<div dir="ltr">yep i figured that last night.... <div><br></div><div>the arguement was that it was not as open as FSK mode was... i cant see why they have some much against it... </div><div><br></div><div>but oh well, i think they will figure it if LoRa becomes the standard for small sensors</div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-01-03 14:44 GMT+01:00 Mike Stirling <span dir="ltr"><<a href="mailto:mail@mikestirling.co.uk" target="_blank">mail@mikestirling.co.uk</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Some (e.g. daveack) have used it for
tracking as an alternative to RTTY. I don't think they're using
it for <a href="http://ukhas.net" target="_blank">ukhas.net</a>, which is probably what James meant.<br>
<br>
On 02/01/16 20:51, Bo Herrmannsen wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi mike....
<div><br>
</div>
<div>have been thinking... you say that the HAB guys use the
LoRa radio... are you sure about that? was on an IRC chat and
james said that they have rejected it on the grounds that its
not open source</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2015-12-31 11:20 GMT+01:00 Mike
Stirling <span dir="ltr"><<a href="mailto:mail@mikestirling.co.uk" target="_blank">mail@mikestirling.co.uk</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Hi Bo,<br>
<br>
The MAC layer (LoRAWAN), which I think Jeremy is
referring to, is a public spec, but the underlying
modulation is not. You can therefore currently only
implement a LoRA system using one of Semtech's radios or
a module based on their IP (e.g. Microchip). The
modulation is some sort of chirp spread spectrum system
so is non-trivial to reverse engineer, but efforts are
ongoing in the community. Once that happens it would be
possible to implement the physical layer in a software
radio if that's what you want.<br>
<br>
Note that you can use a LoRA radio without the LoRAWAN
MAC (as the HAB guys currently do). In this case it
just becomes a proprietary data pipe like the RFM22B or
RFM12, but with longer range.<br>
<br>
Mike<br>
<br>
On 29/12/15 10:03, Jeremy Poulter wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">From what I understand there is a
component that is signed and you can not change it but
I believe the source will be available at some point.
This is the component that deals with the time slicing
and transmitting so you can not send more than you are
supposed to.
<div><br>
</div>
<div>Jeremy</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 28 December 2015 at 13:37,
Bo Herrmannsen <span dir="ltr"><<a href="mailto:bo.herrmannsen@gmail.com" target="_blank"></a><a href="mailto:bo.herrmannsen@gmail.com" target="_blank">bo.herrmannsen@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi
<div><br>
</div>
<div>on the topic of using LoRa i have been told
that parts of it are closed source in the way
that you send data off by AT commands and then
"magic" happens</div>
<div><br>
</div>
<div>Have i been told wrong?</div>
</div>
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