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tatsuya46
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Joined: 03 Jan 2010
Posts: 7410
Location: YWG, Canada

PostPosted: Fri Dec 06, 2019 2:20    Post subject: Reply with quote
blkt wrote:
Modern routers hardware lock the transmit power with preset table values per country. All you can do is set the channel and let it adjust for you. You can ignore that setting as it's basically a vestige of the past.


its not vestige, there are some nations that dont allow certain channels cause...... government. and we dont like that. such as canada, haiti has all the usa channels, with higher tx power. now if the user chooses to "violate their laws and fight the law", up to him/her. just saying whats available and what isnt.

in english. thats a steaming pile of bull shit

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[x86_64] Haswell i3-4150/QCA9984/QCA9882 ------> r45460 std
[QUALCOMM] DIR-862L --------------------------------> r45460 std
[QUALCOMM] WNDR4300 v1 --------------------------> r45460 std
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msoengineer
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Joined: 21 Jan 2017
Posts: 1620
Location: Illinois Moderator

PostPosted: Fri Dec 06, 2019 5:01    Post subject: Reply with quote
tatsuya46 wrote:
haiti has all the usa channels, with higher tx power.


I guess you haven't looked at Panama lately... FTW... though my R9000 won't go beyond 30.

country PA: DFS-FCC
(2400 - 2483.5 @ 40), (36)
(5150 - 5250 @ 80), (36), AUTO-BW
(5250 - 5350 @ 80), (30), AUTO-BW
(5470 - 5725 @ 160), (30)
(5725 - 5850 @ 80), (36)
(57000 - 64000 @ 2160), (43)

country HT: DFS-FCC
(2402 - 2472 @ 40), (30)
(5170 - 5250 @ 80), (24), AUTO-BW
(5250 - 5330 @ 80), (24), DFS, AUTO-BW
(5490 - 5730 @ 160), (24), DFS
(5735 - 5835 @ 80), (30)

country US: DFS-FCC
(2402 - 2472 @ 40), (30)
# 5.15 ~ 5.25 GHz: 30 dBm for master mode, 23 dBm for clients
(5170 - 5250 @ 80), (23), AUTO-BW
(5250 - 5330 @ 80), (23), DFS, AUTO-BW
(5490 - 5730 @ 160), (23), DFS
(5735 - 5835 @ 80), (30)
# 60g band
# reference: section IV-D https://docs.fcc.gov/public/attachments/FCC-16-89A1.pdf
# channels 1-6 EIRP=40dBm(43dBm peak)
(57240 - 71000 @ 2160), (40)

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blkt
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Joined: 20 Jan 2019
Posts: 2045

PostPosted: Fri Dec 06, 2019 6:22    Post subject: Reply with quote
Alright lol, great responses here. Sure, set it to 30dBm and pray to the wifi gods your max transmit power is granted.

Other things to consider are heat, noise or distortion, interference, errors and retries. But if "up to 11" is your thing, go for it.

msoengineer wrote:
tatsuya46 wrote:
haiti has all the usa channels, with higher tx power.


I guess you haven't looked at Panama lately... FTW... though my R9000 won't go beyond 30.


Maybe R7800 and R9000 hardware sold in the USA are further locked down when compared to other regional markets?
msoengineer
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Joined: 21 Jan 2017
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Location: Illinois Moderator

PostPosted: Fri Dec 06, 2019 14:04    Post subject: Reply with quote
blkt wrote:
Alright lol, great responses here. Sure, set it to 30dBm and pray to the wifi gods your max transmit power is granted.

Other things to consider are heat, noise or distortion, interference, errors and retries. But if "up to 11" is your thing, go for it.

msoengineer wrote:
tatsuya46 wrote:
haiti has all the usa channels, with higher tx power.


I guess you haven't looked at Panama lately... FTW... though my R9000 won't go beyond 30.


Maybe R7800 and R9000 hardware sold in the USA are further locked down when compared to other regional markets?


The hardware in the R7800, EA8500, R9000 all have been designed to run at full power all the time. The concern over heat, while valid, has never been raised here on any of the Atheros routers as causing issues when running at "11". Please don't fear monger....

In terms of the 30dBm limit, my guess is that limit is hard baked into the firmware of the chipsets. Someone with a wifi-6 chipset would need to chime in on this and see if their chipset will allow Panama TX power. No matter, you are correct in your statement that we are at the mercy of the designers of the chipset to allow even 30 dBm. It's for this reason why Marvell really blows followed by Broadcom.

And, lastly, let's not forget why you're on these forums and using custom firmware in the first place. You want to eek out the best from your hardware...so why not have the right info out there to help guide people?

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TIPS/TRICKS: Best QCA Wifi Settings | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]45478 nightly (Main Router)
[EA8500]43192 & 45417 (2xOffsite)
[R7800]napping
[WDR3600]BS 44715 (Offsite)
[A7v5]BS 43038 (Offsite+spare napping)
KILLERDOG
DD-WRT User


Joined: 05 Oct 2010
Posts: 65

PostPosted: Fri Dec 06, 2019 15:46    Post subject: Reply with quote
Wow, all very good points. And the last point in very good : we all put DD-WRT in our router so we can squeeze every bit of power out of our machines and give oursellfs more options to choose from. Stock firmware sucks....
kernel-panic69
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Joined: 08 May 2018
Posts: 7610
Location: Texas, USA

PostPosted: Fri Dec 06, 2019 15:58    Post subject: Reply with quote
Some folks are not aware of the (still) present hidden config pages in certain stock firmware. How do you think HyperWRT -> Tomato / Sveasoft -> DD-WRT / OpenWRT got this stuff? It didn't just magically appear, some, if not most all of it was already there. You can thank Linksys and Broadcom for that, mostly. Rolling Eyes Wink
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blkt
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PostPosted: Sat Dec 07, 2019 7:57    Post subject: Reply with quote
msoengineer wrote:
The hardware in the R7800, EA8500, R9000 all have been designed to run at full power all the time. The concern over heat, while valid, has never been raised here on any of the Atheros routers as causing issues when running at "11". Please don't fear monger....

msoengineer wrote:
And, lastly, let's not forget why you're on these forums and using custom firmware in the first place. You want to eek out the best from your hardware...so why not have the right info out there to help guide people?

I was listing all the possibilities. I think it's equally important to point out that more power isn't always better.

I do think these routers have among the best radios in the consumer market.
kernel-panic69
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Joined: 08 May 2018
Posts: 7610
Location: Texas, USA

PostPosted: Sat Dec 07, 2019 12:19    Post subject: Reply with quote
Some folks also fail to realize that had Broadcom not even made the market, nothing else would likely exist. Fair competition and all that shit. I could type out a wireless networking history lesson here, but I won't. WaveLANDiego existed before the first WRT54* hit the shelves, methinks.
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msoengineer
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Joined: 21 Jan 2017
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Location: Illinois Moderator

PostPosted: Mon Dec 09, 2019 16:56    Post subject: Reply with quote
kernel-panic69 wrote:
Some folks also fail to realize that had Broadcom not even made the market, nothing else would likely exist. Fair competition and all that shit. I could type out a wireless networking history lesson here, but I won't. WaveLANDiego existed before the first WRT54* hit the shelves, methinks.


The very first wifi I can remember were those WaveLan Orinoco cards in 2000-2001...I remember setting up a wifi system using a PC and several wifi cards connecting back to the PC.... Ah the memories... Then D-Link came out with some Super-G cards.... It's amazing how far it's all come.

https://en.wikipedia.org/wiki/WaveLAN

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FORUM RULES

TIPS/TRICKS: Best QCA Wifi Settings | Latency tricks | QoS Port priority | NEVER USE MU-MIMO |
Why to NOT use MU-MIMO | Max Wifi Pwr by Country | Linux Wifi Pwr | AC MCS & AX MCS | QCA 5Ghz chnls to use | WIFI Freq WIKI | TFTP R7800 | Don't buy AX | IPERF3 How-To

[R9000]45478 nightly (Main Router)
[EA8500]43192 & 45417 (2xOffsite)
[R7800]napping
[WDR3600]BS 44715 (Offsite)
[A7v5]BS 43038 (Offsite+spare napping)
kernel-panic69
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Posts: 7610
Location: Texas, USA

PostPosted: Mon Dec 09, 2019 18:42    Post subject: Reply with quote
I might or might not get in trouble here: https://neurospeed.com/wlan/wlan.htm

WaveLAN/WaveWAN-Diego. My Linux mentor and a few other folks, whose faces escape me for the ones I have met while I was stationed in San Diego during the late 90s and early 2000s. The project was during the infant years of wireless. I initially met Eric (bilcat) at a LAN party in San Diego to play some Quake. I passed by his server rack, the suitcase, and something caught my eye. Slackware 3.3 was my first distro (RedHat 4.2 was second) and the rest is history, as the cliche goes. Anyhow, yeah, I remember when they built the first two links and got them working. It was some crazy neat stuff. So, yes, I know exactly what you're talking about Wink Cool I was meaning in the soho wireless networking / router market, though. I don't recall anyone else having anything going off the top of my head is all. I've slept and consumed adult beverages since then.

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