If anyone has an interest in modeling the V-Beam, I have placed a 4Nec2 input file at the top of my QRZ.com page. The Cartesian angle computation allows for changing the included angle and leg length
I've only used 4Nec2 and not EZNEC. Someone else on the list likely has an answer. Paul, W9AC Thanks Paul! Do you know if 4Nec2 files be imported into Eznec? _________________________________________
SWR peaks and valleys are part of every LPDA design, but you'll need to get the LPDA well up above the ground for any meaningful results from your VNA. Paul, W9AC I have assembled my 19 element LPDA
The LPDA does not use a parasitic reflector. Pointing it straight up with the low frequency element anywhere near ground level will not give an accurate swept result. The LPDA needs to be raised up i
Although a good resource, the W8JI material doesn't directly apply here. The LPDA that W6DSR describes is in a league of its own with alternating element phasing that occurs inside a lattice truss. T
Paul, I am looking into a high power Wi-Fi solution to get our remote site off DSL. The footprint edge of the Jacksonville-Comcast Xfinity service area is approximately 10-12 miles away. The idea is
Jim/Gene: Another list member sent me this useful path design utility for the AirMax product but appears useful for other systems. https://airlink.ubnt.com/#/ dual pol antennas available, although yo
If considering the 40m 4el. JK Grande and M2 LL models, also look into the full size, 4el. M2 OWA. I don't believe it's advertised but can be ordered as a special product. N4CC and I use one at our r
Anyone on the list have a schematic or manual for the Antenna Mart series of rotary RF switches? These were once produced with 4, 5..up to 9 switch positions. The unit here will be used at the N4CC-W
"This B&W Antenna sort of reminds me of the infamous MaxCom antenna feed which gave a VSWR of less that 2:1 from 1.8 to 30 Mhz sold for a while in the 70's and 80's. After scamming thousands of hams
'In 1962, as newly minted novice KN1VFX, I purchased a Gotham V80. The ad said it was the best thing to work the world on 80M CW, and radials were not "required."' And as radials are added, increasin
rod." That assumes the soil content is the same along the depth of the rod. After driving 50 ground rods in sandy soil conditions last spring, there was no substitute for rod depth - at least in our
Shane, Jumping in here...Like you, I use an advanced device for measuring earth resistance. It's a clamp-on earthing tester from AEMC. But if you're discussing bonding resistance, a Simpson 260 or DM
Jim, Been a while since I've visited that Powerpoint. Most excellent. I did note one possible discrepancy concerning equipment chassis ground points (and unrelated to the current Lightning & bonding
way of responding to RFI complaints. So you should have to do no more than call the regional office and ask for the engineering department stating you are a customer with an RFI problem. Many utilit
It's a very capable controller. The M2 PP controllers can be easily modified to equal, and even exceed the performance of the K7NV RT-21 units. Like the RT-21, the M2 controllers also have PWM speed
not "one size fits all."' Starting with the title in that link. Since defamation cases largely fall under state law, that means state case law and state statutes apply in these cases. A legal theory
soldering PL-259 connectors a breeze. I wish that I had bought one decades ago. They're great in applications where the surrounding metal work sinks the majority of heat. In addition to American Bea
Part 2 of W9EHQ's video shows his method of installing PL-259 connectors onto smaller cables that require a reducer (e.g., UG-175). For the last several years, I've been using a similar technique dev
this kind of backwoods engineering when a better way has been available for decades. I guess old habits die hard." If you mean crimped connectors as a "better way," I agree when they're used either