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Summary of Contents for Satran MK3
- Page 1 SATRAN MK3 USER MANUAL SAtellite TRacking Antenna Open source 3D-printable azimuth/elevation antenna rotator www.satran.io Within Europe only legal for use by authorities or licensed radio amateurs Always read and understand this manual before use 2022-08-23 page 1...
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Page 2: Safety Precautions And Instructions
Safety Precautions and Instructions Before use, read all parts of this manual to prevent injury or malfunction 1) Inspect the product after unboxing and do not continue with the installation in case there are parts missing or the product has any visible damage. 2) The control unit needs a stable DC 12V 1A power supply to function properly, you are advised to only use the supplied power adapter or it may result in damage to the unit. -
Page 3: Getting Started
When power is applied, the rotator will initiate by moving both axis and turning azimuth to 0 degrees north. 1) Mount the Satran on top of a pipe with control cables and any coaxial cables running inside down through the pipe, without fastening it completely. -
Page 4: Reset To Factory Defaults
Satran MK2 is intended for all cables running through the center of it down the mounting pipe. On the side of the rotator there is a rubber gasket for the antennas coaxial cable. If the pipe your Satran is mounted to is taller than the control cable, you need to drill a hole in the pipe approx 1 meter below the top where the cable can exit for connection with the control box. -
Page 5: Calibration Of Sensors
Calibration of sensors The Satran MK2 uses two linear 1K potentiometers as sensors to read its current position. The max/min values of these need to be calibrated in order to give a high accuracy. The rotator accepts potentiometer range of 25 - 999. A reading lower than approximately 25 probably indicates that the control board has lost connection with the sensor;... - Page 6 When a satellite has been chosen, you can go to the first tab that should show you its relative position and the time for its next overhead pass. If you want the Satran to track the satellite when it passes you, you need to click the toggle button on the prediction tab to activate the rotator.
- Page 7 Control with Gpredict (hamlib/rotctld) The Satran has a simulated hamlib rotctl daemon or ”rotctld” that acts as a TCP server and can take standard rotctl commands from compatible software, like the popular Gpredict program. When power is connected and the rotator has initialized without errors the Satran is always listening for rotctl commands, which makes setup very easy.
- Page 8 Satran MK2 has not yet been tested with other hamlib/rotctl-compatible software like satnogs. If you get it to work with such other software, please be kind to the community and share your findings in the forum at www.satran.io...
- Page 9 Specifications MK3 standard Control unit processor: ESP8266 v2 NodeMCU Recommended PSU: DC12V 1A Control unit power cable: JST-XH 2pin to 5x2.5mm DC-plug Voltage requirements: DC 11-14 volt Recommended fuse: 5x20mm 630mA Motor rated voltage: DC12V 60RPM Wifi network compatibility: 802.11 b/g/n (max 20 character pass/ssid)
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