On 2022-01-21 3:56 PM, Jeff Blaine wrote:> The argument in support of using high elevated radials is not supported by the N6LF data. In fact the data Rudy has says even a slight elevation from groun
On 1/22/22 9:21 AM, Robert Harmon wrote: I love your perfect QTH description. A hill of salt water, sloping gently in all directions. hihihi Calistoga has hot water under pressure, and I'll bet it's
This presentation goes into excruciating detail on how to make all the necessary design calculation to setup and optimize the Comtek style hybrid in a 4 square array: https://www.kkn.net/dayton2011/D
My HDX590 tower is 90 feet fully extended. By attaching to the side of the mast 15 feet up I can have an attachment point at 105 feet. I am envisioning hanging a vertical dipole from the 105 feet poi
I appreciate the feedback. I am going to test my soil conductivity to see if I can get a handle on it. You got me thinking, how about if the top and bottom horizontal wires were T shaped rather than
What's interesting is that the directivity of a infinitely short dipole is 1.5 dBi, and a full size half wave is 2.15 dBi. So a shortened dipole with capacity hats, loading coils, or matching netwo
On 1/30/22 1:57 PM, Mike Ryan wrote: There have to be dozens of readers here who have or HAVE HAD AM broadcast AM radio interference on 160m and even on 80m. I found some old contributions to the sub
I think you mean Mike - I was just suggesting a tuned trap. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting
Unfortunately I didn't have enough cursors to put one in the AM band, but an eyeball guestimate is that the better ones will get you 15-20 dB at 1420. That report includes measurement for a vintage
Maybe it's a drawn out process... It was probably October, or November when I first came across a filter I was looking for. Specs were a bit scrambled, the description was one thing, photo another,
On 2/6/22 9:27 AM, Randy Farmer wrote: Strange. I've got loads of them in many places in my station antenna switching and have never had a problem. Since I recently acquired a new NanoVNA-F and have
That makes a whole lot more sense. 1.6 dB (~20%) loss on 160m would be enormous <grin> 73... Randy, W8FN On 2/6/2022 1:08 PM, Lux, Jim wrote: On 2/6/22 9:27 AM, Randy Farmer wrote: Strange. I've got
I have just found a reference to it and was wondering if it is any good? 73, It's basically a front end for the NEC2 engine. _______________________________________________ __________________________
The hard part is how the metal roof is grounded. With NEC4.2 a buried ground can be set up, not so in NEC2. Connecting the roof via something (mesh, separate wires) can take a lot of time to set up
Ken WA8JXM Is it time to mention that of course the owl faces north, and that's what you should use as a reference. BTW, I'd use true north as zero degree reference. Declination is always changing.
On iPhone, I like Theodolite from Hunter Research. It's inexpensive, and it has a lot of nice features. You can point at things and get elevation angles and azimuth, it can put up a reticle to meas
But an equalizer plate makes a much nicer install; in the end you'll be glad you did it that way. It's not to "equalize" tensions, it's to provide nice easy turnbuckle terminations. It should be call
John KK9A If it's a really "open" wire line (as in two conductors separated periodically by a small spacer, almost nothing, other than the wire gets clean. If it's windowline, which is dielectric cov
Fiber is cheap and reliable ($100-200 for "media converters" plus the fiber. the "per foot cost" of fiber is quite low. Running power out is actually fairly easy (probably easier than running coax).
On 5/18/22 7:51 AM, Kim Elmore wrote: I don't mistrust contesters that tell me they're certain of this, but... I'm wondering how they *know* that the difference is 1-2 dB on the *receiving* end? If t