Hmm, I've done this with a gin pole and a smaller hoop of cable at the top. Sounds like a basketball hoop would be great! How in the heck would it help to have a hoop at the top of the tower instead
I think they mean coarse threads (NC). I've gone to a marine supplier and purchased them all before, though I usually end up with 2 1/2" bolts since those are standard and cause no problem with the i
something only carry it's Good point, if they are grade 5 you should see two raised lines on the head of the bolt, hope that makes sense, grade 3 will have no lines on the top of the head, Grade 8 s
If you want to be compliant with the national electrical code, you should be using electrical conduit (the grey stuff). You should be able to get Schedule 40 at the big stores, if you find a wholesal
Actually....the characteristic impedance of the phone wire is more like 100 ohms. The overall circuit impedance should be at about 600ohms when terminated and drawing current. The reason the loading
I'm sure I'll take some heat on this, but oh well. First, I would consider LMR-400 to have a dual shield, not to be double shielded. It has a foil shield which likely provides 100% shield covered wi
I guess my only theory would be that I generally use the feedline to transfer energy from the transmitter TO the radiating system, and prefer that the feedline not be part of the radiating system. I
same >(within instrument error) when I use RG-8/U or small solid-shield heliax. Tom I'm not questioning your experience or testing, but what are the manufacturers of duplexers missing? They seem to
I'm sure you know the difference between balanced and unbalanced feedlines. But..if the shield is no matter, how about taking that RG8X and stripping all that unneeded copper braid off completely? I
Sounds pretty good, wonder if you should share your 'experience' with the folks at the National Fire Protection Association, National Electrical Code, ANSI, IEEE, and all those kind of places? There
burying it I might argue that a copper water pipe may not be 'listed' for that purpose, and as such might not meet the code requirements. NEC 250.52(a)(5) states that electrodes of pipe or conduit s
burying it I might argue that a copper water pipe may not be 'listed' for that purpose, and as such might not meet the code requirements. NEC 250.52(a)(5) states that electrodes of pipe or conduit s
burying it I might argue that a copper water pipe may not be 'listed' for that purpose, and as such might not meet the code requirements. NEC 250.52(a)(5) states that electrodes of pipe or conduit s
burying it I might argue that a copper water pipe may not be 'listed' for that purpose, and as such might not meet the code requirements. NEC 250.52(a)(5) states that electrodes of pipe or conduit s
burying it I might argue that a copper water pipe may not be 'listed' for that purpose, and as such might not meet the code requirements. NEC 250.52(a)(5) states that electrodes of pipe or conduit s
I wouldn't think so, generally the AM broadcast tower is insulated at the base and fed there, so, generally no coax on the tower. Some installations decouple a bit and put a microwave linking antenna
The breaking strength is likely very different (as is the construction) for aircraft cable vs. the galvanized wire rope that I have seen used for saftey climb type installations. The difference in th
are This may be the first time in my life I am proud to be 'below average' 73 Daron N7HQR@OCRG.ORG www.ocrg.org _______________________________________________ See: http://www.mscomputer.com for "Se
this That is one of the jobs of a moderator. I hardly believe it is your God given right to speak whatever you wish on anyone else's forum. You are a guest here, act like one. the As I listen to you
and My after unplugged from to as be if we from mass Sounds like the typical type of challenges one hears in high school, I guess I'm old. I've put PL-259's on with a 150 watt gun, propane soldering