TUTORIAL: TNT RECEPTION ISSUES
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ISSUES WITH PARTIAL OR GLOBAL TNT RECEPTION OF MULTIPLEXES, OR RANDOM AND DIFFICULT CAPTURES. (Updated 1.7.2008)
Main areas of research (identifying problems) for locking* issues on the adapter (decoder) or appropriate television, or on a computer, or on a DD recorder, or even a DVB player, (with TNT function) of any missing TNT mux (R1 and/or R2, etc..) containing specific associated channels, regardless of the site or transmitter (158 transmission or retransmission points in France, as of 1.7.2008), but in a reception mode called individual antenna..
Reminder Composition of multiplexes (or "mux "):
R1: France 2, 3, 5, Arte and LCP
R2: I-télé, Direct 8, BFM TV, Gulli, Virgin 17, France 4
R3: € group C+
R4: M6, W9, NT1 and €= TF 6 Paris Première and AB 1
R5*: TVHD, TF1, M6, FRANCE2 and ARTE
R6: TF1, NRJ 12, TMC... and €= LCI, Eurosport
R7: Paris (channel 23) IDF 1, NRJ Paris, CAP 24, Demain IdF, ..
R8: in planning....
R9: mentioned!
Nb: recomposition of 2 multiplexes planned for 2008.
R4: M6, W9, TF6 + ARTE HD, €= Paris Première
R6: TF1, TMC, NT1 NRJ 12. (€= LCI, Eurosport and AB1.
* Start of HD broadcasts on October 30, 2008.
Step comment: If, for example, TF1 is not received, generally the same goes for NRJ 12 and TMC, so the problem is more related to the channel but now at the mux level, unlike the "old" analog where each channel had its own frequency.
Note that in areas covered by TNT, 98% of the difficulties encountered with TNT non-reception are attributed to one's own installation and means, unsuitable domestic infrastructure, poorly adjusted; avoid blaming third parties, the CSA, operators, channels, public service, etc. as soon as a minor or major problem arises.. If the signals from the analog channels TF1, France 2 or 3 are already poorly received (somewhat snowy image), generally one will not capture, or will poorly, or with difficulty, the TNT signals...
* : is said when the tuner has detected the particular frequencies/parameters and agrees to memorize them.
RECEIVER OR PROGRAMMING ISSUE?
Foreword:
First check the specific user manual (instruction manual) related to the receiver usually used, type Mpeg 2, external adapter or TV or also recorder with integrated TNT.
There is no universal guide or procedure to make adjustments or manipulations; it is often case by case, even within the same brand. The television, whether it is cathodic, plasma, or LCD, reference xx of brand X, Y or Z, has no influence on TNT reception; the decisive element is the tuner and everything upstream...
If you're not too capable of programming the system, it's preferable to consult a professional, especially when a new TV is delivered. The same goes for connections (e.g., Peritel, HDMI) if several elements are to be connected....
It is therefore necessary to understand the manipulations to perform via the menu, in order to obtain the required parameter settings. If you do not understand a term or explanation, contact your seller again.. for information, the TNT function may be represented by the mention or button "DTV " or "DT" or "D" or "DVB" or "D" or "DVB-T" (digital television - digital terrestrial - digital video broadcasting - terrestrial). As for the mention "A" = "analog" or "analog", it is, everyone will have guessed, for the TV in the now obsolete standards, Secam or Pal.
It is easy to visually distinguish the selected standard; if the screen shows "snow" (or echoes, double contours), i.e., an image with a shimmering of small white/black or red green and blue dots, you are in analog mode, as snow does not exist in digital TNT. If this digital coding standard does not work, the screen remains black, or with artifacts, if on the threshold limit.
First of all, in case of problems, do not hesitate to perform a RAZ* (factory reset).. If in doubt about the functioning, make an exchange. Channels in Mpeg 4 (e.g., in clear or encrypted HD) require an Mpeg 4 adapter and cannot therefore be displayed on a basic receiver or Mpeg 2 television even if the screen shows an identifier such as "LCI" for example.
* Reset or re-initialization: it erases everything that is in memory: duplicates = possible conflicts. Sometimes by unplugging the power cord for a few seconds, the adapter returns to normal operation.
See supplement: https://www.jechange.fr/telecom/internet#p65797 (message n° 2)
Firstly, partial non-reception can come from many causes, in some cases from the television with integrated TNT tuner or from the external adapter or the key or TNT card that does not manage the shift, automatically or manually, in frequency, observed on a few TNT transmitters, a situation now rare and isolated, as manufacturers have been reminded to modify their embedded software.
If after an unsuccessful automatic scan (advised to do a second or even a third to be sure...) one or more multiplexes are still missing, a different approach will need to be taken, in a mode called advanced search, by manually entering the missing coordinates of the 1 or more channels of the 5, 6 or 7 channels (specific frequencies varying from one transmitter to another) of multiplexes R1 to 7, from your transmitter.
If necessary, implement at the nominal frequency, up to + 500 kHz, or subtract - 167 kHz, value to be determined empirically, but always in steps of 166.7 kHz, if the exact value is unknown, for the few rare transmitters and multiplexes in France. For example, nominal frequency "602.000 MHz" = standardized channel 37, adjustable rounded frequencies:
"601.83Mhz " or "602.17 Mhz" or "602.33 Mhz etc.. There is no need to be atomically precise; an error of 30 kHz still allows calibration, but prefer the most accurate display..
Some receivers, recalled to the DVB-T standard (T for Terre), have a display consisting of only 4 digits; in the last example, we implement the closest rounded value. Some televisions with TNT tuner simply indicate in the installation menu the channel number (currently only between 21 and 69) with fine adjustment -/+++. See your user manual.
In principle, one should be able to manually adjust the frequency centering; if unable, carry out either a new software update, or return directly to customer service or exchange... It is also remembered that some adapters (external/integrated) find frequencies more difficultly than others in automatic search, hence the interest of entering the channels or frequencies manually, one by one, which requires, of course, to know the local frequency or channel plan, as appropriate.
Consult the national table that specifies all the channels (frequencies) of the mux of the TNT transmitters and retransmitters in France:
>>> https://tvignaud.pagesperso-orange.fr/tv/tnt.pdf
Nb in Mpeg 2 mode (usual, free TNT) it is unnecessary to implement channels containing only encrypted channels.
See the map of France via Google Earth, on the precise GPS geolocation (location) of TNT transmitters: http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=100957
(zip file >> KML file)
Remarks:
- When purchasing an adapter, avoid those without manual selection buttons on the front, as in case of loss or breakage of the remote control, you will not be able to change channels.. This disadvantage is found in first-price, low (or even mid-range) terminals, around thirty to forty Euros.
- TNT USB keys (SD or HD) or PCMCIA modules with silicon tuners for use in PCs are reputedly less sensitive, meaning that a standard adapter (external or integrated) still works with a weak signal that is just sufficient; they most often do not function anymore. Not recommended, unless good reception level at the input of the key or module. ( ! ) TNT-PC cards can sometimes be slightly more sensitive than USB keys.
Note that the locking may be limited to the mere display of the channel name on a black screen or the display. If this occurs, it means that the tuning system has indeed locked, but the signal is not strong enough.
CAPTURE PROBLEM, MOST OFTEN, PUNTUAL OR PERMANENT..
If despite all these adjustment manipulations nothing is captured or only some multiplexes are captured, the problems are most often attributed to the rooftop antenna rake and/or the coaxial cable. We will try to diagnose the most common causes and attempt to remedy them, but before proceeding, it should be noted that TNT appreciates pure signals (% of errors limited) and those that are not affected in their integrity. First, check the various contacts, at the level of the core and braid, which must never be in contact with each other.
The difficulties observed are either continuous, or on certain days or times, evening, day, night.. but most often on undersized installations, but not always.. for example, depending on weather conditions or climate, in rainy weather, fog, high pressure, summer, winter, temperature.. Thus, it is known that some viewers have been deprived, from one day to the next, of images or sometimes only audio, whereas for several months or weeks, reception was indeed continuous... !! If you fall into this category, your situation is not exceptional... moreover it risks occurring from time to time, especially during the summer months in certain regions of France, along the coast or across the large N/O quarter of France. (normal, sporadic and erratic propagation phenomena from distant transmitters at long distance)
THE NERVE OF THE WAR
Is the rake antenna standard UHF, that is to say for all TNT channels, from channel 21 to channel 69 or from 470 to 860 MHz. Be careful, many old rake antennas for receiving Analog Terrestrial TV (TAT) only cover half of the UHF band (e.g. 21 to...
ISSUES WITH PARTIAL OR GLOBAL TNT RECEPTION OF MULTIPLEXES, OR RANDOM AND DIFFICULT CAPTURES. (Updated 1.7.2008)
Main areas of research (identifying problems) for locking* issues on the adapter (decoder) or appropriate television, or on a computer, or on a DD recorder, or even a DVB player, (with TNT function) of any missing TNT mux (R1 and/or R2, etc..) containing specific associated channels, regardless of the site or transmitter (158 transmission or retransmission points in France, as of 1.7.2008), but in a reception mode called individual antenna..
Reminder Composition of multiplexes (or "mux "):
R1: France 2, 3, 5, Arte and LCP
R2: I-télé, Direct 8, BFM TV, Gulli, Virgin 17, France 4
R3: € group C+
R4: M6, W9, NT1 and €= TF 6 Paris Première and AB 1
R5*: TVHD, TF1, M6, FRANCE2 and ARTE
R6: TF1, NRJ 12, TMC... and €= LCI, Eurosport
R7: Paris (channel 23) IDF 1, NRJ Paris, CAP 24, Demain IdF, ..
R8: in planning....
R9: mentioned!
Nb: recomposition of 2 multiplexes planned for 2008.
R4: M6, W9, TF6 + ARTE HD, €= Paris Première
R6: TF1, TMC, NT1 NRJ 12. (€= LCI, Eurosport and AB1.
* Start of HD broadcasts on October 30, 2008.
Step comment: If, for example, TF1 is not received, generally the same goes for NRJ 12 and TMC, so the problem is more related to the channel but now at the mux level, unlike the "old" analog where each channel had its own frequency.
Note that in areas covered by TNT, 98% of the difficulties encountered with TNT non-reception are attributed to one's own installation and means, unsuitable domestic infrastructure, poorly adjusted; avoid blaming third parties, the CSA, operators, channels, public service, etc. as soon as a minor or major problem arises.. If the signals from the analog channels TF1, France 2 or 3 are already poorly received (somewhat snowy image), generally one will not capture, or will poorly, or with difficulty, the TNT signals...
* : is said when the tuner has detected the particular frequencies/parameters and agrees to memorize them.
RECEIVER OR PROGRAMMING ISSUE?
Foreword:
First check the specific user manual (instruction manual) related to the receiver usually used, type Mpeg 2, external adapter or TV or also recorder with integrated TNT.
There is no universal guide or procedure to make adjustments or manipulations; it is often case by case, even within the same brand. The television, whether it is cathodic, plasma, or LCD, reference xx of brand X, Y or Z, has no influence on TNT reception; the decisive element is the tuner and everything upstream...
If you're not too capable of programming the system, it's preferable to consult a professional, especially when a new TV is delivered. The same goes for connections (e.g., Peritel, HDMI) if several elements are to be connected....
It is therefore necessary to understand the manipulations to perform via the menu, in order to obtain the required parameter settings. If you do not understand a term or explanation, contact your seller again.. for information, the TNT function may be represented by the mention or button "DTV " or "DT" or "D" or "DVB" or "D" or "DVB-T" (digital television - digital terrestrial - digital video broadcasting - terrestrial). As for the mention "A" = "analog" or "analog", it is, everyone will have guessed, for the TV in the now obsolete standards, Secam or Pal.
It is easy to visually distinguish the selected standard; if the screen shows "snow" (or echoes, double contours), i.e., an image with a shimmering of small white/black or red green and blue dots, you are in analog mode, as snow does not exist in digital TNT. If this digital coding standard does not work, the screen remains black, or with artifacts, if on the threshold limit.
First of all, in case of problems, do not hesitate to perform a RAZ* (factory reset).. If in doubt about the functioning, make an exchange. Channels in Mpeg 4 (e.g., in clear or encrypted HD) require an Mpeg 4 adapter and cannot therefore be displayed on a basic receiver or Mpeg 2 television even if the screen shows an identifier such as "LCI" for example.
* Reset or re-initialization: it erases everything that is in memory: duplicates = possible conflicts. Sometimes by unplugging the power cord for a few seconds, the adapter returns to normal operation.
See supplement: https://www.jechange.fr/telecom/internet#p65797 (message n° 2)
Firstly, partial non-reception can come from many causes, in some cases from the television with integrated TNT tuner or from the external adapter or the key or TNT card that does not manage the shift, automatically or manually, in frequency, observed on a few TNT transmitters, a situation now rare and isolated, as manufacturers have been reminded to modify their embedded software.
If after an unsuccessful automatic scan (advised to do a second or even a third to be sure...) one or more multiplexes are still missing, a different approach will need to be taken, in a mode called advanced search, by manually entering the missing coordinates of the 1 or more channels of the 5, 6 or 7 channels (specific frequencies varying from one transmitter to another) of multiplexes R1 to 7, from your transmitter.
If necessary, implement at the nominal frequency, up to + 500 kHz, or subtract - 167 kHz, value to be determined empirically, but always in steps of 166.7 kHz, if the exact value is unknown, for the few rare transmitters and multiplexes in France. For example, nominal frequency "602.000 MHz" = standardized channel 37, adjustable rounded frequencies:
"601.83Mhz " or "602.17 Mhz" or "602.33 Mhz etc.. There is no need to be atomically precise; an error of 30 kHz still allows calibration, but prefer the most accurate display..
Some receivers, recalled to the DVB-T standard (T for Terre), have a display consisting of only 4 digits; in the last example, we implement the closest rounded value. Some televisions with TNT tuner simply indicate in the installation menu the channel number (currently only between 21 and 69) with fine adjustment -/+++. See your user manual.
In principle, one should be able to manually adjust the frequency centering; if unable, carry out either a new software update, or return directly to customer service or exchange... It is also remembered that some adapters (external/integrated) find frequencies more difficultly than others in automatic search, hence the interest of entering the channels or frequencies manually, one by one, which requires, of course, to know the local frequency or channel plan, as appropriate.
Consult the national table that specifies all the channels (frequencies) of the mux of the TNT transmitters and retransmitters in France:
>>> https://tvignaud.pagesperso-orange.fr/tv/tnt.pdf
Nb in Mpeg 2 mode (usual, free TNT) it is unnecessary to implement channels containing only encrypted channels.
See the map of France via Google Earth, on the precise GPS geolocation (location) of TNT transmitters: http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=100957
(zip file >> KML file)
Remarks:
- When purchasing an adapter, avoid those without manual selection buttons on the front, as in case of loss or breakage of the remote control, you will not be able to change channels.. This disadvantage is found in first-price, low (or even mid-range) terminals, around thirty to forty Euros.
- TNT USB keys (SD or HD) or PCMCIA modules with silicon tuners for use in PCs are reputedly less sensitive, meaning that a standard adapter (external or integrated) still works with a weak signal that is just sufficient; they most often do not function anymore. Not recommended, unless good reception level at the input of the key or module. ( ! ) TNT-PC cards can sometimes be slightly more sensitive than USB keys.
Note that the locking may be limited to the mere display of the channel name on a black screen or the display. If this occurs, it means that the tuning system has indeed locked, but the signal is not strong enough.
CAPTURE PROBLEM, MOST OFTEN, PUNTUAL OR PERMANENT..
If despite all these adjustment manipulations nothing is captured or only some multiplexes are captured, the problems are most often attributed to the rooftop antenna rake and/or the coaxial cable. We will try to diagnose the most common causes and attempt to remedy them, but before proceeding, it should be noted that TNT appreciates pure signals (% of errors limited) and those that are not affected in their integrity. First, check the various contacts, at the level of the core and braid, which must never be in contact with each other.
The difficulties observed are either continuous, or on certain days or times, evening, day, night.. but most often on undersized installations, but not always.. for example, depending on weather conditions or climate, in rainy weather, fog, high pressure, summer, winter, temperature.. Thus, it is known that some viewers have been deprived, from one day to the next, of images or sometimes only audio, whereas for several months or weeks, reception was indeed continuous... !! If you fall into this category, your situation is not exceptional... moreover it risks occurring from time to time, especially during the summer months in certain regions of France, along the coast or across the large N/O quarter of France. (normal, sporadic and erratic propagation phenomena from distant transmitters at long distance)
THE NERVE OF THE WAR
Is the rake antenna standard UHF, that is to say for all TNT channels, from channel 21 to channel 69 or from 470 to 860 MHz. Be careful, many old rake antennas for receiving Analog Terrestrial TV (TAT) only cover half of the UHF band (e.g. 21 to...
6 answers
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Thank you very much for your response! I will try to make the most of it!
Actually, my problem is with R1 because it only concerns Canal Plus.
I receive it perfectly in analog for its broadcasts, of course. I am not subscribed.
It broadcasts on channel 9. I have nothing at all on TNT.
I will look into it.
Thank you;
Michel.
