Like Marlon, I have also given up on heat shrink with or without the internal "glue" for sealing connectors. The weather seal is not robust enough to survive hot summer/cold winter temperature cycles
GAC3455 anchor definitely has a five hole plate welded to the end of the anchor rod. The three hole version was discontinued several years ago as the five hole version works fine by using hole #1, 3,
A technique to disable the AGC that works with many receivers is to advance the AF gain to maximum and reduce the RF Gain untill the S-Meter rises to S9 or more. You can acheive a linear dynamic rang
What makes sense here is to use Yasu's method of K factor with Yaesu rotors and use the Hygain method with Hygain rotors. We don't have enough knowledge of the manufacturer's safety margins to guess
Regarding Bill's non-vertical stacking question: In the directions that the antenas deliver in phase signals to the combining device, the stacking gain should be there and normal. In the directions t
In Bill's case he mentioned using 6m yagis with spacings of 40ft or so. There would be very little, if any mutual effects at spacings this wide. For example, 39ft long 6m yagis stack at 28 ft spacing
Max stacking gain for dipoles is 5/8 wavelength. Max stacking gain for yagis varies with boom length. For the 6m7JHV with a 30ft 8in boom length, stacking distance will be in the 25 to 26ft range. As
The sand packed base also allows one to make small plumbing adjustments in case the mounting arrangement is not exactly vertical. I built one of these masts back in the early 70's when very inexpensi
I am pleased to report that at long last the Rohn/Radian order has been delivered to Texas Towers. Model 25G was delivered last month and 45G and 55G was delivered today. The galvanizing quality is e
If you connect 12" of RG213/u to a 20 ohm j0 load, the result is 20 ohms +j.7, which is a negligble change. The practical effect is to lower the frequency of the system a few kHz. Since a 12" length
10% power difference is .414 db. 1 db difference is 25.9% power. 73/k5gw _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
For many years Rohn has supplied Grade 5 electroplated bolts with 25G sections. These bolts are in no way special or different from what you can purchase at a good hardware supplier. In fact, last ye
It is a slow day here! Top o.d.=4.25" , bottom o.d.=7.063" and height of rotating part =1.688". These units are in stock if needed (as well as TB3 thrust bearings). 73, Gerald Williamson/K5GW Texas T
Wow! 60,000 X 4 sounds pretty stout! Why don't you try it out and let us all know how it went? 73/K5GW _______________________________________________ See: http://www.mscomputer.com for "Self Support
As an aluminum supplier, Texas Towers recommends the following procedure in case of stuck aluminum: Your aluminum options are shown at _www.texastowers.com_ (http://www.texastowers.com) . Tnx/73, Ger
Re: metric vs inch aluminum sizes Hi Bob, this is my favorite situation. In this case, one purchases a completely new batch of aluminum for all elements as well as the boom. For sake of safety issues
Those long skinny leads from the BN86 to the feedpoint form a high impedance transmission line. It is fairly short in electrical degrees but will run the impedance around the Smith Chart circle a sur
Hi Gary, we have a few of the hinged bases left if you are interested. Please call 1 800 272 3467 tomorrow for info. Tnx/73, Gerald K5GW/Texas Towers _______________________________________________ S
I have been away for a few days but noticed a few subject lines covering the TH7-DX balun, the BN-86. I have a TH7-DX that will be going up in near future, what is the best balun to use for it? I kno
The original OR2800 had an ac motor and direction sending potentiometer. 73, Gerald, K5GW/Texas Towers In a message dated 3/4/2005 2:45:48 P.M. Central Standard Time, richard@karlquist.com writes: I