<div dir="ltr">Hello,<div><br></div><div>For WiFi we just default to channels 1-11 on 2.4GHz, as that is the only WiFi band we are using. It is the 900MHz band where the differences are much greater (868MHz in Europe vs 902-925MHz in USA, 912-928 in Australia, 921-928 in NZ, 917-923 or something odd like that in Israel etc). Thus, while I would love it if there was a functional minimum set of parameters, this is not the case for us.</div><div><br></div><div>Paul.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Aug 6, 2016 at 11:40 AM, David Lang <span dir="ltr"><<a href="mailto:david@lang.hm" target="_blank">david@lang.hm</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Fri, 5 Aug 2016, Juliusz Chroboczek wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
LiPo batteries with JST-PH connectors are available in every toy store,<br>
but I have no idea about LiFePO4. I suggest you go to your local toy<br>
store (pick one with expensive model planes), and check what's readily<br>
available (as opposed to what needs to be ordered).<br>
</blockquote></blockquote>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Yes, LiPo can work, in which case a regular USB LiPo battery pack is the<br>
simplest solution we would aim for there I think.<br>
</blockquote>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
The LiFePO4 specification came from some further requirements that have not<br>
been discussed yet, in particular, around safety and longevity of the<br>
batteries.<br>
</blockquote>
<br>
Don't speak to us, speak to the people who build model planes and other<br>
fancy toys. They know what they're doing, and their market is very<br>
sensitive to price.<br>
<br>
(And listen to what they have to say.)<br>
</blockquote>
<br></span>
Model aircraft have much higher current requirements, and much lower time requirements for their batteries.<br>
<br>
They also don't directly have to worry about rapidly getting a bunch of devices into a country from a standing start.<br>
<br>
so far, only the EU has any policies requirng APs to be locked down, so only the EU versions of the devices would not be directly flashable with third party software.<br>
<br>
I don't like the idea of special power cords, but I also don't like the idea of having to have two plugs, one for power and one for the regulatory domain.<br>
<br>
I will point out that the regulatory domain does not have to be set. Linux defaults to the least common denominator of all the regulatory domains by default. If you use a separate power vs regulatory dongle, you could have no dongle == worldwide safe and then dongles would only be needed to enable additional local channels/power.<br>
<br>
yes this means you don't get channels 12 and 13 in Japan, but in practice, channel 11 and 13 are too close together so having 12 and 13 available really doesn't give you a fourth usable channel.<br>
<br>
on 5GHz, the value of country specific settings is FAR more significant, and there, most places will benefit significantly from local settings. But with 2.4GHz and 900MHz, it may be that it's just not worth bothering.<span class="HOEnZb"><font color="#888888"><br>
<br>
David Lang</font></span><div class="HOEnZb"><div class="h5"><br>
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