For most purposes 7-10 days should be enough to begin building a tower. No need to wait one month unless you are building a monster tower. Dale - N3BNA The Concrete manuals say that concrete will re
Doug: I like Stan's idea. I think that you also could do the same thing with a smaller pad of cement above your existing pad. In any case you would have a cement pad above ground encasing the sligh
Here are photos from our 250 foot AM tower in southern Haiti. There is a story about this tower here http://www.onz.be/Gelezen/ham%20mag%209.pdf This tower was located in southern Haiti near the ci
Pray for the people of Haiti, not for the towers. But here you can see some photos of tower damage. One of these towers was built only 9 months ago. https://photos.google.com/u/1/album/AF1QipONL9xRM
Some readers have informed me that previous links did not work. Here are some photos of the big AM tower and three FM towers that came down in southwestern Haiti. Please keep the people of southern H
Tony For years I used a simple tuned stub inserted in the 40m feedline, (in lieu of a tuner). I would use it only for the contests. Somehow through station changes I lost it or used the coax for some
This brings up a related question. We lost a lot of towers in southern Haiti during Hurricane Matthew. Most of them were newly built 100-120 ft Rohn 25 towers with adequate guying and torque bracket
These are for grounding Rohn25. We need something for Rohn67 <Jeff, I know this is not answering your question, but six of the tower leg ground connectors that N0AX suggested here last week showed u
Gentleman: I have a German colleague now in Haiti who is begging for advice. He wants to ask some questions about soil structure and guy anchors. The tower will be a 250ft tower. The guy anchor pr
They were replacing cross-braces, according to reports. Whether that was related to the tower failure is not certain. Dale - N3BNA From: Wayne Kline <w3ea@hotmail.com> To: "sawyered@earthlink.net" <s
Paul Perhaps less interesting, but simple, would be a sloping dipole/vertical dipole fastened to the top of the tower. Unless you have a very short tower, this can be an effective antenna on 30m. I
Better to use stainless steel washers between dis-similar metals. 73, Dale- N3BNA I will be doing coaxial grounding on shack entrance. Need to install ArraySolutions AS-303 surte arrestors on a coppe
I like to purchase these items from Joel at RF Connections. They have a large selection of connectors and really understand their customers needs. Dale - N3BNA On Tuesday, October 8, 2019, 10:16:06 A
Yes it is. RG8X is perfect for that use. Above 20 Mhz you may want a lower loss feedline.There are however different qualities of RG8X on the market. 73, Dale - N3BNA On Wednesday, October 16, 20
K7NV is the expert on prop pitch motors. He refurbishes them for resale. He probably would buy them, unless you know of a big contest station who may buy them. Take care of yourself. 73 Dale - N3
From an estate sale and my stock I have several small prop pitch systems in working order. Contact me off-reflector if interested. Thanks de N3BNA. _______________________________________________ _
Polygon rod badly frayed in Haiti - not sure if this link will work. https://photos.app.goo.gl/mupQkxToWop2amj9A I would never suggest polygon rod for any tower guying. Dale - N3BNA I have lots of ex