¶ turm.ak.ber.
Captivating Aerial View of Berlin's Rooftops
¶ About the Tower
Welcome to turm.ak.ber!
The tower is a place for various projects, providing interesting research opportunities.
Here's an overview of what we do:
¶ Freifunk
We support and promote Freifunk, a non-commercial initiative to build free and open wireless networks. Our goal is to provide free internet access to the community, fostering digital inclusion and connectivity.
¶ NTP Server
We operate stratum 1 time-servers:
- Meinberg M200 GPS (Global Positioning System)
- Meinberg M300 PZF DCF77 (transmitter Mainflingen, Germany)
10 MHz sine clock signal for SDR sync
available via BNC connector.
Accuracy of NTP servers around 1 µsec
¶ Software-Defined Radio (SDR)
We run various Software-Defined Radio (SDR) systems, allowing us to tune into a wide range of frequencies and analyze radio signals.
SDR enables us to explore and experiment with radio communications.
¶ Ham Radio
We have an active Ham Radio setup, enabling amateur radio enthusiasts to communicate over long distances.
Our station supports various modes of operation, including voice, digital, and Morse code.
Currently we remotely operate a Yaesu FT897d with max. 100W output power.
¶ Satellite Communications
Our tower facilitates Satellite Communications as well, enabling us to receive and establish links with satellites orbiting the Earth.
We are planning on data transmission and satellite tracking too.
¶ Short Wave Radio
We explore the world of Short Wave Radio, which allows long-distance communication by bouncing radio waves off the ionosphere.
This is an essential tool for global communications, emergency services, and international broadcasting.
¶ ADS-B Receivers and data Feeders
We run ADS-B Receivers, which track aircraft movements by receiving signals from airplanes.
This data is crucial for aviation enthusiasts, researchers, and enhancing air traffic awareness.
We use a mix of mode-s beast FPGA based receivers(MLAT capable) and RTL-SDR receivers.
Technical Info:
¶ Cameras for a View Over Berlin
We have strategically placed Cameras on our tower to provide a stunning view over Berlin.
These live feeds offer panoramas and are accessible to the public for real-time viewing soon.
¶ Weather Observations
We are planning to conduct Weather Observations using advanced meteorological equipment.