I bought a new Samsung UE32M5572 TV that has a built-in digital terrestrial tuner, with the intention of connecting a directional antenna. I live in the Silesian Voivodeship, the antenna is directed to the south.
After searching for the automatic channels, it turned out that the TV set found only 8 channels plus some test channels.
The antenna I use is a DVB-T YAGI 21-69 outdoor directional antenna with a balun. Coaxial cable connected directly from the antenna balun to the TV socket.
So far, on an old CRT TV with an external Ferguson Ariva T65 decoder, I caught almost thirty channels plus a few Czech channels and a few test channels on the same antenna, in the same setting. The only thing I changed was the antenna coaxial cable from the old set-top box to the new TV set.
I tried to search for channels on the new TV several times automatically and in manual mode by entering the channel number - to no avail. The antenna is attached outside the third floor window pointing into the free space between the blocks. I turned the antenna a few degrees in the range of about 20-30 degrees again searching for programs. The effect was that I caught one or two new channels on the new TV and lost the others. Let me remind you that by connecting the old decoder at this point, I still catch all the channels from MUX 1, 2, 3 and 8.
When checking the signal quality on the same channel on the TV and in the old set-top box, I can see a significant difference:
DSC_02..JPG Download (1.21 MB)
signal strength 3%, signal quality 16% on the new Samsung TV,
DSC_02..JPG Download (696.52 kB)
80% signal quality on the old Ariva decoder with the same antenna orientation.
I suspect, however, that the signal is not as weak as the information suggests because the image is perfect and there are no signs of a weak signal - no colored squares as in the case of errors in the reception of the digital signal. Some channels that I receive on the tuner of the new TV show the signal strength of 100%.
While writing the topic, I discovered that the Ariva decoder probably has some built-in amplifier, after turning off the "antenna power" option in the decoder menu, I lose all channels - no signal or a weak signal. And after searching again, I only have the same channels as on the new TV.
DSC_02..JPG Download (322.28 kB)
This could suggest a solution to the problem.
Perhaps the TV tuner also has such an amplifier, but I have not yet found such an option, I have not fully figured out the menu of this TV. If someone is the owner of a similar model and knows for sure whether there is such an option or not, please let me know.
However, if it turns out to be necessary to connect an amplifier, please instruct me on what such device looks like and how it is connected. (I don't know anything about it)
After searching for the automatic channels, it turned out that the TV set found only 8 channels plus some test channels.
The antenna I use is a DVB-T YAGI 21-69 outdoor directional antenna with a balun. Coaxial cable connected directly from the antenna balun to the TV socket.
So far, on an old CRT TV with an external Ferguson Ariva T65 decoder, I caught almost thirty channels plus a few Czech channels and a few test channels on the same antenna, in the same setting. The only thing I changed was the antenna coaxial cable from the old set-top box to the new TV set.
I tried to search for channels on the new TV several times automatically and in manual mode by entering the channel number - to no avail. The antenna is attached outside the third floor window pointing into the free space between the blocks. I turned the antenna a few degrees in the range of about 20-30 degrees again searching for programs. The effect was that I caught one or two new channels on the new TV and lost the others. Let me remind you that by connecting the old decoder at this point, I still catch all the channels from MUX 1, 2, 3 and 8.
When checking the signal quality on the same channel on the TV and in the old set-top box, I can see a significant difference:
DSC_02..JPG Download (1.21 MB)signal strength 3%, signal quality 16% on the new Samsung TV,
DSC_02..JPG Download (696.52 kB)80% signal quality on the old Ariva decoder with the same antenna orientation.
I suspect, however, that the signal is not as weak as the information suggests because the image is perfect and there are no signs of a weak signal - no colored squares as in the case of errors in the reception of the digital signal. Some channels that I receive on the tuner of the new TV show the signal strength of 100%.
While writing the topic, I discovered that the Ariva decoder probably has some built-in amplifier, after turning off the "antenna power" option in the decoder menu, I lose all channels - no signal or a weak signal. And after searching again, I only have the same channels as on the new TV.
DSC_02..JPG Download (322.28 kB)This could suggest a solution to the problem.
Perhaps the TV tuner also has such an amplifier, but I have not yet found such an option, I have not fully figured out the menu of this TV. If someone is the owner of a similar model and knows for sure whether there is such an option or not, please let me know.
However, if it turns out to be necessary to connect an amplifier, please instruct me on what such device looks like and how it is connected. (I don't know anything about it)
but without exaggeration).
