Intro

This page is still somewhat chaotic. (as you might have noticed)

Links

some software used

I extended alevt a bit, to be able to decode all these other teletext packets: it writes all decoded frames to /tmp/teletext.log

Nederland 2

packet 28 (mag 0)

packet 29 (mag 0 - 7)

packet 31

dsgaddress
0efffff"Undefined Special Packet...."
1ffffff" Nozema Datacasting "
32see this hexdump
35see this hexdump
or other packets:

TV5

packet 28 (mag 0)

packet 29 (mag 0 - 7)

packet 31 (mag 0)

packet 0-24

en 'Softel' packets (data zit in gewone teletext lijnen, met 'hex' paginanummers.

VRT

packet 27 (mag 1 + 3)

packet 31 (mag 2)

"TES SERVICESB "

MBC

packet 31 (mag 3)

of when data is concatenated there is a 40 byte sized record inside it.

ZDF

data packets in rare paginanummers

pagina 1e7 : bevat url van http://www.zdf.de

packet 28 (mag 1,2,3,5)

packet 31

dsgaddress
3f"FAB Teletext System\r\n "

TVE

packet 31 (mag 3)

"FAB Teletext System"

eurosport

packet 31 (mag 1, 3, 5)

looks like random data

animal

packet 31 (mag 0,1)

looks like random data

packet 31 (mag 2)

sequences of bytes repeated

teletext information

Data packet structure:
00,010xAAAA
020xe4
03mag
04row
followed by row=0
05,06pagenr
07-10time
24fastext / page extensions
25telesoftware
26enhanced display facilities + VPT
27Linked pages (0..3 = editorial, 4..7 =composition)
28Page related redefinition (0:data designations+colordef, 1:charset designation, 2:conditional access)
29magazine redef (0:color, 1:charset, 4:?)
300,1:PDC 2,3:VPT-vcr programming, 4-15:?
31independent data line
packet 31 format:
00,010xAAAA
020xe4
03data channel(hammed)
04'1111'(hammed)
05format code(hammed) bit0=isNotDatacastFormat, bit1=havePacketRepeatByte, bit2=havePacketContinuityByte, bit3=haveDataLengthByte
06Address length(hammed) bit210 = nr bytes following
07address(hammed)
repeat indicator bit7=0:nomore data, bit3210 = seqnr
continuity indicator 8 bit number
datalength byte bits543210 : datalength
data
CRC

which channels have which pages

kanaalpg0pg1...pg23pg24pg25pg26pg27pg28pg29pg30pg31
raiuno9155928...915      561
cnn92751838...18361811  1835  111 
vrt72901084...9671080 3881099  12612334
mbc  ...        1216
infothuis126889...93 12 1 201
bbcworld10881166...8762809853 294  73 
trt5052621...617567  567  37 
service2969603...602      46 
thebox466489...52112      
ned183121184...11351188 38812164162855694
zdf906830...79899399 380 363355
tve26172563...24181026 20171029  10812385
ned2110691615...15471624 56316454163877742
fox839041313...1309      136 
discovery178140...217       1
ned374401061...10111060 37710824162555092
ketnet54741078...10781078 3201079  97 
eurosport3436856...858       2585
veronica35581345...1344434 2434  105 
rtl452731762...1659      140 
geographic16173...        25
canal+1  ...    1    
rtl540571594...1749 11   164 
cartoon3121851...761      113 
canal+22 ...         
bbc122161463...130312982859381306  10732
tv5106241566...1375222216139213648
bbc237751704...171317153519331719  140 
ard64401265...1312    1 5124
tmf14628...26 2  1 7 
sbs617043...39242211 6 
tvwest62202275...2274  183   192 
net534141760...1759  6   1462
muzik10 ...        3
mtv1901517...201327  2  62 
animal890238...2461198 884133810741