Author: WØUN -- John Brosnahan <shr@swtexas.net>
Date: Wed, 06 Dec 2006 07:48:29 -0600
Yep, the coax cable connectors are mounted on a small pcb copper ground plane that is tied directly to the ground on the outlets. And the telco line is also grounded the same way. In addition, the te
Author: WØUN -- John Brosnahan <shr@swtexas.net>
Date: Thu, 14 Dec 2006 08:57:27 -0600
I was always a Digi-Key guy (founded by a ham) but after moving to Texas I have been impressed with Mouser as a distributor of an amazing number of products. Very prompt service and the best prices f
The VF of solid-dielectric cables is much easier to control than that of foam cables. For a solid cable the VF is just a function of the properties of the dielectric material. But for FOAM cables the
Hi, Charles, Welcome to the wonderful world of condensation. It is virtually IMPOSSIBLE to seal out the moisture. I learned this a LONG time ago and yet I had engineers design antenna matching networ
My experimental results confirm what Rick has observed (with all due respect to Tom and Jim). I built an RX array in 1989 using three sets of crossed dipoles. Each dipole was about 10 feet above the
Tom-- Well, not missed by me. BW of the receiver is matched to the BW of the desired signal, whether it is a DX station or in my case a radar pulse echo. In fact the received wide-band pulse is sprea
Ian-- I LOVE my AIM 4170. Get one!! Some USB adaptors seem to have some issues (different chip set??) and some don't. One of mine worked and one did not. Array Solutions offers a USB adaptor for the
(an inordinately long post -- and well worth it!) William-- MANY THANKS FOR YOUR POST I have been making this same claim for years, with a few caveats, such as the elevated radials must not be too cl
W5UN did extensive A-B measurements between a collocated elevated radial system and an extensive, ground-mounted radial system. And Dave chose the elevated radial system for his 4-squares on 80 and
I have found Lodestone Pacific to be an excellent source of Fair-Rite products in smallish quantities. Plus they have a lot of technical info as well. http://www.lodestonepacific.com/fair-rite.php Th
With all due respect to W2PM, K7RA, and Ken Tapping there is still some debate about the upcoming sunspot cycle. While not a "Maunder Minimum", the debate is significant enough that the NOAA Space We
Cecil, you just need the proper flux to solder stainless steel. I use Duzall and it works great. Of course it is an acid flux and you should wash it off after soldering. You can usually find it at we
Beverage termination resistor source: The gold-standard Globar is still out there -- but it is called the "gold-standard" for a reason ($$$). But when you invest all of the time and money into a Beve