Hello Jim, Thank you for this. I don't doubt for a second that my elevated 1/4 wave radial currents may be unequal. I should throw together an RF current meter and check them sometime, and add more r
Hello Greg, We see the photo there. How big is your lot? If there's any way to get coax from your house into those big woods to the east or west, you might have it made. You could use the trees as an
Here you go: www.mouser.com/ProductDetail/Ohmite/OY471KE I have never lost one of those to a nearby strike. 73, Mike www.w0btu.com _________________ Topband Reflector
Good points, as usual, Tom. Corona --besides greatly reducing the breakdown voltage-- can also generate ozone, which can gradually break down some dielectric materials. When I worked at Owens-Illinoi
Bill, If you lengthen the L portion, you will raise the feedpoint Z significantly. As I mentioned here last month, my inverted-L is about 155' long (vertical portion also about 55'). The simple 2-cap
It was not in the NCJ, Carl. (At least not that I'm aware of). It was in the ARRL Contest Update newsletter at http://www.arrl.org/contest-update-issues?issue=2013-09-25 73, Mike www.w0btu.com ______
This is the feedpoint choke I use on mine. Based on an effective K9YC design (thank you, Jim!). http://www.w0btu.com/files/antenna/160m_inv-L/ The 4 stacked cores are 2.4" OD #31 Fair-rite (7 bucks e
Carl, It sounds like you are asking if transposing the two Beverage antenna wires at either end will make a difference. It will not. For a single, bi-directional Beverage or BOG, phasing does not mat
Bill, For a bi-directional Beverage, the termination resistor does not go at the far end, regardless of whether you feed it with one coax or two. A reflection transformer goes at the far end, and two
Speaking of the night sky, there's a meteor shower tonight, which I didn't see on that URL. And right after sunset, which is unusual since most showers peak before dawn. Some years this particular sh
Can't wait! :-) This will be my first 160m contest ever (at my own QTH) using a legal limit amplifier. However, the last CW contests (SP in December and CQ 160 in January) were still great fun even w
Whatever you use for wire, it needs to float at the supports. Anchor it at only one end and tension it tightly at the other end. I use my own ladder line, made from .061" diameter plated steel electr
Thanks, but I realized that. I was just curious, because somewhere I read that the FCP had a slightly narrower bandwidth than a couple of elevated radials. 73, Mike www.w0btu.com Mike, The wider the
I think I see why you said what you did, Tom. If we replace the two elevated radials under our inverted-L with an FCP, and the bandwidth gets a little narrower, then yes, that doesn't prove that we'v
Thanks, Jim. One thing seems certain, and that's that K2AV's FCP is plenty efficient enough to allow hams with HOAs or limited space to get on 160 with a really good signal. The FCP is on my long lis
A steady carrier from fish net beacons doesn't fit the pattern of the ones everyone has heard on 160. That would deplete the batteries fairly quickly. All the ones I know of send a short carrier and
It's mostly S8 on my SE 580' Beverage here in SW Missouri. Rather fast QSB down to S6. On the NE 580' Bev, mostly S3 to S6, but I just saw the signal about equal on both antennas. 73, Mike www,w0btu.