That's the one I prefer. Wes N7WS http://hamwaves.com/antennas/inductance.html Rick N6RK _______________________________________________ _______________________________________________ TowerTalk mai
For insight about silver plating see: http://k6mhe.com/n7ws/Plating.pdf I could tell a war story about nickle under gold on an X-Band waveguide IMPATT diode test oscillator. Wes N7WS And how to get
I don't have the OB9-5 but do have an OB7-3, which is two element on 15 and 20 and 3 on ten. I've modeled it and see about 10 to 11 dB F/B (freespace) on 15 and 20 and about 20 dB F/B on 10. I woul
Oh, the irony. As a means for cutting down on unrelated posts, please consider filtering out any incoming TowerTalk posts that contain the wording "off-topic" in their subject line. 73 Warren KH6WM _
My first wife's father operated a marble quarry a few miles east of Tucson. He blasted all of the time. Once he asked me to pick up a case of dynamite for him from Apache Powder Company near Benson
No. I am wondering if Ladder Line can be run on the ground or even buried?? Thanks for any info. 73, Ted K2QMF _______________________________________________ ________________________________________
I believe that ARRL (QST) published something. Unfortunately, their website, search tools and indexing are absolutely abysmal and an affront to the membership, so I gave up the search. Wes N7WS On
Way too many unknowns. Where did he calibrate the VNWA? Was the balun/impedance transformer in the calibration path? If so, what standards were used? Standard practice would be to make both an open
It's been 40+ years since I worked on the program but my recollection is that the wire on the TOW missile was under ten mils, including the insulation. A story that I heard was that during the concep
I wrote about some of this in this forum back on 4/13. BTW, my paper was never in QST but it was in Vol 6 of the ARRL Antenna Compendium, p. 174. A draft copy is here: http://k6mhe.com/n7ws/Ladder_L
No experience with this antenna, but 1/4 OD should be a even better (snugger) fit in .058" wall than .049". Wes N7WS On 5/30/2019 11:00 AM, AE5B wrote: Rebuilding a M2 6M7JHV after losing the tower
You're kidding, right? Wes N7WS Chuck W5PR No experience with this antenna, but 1/4 OD should be a even better (snugger) fit in .058" wall than .049". Wes N7WS On 5/30/2019 11:00 AM, AE5B wrote: su
I own the following analyzers 1) N2PK, 2) DG8SAQ (SDR-Kits) 3) FA-VA5 4) Rig Expert AA-55 Zoom 5) EU1KY Having grown up in a lab using a waveguide directional coupler, BWO sweeper, diode detector and
Best read the specs before using with your legal limit amp. https://www.timesmicrowave.com/Products/Lightning_Protection/Times-Protect/LP-18/ Solid signal has them for $35.00! https://www.solidsignal
Back when I was on EME, we didn't have the knowledge or material to use ferrite chokes, but that might be the way to go now. On my one balanced-line fed array, I manufactured a coaxial sleeve balun
In 1963 the tower for KTHI-TV (now KVLY) was completed making it the tallest structure in the world at 2063 feet. I've been there and it is a sight to behold. According to my GPS the guy anchors are
"The Pencil" and "The Book on the Bookshelf" are good reads too. Thanks for the tip. Wes N7WS 73 -- Larry -- W1DYJ _______________________________________________ __________________________________
It's possible they were shipping old, pre-tariff stock. That said, I think it's usual for companies selling commodities, gasoline and lumber for example, to sell current inventory at the price repla
Maximo, The easiest, although expensive, source is https://www.dxengineering.com/search/department/rigid-tubing?SortBy=Default&SortOrder=Ascending&N=department%3Arigid-tubing%2Bpart-type%3Aaluminum-t