Hi All, I'm new to the group. I wish to get your opinion on a few ideas that I have. - From an electrical point-of-view would it be better to have a 40m yagi above or below a tri-bander on the same
Hi All, I have a D240 and I haven't used it much since I put it up this past spring. Tonight I decided to run some performance tests. I found a DX station and I turned the attenuator on such that t
Hi Pete, Thank you for the reply. The elements were pre-drilled so I assembled the antenna per the factory setting. The assembled antenna had its resonant frequency at 7.030mhz which is what the fa
Hi Steve, I don't get to see sunrises very often as I'm not a morning person, hihi. My test was with Puerto Rico which is not exactly long haul DX. I have worked many long-haul DX stations with the
Hi John, Thank you for the reply. I haven't been able to confirm whether the beam has a 20db F/B at the resonant frequency. If that is really true I would consider moving the resonant frequency to
Hi All, Thank you all for the replies. I went to my antenna bible 'Array of Light' by N6BT and there are two chapters (35 and 36) that made references on antenna tuning of shortened yagis such as the
Hi All, I'm looking for someone who has guyed the bottom section of a TX-472. I need a guy bracket and the Rohn standard bracket wouldn't fit. I want to hear from those who has guyed the same or si
Hi All, Does anyone know how to install an inverted V antenna for 80m on a retractable tower? Is there anything that could be done to prevent the wires from laying on the ground when the tower is re
Hi Larry, Thanks for the reply. I get a lot of wind here and I'm afraid that the counterweight would swing in the wind and cause stress on the rope/wire. I wonder if there's a device that would ret
Thank you all for the replies. If I could just find a conductive bungee cord.... Wait, this stuff actually existhttp://www.electricfence-online.co.uk/shop/electric-fencing/electric-fencing-wire-tap
Hi Steve, I need to guy the tower because I've exceeded the tower's design limit by a factor of 3.7. If my two yagis were both mounted one foot above the thrust bearing I'll be below the limit. How
I'm quite happy with mine along with the Orion 2800. The only thing you need to watch for is the pulse divider setting for the 2800. It's either 3960 or 4015. Mine came programmed to 4015 and it w
Hi Steve, et al, FYI. I e-mailed UST today and I got a blessing from one of their engineer to guy the bottom section with a guy tension of 400lbs. He also said no special hardware is needed. I cou
Hi All, I've discovered that my less than a year old TX-472 tower has three places where the steel cable is rubbing against the tower. Attached below is a link to some photos of the problem. In one
Hi All, Thank you for the replies. Some of you replied to me in private. Unless I'm told otherwise I plan to bend the Z bracing a bit to eliminate the interference. I'm not sure yet on how to do t
Hi Alan, Thank you for the reply. I wish companies such as US Tower could invest in better QA. Stuff like this shouldn't happen in the field. Once the product is in the field it gets very time-con
Hi All, Thank you the replies. I also received many replies in private. Many of you suggested of bending the bracing with a crow bar or hitting it with a piece of wood. Well, I tried both methods
Hi All, Thank you for the replies. Just an update. US Towers contacted me today and told me they will look into this. We didn't discuss any methods on a remedy. I will wait for their response bef
Hi All, Just an update. US Tower has hired a local tower installer to come over to my QTH. He will make an inspection and make any necessary adjustments. I'm very grateful and glad that US Tower i
Hi Jorge, It's easier to stick to a 2" OD. I went with 2" OD but with a 3/8" wall 4130 chromoly. The cost difference between 1/4" and 3/8" is not significant. I want to make sure the mast outlasts