I'm using a US Tower TX-472 MDP that has developed a small problem and I'm wondering if anyone here can help before I call US Tower. Sometime this summer, the worm gear drive reducer that is coupled
Pete, For 10-20 meters, including the WARC bands, have you considered the Force 12 Model 5BA? That's what I'm using. It's the D model, rated for 100 MPH. I have it mounted on a US Tower 72' retracta
Natan told me 10 foot spacing would be fine. I never asked which would be the topmost antenna but like you, I assume it would be the 230/240. You would definitely need a chromalloy mast though! -- 73
I'm feeding a half-sloper at the top of my TX-472 for 30,40,80 & 160 meters. Works fine with a tuner with the coax running outside the tower in the normal US Tower standoffs. -- 73, de KJØM J
Fred, I have a TX-472MDP which I put up this spring. I purchased it used and it was about 2 years old. I had the same problem. There was a spot about 2/3 up at which the tower would stick and bind. I
I just installed a used TX-472 MDP and had trouble with the tower actually binding in some spots, due to the old grease that was on it, and stopping the motor drive. The old lubricant was like tar. I
I have a question regarding the installation of a couple of antennas on a US Tower TX-472 crank-up, tilt-over tower. The question involves lateral loads on the mast when the tower is tilted over. The
On May 26, 2004, at 3:13 PM, Pete Smith wrote: I may be all wet, but the chrome moly mast seems likely to me to weigh a lot more than the total of those two antennas. A conservative calculation would
On May 26, 2004, at 10:13 PM, Dave Hachadorian, K6LL wrote: In Statics, this is a "sum of the moments" problem. The clockwise overturning moments about the thrust bearing must equal the counterclockw
On Jul 3, 2004, Rick Kourey (K4KL), <rkourey@carolina.rr.com> wrote: Does anyone have experience using the Force-12 5BA antenna and can state how it performs. I would also like to know how easy it wa
raising fixture will lift the tower from horizontal to verticle with a 21 ft chromolly mast (2 in., 140 lbs), a TH7, and a XM240 installed without the tower crashing back to mother earth? I just fin
On Sep 30, 2004, at 5:26 PM, towertalk-request@contesting.com wrote: --Original Message-- From: Al Williams [mailto:alwilliams@olywa.net] Sent: Thursday, September 30, 2004 12:18 PM To: Bill Turini;
Alan C. Zack wrote: Could anyone suggest a book, manual, or web site that shows how to loop coax and rotor control lines on crank ups? The tower came with coax stand offs at each tower section for th
On Sep 25, 2004, at 8:57 PM, Tower (K8RI) wrote: Any one have experience with "half slopers"? (half of a half wave with the tower serving as the other side) I worked all 40 Zones on 40 and 80 meters
On Feb 2, 2005, at 8:01 PM, towertalk-request@contesting.com wrote: Hello, I am looking for a replacement for my HyGain T2X. The T2X is on a 70 foot Glenn Martin tower with the Voyager tram system. T
On Mar 19, 2005, at 6:10 PM, "Doug Grant" <k1dg@ix.netcom.com> LOL! Ain't it the truth! 73, Jim KJ0M ._._. _______________________________________________ See: http://www.mscomputer.com for "Self Sup
I'm using a 240/230 stacked above a 5BA. The 240/230 is ~85'. It's been up since this past September, so there's not much experience yet, although I can say that the antenna works very well on both b
I have a Force 12-240/230 (24 foot boom) and a Force 12-5BA mounted on a TX-472 tower. The 5BA, with a 33 foot boom is mounted right above the thrust bearing and the 240/230 is mounted about 15 feet
I've got a Yaesu G-2800DXA turning a Force 12 5BA (33 foot boom) and a Force 12 240/230 (24 foot boom). I've not had any problems in 3 years and have seen 70 mph winds on occasion. 73, Jim KJ0M ._._.