From ff9d3dea86f6795633c93d7d212082dadfbd11eb Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Thu, 27 Apr 2023 13:16:51 -0600 Subject: [PATCH] more answers --- FAQs/ublox_limits.mdwn | 8 ++++++++ FAQs/viruswarning.mdwn | 18 ++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 FAQs/ublox_limits.mdwn create mode 100644 FAQs/viruswarning.mdwn diff --git a/FAQs/ublox_limits.mdwn b/FAQs/ublox_limits.mdwn new file mode 100644 index 0000000..be54f8d --- /dev/null +++ b/FAQs/ublox_limits.mdwn @@ -0,0 +1,8 @@ +# What altitude limits exist for the GPS receivers on Altus Metrum products? + +The U-blox parts we use perform well in airborne mode, and are the gold +standard for hobby rockets. However, series 8 and below reportedly stop +reporting above 50km altitude, and series 10 stops reporting above +80km. We do not have flight data from anyone who's gone that high to confirm +or deny this, though others report confirming it with GNSS simulation systems. + diff --git a/FAQs/viruswarning.mdwn b/FAQs/viruswarning.mdwn new file mode 100644 index 0000000..b8364a9 --- /dev/null +++ b/FAQs/viruswarning.mdwn @@ -0,0 +1,18 @@ +# What do I do about a virus warning when installing AltOS? + +As long as you're downloading from altusmetrum.org, any virus or trojan +warnings you get, particularly on windows, are false positives. + +We build everything from source using only open source tools on a well +maintained Linux system, sign all our installers with a Microsoft-approved +cryptographic key, and distribute the bits from a well maintained Linux +server we own .. so there's really no plausible chance of infection. We're +highly confident that there's nothing vile in our code, and there's no +way for us to know what about our builds might cause them to appear to +still look too much like a virus in the minds of some anti-virus tools. + +If your anti-virus tool is complaining, the best thing to do is report +this false positive to your vendor. If they hear about it often enough, +maybe they'll fix it for you. In the meantime, the only answer we know of +is to turn off your anti-virus tools long enough to download and install +our software. -- 2.47.2