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Deeper Sonar: How to Save €170 on a Repeater

/en/electronics/common/ deepermikrotik
25/July/2026
authorArt
Art
Deeper DP4 Sonar
Deeper DP4 Sonar 4032x3024
26-06-22_13-14-43_4184.jpg
Deeper DP4 Sonar
Deeper DP4 Sonar 4032x3024
26-06-22_13-15-01_4185.jpg
Deeper Sonar DP4H13S10
Deeper Sonar DP4H13S10 4032x3024
26-06-22_13-22-07_4186.jpg


We have a Deeper DP4H13S10 sonar, and the goal is to increase its signal range.
The original Deeper Range Extender costs about €195.
How can we solve this using what we already have? And even make it better?
It’s very simple.

Deeper Sonar: How...

Compromise of 32 Red Hat packages in the NPM directory and 1,577 packages in the AUR repository

21/June/2026 redhatarch

Who are we? Red Hat! 1600x1200 redhat_en_exw.png
Who are we? Red Hat!

A good addition to the collection.
The news needs to be given time to settle, and then the details can be savored.

  • Red Hat, RED HAT, CARL!
  • GitHub Actions, as usual.
  • NPM, we’re already used to it.
  • Arch User Repository, it’s already more interesting.
Compromise of 32...

Daily routine

14/June/2026 Meteor75MikroTik

MikroTik Switch CRS354
MikroTik Switch CRS354 5712x4284
mikrotik_network_stand.jpg
Pressure Sensor
Pressure Sensor 4032x3024
26-06-14_13-45-16.jpg
BetaFPV Meteor75
BetaFPV Meteor75 4032x3024
meteor75_6.jpg
Pressure Sensor | Oscilloscope readings - empty state 1920x1021 empty.png
Pressure Sensor | Oscilloscope readings - empty state


Daily routine

WiFi socket, declared as 20 Amps

9/June/2026 wall-socket

WiFi Wall socket
WiFi Wall socket 4032x3024
ima_145e6a7.jpg
LN822HKI
LN822HKI 4032x3024
ima_9a69bb5.jpg
Wall socket PCB
Wall socket PCB 4032x3024
ima_4b1e157.jpg


What could be wrong here?

WiFi socket, declared...

Critical remote vulnerability in Nginx CVE-2026-9256

23/May/2026 nginxdebianCVE

Let’s rebuild Nginx with CVE-2026-9256 patch according to the Debian-way.

Debian Nginx CVE-2026-9256 1600x900 CVE-2026-9256.png
Debian Nginx CVE-2026-9256

A critical vulnerability in nginx allows remote code execution with the privileges of the nginx worker process by sending a specially crafted HTTP request.
But that’s not the point.
The problem is that Debian maintainers are in no hurry to release a new patch package.

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apt --no-install-recommends \
    --no-install-suggests install \
    build-essential \
    fakeroot \
    devscripts

nano /etc/apt/sources.list

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# trixie sources
deb-src https://deb.debian.org/debian/ trixie main contrib non-free non-free-firmware
deb-src http://security.debian.org/debian-security/ trixie-security main contrib non-free non-free-firmware
deb-src https://deb.debian.org/debian/ trixie-updates main contrib non-free non-free-firmware
Critical remote vulnerability...
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