morrownr
I bought a NETGEAR A6210 to use with mt7612u, but I have a problem
Hello. I purchased NETGEAR's A6210-100JPS to use the mt7612u in Japan (because it passed the technical standards and was sold in Japan). However, when I investigated, I found out that ・txpower has limitations ・openwrt is not supported I found something like. but, I think that txpower and openwrt are only restricted in the A6210-10000 series such as A6210-10000S, and it does not affect the A6210-100 series, but can it be used in this series? If I cannot use it, please let me know what technical compatible products I can purchase in Japan (available on Amazon) for mt7612u. thank you.
@Ekiben542
I've been sick over last week. It has slowed me down.
I would like to help but you will need to educate me on the specifics of the requirements in Japan.
My review of the NETGEAR's A6210 in the Plug and Play list recommends against AP mode purchase unless your requirement is for same room only due to the limited range of the product. The design evidently limits its range as limited range is not a problem on other mt7612u based adapters.
For an AC1200 class adapter that has proven itself to me over time with OpenWRT, I recommend the Alfa ACM but do not know if it is available to you. If you want to send a link to Amazon Japan, I can take a look around.
@morrownr
@morrownr
If it has the mark in the picture below, it means that you can use it in Japan.
And as a way to check if the product actually has the technical certification,
Go to "https://www.tele.soumu.go.jp/giteki/SearchServlet?pageID=js01"
If you go to the above link, you will see a place to enter the "型式又は名称(or Model or Name)". Basically, do not enter the company name, just the model number, and it will come up (if something comes up, it has technical certification
@Ekiben542
It may be better if I list the adapters by model that I know first hand work well in AP mode and work well with OpenWRT. Then you can input the model number:
ALFA AWUS036AXML (AXE3000) ALFA AWUS036ACM (AC1200) ALFA AWUS036ACHM (AC600)
Adapters that I do not have personal experience with but will likely work well:
PANDA - PAU0B (AC600) ALFA AWUS036AXM (AXE3000)
OpenWRT has packages for the mt7921ac, mt7612u and mt7610u chipsets. The drivers are called mt7921u, mt7612u and mt7610u. The mt7921u driver handles WiFi 6 very well. It can also handle 6 GHz but whether it works well in your country really depends on the the rules in the country and how far along things are. 6 GHz seems to do well in AP mode in the EU but is hit and miss in many parts of the world plus 6 GHz has much less range than 5 GHz.
You could contact Alfa directly so as to find a dealer you can use:
https://www.alfa.com.tw/
To test the NETGEAR A6210 100 series, I tried to see if it works with txpower and openwrt. In conclusion, both txpower and openwrt worked. When he set txpower to 1dbm he got 3dbm, and when he set it to 10dbm he got a solid 10dbm. However, the reception condition is quite poor. I'll try using it just in case. If that doesn't seem possible, I'll contact ALFA.
P.S. After a few minutes, it becomes 18dbm (unusable). I would like to inquire about this as I will be using it for another purpose.
However, the reception condition is quite poor.
Understand. As I said, I have noted the range is limited with this adapter so I recommend using it for AP mode unless it is a same room situation. It is not a problem with the chipset as other adapters with the mt7612u chipset have good range.
Good luck.
Hmm, I've tried asking the question many times, but I can't seem to get it right... (It would be fine if I could, so I tried to beg them to pass the Technical Aptitude Test, but it seems impossible.) What should I do? (I'm considering rtl8812au as an alternative, but what do you think?)
(I'm considering rtl8812au as an alternative, but what do you think?)
The rtl8812au chipset is a good old chipset but I would not recommend it for a new purchase as the Linux out-of-kernel drivers ceased updates in 2021 and it is unlikely we will ever see an in-kernel driver for this chipset. I consider it a dead end.
Have you looked over the adapters shown in the Plug and Play list? The Netgear A8000 is listed. Based on the reports I have seen, it is a much better adapter than the A6210. It is based on the mt7921au chipset. It is not cheap but those who have bought it seem to have good things to say about it. Maybe it is available?
Hmm... I have a question I would like to ask, is it possible to change txpower?
@Ekiben542
I have a question I would like to ask, is it possible to change txpower?
I do not know the answer to this question but possibly @russeree will know as he is the one who wrote the review for the Netgear A8000.
@morrownr
As I was doing my usual research, I found a USB dongle made by COMFAST. Do you recommend this? (I have another question. Is this only available for purchase on Aliexpress? I would like it to arrive in about a week after I buy it, but with Aliexpress it's 1 month.)
As I was doing my usual research, I found a USB dongle made by COMFAST. Do you recommend this?
I don't know. You did not say what adapter that it is? Do you have a link?
I feel sorry. It is CF-953AX.The link is ↓ https://ja.aliexpress.com/item/1005004469569274.html?gatewayAdapt=glo2jpn4itemAdapt
It is CF-953AX.
If memory serves me correctly, that was the first adapter on the market with the mt7921au chipset. I think it came on the market about 1 year and 4 months ago. A lot of Linux users have purchased that adapter. The reports seem to be mostly positive. You might do a search on 953AX as I remember several conversations. For the price, it is hard to go wrong unless the adapter is junk and I don't remember any reports to that effect. It won't be the quality of Alfa adapters but I know of nothing that would cause me to talk you out of buying it.
I would like it to arrive in about a week after I buy it, but with Aliexpress it's 1 month.)
It seems like most buyers get it in less than a month but right now with XMas gifts clogging the shipping channels, who knows.
That adapter is in the Plug and Play list it would not be there if I have been getting negative reports. There are many adapters that could be in the Plug and Play list that are not because of one problem or another.
I have a question I would like to ask, is it possible to change txpower?
I have attempted to change the txpower and always get the same response back from iwconfig - 3 dBm
sudo ifconfig wlx9418653d6a3e down
sudo iw wlx9418653d6a3e set txpower fixed 6dBm
sudo ifconfig wlx9418653d6a3e up
Ah... Understood. Is it okay if I try the following command? sudo iw wlx9418653d6a3e set txpower fixed 6000 thank you. And (this is different) I would like to contact COMFAST (I just want to confirm), but I can't find the email address listed anywhere, but if anyone knows it, I would be happy if you could let me know.
@Ekiben542
For what it is worth: Many modern usb wifi adapters appear to have locked power settings. I have many adapters, it kinda goes with supporting this site. Some adapters seller as well as some adapter makers send me adapters either for pre-production testing or for me to review in the hopes that their adapter will make it into the Plug and Play list. Most don't make it into the list as I am very picky and have rules about multi-state and multi-function adapters as I want the list to only include adapters that give a very high probability of user satifaction.
So, my point being, I know first hand that many adapters have locked power settings. I don't find it to be a problem.
Did you check on the site where you posted the ad for the Comfast 953AX? I'm pretty sure that the owner of that store is also the owner of the Comfast brand.
@morrownr Understood, I'll try to buy it on AliExpress. I have another question: what are the limitations of txpower? (I've heard that it can't be used above 10 dBm, so I just want to confirm).
I have another question: what are the limitations of txpower?
It depends on what is in the regdb for your country.
https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb
@morrownr country JP: DFS-JP (2402 - 2482 @ 40), (N/A, 20), (N/A) (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM (4910 - 4990 @ 40), (N/A, 23), (N/A) (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW (5490 - 5710 @ 160), (N/A, 23), (0 ms), DFS (57000 - 66000 @ 2160), (N/A, 10), (N/A)
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
5 GHz channels 36-48 txpwr max 20
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
5 GHz channels 52-64 txpwr max 20 - DFS
(5490 - 5710 @ 160), (N/A, 23), (0 ms), DFS
5 GHz channels 100-140 txpwr max 23 - DFS
I see. I would like to ask you something, Is that limitation only on the surface and can you change the dbm by actually operating it? @morrownr thank you.
Is that limitation only on the surface and can you change the dbm by actually operating it?
Exactly how txpwr has evolved over the years is a long story but things have gone from relatively simple back in the WiFi 4 and earlier days to very complicated today. With WiFi 5 and later, there is little standardization among countries around the world. Laws vary widely. There have been a lot of things that have been done by makers to try to stay in accordance with the laws so what you can get when buying an adapter can vary by when the adapter was designed and built. Many older designs are still on the market. Some adapters are locked either fully or somewhat. Most modern adapters can vary txpwr but it is controlled by the Linux kernel, not us.
The basic idea in this day in time, if my understanding is correct, is that adapters are built to vary txpwr depending on that country you are in. There has been a realization that people travel so the basic idea is that our computers and phones should get a signal from the AP/router that tells them what country they are in so that the appropriate information can be used by the Linux kernel to adjust the txpwr and other details so that your device works with the laws of the country that you are in.
More or less, modern hardware should adjust the settings for you if everything, to include the AP/router, is modern enough to send the country location information. What it seems that we see is that normally txpwr will be set to what the regdb max is for where you are. When people try to increase txpwr above the max, it will not change... however, if they reduce txpwr to something below max txpwr, it will change and there are situations where a reduction in txpwr works well.
Generally speaking, I ignore txpwr as it should be set for me. I test range and throughput to compare adapters without caring about txpwr. Good range and throughput comes from high quality antennas and amp's.
I see. Well, I'll just wait for it to arrive and let you know when it works.
It arrived today (quite quickly). I also checked the Japanese certification mark in case it was not listed, Kanto Bureau of Telecommunications (the office that coordinates telecommunications in some areas of Japan) I will reply again if I get permission to use it after contacting the Kanto Bureau of Telecommunications (the office that coordinates telecommunications in some areas of Japan).
@morrownr I later realized that my previous CF -953 AX had not passed Japanese certification, so I returned it. I was wondering what to do. The A 8000 caught my eye and I was thinking about buying it second hand. Even used ones cost 13000 yen (about 92 dollars). And if you think you can't change dbm, I rejected it because I was wondering what to do when I bought it by mistake and I wanted to buy it at the lowest price possible. And upon reflection, I'm going to go with the rtl 8812 au chipset because it's sold under a Japanese brand and has been certified by Japan. I know it's a dead end. But I think it's better than getting arrested for using a product that doesn't pass Japanese certification, so I'm going to use this. And I have two concerns. As it stands, I would like you to list the problems with rtl 8812 au. Is the chipset 802.11 ac wave 2? Thank you.
As it stands, I would like you to list the problems with rtl 8812 au.
With managed and master modes, there are not many problems at all. With monitor mode, there are some missing features but that only matters if it matters. I don't keep things memorized as far as specific problems go so if you want to ask about specific things you need to work, I'll check. The 8812au driver is, in my opinion, the best out of kernel driver Realtek has ever released. I am currently working on a newer version of the driver in a private repo. I am looking for testers and would like for you to test if you are interested.
Is the chipset 802.11 ac wave 2?
No