ZachTek WSPR Transmitter

I am considering purchasing one of these units for WSPR experiments.

It’s an interesting product, with GPS providing timing and location data and working off a 5V USB supply.

I need to decide what band to concentrate on and where to locate before purchasing.

Zachtek WSPR tx

2 Replies to “ZachTek WSPR Transmitter”

    1. Hi Bri,

      The kit requires an LPF, which can be user supplied or ordered from ZachTek who offers LPFs from LF to 4m for $9 each.
      The LPF kit is user-constructed and then added to the board. To keep my options open (and the board multi-frequency), I have external LPFs for various bands which I’m going to use for various projects as I’ve not decided on the final frequency or antenna at the moment due to other projects.

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