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--- blog:2021-01-30:atu-100_project [2021/03/05 12:18] – va7ilo
+++ blog:2021-01-30:atu-100_project [2021/03/10 20:10] (current) – va7ilo
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 ====== ATU-100 Project ======
+{{:blog:2021-01-30:download.jpg?400|}}
 Here is a link to a really interesting open source automatic antenna tuner kit that can be built inexpensively, I ordered a kit the other day about $60 CDN so am anxiously awaiting for it to arrive. It also has an OLED display which shows by default the power, SWR and selected inductance and capacitance, the kits range from fully assembled to partially assembled, the one I ordered (the most common kit) has the surface mount components installed and the PIC processor already programmed, so just need to solder in the relays a couple of capacitors and the various inductors. These kits are widely available on sellers like Amazon and e-bay by searching the keyword ATU-100.
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 [[https://github.com/Dfinitski/N7DDC-ATU-100-mini-and-extended-boards]]
-This is the one I ordered:
+Here is the link to the instruction manual and description.
+[[https://github.com/Dfinitski/N7DDC-ATU-100-mini-and-extended-boards/blob/master/ATU_100_EXT_board/ATU-100_Extended_Board_User_Manual_eng.pdf]]
+This is the first one I ordered:
 [[https://www.amazon.ca/gp/product/B08TWTYTNR/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1]]
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 [[https://www.youtube.com/watch?v=dPys_-_wPcQ]]
-Here is an update on where I am with this, I ended up ordering another kit off Aliexpress Canada which was much cheaper and shipping was also faster too so much better deal there:
+Here is an update on where I am with this, I ended up ordering another kit off Aliexpress Canada which was much cheaper and shipping was also faster too so much better deal there ( I wanted another one for up to 100 watt too as well as one for QRP):
 [[https://www.aliexpress.com/item/4001120351921.html?spm=a2g0s.9042311.0.0.10b44c4dCwsvp5]]
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 Another note on these ferrites is to make sure you strip or sand off the insulation far enough up so that it is bare on the top side of the board, these are double sided PCBs so the solder needs to flow to the other side to solder to the top pads too.
+{{:blog:2021-01-30:20210310_124623.jpg?400|}}
+Here is one of the ATUs so far (the transmatch still needs soldering in this picture).