A common device to use to protect against surges and the like is a tranzorb or varistor. They aren't meant to take a direct lightning hit (likely vaporize like most everything), but are useful for pr
I can't imagine that the fence would improve the Beverage...it would probably have a negative effect - mostly on its directivity. However, even short, unterminated, poorly grounded pseudo-Beverages w
I searched eHam's links for Kenpro and got one hit - seems to be a dealer in Australia listed http://www.strictlyham.com.au/ A copy of the manual is available at http://www.w7fg.com Mike N2MG
This was quoted recently (without apparently, the writer's explicit permission): <<...the bill would allow 95 feet WITHOUT a variance hearing.>> Did I miss something? This quote seems to suggest that
Mark, This topic was kinda beat up last month on this reflector. Apparently there are a lot of reservations regarding the so-called non-resonant length table the ARRL has been publishing. Just go to
Home Depot stocks (around here anyway) Rustoleum's Cold Galvanizing Compound in a spray can. $5 for 20oz can. Located with the other spray paint. No idea if that brand is any good. -Mike N2MG
I believe Celwave bought Phelps Dodge. I tried www.celwave.com and was redirected to: http://www.rfsworld.com/ Search for "stationmaster" in "product search" -Mike N2MG
I agree with most of N2EA's post except: This is not true. As has been oft-discussed on this reflector in the past (and still misunderstood), judicious use of "added pulleys" can reduce the total loa
Jim, Wrong pulley/wrong place. A "movable" pulley, located at the mast (load) in a common "block and tackle" arrangement serves to reduce the force necessary to lift the mast (by 2:1). This reduction
I think a "second attachment" is what we are talking about. In my scenario (2:1) the lift line runs up the tower (from the ubiquitous snatch block, of course!) to the ginpole pulley. Then down to and
When I use preforms (generally 3 at a time) as temporary grips, I paint = them with day-glo orange so I know never to use them for permanent = installations, but they can be used several times effect
K7LXC replied: I was considering a similar arrangement: an Al plate with bulkhead UHF connectors mounted to the aluminum siding of my garage - backside of which poking into the garage - all perhaps c
This is probably the single most effective method for protecting your amateur equipment. Even the SPG cannot be counted on entirely protecting your stuff from nasties. And one does not need to take a
You quoted my entire post, so I'm not sure with what you are disagreeing. My conclusion was that a single point ground was good/necessary at or near the cable entrance point even if disconnecting cab
Go to Global Engineering Documents http://global.ihs.com And enter TIA/EIA-222 in the search tool at upper left. It's dated 1996 and supersedes the EIA-222 of 1987 or so. It's $104! 73 Mike N2MG ____
That's OK - reminded me of all those who spell privilege with a "dge". Maybe you were really thinking of Walter Pidgeon (the actor). And we colonists won't pick on your (mis)spelling of apologize eit
In PLP's (maker of Big Grips) instruction sheet they go one step further - they state that thimbles (when used alone as in thimble-to-thimble joints) have been known to collapse (under "high tension"
What do you do with that "room common point" if it's not near the service entrance ground? Mike N2MG ________________________________________________ PeoplePC: It's for people. And it's just smart. h