<div dir="ltr">Sure is! He sells a few variants... 868 MHz is europe's version of our 918-928 MHz ISM band, and is funnily enough in a very sensible location (2x 434 MHz, to catch harmonics from bad 434 MHz devices). I suspect the limits would be defined in the software you need to write, so as David has mentioned, you would need to make sure you get that bit right! <div><br></div><div>Be careful of getting confused between LoRa (a 'chirp spread spectrum' modulation scheme, the physical layer), and LoRaWAN (a communications protocol - the 'MAC' layer). All of the LoRaWAN IoT gateways around Australia that I know of are running on 915 MHz, yes. If you're not intending on messing around with LoRaWAN gateways, then there's nothing stopping you from using 434 MHz.</div><div><br></div><div>I'm just using the LoRa modems because they were a convenient way of getting very reliable bi-directional comms going between the cutdown payload and the chase car. I'm not using any of the LoRaWAN stuff (the spec hadn't been released when I started working on the payload), instead I wrote my own binary packet format suited to my application.</div><div><br></div><div>73</div><div>Mark VK5QI</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 8, 2017 at 5:23 AM, Glen English VK1XX <span dir="ltr"><<a href="mailto:glenlist@pacificmedia.com.au" target="_blank">glenlist@pacificmedia.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">the 868 one is illegal in AUstralia.<br>
<span class=""><br>
<br>
On 8/11/2017 6:19 AM, Dave wrote:<br>
><br>
> The Jaycar gateway is a Dragino. I've seen an Aus site with them<br>
> <a href="https://www.iot-store.com.au/collections/iot-networking-comms/LoRa-IoT" rel="noreferrer" target="_blank">https://www.iot-store.com.au/<wbr>collections/iot-networking-<wbr>comms/LoRa-IoT</a><br>
> and at about 2/3 Jaycar prices too.<br>
><br>
> I believe that 915Mhz is recommended in Aus.<br>
><br>
> Dave<br>
><br>
><br>
> On 7/11/2017 7:11 PM, Mark Jessop wrote:<br>
>> Nice descriptive reply there...<br>
>><br>
>> Not quite sure why we're talking about LoRa in the<br>
</span>>> Australian *APRS* list, but anyway...<br>
<div><div class="h5">>><br>
>> Cheap LoRa Arduino<br>
>> Shield: <a href="https://www.seeedstudio.com/Dragino-LoRa-Shield-support-433M-frequency-p-2672.html" rel="noreferrer" target="_blank">https://www.seeedstudio.com/<wbr>Dragino-LoRa-Shield-support-<wbr>433M-frequency-p-2672.html</a><br>
>> (similar available for 915 MHz).<br>
>> LoRa Raspberry Pi<br>
>> Shield: <a href="http://www.dragino.com/products/module/item/106-lora-gps-hat.html" rel="noreferrer" target="_blank">http://www.dragino.com/<wbr>products/module/item/106-lora-<wbr>gps-hat.html</a><br>
>> ... and probably something similar available from Jaycar, I guess?<br>
>><br>
>> We've been using LoRa modules in the Project Horus 'flight<br>
>> termination' payload (which also has GPS tracking) for a few years<br>
>> now. We run them on the 434 MHz ISM band at 25mW, for command &<br>
>> control of the cutdown mechanism (nichrome wire). We have a whole<br>
>> ecosystem of software based around communicating with the cutdown<br>
>> payload and transferring data around the chase car's network.<br>
>> Ground Station: <a href="https://github.com/projecthorus/HorusGroundStation" rel="noreferrer" target="_blank">https://github.com/<wbr>projecthorus/<wbr>HorusGroundStation</a><br>
>> Payload: <a href="https://github.com/projecthorus/FlexTrack-Horus" rel="noreferrer" target="_blank">https://github.com/<wbr>projecthorus/FlexTrack-Horus</a><br>
>><br>
>> Quite a few libraries around to talk to the LoRa ICs (usually a<br>
>> Semtech SX127x series chip).<br>
>> Python Library for use on a Raspberry<br>
>> Pi: <a href="https://github.com/mayeranalytics/pySX127x" rel="noreferrer" target="_blank">https://github.com/<wbr>mayeranalytics/pySX127x</a><br>
>> Arduino Library: <a href="http://www.airspayce.com/mikem/arduino/RadioHead/" rel="noreferrer" target="_blank">http://www.airspayce.com/<wbr>mikem/arduino/RadioHead/</a><br>
>><br>
>> Unfortunately the LoRa modulation scheme is patented, so use of it on<br>
>> the amateur radio band is a bit contentious. At the very least,<br>
>> there's a reverse engineered gnuradio library<br>
>> available: <a href="https://github.com/BastilleResearch/gr-lora" rel="noreferrer" target="_blank">https://github.com/<wbr>BastilleResearch/gr-lora</a><br>
>><br>
>> 73<br>
>> Mark VK5QI<br>
>><br>
>><br>
>> On Tue, Nov 7, 2017 at 5:58 PM, Andrew Rich <<a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.net</a><br>
</div></div><span class="">>> <mailto:<a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.<wbr>net</a>>> wrote:<br>
>><br>
>> Jaycar<br>
>><br>
>> Sent from my iPhone<br>
>><br>
>> On 7 Nov 2017, at 5:13 pm, Justin Albury <<a href="mailto:justin@jacomms.com">justin@jacomms.com</a><br>
</span><span class="">>> <mailto:<a href="mailto:justin@jacomms.com">justin@jacomms.com</a>>> wrote:<br>
>><br>
>>> Whats involved in (hardware) for the LoRA projects??<br>
>>><br>
>>><br>
>>><br>
>>> Any links??<br>
>>><br>
>>><br>
>>><br>
>>> Justin Albury<br>
>>><br>
>>> J Albury Communications<br>
>>><br>
</span>>>> <a href="mailto:justin@jacomms.com">justin@jacomms.com</a> <mailto:<a href="mailto:justin@jacomms.com">justin@jacomms.com</a>><br>
>>><br>
>>> 0417246791<br>
>>><br>
>>><br>
>>><br>
>>> ------------------------------<wbr>------------------------------<wbr>-----<br>
>>><br>
>>> /This email, and any attachments are for the use of the intended/<br>
>>><br>
>>> /recipient(s) and may contain confidential/privileged information./<br>
>>><br>
>>> /If you have received this email in error, please notify the sender/<br>
>>><br>
>>> /immediately and then delete it. If you are not the intended<br>
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>>><br>
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>>> ------------------------------<wbr>------------------------------<wbr>----------------------<br>
>>><br>
>>><br>
>>><br>
>>> *From:*OZAPRS [mailto:<a href="mailto:ozaprs-bounces@aprs.net.au">ozaprs-bounces@aprs.<wbr>net.au</a><br>
>>> <mailto:<a href="mailto:ozaprs-bounces@aprs.net.au">ozaprs-bounces@aprs.<wbr>net.au</a>>] *On Behalf Of<br>
>>> *<a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.net</a> <mailto:<a href="mailto:vk4tec@tech-software.net">vk4tec@tech-software.<wbr>net</a>><br>
>>> *Sent:* Tuesday, 7 November 2017 11:50 AM<br>
>>> *To:* 'Australian APRS Users' <<a href="mailto:ozaprs@aprs.net.au">ozaprs@aprs.net.au</a><br>
>>> <mailto:<a href="mailto:ozaprs@aprs.net.au">ozaprs@aprs.net.au</a>>><br>
>>> *Subject:* [OZAPRS] LoRA tracking<br>
<span class="">>>><br>
>>><br>
>>><br>
>>> Playing with GPS / Arduino and LoRA 915 MHz modules<br>
>>><br>
>>><br>
>>><br>
>>> Andy VK4TEC<br>
>>><br>
>>> ______________________________<wbr>_________________<br>
>>> OZAPRS mailing list<br>
</span>>>> <a href="mailto:OZAPRS@aprs.net.au">OZAPRS@aprs.net.au</a> <mailto:<a href="mailto:OZAPRS@aprs.net.au">OZAPRS@aprs.net.au</a>><br>
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>><br>
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>> <a href="http://lists.aprs.net.au/mailman/listinfo/ozaprs" rel="noreferrer" target="_blank">http://lists.aprs.net.au/<wbr>mailman/listinfo/ozaprs</a><br>
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>><br>
>><br>
>><br>
>> <<a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" rel="noreferrer" target="_blank">http://www.avg.com/email-<wbr>signature?utm_medium=email&<wbr>utm_source=link&utm_campaign=<wbr>sig-email&utm_content=<wbr>emailclient</a>><br>
>> Virus-free. <a href="http://www.avg.com" rel="noreferrer" target="_blank">www.avg.com</a><br>
>> <<a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" rel="noreferrer" target="_blank">http://www.avg.com/email-<wbr>signature?utm_medium=email&<wbr>utm_source=link&utm_campaign=<wbr>sig-email&utm_content=<wbr>emailclient</a>><br>
>><br>
>><br>
>> <#DAB4FAD8-2DD7-40BB-A1B8-<wbr>4E2AA1F9FDF2><br>
<div class="HOEnZb"><div class="h5">>><br>
>><br>
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>> <a href="mailto:OZAPRS@aprs.net.au">OZAPRS@aprs.net.au</a><br>
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><br>
><br>
><br>
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</div></div></blockquote></div><br></div>