70 - 80 feet of 45G using screw anchors in ANY soil would give me the willies. If its "screw anchor" worthy of a load, then why not use 25G? If it needs 45G then, in my opinion, there is no business
Definitely too much compare to what I did here. Concrete locally today is about $150 a yard. A truck holds 7 - 10 yards. If you are using half a truck or more, they will wait for you to haul. I had a
What I have used and would recommend: At least 4 radials. At least one over the water at high tide. If the one over the salt water needs to be short of ¼ wave, so be it, if the others are ¼ wave. If
Bill, If I am reading your post right, you must have a hard wired T connector up the tower to facilitate 2 x 75 Ohm ¼ wave phasing lines. And then you are reading the result of the 2 down at the base
Dan, I have the EF-240. It has a very poor mechanical system. 2 things can break and both should be modified when you repair so that its beefier going forward. The metal tuning wires that also suppor
I live in Vermont and can tell you the answers for VT and NH. It is town dependent. The more rural the town, the more likely you do not need a permit. The more the town is near one of the "larger" (t
I owned and used the EF240X from Force 12 for about 7 years. The antenna actually worked very well once tuned but it had 2 issues. It was very sensitive to its environment on tuning so you could not
Agree on all. Mine?s on a ¼ wall steel 2 inch mast. An a 2800 rotor, which has no problem with it. Ed While were talking about 40 meter antennas. . M2 antennas are ROBUST and the three element a KILL
Dear Towertalkians: Repair Shop - Does anyone know if Yaesu Repair services the in tower units? It seems that maybe they have stopped. They were the only ones that did before. Swappable Parts - What
Thanks Grant. This looks like a project looming for me may this winter. I have a few of these rotor units and would love to get one good 2800 out of them as a spare. I will let the group know how it
I would bring them in with the shortest run of coax, tie the #2 to your ground at entrance for the lowest feedline loss and use low loss feedline (also helps with noise pick up ? remember ?snake ante
Personally, I use my beverages extensively on 40 - 160M and the 200 ft of low loss cable would be really important. Also, not sure if you have ever tried this experiment: Preamp at the radio (mine is
You're going to have to explain that some more for it to make any sense. The total cable loss for 200 feet of RG-213 at 7 MHz is about 1 db. It seems to me that you'd have to have some really horribl
The Telrex has the 4:1 Balun achieved by connecting the phasing lines to the T feed system as shown in the pictorals of their manual. You should feed the system with a ½ wavelength or full wavelength
I used the F12 LL 2el 28ft beam for many years. I found it to be a very good performer. It had about 275khz BW but I had it set for 7225 and below. It was mounted at 80 ft and then later I had it fix
The question was asked about determining resonance of elements that are not "split". What I do, is "split em" to do a normal R/X measurement as a radiating dipole and then connect a shorting wire aft
To my knowledge, Yaesu does not repair the rotor or the control box. They will sell you the control box but its not cheap AT ALL! They will also sell the stand alone rotor without the control box. To
They sold one to me this year as a "replacement" because they refused to fix the one I had. You might want try that track.;-) Ed N1UR _______________________________________________ _________________
I have used both the next size up tubing as outer joiners as well is next size down but "double wall" thickness successfully. 2 bolts through each one and you are good. Lots of my home brew beams hav
I had an HDBX48 for 15 years in W1. It had a TH5DX and a shorty rotary 40M dipole on it. It was a tank. It was bought new in 1980. The key is in the base - build it exactly to Rohn Base and make sure