โ RNS 1.4.2 released https://pypi.org/project/rns/
๐ฌค rns.recipes
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โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ How to Choose RNode LoRa Parameters โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
Started by Cleeyv ยท 2mo ago ยท 0b91c6bd3f4e6eda
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โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-11
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ Nomad1n0 #11 โ
โ d94777f6b45c650d โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
Quick calculations for Europe regarding this:
Usable spectrum with ideal settings: 869.4 - 869.65
This allows 10% duty cycle with 500mW transmission power. Other bands has lower duty
cycle or transmission power.
Meshtastic:
Default LongFast:
center - 869.525 MHz
bandwidth - 250 KHz (0.250 MHz)
used spectrum - 869.4 to 869.65 (basically all the band that is)
Meshcore:
Default EU/UK(Narrow):
center - 869.618
bandwidth - 62.5 KHz (0.0625 MHz)
used spectrum - 869.586 to 869.649
Unfortunately MT always use 250 KHz bandwidth in all presets(actually it uses 500KHz in
ShortTurbo), so it'll always affect the whole spectrum when it transmits.
Being so that you can't really avoid this, it's best to at least avoid overlapping with
Meshcore or other local LoRa projects.
Also i recommended to use 62.5 KHz band to let other people have their own slot if they
need it(i.e. Emergency Comms which should be as reliable as possible).
โ 1 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-12
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ Nomad1n0 #12 โ
โ d94777f6b45c650d โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
It would be nice to have common settings for Reticulum, however this may not be easily
achieveable as we don't have presets or defaults. Different communities may also have
different needs.
However i say we should generally use the next slot below default Meshcore for Europe,
just for convenience and ease of configuration.
So in this case 869.618 of Meshcore we substract 0.0625 which is a full slot of bandwidth
62.5 KHz we get 869.5555 MHz as center frequency.
Roughly this means for Reticulum:
center - 869.555
bandwidth - 62.5 KHz (0.0625 MHz)
used spectrum - 869.523 to 869.558
This means there are 2 free slots for 62.5 KHz bandwidth, which allows other similar
projects to coexist with us and Meshcore.
Of course, coordinate local first, and only afterwards use global/default configuration
if possible.
It would be nice if at some point we'll link our networks together.
I think i'll use this preset from now on for exactly this reason.
โ 1 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-13
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ joakim #13 โ
โ b918e659eeedac9a โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
433.050โ434.790 MHz is also worth considering, with 10% duty cycle and 10 mW ERP (in my
country at least). While it can be very noisy some places, in other places it can be
pretty quiet. It's a much wider band and the range is roughly the same (I've been told).
โ 0 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-14
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ welo #14 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
Anonymous wrote:
> Anonymous wrote:
> > The issue is, that EU regulations are very strict and the only spectrum that
allows even only 10% duty cycle and 27dbm is exactly where meshtastic and everyone else
sits. The band is only 250mhz wide, so there is not much to choose if you want to stay in
legal boundaries. You can try a narrow setting and split thr band in 2 or 4 parts. But
you will always reveive all of the other traffic around you.
> >
> > https://en.wikipedia.org/wiki/Short-range_device#SRD860
>
>
> For reference here are the frequency 'slots' for Europe:
>
> For 62,5 kHz
> - 869.43125 MHz
> - 869.49375 MHz
> - 869.55625 MHz
> - 869.61875 MHz
>
> For 125 kHz:
> - 869.4625 MHz
> - 869.5875 MHz
>
> For 250 kHz:
> - 869.525
>
> Meshcore in Europe mostly operates on 62,5/869.618. So if someone wanted to avoid them,
you shoudn't use 62,5/869.618, 125/869.5875 and 250/869.525.
If I use a lower bandwidth but also decrease the spreading factor so that the bitrate is
roughly the same, does that give me equivalent range and penetration characteristics as
higher bandwidth and spreading factor. I'm currently using a bandwidth and frequency that
interferes a little with meshcore because I wasn't correctly informed on the bandwidth
setting actually worked. Also is there any differences in the bands or are they roughly
the same (not counting if they are already being used)
โ 0 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-15
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ joakim #15 โ
โ b918e659eeedac9a โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
https://reticulum.miraheze.org/wiki/LoRa_parameters
It's a mashup of text by Cleeyv, Nomad1n0 and Mark. Feel free to improve on it :)
โ 0 โ 0 โค 1
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-16
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ Anonymous #16 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
Nomad1n0 wrote:
> It would be nice to have common settings for Reticulum, however this may not be easily
achieveable as we don't have presets or defaults. Different communities may also
have different needs.
>
> However i say we should generally use the next slot below default Meshcore for Europe,
just for convenience and ease of configuration.
>
> So in this case 869.618 of Meshcore we substract 0.0625 which is a full slot of
bandwidth 62.5 KHz we get 869.5555 MHz as center frequency.
>
> Roughly this means for Reticulum:
> center - 869.555
> bandwidth - 62.5 KHz (0.0625 MHz)
> used spectrum - 869.523 to 869.558
>
> This means there are 2 free slots for 62.5 KHz bandwidth, which allows other similar
projects to coexist with us and Meshcore.
>
> Of course, coordinate local first, and only afterwards use global/default configuration
if possible.
>
> It would be nice if at some point we'll link our networks together.
> I think i'll use this preset from now on for exactly this reason.
I thought maybe its even better to leave out one narrow band as a buffer to avoid as much
as possible from meshcore. And I dont see any reason to prefer the one band over the next
one otherwise.
โ 0 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-17
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ RandomPeer #17 โ
โ 728e66664ab0c72c โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
It's not really advisable due to 125 KHz bandwidth. So two slots of 62.5 equals one slot
of 125. In this case slots 1 and 2 of 62.5 becomes slot 1 of 125. If you use slots 2 and
4 of 62.5, then you actually block both slots of 125(slot 2 of 62.5 blocks slot 1 of 125,
while slot 4 blocks slot 2). If we use adjacent slots then we only block slot 2 of
125KHz, while slot 1 is still free if needed.
โ 0 โ 0 โค 1
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-18
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ Anonymous #18 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 2mo ago
Makes sense I guess. That way I could still use the other 125 band without interfering
with myself or meshcore. Thanks!
โ 0 โ 0 โค 0
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
post-19
โญโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฎ
โ Anonymous #19 โ
โฐโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฏ
โธ 1mo ago
Nomad1n0 wrote:
> It would be nice to have common settings for Reticulum, however this may not be easily
achieveable as we don't have presets or defaults. Different communities may also
have different needs.
>
> However i say we should generally use the next slot below default Meshcore for Europe,
just for convenience and ease of configuration.
>
> So in this case 869.618 of Meshcore we substract 0.0625 which is a full slot of
bandwidth 62.5 KHz we get 869.5555 MHz as center frequency.
>
> Roughly this means for Reticulum:
> center - 869.555
> bandwidth - 62.5 KHz (0.0625 MHz)
> used spectrum - 869.523 to 869.558
>
> This means there are 2 free slots for 62.5 KHz bandwidth, which allows other similar
projects to coexist with us and Meshcore.
>
> Of course, coordinate local first, and only afterwards use global/default configuration
if possible.
>
> It would be nice if at some point we'll link our networks together.
> I think i'll use this preset from now on for exactly this reason.
I really should add that there is a rounding error here. 869.618-62.5 = 869.555 but the
actual center frequency used by meshcore is 869.61875 and that leads to the next
available center frequency of 869.556.
I have it summarized here by a chatbot:
Exact (MHz)
Band width total: 869.400000 โ 869.650000
869.400000 โ 869.462500 (center 869.431250)
869.462500 โ 869.525000 (center 869.493750)
869.525000 โ 869.587500 (center 869.556250)
869.587500 โ 869.650000 (center 869.618750)
Truncated to 3 decimals (MHz)
869.400 โ 869.462 (center 869.431)
869.462 โ 869.525 (center 869.493)
869.525 โ 869.587 (center 869.556)
869.587 โ 869.650 (center 869.618)
If you use 869.555 you WILL be touching the next band.
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post-20
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โ Nomad1n0 #20 โ
โ d94777f6b45c650d โ
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โธ 1mo ago
Yep, very good hint. My math was done plainly on the frequency in MC app, which is set to
869.618 with no additional decimals.
I did not check the code to see if it's actually using 869.618750, i just substracted
from .618.
Good reason not to trust random stranger math on the internet i guess :)
Being so that Reticulum allows us to set at Hz level, we should actually set in our RNode
configurations: frequency = 869556250
This is the actual center of Slot 3 objectively speaking, let the SW handle the rounding
etc.
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โ INFO โ Identify to this node to post. How?
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