LC vibe check

Comments

• Geodad@lemm.ee ⁨1⁩ ⁨week⁩ ago

  That was us on the right tail when I was in the Army. Several billion dollar defense budget, and the troops have old, outdated, broken equipment.

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• mmddmm@lemm.ee ⁨1⁩ ⁨week⁩ ago

  On gold connectors… Are you afraid your signal will reflect back into the antenna? Do people really do that?

  But yeah, also you can make sure it resonates on the correct frequency by mechanically adjusting it and looking for the feedback.

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  • Zorsith@lemmy.blahaj.zone ⁨1⁩ ⁨week⁩ ago

    AFAIK gold on connectors is for anticorrosion purposes. Not particularly useful for say, a gaming mouse, but for an outdoor antenna i can see the use case.

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    • neidu3@sh.itjust.works ⁨6⁩ ⁨days⁩ ago

      Gold connectors are a waste of money. Regular N or PL259 are fine, just cover them with some acid free dielectric grease.

      Source: The amount of ships antennae I’ve installed with cable termination is in the hundreds.

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    • einfach_orangensaft@sh.itjust.works ⁨6⁩ ⁨days⁩ ago

      i am wondering, since signals are AC in nature, it should be possible to coat connectors in a super super thin layer of polymer (anti corrosion) and it should still work, it would increase the capacitive resistance tho

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• neidu3@sh.itjust.works ⁨6⁩ ⁨days⁩ ago

  No need for ex0ensive coax. Rg214 is great and reasonably priced. As for the antenna, if you have a balance, trash will do just fine - just make sure it’s the correct amount/length of trash for the frequency you’re working with.

  Source: I used the gutters on my previous house to listen in on maritime HF DSC transmissions from around the world.

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• lvxferre@mander.xyz ⁨6⁩ ⁨days⁩ ago

  That reminds me, that in the 90s it was really common to put steel wool on the TV antenna. At least in my chunk of Latin America.

  Digital TV is killing our culture!! /s

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• 5in1k@lemm.ee ⁨6⁩ ⁨days⁩ ago

  I just recently built an off center dipole from aluminum tubes that were scrapped from projector mounts that I screwed to a 2x4.

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  • allywilson@lemmy.ml ⁨6⁩ ⁨days⁩ ago

    To do what?

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    • 5in1k@lemm.ee ⁨6⁩ ⁨days⁩ ago

      Play with a SDR on my computer.

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