Dear PSDR List Members,

HamWAN's PDF comparing various devices shows the QRT 5 ac:

http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware/antenas_mantbox.pdf

However, on the webpage http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware.html it states: "Avoid Mikrotik's 802.11ac modems. These are incapable of tuning the 5 and 10 MHz channels used by HamWAN and are therefore incompatible."

It is not unusual to find outdated material relating to electronic devices, and I think this is the case here, so I thought it best to check with the manufacturer. Below is the response from MikroTik Support confirming that the new version of the QRT 5 ac also supports 5 and 10 MHz band widths because of a new chipset in the "r2" revision. Just need to make sure you don't get the old version.

Alan WX7L

From: Rūdolfs P. (Jira) <support@mikrotik.com> Date: Mon, Aug 16, 2021 at 4:33 AM
Subject: MikroTik support #[SUP-57126]: Question about QRT 5 ac
To: <WX7L@westseattlearc.org>

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Please REPLY ABOVE THIS LINE ^ (for faster response, use our support portal).

Hello,

Apologies for the delayed response. QRT 5ac is quite a unique situation. After additional investigation regarding the support of 5/10Mhz channel-width, I can say that, if you buy the router today, it should support these channel-widths. It has two public revisions, where the newer one (/r2) has a different wireless chipset (QCA-9892) that supports these channel-widths when compared to the old one (QCA-9882). To make sure you are getting the right one, you can ask the distributor to ensure that you will have the r2 revision, which can be found on the box/case label at the end of serial number, for example - A13B0DXXXXXX/0XX/r2.
I will make sure to update the Web description of the QRT 5ac, as it currently shows that it has QCA-9882 wireless chip and the older one is long discontinued.

Best regards,

Rūdolfs P.