kopia lustrzana https://github.com/DG1JAN/xOTA-Antenna
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README.md
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README.md
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# xOTA-Antenna
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**A pcb for end fed antennas (EFHW, random wire) for SOTA, POTA,... xOTA** <br /><br />
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maximum power rating:
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maximum power rating:
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* FT-140-43: 100W SSB/CW or 50W FT8 (etc)
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* FT-114-43: 25W SSB/CW or 10W FT8 (etc)
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* FT-82-43: 10W SSB/CM or 5W FT8 (etc)
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<br />
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(*the two bottom pictures are from the prev. proto desig (labeled as "EFHW" instead of "xOTA-Antenna").
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(*the two bottom pictures are from the prev. proto desig (labeled as "EFHW" instead of "xOTA-Antenna") and Version 1.0.
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## BOM (1:49 UnUn for EFHW*)
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*The PCB can also be used with other UnUn windings (like 1:9, 1:4) to build non resonant ("random wire") endfed antennas.
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*The PCB can also be used with other UnUn windings (like 1:9) to build non resonant ("random wire") endfed antennas.
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(links to Distributors are only examples)
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1x PCB: custom order from PCB manufacturer e.g. from https://www.jlcpcb.com or https://aisler.net/
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@ -19,7 +21,7 @@ maximum power rating:
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*here you can find the gerber files as ZIP-Archive: https://github.com/DG1JAN/xOTA-Antenna/blob/main/xota-gerber.zip <br />
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Manuel (Dl2MAN) has made a good video to explain the ordering process for JLCPCB and Aisler: https://www.youtube.com/watch?v=1b3oLp7s9gk&t=202s*
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1x Torroid - e.g. Fair-Rite 5943001001 (alt. Amidon FT114-43, or FT82-43 [with reduced power rating])
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1x Torroid - e.g. FT140-43, Fair-Rite 5943001001 (AKA Amidon FT114-43) or FT82-43 [with reduced power rating])
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https://www.digikey.de/de/products/detail/fair-rite-products-corp/5943001001/8599631?s=N4IgTCBcDaIKwE4AsBmADGgjBzg4AgAQgC6AvkA
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1x BNC Socket - Molex 731385033 (Hint: Using alternative Parts might be possible, take care about clearance between PCB and BNC-Plug (most BNC-Sockets are lower, so you cant connect a plug to the socket when soldert on PCB)
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@ -28,10 +30,10 @@ https://www.digikey.de/de/products/detail/molex/0731385033/1465137?s=N4IgTCBcDaK
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1x 100pF 1kV Ceramic Capaciator - e.g. Kemet C333C101KDG5TA
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https://www.digikey.de/de/products/detail/kemet/C333C101KDG5TA/6161481?s=N4IgTCBcDaIMwE4EFoCMAWA7OlA5AIoHAEABCALoC%2BQA
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1 meter Trafo wire - e.g. BLOCK CUL 100/0,63
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1 meter Trafo wire - e.g. BLOCK CUL 100/0,63mm (for 100W Version better 1mm)
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https://www.reichelt.de/100g-kupferlackdraht-auf-spule-0-63mm-cul-100-0-63-p57183.html?&nbc=1
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2x 4mm Banana Socket - e.g. GTIWUNG 4mm Plug
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2x 4mm Banana Socket - e.g. GTIWUNG 4mm Plug (In alternativ/addition to the Banana Sockets, you can also use 3mm Screws with Wingnuts for Antenna (and Ground radial - if so)
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https://www.amazon.de/GTIWUNG-Vergoldete-Bananenstecker-Elektronische-Kugelstecker/dp/B07VYSN74H?pd_rd_w=O7WLe&content-id=amzn1.sym.995b3ade-87fd-4685-9950-c7995e7b483c&pf_rd_p=995b3ade-87fd-4685-9950-c7995e7b483c&pf_rd_r=1C95B6TWM7XGFV1X0J87&pd_rd_wg=sJWhQ&pd_rd_r=1c436703-eaf7-4adf-8249-24d57eab1f05&pd_rd_i=B07VYSN74H&psc=1&ref_=pd_bap_d_rp_1_i
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8 cm Shrink tube 40mm wide - e.g. ISOLATECH Shrink Tube 40mm 3:1 with glue
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@ -42,4 +44,3 @@ https://www.amazon.de/gp/product/B06WVCGD7M/ref=ppx_yo_dt_b_asin_title_o09_s01?i
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Take care about clearance between PCB and BNC-Plug (most BNC-Sockets are lower, so you cant connect a plug to the socket when soldert on PCB), use Molex "731385033" or similar.
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