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5 MHz Channel Width for MikroTik LHG 5 AC XL

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VE7VPG
5 MHz Channel Width for MikroTik LHG 5 AC XL
Hi There,
 
I would appreciate help as I need to have a 5 MHz channel width to connect to the node  “VE7MIR-KU-Rptr-NW” some 50 km from my location.  Connecting with this node has been tested from my location with a MikroTik LGH 5 XL node and a SNR of 27 dB was obtained.
 
See page 1 of the attached file "MikroTik_LHGXL5AC_5MHz_ Forum_Submission.pdf" which provides details of the node I wish to connect to.  Note that the SSID is “AREDN-5-v3” indicating a 5 MHz channel width.
 
My node is MikroTik LGH XL 5 ac (RBLHGG-acD-XL).  The firmware loaded is 3.24.6.0 with the kernel and system files taken from “MikroTik RouterBOARD LHG 5 AC XL” listed below:
 
aredn-3.24.6.0-ipq40xx-mikrotik-mikrotik_lhgg-5acd-xl-initramfs-kernel.bin
aredn-3.24.6.0-ipq40xx-mikrotik-mikrotik_lhgg-5acd-xl-squashfs-sysupgrade.bin
 
My node status page is shown in page 2 of the attached file "MikroTik_LHGXL5AC_5MHz_ Forum_Submission.pdf".  The firmware and model matches the hardware and firmware used.
 
Page 3 of the attached file "MikroTik_LHGXL5AC_5MHz_ Forum_Submission.pdf" shows that the channel width options on my Node's firmware are either 10 MHz or 20 MHz.  5 MHz is not an option.
 
To connect to “VE7MIR-KU-Rptr-NW” a 5 MHz channel width is needed.
 
Can a 5 MHz channel width be provided in the nightly build of the “MikroTik RouterBOARD LHG 5 AC XL”firmware?
 
73
Derek
VE7VPG
w6bi
w6bi's picture
Mikrotik and 5 MHz BW
This is a known issue with Mikrotik hardware; it's sadly unrelated to whatever software it happens to be running

Orv W6BI
 
AB7PA
The known issue is documented here
The known issue is documented here: https://docs.arednmesh.org/en/latest/appendix/known_issues.html (#41)

Also, because the 5 MHz channel width is not supported on the LHG 5ac driver, you are not allowed to select it from the dropdown list, which allows only the 10 & 20 MHz channel widths.  (from /etc/radios.json on the node)
"mikrotik lhg 5 ac xl (rblhgg-5acd-xl)": {
    "maxpower": 25,
    "bandwidths": [ 10, 20 ],
    "antenna": {
      "description": "27 dBi 7° Dish",
      "gain": 27,
      "beamwidth": 7
    }
VE7VPG
Thanks for the reply and
Thanks for the reply and reference.  I appreciate the reference

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