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<p>You did not specify if you are looking at a mountain top with
access and power, or solar for power budget.</p>
<p>For "more modern" I like Bob would suggest the TT4 but also add:</p>
<p>1. Tracker4 (or Tracker3), I have a bunch in LOW POWER battery
mountain tops.</p>
<p><a class="moz-txt-link-freetext" href="https://www.argentdata.com/catalog/product_info.php?products_id=200">https://www.argentdata.com/catalog/product_info.php?products_id=200</a></p>
<p>2. For remote sites that have Internet (for use as a Digi AND
Igate, AND low power) WX3in1 + 2.0</p>
<p><a class="moz-txt-link-freetext" href="https://microsat.com.pl/product_info.php?products_id=100&ceid=6ecb492c34664ccd2c3dba08c23f3433">https://microsat.com.pl/product_info.php?products_id=100&ceid=6ecb492c34664ccd2c3dba08c23f3433</a></p>
<p>All three are MUCH lower power consumption, solid state, not a
full computer. I have hundred's of Pi's for many uses, but I would
not put one on a mountain top with no access for months at a time!</p>
<p>Mark</p>
<p>KC5EVE<br>
</p>
<div class="moz-cite-prefix">On 2/8/2021 9:34 PM, Robert Bruninga
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALdCfNKZOPt6nMfGQLPH2tnOECMV_wRb5UNgvTQGdu-L78MSQg@mail.gmail.com">
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<div dir="ltr">But how does this all compare to an $85
Tinytrak 4 that is highly reliable. We usse them in space
as the digipeater 24/7/365 used rund the world for our
satellites and PSAT is now going on 6 years without failure,
or having to have a visit (ha ha).
<div><br>
</div>
<div><a href="http://byonics.com/tinytrak4"
moz-do-not-send="true">Byonics - TinyTrak4</a><br>
</div>
<div><br>
</div>
<div>Or fully ibuiilt and ntegrated with a 10W radio as the
MTT4B</div>
<div><br>
</div>
<div>Bob</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, Feb 8, 2021 at 5:29
PM Curt Mills <<a href="mailto:curt.we7u@gmail.com"
moz-do-not-send="true">curt.we7u@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">This doesn't directly
answer the questions but should apply:<br>
<br>
A buddy of mine has been putting Rpi-4 systems onto
mountaintops for<br>
digipeaters, running Raspian Linux and SVXlink. Before you
guys wince<br>
and think "I wouldn't use an Rpi for that, they're not
reliable<br>
enough!"... I had the same thoughts initially.<br>
<br>
The keys are:<br>
<br>
- Buy very good and fast SDcards which are much larger than
what you<br>
need (spreads the writes across the card). Like 32 or 64 GB
cards that<br>
are name brand and fast.<br>
<br>
- Use an Rpi UPS board that can control the reset pin.<br>
<br>
- Set up scripts that take down the Rpi nicely when the UPS
runs out.<br>
<br>
- My buddy designed an Rpi board which controls two radios
(with a<br>
soundcard on there of course and PTT circuitry). He
orders/builds more<br>
as he needs them, he doesn't market or sell them.<br>
<br>
He started deploying with earlier Rpi's and in fact one
mountaintop<br>
site is still running an earlier Rpi, like maybe a 2? That
one will<br>
get replaced with an Rpi4 when things warm up again here and
he can<br>
get to the mountaintop.<br>
<br>
Some of these sites have RF links to other repeaters, a
bunch have<br>
internet links, some of those via HamWAN (another subject
entirely).<br>
The system works great, and he can adjust the audio in/out
of each<br>
radio remotely.<br>
<br>
Anyway, that's one example of a H/W setup that could easily
run<br>
Direwolf instead of SVXlink and do what you're asking,
1200-baud-wise.<br>
As far as 9600 baud you might need to do some
experimentation to<br>
figure that out.<br>
<br>
Commercial Rpi radio-control boards (not what my buddy is
using, but<br>
nice boards nevertheless) are available, like the DRAWS
boards from<br>
Northwest Digital.<br>
<br>
He says he's using Sandisk high-endurance 32GB SDcards now,
but may go<br>
to USB 3 SSD in the future. If he goes to those he may skip
the UPS<br>
board.<br>
<br>
<br>
On Mon, Feb 8, 2021 at 1:25 PM Jim (List) <<a
href="mailto:jim.list@stuckinthemud.org" target="_blank"
moz-do-not-send="true">jim.list@stuckinthemud.org</a>>
wrote:<br>
><br>
> Hi,<br>
><br>
><br>
><br>
> I’m looking for advice on current offering for a
robust, field-deployable digipeater TNC/modem.<br>
><br>
><br>
><br>
> Over the years my go-to device has been the KPC-3+,
mainly because when I started out with APRS the sound-modem
stuff was rubbish and not easily deployed in the field
without needing to be tweaked / set up each time. The KPC-3+
is bomb-proof, out-performs most other hardware, low power
and just works (save for the known buffer/timing issues, but
they were solved in v9.1). I’ve never had one fail in 25
years (and I’ve had wide-area event systems deployed with a
dozen of them spread around the hills!).<br>
><br>
><br>
><br>
> The world has moved on and sound-modem stuff is now
very good, so looking at what options there are for
something that has multi-functionality - i.e. can be used at
a centre or in a mobile for situation awareness, perhaps
over LAN/Wi-Fi with an appropriate tablet/computer, used as
an iGate, as well as “black boxed” with a radio for the
hilltop where it can be just switched on and left by someone
without any ARPS / computer knowledge.<br>
><br>
><br>
><br>
> Units that would reliably handle 9600 would also be
useful. Again 25 years ago that was a problem, but radios
from the “big three” (and I think some others) have the
appropriate connections.<br>
><br>
><br>
><br>
> So, any recommendations / thoughts?<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
> Jim<br>
><br>
><br>
><br>
><br>
><br>
> ________________________________<br>
><br>
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antivirus software.<br>
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><br>
><br>
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<br>
<br>
<br>
--<br>
Curt, WE7U <a href="http://xastir.org"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://xastir.org</a>
<a href="http://www.sarguydigital.com"
rel="noreferrer" target="_blank" moz-do-not-send="true">http://www.sarguydigital.com</a><br>
<br>
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