[OpenWrt-Devel] QCA9994 outdoor 13km link

Ben Greear greearb at candelatech.com
Wed Sep 25 11:20:40 EDT 2019


On 9/25/19 8:14 AM, support at maxnet.al wrote:
> This is long distance, 5km with 4 dishes on each side. They are all vertical and all chains have signal range -60 to -65.
> 
> I don't have omni antennas. Is there a problem that i am using dishes?

I have no idea, but at the very least, you should document your setup when
complaining of bad throughput or any other problem.  Compare good vs bad situations to see what
is the difference.

That way someone who has actually tried this sort of thing might be able to
offer suggestions.

Thanks,
Ben

> 
> 
> 
> On Wed, Sep 25, 2019 at 5:11 PM +0200, "Ben Greear" <greearb at candelatech.com <mailto:greearb at candelatech.com>> wrote:
> 
>     Is this short distance or long?
> 
>     Please try short distance with omni antenna first to make sure you are not hitting the delayed-ack issue
>     or problems with your antenna.
> 
>     Change your antenna orientation so that they point in different directions.
> 
>     Thanks,
>     Ben
> 
>     On 9/25/19 6:49 AM, support at maxnet.al wrote:
>     > Hello,
>     > 
>     > Today i managed to connect the station wds at 80MHz channel. Signal is -56 and i have very low datarates. I have attached a photo.
>     > 
>     >   When station was ddwrt and AP openwrt the datarates were 866/433. TX won't do more than VHT-NSS 1 although RX it's not good either because it's a 4 chain 
>     > radio and it should do VHT-NSS4.
>     > 
>     > Thank you,
>     > Klevis
>     > 
>     > 
>     > 
>     > 
>     > On Mon, Sep 23, 2019 at 6:36 PM +0200, "Ben Greear"  > wrote: > > Weeks or months or whenever I have time, and maybe sooner if someone > wants to sponsor it. Please understand I, and probably everyone else
>     working > on OpenWRT, am busy with lots of other projects and community work often > gets pushed to the back burner. > > Thanks, > Ben > > On 9/23/19 8:18
>     AM, support at maxnet.al wrote: > > Hi Ben, > > > > When do you think you might be able to make those changes to your driver? > > > > Thanks, > > Klevis. > > >
>      > > > > > On 2019-09-20 13:00, Ben Greear wrote: > >> On 9/20/19 12:55 PM, Vincent Wiemann wrote: > >>> Hi Klevis, > >>> > >>> have you tried it with a
>     short distance? > >>> If you did you should better ask Ben Greear directly. > >> > >> I asked him to post publicly so that others can help answer and that >
>      >> my own answers might > >> help someone else. > >> > >> I have some patches that should enable coverage class settings for > >> wave-2, but I am too busy
>      > >> with other things right now to port them to my ath10k-ct driver/firmware. > >> > >> Thanks, > >> Ben > >> > >>> > >>> By the way ath10k gen 2 chipsets
>     don't work very well with long distance links without a > >>> special feature which implementation is only available to companies like Ubiquiti and very few
>      > >>> people who have an own reverse-engineered implementation. > >>> It works on IPQ401X, QCA9886 and QCA9888 based chips only. > >>> > >>> And it is not
>     possible to set a coverage class for gen 2 devices, yet as far as I know due to missing > >>> documentation and implementation (correct me if that
>     information is outdated). > >>> Furthermore a high channel width often results in problems > >>> due to lower receiver sensibility. > >>> We have better
>     experiences with lower channel widths and sometimes get more throughput with that. > >>> > >>> Actually I think this does not explain your connection issues
>     as 13 km is not that much. > >>> > >>> Regards, > >>> > >>> Vincent Wiemann > >>> > >>> On 20.09.19 18:30, support at maxnet.al wrote: > >>>> Hello everyone, >
>      >>>> > >>>> I am trying to setup a custom made outdoor link with Apu2d2 board devices and QCA9994 cards from compex. After i installed openwrt and ath10k
>     ct driver, > >>>> kmod ath10k and board-2.bin the device can run a 80MHz channel in WDS AP. The problem is that it won't run as station or station wds. It
>     can scan > >>>> the SSIDs but won't connect them. > >>>> > >>>> Any suggestion? > >>>> > >>>> Thank you! > >>>> Klevis > >>>> > >>> > >>>
>     _______________________________________________ > >>> openwrt-devel mailing list > >>> openwrt-devel at lists.openwrt.org > >>>
>     https://lists.openwrt.org/mailman/listinfo/openwrt-devel > >>> > > > > > -- > Ben GreearCandela Technologies Inc http://www.candelatech.com > -- Ben Greear
>     Candela Technologies Inc http://www.candelatech.com
> 


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


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