One of my LM470's had a Hygain HDR-400 (a very early HDR-300) in it. The diagonals in the area where the rotator mounted had been modified to allow installation. I use a T2X in my present LM470. I ha
In Phoenix, Arizona you have to stay away from the newer (after 1980) subdivisions. You either have to get right down town (in the older area) or out in the country. Even in some parts of rural Arizo
I suggest that hams in the Northern hemisphere use the North Star as a reference for true North. Perhaps you could use the Southern Cross? de Paul, W8AEF -- ZF2TA FO8DX FO0PLA 8Q7AA XZ0A -- Dear frie
BUT - The CC&R's that are in effect when you look at the house may not be the CC&R's that are in effect when you close on the house. The only protection you have is to stipulate that "buyer must appr
If you fasten the tower to the house you may hear wind noise on the tower in the house. I would locate the tower such that I could use guy wires but fasten it to the house first. Then if the noise be
It is my experience that buried radial length is not terribly important so they would semi-work with a phased array. Elevated radials should be resonate so if you cut them short you would require loa
If you want to see my 80m 4sq go to: http://home.att.net/~w8aef/wsb/html/view.cgi-home.html-.html It is guyed and it has survived 50mph winds. -- ZF2TA FO8DX FO0PLA 8Q7AA XZ0A -- de Paul, W8AEF -- Or
KI7NF motorized a TX-455. I have .BMP's of his article, unfortunately I do not know which magazine it appeared in. I priced the parts last year at about $500. Try trekkie-hamcat.juno.com I can email
Probably the outer traps on the driven element are zapped. The sleeve will come off with the proper amount of applied force, and the coils are easy to wind. I used denatured alcohol to clean the carb
My first thought on starting to read you query is - do as I finally had to do - locate the noise source yourself. It sounds to me like you have done that. I don't believe that down guys by themselves
Actually, if you tin the coax braid after you strip the outer jacket but before you trim it, then use a small copper tubing cutter to cut the braid, assembly and soldering PL-259's are easy. Just use
I made my own switch box. I used 10 amp Radio Shack relays. I have had one relay burn up on me when I was having trouble with one of my mono banders, and I burned the insulator on an SO-239 when the
Connect a carbon variable resistor across the output of the balun. Tune the MFJ to a desired frequency and adjust the variable resistor for minimum SWR on the MFJ. Measure the resistance of the varia
The hardest part of tower work is climbing down. You are tired, you may or may not have completed the work, and climbing may not have your full attention. So at this point be especially careful ! de
The trick here is to ensure that the relay lever springs have some follow. That is when the contacts make there is a little bit of additional lever spring travel that provides a self cleaning action.
I used an inexpensive trailer I obtained from the guy that used to supply trailers to K-Mart. It came as just a frame kit, no box. I picked up a couple pieces of UniStrut from Home Depot, bolted two
Manuals and the capacitor are available from MFJ. The manuals can be downloaded from their web site. And you can buy the capacitors from them a lot cheaper than from your local motor repair shop. de