IRRC, and i usually do recall stuff well, Francis recommended 18 feet first for their pretumed antennas. I have no idea why Firestick did that, too, and Wilson had a tunable system, note the past tense 'had', that also utilized a half wave length of coax for a CB, again IIRC.
Radio basics
Discussion in 'CB Radio Forum' started by rabbiporkchop, May 21, 2016.
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18 feet of cable Isn't a half wave at 11 meters @ 2/3 the speed of light.
different cables have different velocities -
https://en.m.wikipedia.org/wiki/Velocity_factor
18 feet is about 1/2 free space wavelength @ 11 meters.
Rg58 @ .66 the speed of light would be 11.95 feet for 1/2 electrical wavelengthLast edited: May 24, 2016
Reason for edit: exampleDirtymartini15x, darthanubis and davew48 Thank this. -
Tucker is having a laugh. I got that from his first post.
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http://www.yann.com/en/diy-turn-your-gnulinux-computer-into-a-free-oscilloscope-29/09/2010.html
I'm going to build my own using my laptop. -
I bought a Tektronix SC504 off eBay a couple days ago. It should be here tomorrow... at home anyway. I'm up in New York and home is Alabama.rabbiporkchop and darthanubis Thank this.
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Ok, well crap, I guess I didn't buy an SC504. It's an SC502... only 15mhz.
@rabbiporkchop wasn't that link you sent me for a 504? I could have swore that's what it said when I first read it. But I just went back and looked at the order confirmation... nope... says 502.
Ah well, I guess I'll play with it for a while to maybe learn what I really need. Probably overpaid for the dang thing too, lol. -
The Mainframe had a 5:02 which pulls right out in the 504 can plug right in
lilillill Thanks this. -
That Mainframe is pretty cool all the components are modular and slide in and out for easy replacement
lilillill Thanks this. -
I'll get back to you with the part number for a killer Spectrum analyzer that slides right into the unit
lilillill Thanks this.
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