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Author Topic: 30m radio beacon with solar power  (Read 4875 times)

Outpost

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30m radio beacon with solar power
« on: June 08, 2026, 1721 UTC »
I have started trying to get a beacon up and running using a 10W ebay tx originally built for 13.56MHz but converted to 10.140KHz. The transmitter is powered down to 2,25W due to power constraints. It will be controlled using a Arduino Micro that checks voltage, temperature and number of cycles. TX will be done by CW at 15 speed. Intervall will probably be variable depending on battery voltage, i only have a small 10W solar panel.

The Arduino Micro has a sleep mode i will try to get the idle current down, and the TX has 14mA idle current, and 600mA at transmitt. The box is designed to be strapped to a wooden post and left there without taking in water. The radio beacon will be tested in southern scandinavia.

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Teotwaki

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Re: 30m radio beacon with solar power
« Reply #1 on: June 21, 2026, 2133 UTC »
Can you please repost the picture?
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Jim
NRD-525, Elecraft KX3 and Elecraft PX3 Spectrum Display
76' end fed long wire & 66' off-center fed dipole for 10/20/40 meters
Orange County, SoCal, The better half
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