Homer Simpson Moments

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gnuuser
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Homer Simpson Moments

Postby gnuuser » 08 Feb 2020, 03:57

:Doh:
today testing out some old cb antennas. try as i might I couldn't get them to match :wall:
after about three hours I finally got up and got a couple beers, While downing the second one it hit me :o
Remembering my radio classes 40 years ago I remembered the teacher saying" Any transmitting antenna requires a ground
plane equal or slightly larger than the transmitting element to match impedance:
:Doh:
finished my beer and as an experiment used an old 35 inch car radio antenna with a nylon disk as insulator. Then made (5) 7 inch radial elements wired together and bent downward at a 45 degree angle,
mounted it on a fence post away from the house and connected the coax. :pray:

Lo and Behold swr tested the junktenna and you guessed it (1.2: to 1 swr) damn near a perfect match :jackpot

must be the beer jogged my brain cells awake.
I sure am not going to forget that.

:lolup

kind of makes me want to try ham radios
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Re: Homer Simpson Moments

Postby gnuuser » 08 Feb 2020, 18:28

Image
Quick image of the junktenna
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Re: Homer Simpson Moments

Postby R_Head » 10 Feb 2020, 04:18

Eureka moment :lol:

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Re: Homer Simpson Moments

Postby gnuuser » 12 Feb 2020, 02:53

got the new firestick firefly antenna (white) just waiting for the mount I ordered, which should be here in a couple days.
anyway a trucker friend asked why Im setting up the cb in my vehicle, and I responded "I'm fire police and sometimes we have to close down roads due to accidents and Its nice to give you drivers a little advanced notice so you can choose another route"

he shook my hand and said god bless you for thinking of us!
sure is a lot easier than trying to turn a double trailer around on a narrow road!
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Re: Homer Simpson Moments

Postby viking60 » 02 Apr 2020, 14:07

:dancer :cheers love it
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Re: Homer Simpson Moments

Postby R_Head » 05 Apr 2020, 00:27

Got me a CB Kit for my daughter's Jeep JK Rubicon. Got the Firestick installed and the cable routed. Also came with a Cobra 75 handheld CB Transmiter. Nice how tech allows you to shrink devices.

Got the kit from here.
https://www.rightchannelradios.com/prod ... ef=yotpo_8

And this is what the Kit consist of...

Cobra 75 WX ST CB radio

4' Firestik FS CB antenna

Teraflex JK Tire CB Mount with antenna stud18' RG8X coax cable

Compact external speaker

Standard SWR meter and jumper cable

Detailed, step-by-step installation guide
Last edited by R_Head on 12 Apr 2020, 22:13, edited 1 time in total.

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Re: Homer Simpson Moments

Postby dedanna1029 » 10 Apr 2020, 15:21

Very nice, both of you!
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