Author: Dennis OConnor via TowerTalk <towertalk@contesting.com>
Date: Wed, 5 Oct 2022 00:05:50 +0000 (UTC)
Some wild speculation posted here. Do I know what the voltage is at the tip for a 1500w PEP drive? Nope.I'm just a brain dead old ham. What I know is that the voltage is not "infinite because the cur
I have Osprey's mostly here...Seems like I get fledglings every year hang out for a few months and then move on...He sleeps there every night on my 70cm yagi on the mast top...There is a picture of t
I had Telrex antennas up for many years. Once, I saw some large bird sitting on the the boom of the 15 meter antenna at 85 feet. I looked again and noticed that the talons went all the was around the
I have OWLS in the night and Turkey Vultures in the morning perched drying there wings in preparation to Soaring flight. Both are protected be law the Vultures use to short out the loading wire on th
I have Great Horned Owls that hang out on my tower's . They'll have a who off in the mornings just before sunrise. They leave presents at the base of my towers, normally the fur of an eaten mouse.
I have Harris Hawks perching on my beam a lot. There have been as many as six at one time. I'm always reluctant to turn the beam when they are there. They are rare in the way that they hunt cooper
I hope that it isnt a Robin family. Robins are real predators at my qth in Western CT, each year routinely attacking other birds minding their own business, including a large red-tailed hawk and a Gr
Nice to see a post where someone isn't advocating getting out the shotgun or bazooka but is willing to be patient and let nature take her course. HI 73, George VE3YV / K8HI -- Message: 4 Date: Wed, 3
Is there a 64 bit version of *DIPCAGE2.EXE? Thanks 73 Jim W7RY * On 10/22/2013 5:56 PM, Bryan Swadener wrote: My 4-wire cage inv vee was cheap and easy to build. It's a proven design (W1AW has been u
My 4-wire cage inv vee was cheap and easy to build. It's a proven design (W1AW has been using one for decades). While the free design program on smeter.net gives all the data, even using the simple
I have already received many requests, in a matter of minutes from my posting. I will get the Dropbox set up as soon as I canand then will send the links by reply email to those who responded. By the
The 18HT is a very good antenna ..over the years I've had then in a single/dual and triple combination.....The key to the performance are the grounding system and the radials....Take GREAT care in th
Could you post the dimensions for those of us without 4nec2? Here is a similar wideband 75/80m dipole with direct 50 ohm feed and a little more mechanical complexity than your design. It sims on EZNE
When you say open sleeve, do you basically mean something where the apparent diameter of the conductor is larger (e.g. like cage dipoles, bowties, biconicals, and to a lesser extent, fan dipoles)? In
These types of schemes (of which there are many) are generally inferior to what you can to with a lumped element network at the feedpoint. Plus with the LE network, the antenna is ordinary wire, and
Hi Stan. I have been struggling with 160 myself. I have an IAC 160M bazooka inverted L that is fair. I was wondering if shunt feeding my HG70HD tower would do better. I have alot of aluminum at the t
As others have observed, that is simply false. There are four basic requirements for an antenna to "work." 1) It must accept power from the transmitter, which infers some reasonable match to a transm
Don't believe everything you read. :) That's true -- the more you shorten it, the greater the compromise in radiation efficiency and bandwidth. Someone else asked: It's similar in concept, but the an
Tom, Give it to another "Friend", my 40/80 meter wires always worked better for me, if you have the room go with wires, inverted L's on from the tower. You might try a Double Bazooka, one for 80m and
WOW! What a great help you guys have been. I now have a handle on the procedure of this critical connection to the outside elements. Putting all theese emphirical solutions together I will proceed wi