[OZAPRS] How to make a raspberry pi satgate for the ISS

Mark Jessop lenniethelemming at gmail.com
Sun Nov 19 12:12:14 AEDT 2017


OK, a few points:

- You can't run what you have linked as a script, it has numerous syntax
errors and will break. It's a guide.

- Why are you compiling the rtl_sdr utils from source (and not even the
actual mainline repository, which is at [1]), only to over-write it with
the version in the raspbian repository later on in the 'script'? If the aim
of compiling from source is to obtain the latest bias-tee additions, then
neither of these will work. If you're going to compile from source, compile
from the mainline repository please. The rtl-sdr package in Raspbian
Stretch is out of date, and won't be much help either.

- If you follow the rtl-sdr compilation instructions at [2], it uses a
build flag which makes all the module blacklisting steps further down the
guide irrelevant.

- You are missing dependencies for direwolf (mainly libasound2-dev). How
about just linking to the 'official' direwolf install guide at [3], which
covers installation of direwolf on a Raspberry Pi pretty thoroughly.

- The 'make install-rpi' line for direwolf bombs out on a headless Raspbian
install, as the ~/Desktop directory does not exist. If you mkdir ~/Desktop
and then run 'make install-rpi' it works.

- I don't know what you're trying to achieve with all the copy/move lines.
Just edit ~/sdr.conf directly (as the 'pi' user, not as root!!!!!).

- At the end, your script goes and runs direwolf, without information about
how to start it up automatically (which would be useful for an igate!).
Once again, the official documentation [3] (page 28) has information on how
to set this up, as does [2].

Realistically the existing direwolf APRS+SDR guide [2] contains all the
instructions needed to set up a SDR iGate. The only difference is the
receive frequency. Why not just link to that instead?

73
Mark VK5QI

[1] git://git.osmocom.org/rtl-sdr.git
[2]
https://github.com/wb2osz/direwolf/blob/master/doc/Raspberry-Pi-SDR-IGate.pdf
[3] https://github.com/wb2osz/direwolf/blob/master/doc/Raspberry-Pi-APRS.pdf


On Sun, Nov 19, 2017 at 10:35 AM, <vk4tec at tech-software.net> wrote:

> Hello
>
>
>
> I have made a script to install and make a raspberry pi satgate for the
> space station.
>
>
>
> Raspberry pi, rtl dongle and antenna are required
>
>
>
> http://tech-software.net/satgate/satgate.htm
>
>
>
> Andrew VK4TEC
>
> _______________________________________________
> OZAPRS mailing list
> OZAPRS at aprs.net.au
> http://lists.aprs.net.au/mailman/listinfo/ozaprs
>
>
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