UF is probably not the ideal cable for most outdoor uses. The jacket on all of the UF (Ultraflex) Times cables does not withstand UV as well as the non-UF cables. Any sun-exposed use is likely a trad
More like $100 (used) these days for the next step above an optical level. Surveyors use much superior stuff now, building contractors are going bust right and left - I'd check the pawn shops. 73, ge
Well, half of it's true, but the end result is the same. The rivets are aluminum, but they get et up (past tense of eat ;-) by the hydrochloric acid pickling bath that is one of the early steps in th
I used to have a longer set of cowtails, but I replaced them with the DBI Sala Model 1244409 Y-lanyard. It's one of the ones that shrinks in length when there is no pull on it, down to about 3 or 3-1
I would think the gas tube would be ok, low shunt C and all that, but the MOV would likely be bad. I use dual-element gas tubes across the line on both ends of my bi-directional Beverages, and althou
Well hell, son, it's bob wahr everwhere... ;-) 73, geo - n4ua (who shares his 80 acres with cows in semi-rural VA) _______________________________________________ ____________________________________
Since I never seem to have the perfect wire size to fit my regular Cadweld molds or the oneshots, I keep a little thin copper shim stock (I think it was originally roof flashing material, maybe .010
Are you correcting for tapered elements? 73, geo - n4ua _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
Dunno, Dave, but I ran into something that sounds like that, about 30 years ago. The center conductor was something with measurably higher resistance than copper. I was told it was for making delay l
One of the first steps in the re-galvanizing process is to completely strip the old galvanizing and surface rust/ mill scale/etc using an acid dip. After that step, the tower is bare steel and any ad
If you can tap the rf off of both ends (grab it before the antennas), you should be able to duplex the signal onto your beverage feed line. Then, you are only limited by the loss of the bev feed line
What I'm doing on my rotating tower (R45) is to have a mast at the top that has its own rotator. Green Heron controllers on that top rotator and on the prop-pitch that turns the tower are networked (
Go ahead and use the Romex. You aren't allowed to run mains voltage (120/240) in the same conduit as non-power cables, which is not your application. 73, geo - n4ua __________________________________
I believe you need to change the control board to the one that's in the 300A. If you download the 300A manual from the MFJ website, look at Figure 19 which is the control board schematic. It should b
I believe that the Telrex 40s were less than full length elements - that is certainly true for the 40M329 (29 ft boom) and the 40M335. I have one of each in the barn, and they both have shortened ele
I fall into the "don't paint it if it's galvanized" camp - if the galvanizing is in good shape, leave it alone and, if it's not, have it re-galvanized. Spray-on and brush-on cold galvanizing compound
Greg, If the Rohn 25 was in decent condition (had some galvanizing in the joint section), gravity and the bolted connections will provide adequate connection between sections. I wouldn't worry about
16k-bux and it doesn't even cover 160... 73, geo - n4ua _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
All concrete has aggregate composition - gravel, sand and concrete. The gravel can be crushed stone or rounded stone, and the "aggregate finish" refers to how the top surface is finished. If you want
TT, I tried to use a surplus HV line insulator on my 160 Rohn 25 vertical, but I couldn't convince myself that I could keep it stable and loaded in column (vertical). I finally made my own base insul