Put a pair of lawnmower sparkplugs from each leg of ladderline to ground. If you can't visualize this, I'll send you some photos (they'll help bleed static to ground). Also, put around 3-6 megohm res
Correct. In addition I just sent Tony & a few others pix of my sparkplug + resistor bleeder kludge. None of this is my invention, nor magic, just copying other people's good ideas. Also not guarantee
a) A couple thousand +/- ? b) Don't know...tubes? Solid state? But in in any case, probably a lot less than a couple KV! _______________________________________________ ______________________________
Correct. You could add some hi-ohm resistors to bleed static. You could spent money for a gas discharge suppressor for each leg of an open wire feedline. And/or you could ground or disconnect the fee
Who knows? The resistors will bleed off small charges but might pop with something big. The spark plugs may fire with something bigger. With something really BIG the only protection is to not let tha
I would ASSume (famous last words) that the LM354 and LM472 used the same hardware? I have the LM472 and can inspect, measure, and take photos if you wish. I'm pretty sure I have & can share the wiri
I actually looked at some of the material suggested and found it interesting but way too much reading (most of your audience will not like to read, or will not be good at it) and way too technical fo
Mike: Can you send me a photo of what you're looking for, or refer me to a drawing in the LM470 manual? I think I know what you're talking about but want to be sure. I bought my LM470 from a SK estat
Seems I saw a post here within the last year that diagnosed the cause of blackened copper shield? My case: I have a buried run of Cable Experts RG213/U Mil Spec, supposedly good for direct burial. It
Thanks...will see what we have. I have a vision of peeling the braid all the way back to the hamshack! Could be this "direct burial" stuff really wasn't, and the jacket allowed moisture to get into t
Hmmm...interesting. We too have the invisible dog fence, and I have something like 100' of 14 or 16 gauge insulated household wiring as the buried loop. Have not had any occasions to dig it up or spl
So you think the "black hair" I see might be contamination from the jacket versus oxidation? This could be significant, as I might have a chance to use a solvent to clean contamination, but cleaning
It was already black when the mower got to it. The problem could have been there for several years. Some years back this feedline had a Carolina Windom (off-center fed 260' dipole), feedpoint had coa
Hi Rob... I am coming to the same conclusion. The black braid RG213 I have is probably shot, no matter what the reason. Fortunately is a relatively short run. My application is < 7 Mhz, loss not an i
Thanks for your input Steve...this is good info, and could be the issue here, as the severed coax was above ground level (barely), however most of the run is underground and I expect the same deterio
All the Yaesu rotors use +/- DC (approx 9-20VDC) to Pins 4 and 5 of the rotator. Take a voltmeter and measure Pins 4-5 on your controller...as you increase the speed potentiometer, the voltage should
Crimp AND solder the ring lugs. Use star washers. (You can wrap the wire on the bolts, but over time they will get loose and will oxidize and resistance goes up.) Once you have your connections clean
I have a 300' spool of new/unused direct-burial CAT5E (350 Mhz) wire. Nice stuff, UV, IR, and water proof, black jacket, outside plant type. In addition to LAN wiring, will also make great rotor cabl
Maybe here? http://www.kineticllc.com/catalog.asp?prodid=672201&showprevnext=1 73 dan k0dan _______________________________________________ _______________________________________________ TowerTalk m
I would not suggest solder as primary bond. Rather, use bolts, nuts, and star washers to bond all your big groundrods/bus. If you want, you can add I would not recommend burying in concrete, rather,