ai6yr, to hamradio

My #hambrella receives fine on 20m! HA! #hamradio #project #hf #antenna

video/mp4

ai6yr, to hamradio

Receiving the International Space Station #ISS on my new #hamradio #umbrella #antenna #hambrella.

makemagazine, to random
@makemagazine@mastodon.social avatar

2023 sees the @oshwassociation return to ! Two days of , , and begin on Friday, April 28th, and conclude with an on Saturday. Highlights include a keynote by @drcaberry, queen @sjpiper145 sharing the secrets to her incredible , @joeycastillo’s Build-A-Book , and @anu1905 and Christin Lundgren’s design session. Find all of the details on our blog:

https://makezine.com/article/maker-news/open-hardware-summit-2023-returns-to-nyc/

itnewsbot, to amateurradio

A Canned Ham Ham Antenna - If you’d have asked us for odds on whether you could successfully turn a canned ha... - https://hackaday.com/2023/11/16/a-canned-ham-ham-antenna/

andthisismrspeacock, to tv
@andthisismrspeacock@mas.to avatar

While those of us in the Northeast US are doing #storm prep and worried about outages, seems like a good time to remind you that you should get a #TV #Antenna.

You can get a really good one for around $150 (plus the cost of a handyman to stick it on your roof if, like me, you have a thing with heights):

https://www.channelmaster.com/collections/outdoor-tv-antennas

You can search your address here to find out where to point it:

https://tvfool.com/index.php?option=com_wrapper&Itemid=29

#Snow #Snowstorm #FreeTV

Dhmspector, to hamradio
@Dhmspector@mastodon.social avatar

So, I was looking for a specific #HamRadio #antenna accessory on Amazon... and this showed up. OMFG^2. Is this a great country OR WHAT?!? 🫡 🇺🇸 (Spoiler: clearly in the “or what” category on this one…). JFC.

https://www.amazon.com/American-Antenna-Exterior-Decoration-Accessories/dp/B0BG79RTTN/ref=sr_1_8?crid=1IOS3FW4SWC1R&keywords=alpha+delta+antenna&qid=1688252470&sprefix=alphadelta+an%2Caps%2C226&sr=8-8

blinken, to Electronics
@blinken@hachyderm.io avatar

I ordered the same #PCB patch #antenna 4 different ways from #JLCPCB to see how well their process tracks their published impedance parameters:

  • FR-4 standard, without soldermask
  • FR-4 TG155/high-temp, without soldermask
  • standard with blue soldermask, green soldermask over the antenna element

#electronics

1/

PCB patch antennas laid out in a grid, with test results written on each antenna in marker.
PCB patch antennas laid out in a grid, with test results written on each antenna in marker.

BelfastRoadster, to tv
@BelfastRoadster@birds.town avatar
ai6yr, (edited ) to hamradio
@ai6yr@m.ai6yr.org avatar

New . built from an ! Receiving (appropriately) the National Weather Service WX Radio. Best SWR are the frequencies, strangely enough!
https://youtube.com/shorts/JnOuYFWag18?feature=share

alper, to amateurradio

Hey lovely folk of , I am planing to make a field portable / for maybe up to 20 meter. I am considering several design choices and came by with the idea of vertical moxons hung from fishing poles. I wonder how this would compare to horizontal and higher hung . Interwebs gave me no answer. I aim to make it simple and compact and vertical idea is good for that goal but I want this to be my efficient antenna so... Any ideas?

pixel, to television
@pixel@social.pixels.pizza avatar

Which broadcast channels can you receive for free? It's time you cut the cord!

#Antenna #OTATV #Television #TV
https://www.antennaweb.org

Thoogah, to pixelart
@Thoogah@mastodon.world avatar
NasosAlaiskas, to fediverse

If you want your own , you need to use in . It's so cool and by far the best way to get informed.

is not

va3db, to hamradio
@va3db@mastodon.radio avatar

A resonant antenna isn't necessarily great. Mobile whips are made resonant too.

P.S. resonant dipoles are not 50 ohm at resonance either.

#HamRadio #AmateurRadio #HamR #Antenna

hackbyte, to diy
jos1264, to Software
@jos1264@social.skynetcloud.site avatar
ai6yr, to hamradio

Experimental Wet Noodle Antenna! (from @w6ah ) #antenna #hamradio #wetnoodle https://youtu.be/9EmDv-mmnOw

ai6yr, to random
@ai6yr@m.ai6yr.org avatar

Today's : attempt to build a resistant, resonant umbrella for .

ai6yr, to hamradio

I have seen @w6ah make a contact on a wet noodle antenna (yes, really), and now I have seen everything. #hamradio

ai6yr,
@ai6yr@m.ai6yr.org avatar
redegelde, to RedditMigration

wondering, first all #redditmigration welcom her. But wich #instance
#mastodon, #lemmy Pro and Cons.
Peronaly i realy like #calckey https://calckey.social/ more options like #antenna and #groups What is your favorite #instance

zapytaj, to random Polish
itnewsbot, to AppleVisionPro
N4JAW, to amateurradio
@N4JAW@mastodon.radio avatar

Active sun, changing bands conditions. Taking along #youkits #hb1b & #linkeddipole #antenna for more #pota #parksontheair #morsecode activation options. #qrp #qrpradio #amateurradio #hamradio @POTAspots

sjvn, to tv
@sjvn@mastodon.social avatar

The best indoor TV #antenna you can buy: Expert tested https://www.zdnet.com/home-and-office/home-entertainment/best-indoor-tv-antenna/ by @sjvn

There's still a lot of good #TV available for free over the air, especially if you like older broadcast shows. Here's what you need to watch these channels

va3db, to hamradio
@va3db@mastodon.radio avatar

What saddens me is so many hams think a dipole is best because it presents a "perfect match" of 50ohms. Wrong. A dipole is roughly 72 ohms if you are lucky and wildly different depending on height and structures nearby.
Yagi antennas are even worse depending on the design and often need an antenna tuner hidden at the antenna. Get the lowest loss feedline you can use and don't feel guilty about the tuner in the shack.

#HamRadio #AmateurRadio #Antenna

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