Simple Rohn 25 Radio Tower Setup And Things.

Nice to see you back. You run one of my favorite channels.

Great to see you back! Interesting video as always. Thankyou!

Thanks for the vid. I always look forward to your uploads.

I have to put up a rohn 25 stick here in the next few weeks. I have been using the same old stainless radio shack discone for over 25 years that has made 3 moves and is still plugging along. I need to squeeze the old Micor cabinet in the new house :) Hope the new place is treating you well. Great to see you putting out content and thanks for sharing !

Great to see a new video from you. That discone performance is as expected. The discone itself has a lower corner frequency of about 100MHz. The tunable whip and loading coil is what gets you your low-band coverage. They're often rated for only 10-20W at low-band due to the puny size of that loading coil.

I enjoyed your video. I am a former ROHN Engineer and I have designed many of their towers all over the world and my specialy was the poles. I also used to monitor an old web reflector web site for ham operators and their antennas. One of my biggest complaints about ROHN was their bad information for their 25G wall mounting. The sales people took a drawing for a one particular project and published it for use for every application. Also the ROHN foundation details you mentioned may have been for a free standing guyed ROHN 25G. The base attachment looks like it is on a sidewalk but I can’t tell. Sidewalks are flatwork and are not structural elements so they could never be endorsed. The good news is you only have axial compression and a small shear load at the base. The failure point on your 25G is just above the wall attachment point and most likly in the tower braces. With that said, limit the heigth above the attachment point and the area of the antenna. There are county wind loading requirements that listed in the EIA-TIA-222 that should be part of the local building code. Normally people get a building permit to install a tower especially on a building. The permit would cost more than the tower because of the required structural analysis by an engineer. So now you have issues with a noncompliant tower without a permit and a your insurance does not know about the tower.. What’s the next video going to be about?

Good to see you posting again! FWIW: You may get a better response out of the discone with a metal mounting mast; but I can understand using the stationmaster shells (i've done it myself!) Be safe!

Many thanks great to see you back.

Good to see you back!

Ditto good to see you back Ed mate, please keep the vids coming! I like to use my colinear for 144 and 435 Mhz but I have a Discone ready to erect for general receive, nice and wide band!

The legend is back!

The 1 cubic yard base in your spec sheet is referring to a freestanding at up to 50'. For your setup with the eve bracket you are still good to 50'. A 24x24x12 pad would have been my preference but you're still good to go.

Hey your back great to see you.

That 3920 brings back memories...of dislike of Aeroflex monitors. 753 MHz would most likely be something in Band 14. Part 90 starts at 764 MHz.

Diggin the groove, bro...!

I would love to see more videos from you, it has been a while.

In dealing with Hurricane Dorian this past week here on the south carolina coast, I'm wondering can you do a presentation or video for emergency HF or VHF/UHF antennas that are either self supporting or that can hang from an existing or remaining structure. By the way, I've got the "RADO" and "COMT" currently on my Red Card. Please keep up the good work.

Welcome back!

You're back!

Just found one of those towers laying behind one of our stations. Missing the bottom plate. But looks like it's never been used