Good morning, I am looking for a used Pro.Sis.Tel "Big Boy" series rotator in good physical and operational condition. I need the model PST-51 or PST-61. I prefer the 51. These models are the earlier
Gee...turn it over and put the truss on the bottom. If it is wire, change it to aluminum tubing like the HyGain 40-2CD. I have had a pair of those up for close to 20 years and they have done very wel
I am looking for another motor/gearbox unit for the Pro.Sys.Tel PST-51 rotator. This would be the AC model. It is for K8TQK. I would prefer just the motor/gearbox unit, but would consider a control b
Good morning, I have two six element, 46 foot boom, 20 meter Telrex yagis. One of them I bought in 1979 and the other in 1993. One is in the air and the other is in my barn. I have had excellent resu
Hello to the group, I just discovered that the program I use to model antennas is defunct. It is/was Antenna Model. What are the programs that are being used successfully by this group? Dave, K$TO __
My Orion mast clamp has never slipped. It has 4 x 33 ele 432, 4 x 12 ele 144, 2 x 16 ele 222 5 el 6M, 33 el looper 902, 67 el 1296. Of course I am using a 3 inch mast :-) Dave, K4TO _________________
I have 7 sections of Rohn 55G available. I just took them down from my 200 foot rotating tower. I also have 1 (one) complete guy ring assembly from Rotating Tower Systems (RTS). All are in good, usea
For the past 10-15 years I have had a four square array on 80 M. I use the Comtek phasing system. My array consist of four, full sized, dipoles strung around my 160 meter vertical. The insulated feed
If you can get a hacksaw blade and a single style handle, insert and saw through the inside (not too deep) then break it out a piece at a time. It is slow and tedious, but I have done it. Dave, K4TO
The he article I recall was about the FAA. They did an extensive test, comparing many of their sites that used this device to many of their sites that did not use it. The results were that there was
Good evening Bill, I have an array of 4, vertically oriented, dipoles controlled by the Old Comtek control. The new Comtek control evidently does not work with dipoles, only verticals. Nevertheless I
OH DEAR. Now you have me thinking. What bad things do you have to say about the digital levels available in the big box stores? I am using one to check the plumb of a Rohn 55 tower I am putting up. I
I wish I had the expertise with computer analysis that is being displayed during this discussion. If anyone would like to do some analysis on my location, I would love it. For 28 years, until last Fa
I have spent a fair amount of time reading a few of the Moxon construction articles about the modified Moxon for 40 meters. I have a spare 6 element 20 meter Telrex monobander for 20 meters in my bar
I found my original CD. Evidently it is very old. The label says it will run on Windows95 through XP. I doubt that it will run on Widows 7/64bit. Does anyone know if it will or not? Dave, K4TO ______
GM John nope -- AM for Antenna Model, an older program written by a now SK. Dan I did read that paper slowly and with great interest. I did email Greg, but didnt realize the .ez files could be read b
Hi Tim, thanks for checking in. I will be calling your guys to inquire about the Yagi Mechanical program soon. I dont know if you have been following my ramblings, but I have plans to make two Moxon
And dont forget, Part 97 says (in one of the most straightforward, easy to understand, and beautiful) federal regulations that amateurs are allowed to put up a 200 foot tower without lighting! Arrl h
Please post your photos and ideas received on a website. I have had a 200 foot rotating tower for 28 years and never felt that my cable loops were as sexy as the the tower. I am now putting it back u
If you have a buddy that is a car guy who has a shop, a standard press is usually part those things. I have used my buddys press to change gears and rework gearboxes for rotators, etc. It is really s