When you're considering the validity of recommendatilons from auto mfrs, consider that some of them are notorious noise generators. Fords, for example, are JUST AWFUL! By contrast, my Volvo S80 is pr
See my webpage for a detailed description of how I do it. The autotuners in my K2/100 and my TS850 are able to tune this. When I use it with a power amp, I tune it with a TenTec 229B. It's far from b
Horsepucky. Jim _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-904
"Green Book" I just checked the index of both books for 'braid" and "bonding conductor". There is no listing for "braid," and on the pages listed for bonding conductor I don't any reference to "braid
avoid running it through conduit Only if the conduit is steel and does not touch the conductor. The "right" to minimize the inductance (and skin effect) is to bond the conductor to any conductive con
Why not? All it takes is one or more driven rod(s) by the generator(s). power Strongly agree. Do the rod(s) at the generator(s), with phase, neutral, and equipment ground carried to each station on d
Safety codes in general require that a power system have its neutral bonded to earth within a very short distance of where it is established. In a building, that would be the service entrance. A gene
Hey right back! This sounds like a wonderful thing for us to do with some spare gear that all of us have hanging around our shacks. I think I've got a couple of spare talkies (with pretty old batteri
Open one up and you will find an electronic circuit that is quite capable of rectifying RF. Any rectification, which is the result of a design defect, is RF interference. Jim Brown K9YC _____________
I've played with a similar product, the ANC-4, here at my very noisy Chicago QTH. My observations are pretty much the same as Bob's -- it can help with a single source, but you need a decent noise-se
Let's re-state that. Product knowledge (or a knowledge of the business) is not a requirement for GETTING HIRED. It CAN BE an absolute requirement for DOING IT WELL and MAKING GOOD DECISIONS. How many
perspective to go through the exercise of cranking through the numbers and troubleshooting with a meter for problems like these. It's simple Ohm's law -- there are copper conductors of known size bet
In doing research for my white paper on power and grounding, I learned that you can buy different types of concrete designed for either very high or very low resistivities, depending on your applicat
I don't either. Some clarifications. I am QUITE certain that any smart engineer would specify that the ground conductor be bonded to ferrous conduit at each end. Why? Because it it was not bonded, th
it is not a matter of "cheap" or "name brand," but rather the purpose for which the particular ferrite bead or sleeve is designed. Go to www.fairrite.com, download and study their pdf catalog. It is
The literature disagrees with you. So does NEC. See the IEEE Emerald Book and Green Book. Also see Ott. The conduit DOES greatly increase the inductance of a wire within it that is NOT connected to t
Sure -- my shack is on the second floor, I run a big amp, and grounding is not an issue. There are several keys to this. 1) A connection to earth has NOTHING to do with keeping RF out of your gear, o
About 30 years ago, I worked for an MATV contractor who had lots of installations in high rise buildings on Chicago's Lake Shore Drive, in the shadow of VHF and UHF transmitters on Hancock and Sears,
Channels 11 and 13 are NOT severe -- there is vertical directivity in their antenna system that knocks their signal down by AT LEAST 6 dB and probably 10 dB in the 1-3 mile range. The example I gave
ends I am a huge fan of 3-wire dipoles fed with 50 or 75 coax, where there is a center insulator (and balun) and 3-resonant dipoles attached to it. See the ARRL handbook for details. Cut each dipole