Wednesday, January 13, 2021

Digea :the geek DTV history

D Day  for Thessaloniki

Yesterday 15-12010 is the D-day (digital day switch over )though in pilot stage  for nationwide TV channels relaying in Thessaloniki. Most of the western part of the city including parts of the north areas including us in  Filiro and Retziki are now able to watch the 7 TV channels via 2 transmitters using MPEG 4 compression technology and COFDM mode.

The 7 TV channels are Ant1 Mega SKAI STAR MACEDONIA Alter and Alpha which last year started a consortium  called Digea TV to promote the digital switch-over  in Greece for the commercial TV channels (separate from the national TV network). Thessaloniki is the second point with Athens to follow in several months but in the first semester of 2010. First press release was on 16-12-09 and all members of the consortium started banners from the 1rst of this year to inform for the digital switch-over that just made from the point of Filipion central part s of the city but on the mountain) but leaving the older main point of Hortiatis (E of the city) still  using analogue  mode

More for this including two coverage maps in this page
http://www.digea.gr/news/details/3/8.html

As for now 15-1-2010 and 0700 LT the switch-over has been completed  using two 'transponders' on 25 and 29  for the digital format, previously used by Macedonia TV  , another (?? No info ) as  spare while all other  freqs use the following  notification for this





 

Itr writes: from 14th Jan 201 the digital TV has been arrived in Thessaloniki . Any one watching this message and can't receive the  nationwide (commercial )TV channels from Hortiatis point has to do the following :
  • In case yor tv set includes a MP4 decoder please re-tune it on TV channels 25 and 29
  • IN case you TV set does not have any MP4 decoder , you will need an external decoder 
More info can be found in www.digea.gr or call the number....



Tested my father in law's TV monitor  with built in decoder yesterday 15.1 morning 0700 LT . channel 25 was with 3+1 TV channels in the clear (Antenna , Alpha Alter and spare ), while ch 29  due to some in band-QRM showed halted or low-framed video (channels available MAk TV , Mega Sky Star) , though today signal was 100% . This is possibly caused due to a  2 antenna mixed system used so far to pick signals from the two main transmission systems.

As for the picture , with the TV set  is better  than using a sat system


And here is a listing as found from unknown site

And here is a listing of he freqs used by the DIgea members


The full digital coverage is expected to be carried out by 2012 or 2015 

As per Digea  site , this is the second digital network system . The first transmission system  has installed in Xylokastro (near Corinth on Peloponisos )3 months ago and the next  system  will be installed in Athens Larisa and Patra

It  should be noted however that the Greek national TV network ERT  is already transmitting in Mpeg 2 digital format in Thessaloniki  since mid 2007 using the transmission facilities from  Hortiatis in the TV channel 56 using a special digital package with 3+1 channels (Prisma , ,and  RIK the Greek cypriot national TV channel)

Update on 10-10-10 !!

Now the  digital scene  has changed a bit . Now the channels  that can be received  (in Litohoron )are as follows:

 

MHZ

signal

programs

506*

78 %

Alpha , Alter Antenna Mtv

514!

95%

ET1 NET  ET3 Vouli , and 5 radio stations

538*

94%

Mega  Skai Star  , blank

706

92%

PRM 1-4

754!

92%

Prisma ,Cine Plus, Sport ,RIK

778

78%

Thessaloniki TV , 9 , XTV , TIME

  * : signals  coming from Philipion , inside Thessaloniki MP4 format (Digea network )
Other signals are coming from Hortiatis antenna  farm .

IN our area  the signals from 778 706 514  are NOT  receivable

The transmitter on 706  shows only a DVB-T card for the moment It is there for at least 6 moths

!  : From the start of October (guessing, but actually on 20.9 as a blog site mentions ) the   national public network has added the transmitter on ch 26(514MHz ) with transmitters of ca 20 kW  and upgraded  their power on ch 56 (754 MHz ) with the same power . It is deemed that  they still use the MP2 format



New update on 14-1-11


As on 14.1.11   the transmitter from the Greek national TV   on channel  26 has been changed transmission site and frequency:
The transmission point changed to Phillipion (from Hortiatis)
The frequency has changed to  23 ,
replacing  the analogue TV channels  of ET-3 (on ch 23) NET (of 49)and ET1 (of 39).
But some problems  occurred  to the transmitter of the other digital package from the national carrier that consists of Prisma /Cine plus /RIK Cyprus/ and Sport PLus with 2-3 signal dropouts per day .

-------------------------------------------------
NEW UPDATE 15-8-11
 As per 15-8 the channel bundle on 706 MHz has  started programs with the channel 4E ie a religious program from private sector. All 4 slots with the sane TV program
--------
A new update on 20.10.11

A new  search on the band shown a new 'transponder' on channel 50  for Retziki called Depthe  as provider. ON the start it shown 3 TV channels namely TV100  frm the local municipality , Thessaloniki TV and another unidentified  . Several days after , checked 'today' 1/11 the transponder with 77% signal shown the picture below 






--------------------
March 2012

IN the western Thessaloniki i found a not new TV channel transmitted from the TEI (tech Institutes in Sindos  ) using 1080 HD definition .Signal in Retziki is only 16%
Also :
674  MHZ  new with 64% signal  with new Nova encoded  channels including TV5 and Euronews


---------------

Mid April 12
New  transmitters  as checked in Litohoron

754 RIK /Vouli/ DW /BBC News
554 DION (Caterini ) / Euro 1 / Egnatia /Nickelodeon
570 BNTV 1 /test card  - from Bulgaria with 86% signal
---------------
December 14th 2012

This is  the start day for Digital  TV in the whole Thessaloniki
The map is now this way :
ONly two  channels  still transmit in analogue , the national ERT  channel 1  which is transmitted in 05 and 36  and TV100  in channel 44  which is also received OK on mountainous areas
The other digital channels are as  follows:

490

Et 1  NET ET3 ET HD + 5 radios

498

ALPHA ALTER^ ANT1 MAKTV

538

MEGA STAR SKY  ----^

554

NICKELODEON EGNATIA EUROPE 1 DION EXTRA VERGINA

674

NOVA 2 CHANNELS (ENCR) TV5 EURONEWS

708

4E EURO GNOMI TV100

754

VOULI BBC DW  RIK

778

ART CH 9 TIME XTV CH5* CH6*

 

* just two blue  screens

^  ALTER  has been suspended  several months ago , ---  is just a spare vacant channel

-------------------------------


NEW UPDATE  NOVEMBER 2014 & 16

On November 2014 all frequencies have been  redesigned by the state and the  transmission point  for Thessaloniki has been fixed to mountain Hortiatis  and the program we could receive in the mountainous points have  been  disappeared leaving especially us in the top of the mountain  under very difficult conditions to watch TV .

The list below is from Litohoron on late November  2014  The list for he moment does not include the special   transmissions of NERIT.


  Channel
 Programs
 Mode
21
MRT1 , 2 , Info, Sobraniski  + 12 encoded (FYROM!!)
64 QAM
23
Alpha ,Ant 1 , Art , E  (CH)
16 QAM
24

16 QAM
25
N1 N HD Vouli N plus (greek Nantl  CH)
64 QAM
27
Alpha ,Ant 1, Art , E (from THS )
16 QAM
29
BTV , NOVA , TV7 , NES 7  (Bulgaria)
64 QAM
30
MTV , MEGA , SKY ,STAR  (THS)
16 QAM
31
Egnatia ,  Europe  1, Dion  , Vergina
16 QAM
34
MTV , MEGA , SKAI , STAR   (CH)
16 QAM
35
ET3 + Ertopen (radio)  only in Thesaloniki on 15 !after the closure of ERT from government
16 QAM
36
-

50
4E, Euro , Gnomi, TV100  (TH)
16 QAM
55
4E, Bee , Vergina , Extra , Europe 1  (TH)
64 QAM
56
Kanali 9 , Nick Plus* , Super , TV 100 , Z  (TH)
64 QAM
59
Time , Pella  (TH)
16 QAM




Notices : 24 and 36  have  signals with no program . 31 is set with these 4 programs  without streams 
* Nick is Nickelodeon in short.
TH : Thessaloniki  CH : presume Chalkidiki transmitters


ON 16 AS SEEN IN LITOHORON


Several modifications  have been made to the transmitters on 15 making a whole change of the frequencies and networks and possibly transmission powers  while on May 16 HD channels have been added on 43 and on eraly June the  second network on 48 has been added with only E  and hoping that the remain channels will be added in the transmitter .
The terrestrial  receiver has shown several strong (90+%)  signals on 22 /23 /32/34/49 without any content which i suppose are self hets so i ignore them  from the listing. A second receiver in another point shown strong carriers  on different  frequencies making me to think that they are really self hets . IN that  point MRT on 21 could not been  found.

Channel
 Programs
 Mode
21
MRT1 , 2 , Info, Sobraniski  + 12 encoded (FYROM!!)
64 QAM
24
ERT1 2 3 HD Vouli  [TH ]
64 QAM
25
ERT1 2 3 HD Vouli [CH]
64 QAM
27
Alpha ANT1 ART E [TH]
16 QAM
29
BTV , NOVA , TV7 , NES 7  (Bulgaria) 16QAM
30 M Mega Skai Star [TH]
16 QAM
36 TV5 BBC DW RIK - [ERT net] [TH] 16 QAM
43 Ant1 star skai M - [HD] [TH] 64 QAM
48
E -HD [TH] 64QAM
51
Egnatia Time Pella    [TH] 16 QAM
55
4E Atlas Vergina Pontos  Europe 1 Extra  [TH] 64 QAM?
56
Kanali 9 Nick+ TV100 [TH] 16 QAM


Last update on 2020


This is the latest editing on 2020 showing the new changes prior to the new entry of LTE on the 700 and above MHZ as updates from the above table with only reception in Thessaloniki These updates are being held around Feb 2021 as noticed from the news end of Oct
The channels have also been tested via the scanner of SDRplay with a few screenshots shown afterwards. The 9 MHZ channels are unknown of usage possibly the 4G

Channel
 Programs
 Mode
24
ERT1 2 3 SportHD Vouli + 6radios [TH ]
64 QAM
27
Alpha ANT1 Open [TH]
16 QAM
30M Mega Skai Star [TH]
16 QAM
35TV5 BBC DW RIK - [ERT net] [TH]16 QAM
 38  
 ET1 2 3 ERTsport VOULI + 6radios
 64 QAM
43Ant1 star skai M - [HD] [TH]64 QAM
48
Open Mega Alpha  [HD /TH]64QAM
51
Egnatia Time Pella    [TH]16 QAM
55
4E Atlas Vergina Dion Europe 1 AE[TH]16 QAM
56
Kanali 9 /Nick+ /TV100 /Euro /Gnomi [TH]16 QAM
 61-3 9 MHZ channels
 ???

some interesting  spectrum analysis is shown from the mountain place without any comments with associated program for RSP1a decoder as tested in the middle on July



 





 
 24 27 30    
 35 38 43
 
 48 51 55 56



New Update 19/3/21

 

With the advent of the G5 data system the TV channels are now put in a  shunk bandwidth leaving the 700 and 800 MHZ bands for LTE G5 to be established very soon

Channel

 Programs

 Mode

24

ΕRT2 &3* RIK/DW/TV5/ BBC

QAM 64

27

Skai , Alpha, Ant1, Open all in  HD

QAM 64

30

Star , mTV, Mega all in HD

QAM 64

36

ERT 12&3   HD, Vouli  

QAM64

43

Skai, Alpha, Open Megan Ant1,Star SD

QAM 64

47

Vergina, Atlas,Dion, Euro, Europe 1,Gnomi

QAM16

48

TV100, AE, Nick + ,4E,Kanal 9

QAM16

 * I really wonder why ERT1 has not been added in the list  with the hope that they add their most interesting channel ASAP 

Channels 36 and 43  were received later after turning the antenna by 90 degs for the best quality making Ch 24 adn30 with less signal. For better results we changed the 3polar Yagi with a "new technology film antenna" for supposedly DTV signals  (sic)  that introduces  a wider reception and higher gain without requiring any amplification I m not sure on the technical background of it but really in added around 3-6 db  of natural gain  adding up to 6% higher signal level 

IN my QTH the signal was always with multiple ghosts prior to DTV.  

(add 2-9) 

Litohoron same yer for a long residence : there are a few more channels with digital signals but my new android TV cant get them as it does not shown transmitter frequncies: 

Zeppelin radio is added in a Greek channel

MRT -Skopje  network with MRT1,2 Sabraniski and a lot of encrypted programs (Baby TV, Balkan trip, CInestarDM sat HBO1,2 Nasha TV , Top Channel TV1000 TV shenja and a few radio stations )

BTV -Bulgaria (BNT 1 2 3 bTV Bulgatria on air

Moreover  while spectrum analysis yelded the following signal 

494-501   -85dbm 
518-525 -100dbm
590-597 -95dbm
662-669 -100
678-685  -96dbm 

 



 

Tthere were more than 10 more digital carriers with less than -115dbm filling nearly the whole band but are quite poor to be decoded by the TV leveled between -120 to -105  as made with the SDR's main program.In addition to it most of them are susceptible to fading These measurements are made in morning times 

Newer Update 12/12/21 in Litohoro 


Channel

Programs

Sig/Qual

Mode

21

MRT network :Baby TV/Balkan trip/Cinestar action /Cinestar Premiere/ DM sat/ HBO1,2/Info canal /MRT1,2,NAshaTV/Sobraniski /Top channel /TV1000, TV Shenja plus
antenna 5/ Kanal77/Makedonsko radio 1,2/Metropolis

10/00

QAM 64

23

-

10/6

??

24

ΕRT2HD/ ERT3HD / RIK/DW/TV5/ BBC/ ET1.

80/100

QAM 64

27

Skai , Alpha, Ant1, Open all in  HD

47/100

QAM 64

30

Star , mTV, Mega all in HD

70/100

QAM 64

31

Star , mTV, Mega all in HD

42/100

QAM 64

36

ERT 12&3   HD, Vouli

10/00

QAM64

43

Skai, Alpha, Open Mega Ant1,Star SD

70/100

QAM 64

45

Egnatia ,Pella, Time

50/80

QAM16

46

??? seems as 48

10/00

 

47

Vergina, Atlas,Dion, Euro, Europe 1,Gnomi

 

QAM16

48

TV100, AE, Nick + ,4E,Kanal 9

70/100

QAM16

49

ET1 HD /Vouli/ET1 2 & 3 plus
Proto Deftero Trito VoGreece Era sport Kosmos and zeppelin

40/100

QAM64

 

After chickling this android TV to the extreme with its thousand operations from its veru complex menu, the process of identifying the signal info is very complex.In the above tablet i added the signal strength and quality as xx/xx radio with signals very variable . All scrambled programs from MRT are shown with middlescore. Radio  stations are shown in italics. 

on 24 ERT1. is added  as backup just in case the signal is not visible in the other freq 

MRT netwrk is quite poor to be received , while Bulgarian TV seems nerly lost. sad for that!

 


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