Ed, I just drilled a hole and put a push button on top of the control box and wired it to control the brake solenoid of the Ham-M. Rotation is still done with the lever switch, holding the brake cont
I never solder the shield to the connector. I just cut the outer jacket off and screw the connector on to the shield and solder the center conductor. Been doing it for 30 years and have not had a pro
Well, I did say that I do not solder the shield. And I use the connectors both indoors and outdoors, both on HF and VHF at high power. Of course there would be problems if the CENTER conductor is not
Stagnation of a reflector is when people are flamed because they ask a question about a topic that has been discussed before. I was looking forward to some discussions about Kevins antenna plans but
My good friend Doug, VK3UM uses a ring gear from a Centurion tank at the base of his tower supporting a 30' dish. The gear is 7' in diameter and rotates very smoothly with the original 28VDC motor/ge
Just to clarify, using a rule of thumb for stacking VHF/UHF antennas today is obsolete. Careful modelling must be done and just as Tom points out, you have to decide what you want to achieve. Some st
As people already pointed out, mounting the antenna on an insulated mast will make no difference unless the coax is run out the back of the antenna in some way. I have a moonbounce array for 2 mtrs c
A couple of questions for the group; What is better when building a 2 el yagi for 40 with shortened elements, driven + director or driven + reflector ? Linear loading is easy to accomplish, but does
Hi! I would like to build the stackmatch myself, anyone out there that can tell me where I can find a description of the toroid transformer ? 73/Peter SM2CEW List Sponsor: ChampionRadio.com - Trylon
they obvious And only in America (FOX News?) the truth was being told... geeezzz..... What has this got to do with antennas and towers ?? Throw your mud elsewhere please. /Peter SM2CEW ______________
A friend of mine told me that the MFJ259B can easily go out of calibration if it is banged around or not handled carefully. Anyone with experience of this, and what type of error is likely to occur u
I have done away with N-connectors in my VHF EME array as they are failing during cold winter days. The problem is that at low temperatures (I live at 65.4N...) the center conductor of the coax gets
Instead of the 3.5MW diesel one could use one of these and 'The Rod of God' whip for interesting results... especially a 'one pill BIG one' would produce some nice 'dead key' signals. http://www.dave
What a shock to learn that Jim K4OJ is no longer with us. One weekend we hear him on the band, the next one he is gone. I always enjoyed reading his postings on this reflector, full of spirit and cer
Check out my radial plow, does the job nice and easy. www.qsl.net/sm2cew/plow.htm Yes, I am also lazy.... :-)) 73/SM2CEW Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any que
Just curious, how is the matching done on the SteppIR so that it presents 1:1 SWR over the whole range. I understand the fundamental properties to set the length of the elements with stepper motors,
US hams absolutely love to debate bad company service and virus protection on all reflectors, regardless of their initial purpose. The threads just go on and on and on.. Getting fairly fed up with th
Steve, what sort of difference did you see in db F/B? Was it 2-3 db or was it more? 73/Peter SM2CEW Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sh
Together with Jim, SM2EKM I have recently done some testing of f/b on my stack of TH7DX's. The f/b on the single TH7DX tribander over a wide frequency range is essentially the same. The difference ov
The thing that I was trying to convey with the measurements we made was that the TH7DX tribanders are not critical in f/b vs frequency in contrast to what someone suggested. What the precise f/b numb