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/hamradio/ - Electronics

For the discussion of electronics, tinkering, radio, amateur radio, and related electromagnetic phenomena and communications.

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File: 1419382689795.jpg (2.53 MB, 4160x2340, 16:9, 20141108_221000.jpg)

 No.154

Anyone here do any homebrew?

-Mod edit- 2015/11/08

This thread is dedicated to homebrew.

Post last edited at

 No.155

Yes.

 No.157

>>155
What do you do?

 No.263

>>154

I made myself a 2m tape measure yagi

I got halfway through a 440 tape measure yagi, but decided not to make it.

I've done a little


 No.265

I do homebrew!


 No.266

File: 1429666137473-0.jpg (15.59 KB, 354x370, 177:185, QFH.jpg)

File: 1429666137473-1.jpg (157.37 KB, 1280x960, 4:3, P07-22-14_09.13.jpg)

not sure to which you are referring

>tfw I also am growing hops this year

I've made a couple, the latest one is a QFH for 137Mhz NOAA weather satellites.

another I still have is a 900Mhz yagi that I used back in the day along with my 3W bag phone to connect to the nearest (at the time) cell tower which was 14 miles away


 No.384

File: 1434556947934.png (2.1 MB, 963x2046, 321:682, It just werks.png)

I tried to make this indoor vertical antenna.

http://www.comportco.com/~w5alt/antennas/index.php?pg=3

It worked Mehseriable. 2:1 SWR for whatever it was tuned for.

I threw all the "Radials" over the edge of the roof, making it look like a dipole.

But then I could tune my antenna by touching the radio!

So I built and installed an Ugly Balun:

http://www.hamuniverse.com/balun.html

And then it tuned up really nice.


 No.409

>>266

Whats the impedance of the qfh?


 No.419

File: 1435306250887-0.gif (47.1 KB, 320x240, 4:3, art-cat.gif)

File: 1435306250887-1.jpg (98.61 KB, 500x355, 100:71, 1802424443_72aa100b5d.jpg)

File: 1435306250888-2.jpg (106.39 KB, 1024x679, 1024:679, cat-antenna.jpg)

File: 1435306250888-3.jpg (59.15 KB, 634x439, 634:439, article-2321693-19B044FF00….jpg)

>>154

>unrelated but

ive noticed how hams and cats go hand in hand

>operator pictured is W6OBB from coast to coast AM

Radio Never Fails 73


 No.469

>>419

Art Bell has his own show now. . .

not coast 2 coast. .


 No.470

>>409

that one is made with RG213 and the impedance is 50Ω


 No.473

File: 1443020772377.jpg (1.26 MB, 1920x1080, 16:9, pure_garbage.jpg)

>tfw limited to long-wire indoors

UHF loop from an ancient pair of rabbit-years and really helps with citizen bands in that territory.

>>469

Midnight in the Desert is still being awesome.


 No.528

well, i nigger-rigged a SWL antenna by stripping the copper out of old electronics cords once


 No.529

Yes, my homebrew is based on the thousands of years of conflict for the holy lands in the Middle East. It encompasses all the cultures and their respective mythologies of the peoples that had a hand in the conflict.




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