Wifi 2.4 and 5 GHz - The difference between signal strength and range

Hello.
In one of the foreign forums I read the information that 5GHz WiFi has a more stable signal than 2.4GHz, but 2.4GHz usually has a greater range.
Is it true? I've always been told that 5GHz performs incomparably better in all respects than 2.4GHz.
I am asking because my tablet works in the 2.4GHz 802.11n standard, but I have a 5GHz 802.11n network at home. Therefore, the question is whether changing the network to 2.4Ghz, not "showing" the matter?

The easiest way to translate:
There are a lot of 2.4 GHz networks in blocks of flats and cities and the air is therefore very "noisy" at this frequency. Networks are often "arguing" and transmission can be unstable. On 5Ghz it is much "cleaner".

If you live off the beaten track, there are no other networks nearby and the ether is relatively clean, you can achieve greater range at 2.4GHZ.

Of course, in both cases you have to choose the right channel and properly place the router / AP. You can check inSSIDer or netstumbler for the number of networks in the vicinity and the occupation of channels.

edit:
BTW, what router do you use at home? Because for home applications there are usually routers / APs working only at 2.4GHz, or newer designs that have two 2.4GHz + 5Ghz radios.

I have AirLive G.DUO - that is 2.4GHz.

Added after 4 [minutes]:

As I wrote, I have AirLive G.DUO 2.4Ghz.
But the operator changed the antenna outside the window to 5Ghz.

I understand now that the network actually works at a frequency of 2.4. So why did they change my antenna, which was originally also 2.4?

Quote:

I am asking because my tablet works in the 2.4GHz 802.11n standard, but I have a 5GHz 802.11n network at home.

Well, you have no problem, because AirLive G.DUO has two radios, but both work at 2.4GHz and BTW in 802.11g, not 802.11n as you thought.

Added after 2 [minutes]:

caton17 wrote:

But the operator changed the antenna outside the window to 5Ghz.

I understand now that the network actually works at a frequency of 2.4. So why did they change my antenna, which was originally also 2.4?

Are you sure that the device outside the window is not sometimes the antenna in which the provider's AP is built-in and the signal to your router does not go through the usual twisted pair?
It is not possible that someone would give a 5GHz antenna to 802.11g.

I will check the antenna. I guess it is 5Ghz after all. They wanted to give me a router too, but I had my own. So that's probably why it came out this way.

Summarizing the topic:

1. My network works 2.4Ghz in the G standard (because this is my router)
2. The tablet can only work in the 2.4Ghz G and N standard.

3. So if you want to use a tablet in the 2.4Ghz N standard, it does not matter if you buy a 2.4 N or 5 N router?

If the ether is reasonably clear in your area, take 2.4.

If there are many other networks in the area, you can buy 2.4 + 5, but such devices are quite expensive at the moment.

You will probably not get a router with 5GHz only for home use, and even if you do, you will not be able to connect laptops, smartphones and tablets that work only on 2.4.

To sum up, I recommend some 802.11N 2.4GHz router in MIMO technology with 2 or 3 antennas.

Thanks, I think I will.
The last question. Now I have a layout:

Antenna outside the window - lan cable from antenna to router - from wifi router

Will the MIMO function in the router (for this network system, what I have now) do something or is it rather an investment for the future?
From what I have heard about my ears, it is an entry and an exit, but honestly I do not take it to the end.

Single-antenna 802.11n routers have a theoretical throughput of up to 150Mbps
Routers with more than one antenna with MIMO have a speed of 300 or 450Mbps and a better range. Already now, many devices, e.g. new laptops have two antennas, so if you have such equipment, it will definitely be useful, files in the LAN, e.g. large movies, will be quickly copied from one device to another, much faster than through a USB flash drive.
If you do not have a very large house (and you do not need such a range), or you do not need such transfers, you can also buy a much cheaper device with one antenna, i.e. N 150Mb / s. Your choice.

Added after 3 [minutes]:

And do not worry about this antenna outside at all, because it is not part of your home network, it is already a matter for the operator (as long as the twisted pair comes out of it and not the antenna cable).

However, I will invest in something with MIMO. The prices are affordable.
Thanks for clarifying the topic.

I am looking for good equipment to set up such a connection. I want to transmit the Internet signal by radio with the least possible losses over a distance of about 100m, the antennas will see each other without any obstacles. The link is with UPC, speed 120/20 Mb / s. Basically, I am renting a piece of flooring and a UPC socket from a friend , the contract for the entire service and the link will be for me, so I do not share it with anyone. Unfortunately, our building has no UPS or any other cabling and it looks like it won't be long yet. Priority is the transmission with minimal losses, and to keep it running smoothly, I don't want to bother him with my phones for a daily restart of the equipment In our building, the load will be quite large (it's a small hotel), up to a dozen devices at the same time, even at the same time, although the average traffic is 6-8 computers. Well, but here we have access to devices on "our" side every day, including a switsh that distributes the signal to several hotel rooms. The price is important of course, but the more important criterion is failure-free operation, tightness, low speed losses, and probably a good soft for configuration. I will be very grateful for any tips on the selection of equipment. The first question that arises is what frequency should this signal be used for, 2.4 or better 5Ghz. Urban, compact buildings, also in the air, are happening a bit :)

For example, would such antennas meet the requirements, or does it make no sense to pack in such large devices over such a short distance?
http://yagi.pl/antena-paraboliczna-dualdish-5ghz-24dbi-p-1766.html
http://yagi.pl/antena-paraboliczna-29hv-5ghz-p-1491.html

greetings
Marcin

You duplicate the topic, read https://www.elektroda.pl/rtvforum/topic2692297.html This is a similar problem with yours. Let go of the company's products on Y near Tarnów. This is not the league like Mikrotik, Ubiquiti or Cyberbajt.

quinty wrote:

If the ether is reasonably clear in your area, take 2.4.

If there are many other networks in the area, you can buy 2.4 + 5, but such devices are quite expensive at the moment.

You will probably not get a router with 5GHz only for home use, and even if you do, you will not be able to connect laptops, smartphones and tablets that work only on 2.4.

To sum up, I recommend some 802.11N 2.4GHz router in MIMO technology with 2 or 3 antennas.

Laptop, smartphone and tablet for 2.4 ghz, and which works on 5 ghz (to be able to use the internet at 5 ghz)