<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Alan,<div class=""><br class=""></div><div class="">Very interesting if true. I think it may still be a bit premature to update the site to say AC modems are OK until it can be tested, but if someone ends up getting a new ‘r2’ version and it does work, please let us know and we’ll get it added to the list.</div><div class=""><br class=""></div><div class="">Nigel<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 16, 2021, at 12:57 PM, Alan Dieringer [WX7L] <<a href="mailto:WX7L@westseattlearc.org" class="">WX7L@westseattlearc.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Dear PSDR List Members,<br class=""><div class=""><br class=""></div><div class=""><div class=""><div class=""><font face="tahoma, sans-serif" class="">HamWAN's PDF comparing various devices shows the <span class="gmail-il">QRT</span> <span class="gmail-il">5</span> <span class="gmail-il">ac</span>: </font></div><div class=""><font face="tahoma, sans-serif" class=""> <a href="http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware/antenas_mantbox.pdf" target="_blank" class="">http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware/antenas_mantbox.pdf</a></font></div></div><div class=""><font face="tahoma, sans-serif" class=""><br class=""></font></div><div class=""><font face="tahoma, sans-serif" class="">However, on the webpage <a href="http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware.html" target="_blank" class="">http://hamwan.org/Standards/Component%20Engineering/Client%20Hardware.html</a> it states: <b class="">"<span style="color:rgb(51,51,51)" class="">Avoid Mikrotik's 802.11ac modems. These are incapable of tuning the <span class="gmail-il">5</span> and 10 MHz channels used by HamWAN and are therefore incompatible."</span></b></font></div><div class=""><font face="tahoma, sans-serif" class=""><br class=""></font></div><div class=""><font face="tahoma, sans-serif" class="">It is not unusual to find outdated material relating to electronic devices, and I think this is the case here, so I thought it best to check with the manufacturer. </font>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.</div></div><div class=""><div class="gmail_attr"><br class=""></div><div class="gmail_attr">73</div><div class="gmail_attr">Alan WX7L</div><div dir="ltr" class="gmail_attr"><br class=""></div><div dir="ltr" class="gmail_attr">From: <strong class="gmail_sendername" dir="auto">Rūdolfs P. (Jira)</strong> <span dir="auto" class=""><<a href="mailto:support@mikrotik.com" target="_blank" class="">support@mikrotik.com</a>> </span>Date: Mon, Aug 16, 2021 at 4:33 AM<br class="">Subject: MikroTik support #[SUP-57126]: Question about QRT 5 ac<br class="">To: <<a href="mailto:WX7L@westseattlearc.org" target="_blank" class="">WX7L@westseattlearc.org</a>></div><u class=""></u><div bgcolor="#ffffff" style="letter-spacing:0px;color:rgb(23,43,77);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;line-height:1.429" class=""><div style="color:rgb(153,153,153)" class="">—-—-—-—</div><div style="color:rgb(153,153,153);margin-bottom:30px" class="">Please REPLY ABOVE THIS LINE ^ (for faster response, use our <a href="https://help.mikrotik.com/servicedesk/" target="_blank" class="">support portal</a>).</div><div style="margin-bottom:30px" class=""><div class=""><p class="">Hello,</p><p class="">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-98<b class="">9</b>2) that supports these channel-widths when compared to the old one (QCA-98<b class="">8</b>2). To make sure you are getting the right one, you can ask the distributor to ensure that you will have the <b class="">r2</b> revision, which can be found on the box/case label at the end of serial number, for example - A13B0DXXXXXX/0XX/<b class="">r2</b>.<br class="">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.</p><p class="">Best regards,</p><p class=""> <br class="">Rūdolfs P.</p></div></div></div></div></div>
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