Original http://www.kongsfjord.no/dl/Amplifiers/Ultralinear%202N5109%20And%202N3053%20Amplifiers.pdf Hi Steve, I built a couple of the push-pull amps in 1996 using the pcb design as in the article yo
I came across a neat way to find buried coax, should work for radials too! Use a portable radio tuned to a station, rotate the radio to get a null, then as you move the radio over the coax (radial)
Hi All, Dallas Lankford has several plans for homebrewing antenna phasers on the site below. Dallas has done his homework, it's well worth a look. Page down to antenna phasers. http://www.kongsfjord.
I don't have info using the Mfj, But here is a good link to several homebrew phasing unit designs. And a whole lot more! http://www.kongsfjord.no/dl/dl.htm Mike ______________________________________
If a shorter Beverage wire length is used because of space restrictions, a near perfect feed and restive termination can appear as a low VSWR, over a reasonable frequency range. However her
On 8/4/2018 9:08 PM, Mikek wrote: Hi JC, I have just recently put in a BOG. But before I installed the BOG, I ran my 240 feet of coaxial feedline out to where I expected to put my BOG transformer.
I have installed a 253ft Bog, I used WD-1A a pair and just twisted the two wires together. Any reason I should separate the pair and just use a single wire? Can the WD-1A be used for a Bi-direction
Sorry I can't see if there is a way to reply specifically to the OP's question on the reflector, so, I just put in the Subject. Ok, I'm learning as I go, but I had a 250ft bog with variable terminat
I want a BOG that will have a proper pattern over 500kHz to 4Mhz. As I understand it, "loaded Beverages show increased directivity because velocity of propagation along the antenna is /*decreased*/
But what did you mean by "proper pattern"? I should have said, the best pattern that adjusting the Inductive loads will provide. Yes, I understand the pattern changes with frequency. What I want to d
The trick is to take the dc control winding and it's inductance out of the antenna circuit, which I think can be done with a large bypass capacitor. Here's a simple drawing. The BOG goes to antenna
I have never modelled an inductively-loaded Beverage, but my intuition is that it will not perform any better than an unloaded wire of the same physical length. I haven't modeled for 10 years and e
Sorry for all the extra quoting, I'll try to minimize next time. Hi K4SAV, You have more understanding than most, I started a similar thread on the QRZ forum. I'll try to stick to only one antenna
I'm getting serious about running another BOG antenna, my first was destroyed by a bulldozer after the hurricane. As long as I'm putting in the labor, I want to build the best I can. I have searched
I forgot the link in my last post. https://www.youtube.com/watch?v=QuMwGDK6IhQ&t=42s destroyed by I have searched keep it on the ground, loading idea, for regular BOGs, BOG. optimization would be for
Hi guys, I see certain measurements for the length of a BOG, such as 200ft for for 160 meters. And even a warning on one page, /* "The biggest mistake is making the BOG antenna too long. Try not to
Hi guys, Just saw this page and it presented info that a BOG is a resonant antenna. It gives me a little boost about adding inductance to the antenna to artificially lengthen it. http://www.iv3prk.
Oh, ya, I did run into the choke resonance problem, and haven't solved it. I was told if I use a current source, that the impedance looking in would be high, I'll visit that when I get the variable i
Could someone send me an email on how to properly respond to someones post. I'm used to Usenet where I just post my info below the previous response. But, in that case the text is already there in yo
Thanks for the input K2AV. After reading IV3PRK's webpage I was convinced a BOG is not related to a beverage. His first line is "yes, this is a resonant antenna, nothing to do with beverages!"**http: