Televes TV Antenna 5-way TV Distribution Amplifier 552380
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- Опубліковано 12 вер 2024
- Televes indoor OTA TV Antenna Signal Distribution Amplifier | 5-way Amplified Splitter -TV Antenna Signal Distribution Amplifier 552380 variable gain adjustment TV Antenna Signal Amplifier 5-port Distribution Amplifier. Using a conventional TV signal splitter to distribute a TV antenna signal to multiple televisions in a home can sometimes lead to signal degradation to the point of pixelation and channel loss. A better solution would be to use a distribution amplifier or an amplified splitter, such as the Televes 552380 featured in today's video. This amplifier splits a TV signal 5 ways, providing up to a 16-db boost to each tuner, providing a very robust signal to all televisions connected to your Master TV Antenna (MATV) home system.
Buy Televes 552380 distribution amplifier here (please note the following links are affiliate links and as an Amazon Associate I earn from qualifying purchases)
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A slight correction on dBs:
2 way split -> 1/2 the power -> -3dB
3 way split -> 1/3 the power -> -4.7dB
4 way split -> 1/4 the power ->-6dB
The rule is 10*log10(X) where X is how much the power is reduced by
X is the number of times the signal is split.
@@NorthcoasterHobby Yes, on a good splitter that will be true. Remember that we also have things like how much signal is lost in a long run of cheap cable. That too will be in dB. I have a 12dB amplifier feeding a 4 way split but I don't think I have 6dB left at the end of the cable.
Note for new players:
Because of the way dBs are defined you add and subtract when you combine them and not multiply and divide. An antenna that is good for lets say 6dB followed by an amplifier good for 12dB will give you 18dB more signal than an omnidirectional antenna at the same place.
An antenna can get more signal by being focused in one direction. This is what is meant by a 6dB antenna.
I have 3 antennas for FM/VHF-Hi/UHF, the coaxial cable is 35 meters from the antennas. That splitter is what I need and 16 Db is perfect, I live very close to phone towers and the LTE filter is mandatory.
The problem with some splitters is that it is written 4 or 7 Db attenuation and iwhen you check the signal with a digital meter (AMIKO TSC1270 in my case) it has 10 Db attenuation. From 61 Db on UHF channel it has 51 Db, the longer the cable the worse the signal.
I only recommend amplified splitters with adjustable gain. The classic splitters are best for cable TV or if you live very close to a broadcast tower and have a high gain antenna otherwise it should be used only for cable TV.
Should be compatible with my dual input Televes preamp power supply in case I decide to replace the original one.
@@jayvalentin5513 Yes.
What type of OTA antenna do you use for permanent reception?
I use a larger antenna with long elements for Low-VHF. It’s an Antennacraft Yagi (out of production), and I also have a Channel Master CM-3010 (also out of production). I’ve had them up for at least 10 years. But I’m always putting up and taking down other antennas for testing, so I will probably change it up at some point, most likely to a Televes model with Low-VHF elements.
Just remember not all low channel numbers are broadcasting on low VHF. Most cities broadcast on UHF. Where I live there are a few hi VHF channels . Channel three is on hi VHF in the channel 13 area. There are no low VHF channels in my area. 9 is the lowest broadcast channel. A grey hoverman antenna would work great in my area. The added top and bottom elements will pull in hi VHF. 73
Good thing Europe ditched Low VHF back in the 90s, you had to instal large antennna (even larger than FM Yagi antenna), too many interferences. The only advantage was Dx-ing compared with VHF High and UHF
Hey Northcoaster, I really enjoy your informative videos. I was actually considering this distribution amp instead of a preamp. Would you happen to know the noise figure? I looked through some of the Televes manuals but couldn't find one. Thanks and keep up the great work.
@@user-qt6wn4cp3f Hi there and thanks for reaching out. I looked through the documentation I have for this amplifier and the noise figure is listed as 6 dB, which I would say is excellent. This Televes amplifier has a far superior (lower) noise figure compared to some cheap in-line antenna amplifier. Thanks again for watching my channel!
This amplifier can filter the LTE frequencies of 700MHZ?
Yes.
Not true. On a 3 way one leg has the power cut in half once. On the other two legs the power is cut in half twice.
Correct; -3.5 db and -7 db, -7 db. My point was the significant degradation of signal with a passive splitter in many cases and how much more effective a distribution amplifier like this one is. I was trying to avoid being too technical to keep the video easy to understand for the average viewer.
That is not true of many 3 way splitters. They can split the power evenly to 3 outputs. It is just a matter of how the internal transformer is made.
@@kensmith5694 It depends on the splitter. Not all splitters specify the signal attenuation for each leg. One of the 3-way splitters I have says -3.5 dB, -7,-7. So half, quarter, quarter.
@@NorthcoasterHobby One I have was listed as 5,5,5 when I bought it. I assume it is 4.7 and some loss.
@@kensmith5694 Well according to the formula you mentioned, 10*log10(3)=4.77, that works, but I haven’t seen a splitter labelled with those figures. I always assumed 3-ways were all -3.5, -7, -7, with the-3.5 dB leg meant for the longest cable run. I guess it depends if the splitter is balanced or unbalanced.
did not work for the idea mention returned
What was the problem?
Fantastic explanation, thank you. Wish you were on my team when I was trying to figure out a satellite head-end system in a mining camp 🙄 ("how many IP network techs does it take to screw in a coax?")
😄Thank you, and thanks for watching!