal copyright  2003-2005
Please email me at zliangasfive (in number) at gmail dott com

	University of  Astronomics (Thessaloniki) This system has been made in the start 90's period. A professor,has  shown an interest in installing a system for monitoring the stars , but   the system has been fully completed for TVRO use. I am not sure if the system has been used for astrophysical  reasons but the LNB are still the TVRO as used before
	FM 100-100.5-101 (Thessaloniki) One of the oldest installations with the 'public sector ' i made. There is also a small anecdote with the story  of this installation. During 1988 i have recorded  several  audio cassettes  from  several  satellite  radio stations and once I have given a sample to  the president of the  municipality  radio station . It was also the time that Deutsche Welle and BBC  were transmitting  their greek programs also via satellite. A little afterwards ( 1 month?)  they shown an interest   for a 3 meter system. The funniest is that   the same night  the system has been installed , a  pirate TV  transmission with satellite TV Programs has  been transmitted from an unknown point , but surely  from a further point  closer to Hortiatis , and next day  the local authorities were supposed  that this transmission was originated from FM100 system ! The system  was then used primarily to  relay BBC and Deutsche Welle  though more recently its relay use has been declined The headquarters  of FM 100 are located in the  Angelaki street  , the also called  stations  street . The rear  part of these buildings belong to Hellexpo, the main exhibitions  super hall  of Thessaloniki and still the larget exhibitions hall in Greece( about 15000 sqm) with more than 15 exhibitions  every year  . . And about the  3 m antenna we used: Its design is 8 pieces of aluminum  abt 1,5 mm thick Quite later Municipality radio station left the building and toook everything into their TV headquarters nearby the White Tower. The bulding  is used now by a supermarket chain store
	University of Mathematics (Thessaloniki) The second  system installed for the university , after an interest of a professor of Mathematics, though  the system and its installation was very simple,its  maintenance was  much of headaching and requirements of this professor and caused me to lose some important  equipment. Antenna is barely  shown  as is it several meters far from the edge
from my files ..April 1988	Municipality of Ptolemaida This was  the second  municipality project.After  the success of the  system of Thessaloniki several others  cities  with mayors of the same political party as Mr Kouvelas, Thessaloniki's mayor,    (ie New Democracy party which was the  major opposition party of that  time) , shown nearly immediate interest in  putting  a TVRO  relay system. System has been installed  3 months after the  system of Thessaloniki. That installation was  not without incidents  between  them and the  police, as it happened with  the municipality of Thessaloniki and police  for the installation of the radio station . It has been rumored  that  the same police force used in Thessaloniki ( which came  from Athens ) was also in force in Ptolemaida.About  400 persons of the  force have been used ... The system has been  at start installed in the mayor's building  abt 2 km ouside the city. and included 3 TVRO dishes with  2x 3m dishes and  one 1.8  m dish and a  full  relay system with 5 Uniden TVRo receivers , 5 transmitter of  5 W and 5 lazy-H type  UHF  antennas and Heliax  cables. Later they moved the system to  the hotel .All of this  equipment was available  in the local market (Thessaloniki). The system  has been used in that point for several years  and then  transferred to a hotel  1 km far from that  point . ON a  recent visit to the city  the system  has been  dissolved and used for several other personal installations of the members  of the municipality  team. The  mayor's building shown at left ,  is a preschool  child  station if i am correct. THis  building ws on the start of its make and recently (2005)  is has been  grown into a 2-3 store building in between a  very rich green farm Ptolemaida  is  the city of production of electricity for all Greece . There are  several lignite power plants outside the city and  the older times nearly all inhabitants of the city worked in the power plants
	Municipality of Kozani This system has been  installed  as a oppression follow-up of the system of Prolemaida, little time after the  project in Ptolemaida has been concluded . Kozani is located 20 km south  of Ptolemaida and is the capital of the county The system  has been  installed in a school in the outskirts of the city ( for that time)  about 3 km SE  from the  city's center It included  the same  material  as the above installation. It is is still in use today  (~2000)  and relays  RTL , RAI 1 , Kanal 1 russia and MTV German ( all free to air channels) ,but about 4 - 5 yearrs  ago it has been transfered to another point , possibly the  mountains at south. The picture shown in the left is a photo shot of the building where the antennas were installed .Unfortunately I have not made any picture those times of the installation. It was a very abrupt case that amused all of our team.
	This is a set of 3 pictures   from Kaduna, North Nigeria on Feb '90 The left shows  the TVRO antenna  on the top of a container together with the Greek flag , as the owner of the company in Nigeria is Greek man  , though  he lives in Nigeria  for more than 20 years At the right  there is a hot water solar system made by the 'mother company' of the TVRO systems  , Thermocal . I Used the facilities of the family's ( those times) company Thermocal to produce the  1.8 m diameter antennas. At the rear part  of the  solar hot water  is  a metallic container  that 'contains' the electronic system of my promotional  TVRO system with  3 m dish, an analogue sat receiver and a small TV set . As far as i remember  there were also  other TVRO systems in the  trade fair  with 5 and even 7 m mesh antennas  on the C band as mine's , however my system had the best efficiency and result over remaining systems We were the guests of the head person of the company 'Hydro Construction ' who is Greek. His company is involved to desiugn and install complete irrigation systems. ie from drilling to community water tanks . IN his pavilion  except the drilling and irrigation systems  also photo-voltaic [from his side, just introduced for autonomous usage] , solar systems and TVRO  were exhibited. ( my TVRO antenna is shown behind  the drilling machine at right The picture on bottom comes  from the Feb 26th  1990  issue  of "the reporter"  newspaper featuring  a "trade fair special " THis was the first part of my trips to Nigeria together with my father . we spent one month on that area. A few months later I gone again to his house on  Zaria , N Nigeria  for  setting up a (never made) TV  channel
	Two systems in Nigeria . Both systems  have been  installed by our dealer in Nigeria but later tested by me . The system at the left is in Idah  ( middle Nigeria) and the left in Lagos. the late system  was used mainly for receiving  the Italian channels from Eutelsat 13E but several days  before  i visited  the city/house  the satellite has been replaced by a new one ( Hotbird?) which had a different 'footprint'  (illumination pattern) Shot on 1991
	From a  trading fair in Hania Creta Greece on 1990 in the local sellers' stand displaying his products in  combination with energy systems of the mother company and mine satellite antennas
AND SEVERAL SYSTEMS WE EXPERIMENTED - in the factory of Thermocal , the family's company
	One of our  first used antenna on 1983-4. Antenna is only 1.2 meter and checked /used for Ghorizont 14W on C band, . Here my "cousin-in law"  Nick  (or Claus) is putting plastic letters on the antenna little before we tested  it. Antenna  bought  from Spain  for experiments.
	An antenna  tested on  those early times . It is a C-band  mesh antenna design given by a  to be cooperator  from USA  but tested unsuccessfully in the  Ku band   Then we replaced its  mesh with amuminum foil  but still  antenna  had very low efficiency  but as you may see it has a nice appearance!
	Another heavy design antenna made experimentally by us  Also these  early times . As far as I  can remember it's weight exceeded 100 kgs! It's diameter is 1.8 m Later this antenna  left by  someone very stupid  to the trash ...

And here is a  picture from one to-be that time cooperator who wanted  to use our factory's facilities  for producing  'uncommon  type'  TVRO dishes for that  time. This  person came from USA and was an expert(?) in telecoms  and very proud of his design  . The designer is shown at the left  and my father at the right . The antenna is 1.8 x 1.2 m perforated aluminum . The funniest  thing is that  he did not know that in Europe  , from the start of the satelitte TV era (85-7) we used Ku band. As in result this antenna   performed about 2-3  db less than  a 1.2 m solid dish! Its design was  3 sheets  of perforated aluminum that then combined into one dish. And really i wondered     before  we made the installation if this antenna  could ever operate! .

And this is another system installation (with 3 antennas 1.8 m and 3 m ) in a trade fair together  with our mother company Thermocal (hot water heaters and storage radiators ) As far as i can remember te fari was in Lamia on the centre of Greece Updated 8-5-10

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