New Open Source WSPR Transmitter with GPS for only 39$

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Image icon The WSPR Mini368.59 KB

Hi all.
I just released my latest low power, low cost WSPR transmitter.
This one has a built in GPS with built in antenna and is optimized for low current consumption and weight.
It can be powered from a single LiPo or from USB.
It cost only 39$ and operate on a single band as set with a low pass filter (sold separately).
Any band from 137kHz to 70 MHz
More info here : https://www.zachtek.com/product-page/wspr-tx-mini-transmitter

For a overview and comparison of all my WSPR transmitters go here : https://www.zachtek.com/wspr-tx

73
//Harry - SM7PNV