Discussion in 'Ham Radio Discussions' started by W7UUU, Oct 26, 2020.
Thanks John! Happy New Year to you as well
Happy day! They got the garage doors installed, the siding in place, and ready for the man door into the shack space! Great way to finish off the week!!
Looks good, Dave!!
I texted the photo to a friend... his comment? "Nice train station"
Glad work is progressing as quickly as it is! Have an enjoyable, safe, and Healthy New Year for you and Anne.
Slow but sure: electrician finally got his permit issued so was out yesterday roping in Romex for outlets.... ALL of the outlets will be quads - LOTS of circuits for the main shack position, including 3 locations for 220 outlets for different amp positions (all are in parallel - but I would never run power on two amps at once - it's just to allow location flexibility)
Power company comes today to turn all the power off for the day, while the electrician changes out the power panels (2x 200 Amp + transfer panel for Generator to well power)
That's excellent! It is always good to see a project done by radio amateurs being done right.
BUT - it's always important to understand not only the specifications but the reasons for them.
For example, making the tower foundation and guy anchors larger and heavier than the specification calls for can't hurt anything but the budget. Making them smaller and lighter can easily result in catastrophic failure (Fudd's First Law of Opposition). "Rules of thumb" aren't good enough!
OTOH, some might think that using more and thicker guy wires than specified is a good idea - more and thicker is stronger, right? And in many cases that would be a good idea.
BUT - using more and thicker guy wires increases the vertical load on the tower. That might not be a problem at all - or it could be a very big problem if the tower can't take the added vertical load. Hence the need for a structural engineer who will do the calculations for the entire design and show that it's OK.
The engineering history books are full of examples where the calculations weren't done, or weren't done correctly, and the result was a catastrophe (Quebec Bridge Disaster) or expensive rework (Citigroup Center Tower, NYC).
There will always be those who will say that they put up a tower "their way" and never had a problem - that the specifications and codes are "too strict", that "they know what they're doing" and such.
Yet you never hear a real professional say stuff like that - because they know.
73 de Jim, N2EY
73 de Jim, N2EY
Truth. Along the lines of professional electricians explaining code requirements...
Thanks Jim - in my case, that's exactly why I hired professionals - it was all engineered and installed by professionals - I just watched (well, and paid their bills Professional tower work is NOT cheap!!)