37-Degree Delta Loop Antenna under Unfavorable Constraints (EP138)
9K views · Oct 15, 2024 · Science & Technology
Comments · 35
@LU8HRW · 1 year ago
Excellent video. Very professional and extremely useful for those of us who are fans of the delta loop antenna. Thank you and congratulate you for uploading it. 73 by LU8HRW
2
@PrimulaCarniolica · 1 year ago
TNX for very interesting and practical explanation!!!👍 73,S51X
3
@احمدالحمدو-ف7ر · 2 months ago
Fre god and vere god
1
@RogierYou · 7 months ago
Feed it with a 450ohm ladder line into a balanced tuner (transmatch).
1
@johnwest7993 · 1 year ago
Thank you. Another excellent video, and I look forward to the next one.<br>While I understand that the impedance is matched I'm curious about any sort of balanced/unbalanced current effects on the outside of the coax using these distorted loops.
3
@y_x2 · 7 months ago
You need a balun in all case.
1
@harryszwergstatt2879 · 1 year ago
Sehr interessantes Video, aber das Englisch ist leider sehr anstrengend. Aber für den Informationsgehalt gibt's definitiv einen Daumen hoch! 👍
1
@Philip-KA4KOE · 7 months ago
Did you make a loop?
1
@PIasmaZombie · 1 year ago
Kann man eine mehrelementige Deltaloop bauen die im Einspeisepunkt im Fuß (ca.) 50Ohm hat und direkt mit einem 50Ohm Koaxkabel gespeist werden kann ? Ohne 1:4 Balun oder Gammamatch, ohne Antennenkoppler usw. . Wenn die Seiten der Deltaloop gleichlang sind, hat die wenn ich mich richtig erinnere 90Ohm Einspeisewiderstand im Fußpunkt und weitere Elemente (Direktoren und Reflektor) verringern den Einspeisewiderstand, irgendwie müsste dann doch auf 50Ohm zu kommen sein um die Antenne direkt mit einem 50Ohm Koaxkabel oder 75Ohm Koaxkabel zu speisen. <br><br>Das Video find ich sehr praktisch, die längen für eine Spitze Deltaloop die im Einspeisepunkt im Fuß 50Ohm hat sind für die Amateurfunkbänder direkt angegeben.
1
@peepzorz · 1 year ago
Is the delta loop calculator available online? I tried your plans for 915Mhz but ended up with something resonant at 976.4MHz. I used 12AWG (so 2.0525mm d) wire. I noticed the one you built also had a significant extension of thinner wire; perhaps to compensate for a similar issue?
1
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