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MikroTik RB911G-2HPnD-12S mANTBox - No Channels -1 or -2 ??

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KE8LUN
MikroTik RB911G-2HPnD-12S mANTBox - No Channels -1 or -2 ??

Looking at the MikroTik RB911G-2HPnD-12S mANTBox radio for a permanent AREDN node installation.  I don't see this device on the hardware matrix, but I do see there is another MikroTik RB911 device listed under 5Ghz hardware.

Anyone have any experience or knowledge if the AREDN firmware can be loaded onto this device?

Thanks!

K9CQB
K9CQB's picture
I've flashed several MikroTik RB911 devices and they work fine.

This appears to be just a ​MikroTik RB911G-2HPnD inside an enclosure combined with a 120 degree sector antenna with 12dBi. I've flashed the QRT series and just the plain RB911 boards with the same firmware as the BaseBox 2 & 5 firmware. This should be do-able.
The main advantage to these devices (both in 5GHz and 2.4GHz) is that they are like a 30dBm BaseBox device that have a built-in 120 sector panel antenna, which would save you at least $100 per device if you don't have to buy a separate sector antenna.
I'm all for this, especially seeings how our source of cheap sector antennas dried up (Altelix no longer sells WiFi MIMO antennas).

-Damon K9CQB
 

KB9OIV
I would like to know if you

I would like to know if you are successful with mANTbox device.

kc8ufv
We're working on testing that

We're working on testing that here. I'm sitting right next to LUN in a meeting and the one he received currently appears to only be giving options for channels 1 thru 14. Those also are identified by center frequency instead of channel number.  Also, for installation, that one was unreachable until we allowed it to obtain an address via DHCP. I've got the bare board sitting at home I will be trying as soon as the antennas I ordered arrive. The raw board takes MMCX connectors, instead of the u.FL or RPSMA connectors that are more common. 

Does anyone have any ideas on getting it down to -1 or -2? everything I can see looks like it's the same chip as on the 912-2HPnD in the basebox.

KE8LUN
Yep -  tried loading the

Yep -  tried loading the mANTBox with ​ "aredn-3.19.3.0-mikrotik-nand-large-sysupgrade.bin" and then with the nightly build "​aredn-1190-1272c57-mikrotik-nand-large-sysupgrade.bin", both appeared to be working fine except for the ability to select -1 or -2.  I have attached the support data file for people smarter than me to look at.

Support File Attachments: 
AE6XE
AE6XE's picture
This needs a change to

This needs a change to identify the model string at minimum, then proper channel #s will show.  This is quick to do, hang for a moment...

Joe

KE8LUN
Anybody see a similar problem

Anybody see a similar problem?  This seems like a really great device if the Aredn firmware will work...

AE6XE
AE6XE's picture
You should be able to resolve

You should be able to resolve the issue by editing one file and adding a definition.    Edit the file "/www/cgi-bin/perfunc.pm".   Find the similar entry (already exists) for 911G-5HPnD.   Copy these 9 lines to create the entry for 911G-2HPnD.   Be sure to change rfband, so it now looks like this:

  },
 'Mikrotik RouterBOARD 911G-2HPnD' => {
      'name'            => 'Mikrotik RouterBOARD 911G-2HPnD',
      'comment'         => '',
      'supported'       => '1',
      'maxpower'        => '30',
      'pwroffset'       => '0',
      'usechains'       => 1,
      'rfband'          => '2400',
    },
    'Mikrotik RouterBOARD 911G-5HPnD' => {
      'name'            => 'Mikrotik RouterBOARD 911G-5HPnD',
      'comment'         => '',
      'supported'       => '1',
      'maxpower'        => '30',
      'pwroffset'       => '0',
      'usechains'       => 1,
      'rfband'          => '5800ubntus',
    },

Let me know if that makes everything work, to get into the nightly build.

Joe AE6XE

kc8ufv
Looking good on my board here

Looking good on my board here as well. Did have one instance of a bad config saving that stopped uhttpd and olsrd from starting, but, after finding it, a quick telnet in and the command "firstboot -y && reboot" fixed that, though I had to edit perlfunc.pm again.
 

AC0WN
AC0WN's picture
Hi Joe,

Does this mean we will soon be able to flash the mANTBox 19s   ... aka ... RB921GS-5HPacD-19S-US with the nightly build?

Many thanks,
julie
ac0wn

AE6XE
AE6XE's picture
Sorry, the ​RB921GS-5HPacD

Sorry, the ​RB921GS-5HPacD has the 802.11ac chipset that does not yet have an open source driver that can do 5 and 10 MHz channels or known way to tweak into part 97 channels.   Hopefully one day soon, these hurdles will be jumped over. 

Joe AE6XE

 

AC0WN
AC0WN's picture
Thanks, Joe.

Sorry, guess I should have realized that ... but thank you for the clarification.  :)

Kindest,
julie
ac0wn

KE8LUN
I’ll try that, but how?

So at the risk of sounding stupid, I did a little stumbling around and realized I don't have the slightest idea where to find the file you mentioned. I surmised from looking at other posts that I modify this file on the live node, but I haven't a clue how to actually do that.  Any help would be greatly appreciated.
Thank You!

AE6XE
AE6XE's picture
This will require use of the

This will require use of the vi editor, so would need some familiarity.   If you want to give it a try, there will be lots of online google tutorials out there.  Or I can build an image for you to download -- probably will do that anyway.  

from command line,  "vi /www/cgi-bin/perlfunc.pm"  and do the edit.

Joe

KE8LUN
Looks like it worked!

Figured out how to get to the nodes command line via ssh, then launched the VI editor and made the changes to the perlfunc.pm file.  Rebooted and it looks like everything works!  Lots of new tricks for this dog today...

I'll do more testing of the ​MikroTik RB911G-2HPnD-12S mANTBox this week and post the results.  Hopefully this (and 2 more) will be a good candidate for a permanent node installation.

Thanks for the help!!
 

K6AH
K6AH's picture
3 Nodes on the same channel?

It sounds like you're thinking about setting up 3 collocated nodes on channel -2.  This will not work well... If you want to have a 360° coverage using sector antennas you will want to do it on 5GHz and on channels that have some frequency separation.

Andre, K6AH
 

kc8ufv
This was just an initial

This was just an initial setup. Everyone we're working with at the moment has 2.4GHz equipment. Long term plans are to add 5GHz to the site, and get more permanent sites up, possibly with the 2.4 being repurposed elsewhere. 
 

KE8LUN
11/18 Nightly Build

Just updated my ​MikroTik RB911G-2HPnD-12S mANTBox  with the 11/18/2019 nightly build and everything seems to work correctly.  We'll keep the forum updated on our testing of this radio.
Thanks for the help!

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