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#1
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On the SteppIR webpage, one of the photos is a SteppIR dipole mounted
flush with the roof to provide stealth operations. I wonder whether this arrangement is worth it? Is this too high tech / high cost for low return on investment? Thanks in advance John AB8O |
#2
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On 7 Feb, 17:39, jawod wrote:
On the SteppIR webpage, one of the photos is a SteppIR dipole mounted flush with the roof to provide stealth operations. I wonder whether this arrangement is worth it? Is this too high tech / high cost for low return on investment? Thanks in advance John AB8O Why would anybody go to all that expense of getting certain desirables from his antenna and then throw them all away by placing thr antenna so close to the house wiring and structure. He might just as well load his gutters to obtain stealth operation. I imagine that would be a lot less money spent and he loses nothing when he moves house! Art |
#3
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While visiting a mountain town in Arizona, a wonderful place with a
terrible legal attitude toward antennas of any sort, I passed a house in an upscale area. All the houses were 2 or 2.5 stories. On the roof of one facing away from the road, I noticed a StepIR dipole installed much as the one is shown on their web site, though closer to the ridge. The picture shows a ridge vent, which if aluminum would require the indicated separation. I noticed a few of their verticals in use as well in the area, most "clearly" disguised as flag poles. I had a chance to talk with the OM, and he said that while they certainly worked, verticals, inverted Ls, etc, were not easy to install in that environment due to the very poor soil and limited yard space to implement a good rf ground system. The result was relatively poor coverage, and RF in places you didn't want it. By contrast, a resonant dipole has far less extreme issues. He mentioned knowing of one ham who actually installed the dipole inside the attic, along the ridge line. While the lengths required a bit of tweaking, easy with the controller, he seemed very satisfied with the results. It seems a bit brute force, but sometimes the most effective labor saving device is the proper application of money. N1GPK, the ham whose picture appears on the StepIR site, has a few comments in the testimonial section. I did not find his e-mail on QRZ.COM, but no doubt you can contact him from the other info. -- Alan WA4SCA |
#4
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On Feb 7, 7:39 pm, jawod wrote:
On the SteppIR webpage, one of the photos is a SteppIR dipole mounted flush with the roof to provide stealth operations. I wonder whether this arrangement is worth it? Is this too high tech / high cost for low return on investment? Well... I've been struggling with getting HF antennas up in my CCNR challenged neighborhood. Given that one of the board members of the HOA can see my back yard directly and there are zero mature trees around here, I've had a lot of difficulty putting up any kind of antenna (without getting a letter from the HOA.) My current set up uses a coax trap dipole folded up in my attic, and it is horridly noisy on receive and nobody can hear me. (Being a single story house with all the electric in the attic pretty much tears it for me.) I can see where such a set up with a stepper IR dipole might be about all you can do in some situations. It gives you good resonance on multiple bands and doesn't have much of a need for a ground. It may not be very efficient and it may be expensive but it seems like a valid option to me. It won't be as good as it *could* be if you could mount it on a tower at the right height, but it might be all you can do in his situation. It also seems that it would be better than loading up the gutters on 75 Meters... -= bob =- |
#5
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On 8 Feb, 14:41, "KC4UAI" wrote:
On Feb 7, 7:39 pm, jawod wrote: On the SteppIR webpage, one of the photos is a SteppIR dipole mounted flush with the roof to provide stealth operations. I wonder whether this arrangement is worth it? Is this too high tech / high cost for low return on investment? Well... I've been struggling with getting HF antennas up in my CCNR challenged neighborhood. Given that one of the board members of the HOA can see my back yard directly and there are zero mature trees around here, I've had a lot of difficulty putting up any kind of antenna (without getting a letter from the HOA.) My current set up uses a coax trap dipole folded up in my attic, and it is horridly noisy on receive and nobody can hear me. (Being a single story house with all the electric in the attic pretty much tears it for me.) I can see where such a set up with a stepper IR dipole might be about all you can do in some situations. It gives you good resonance on multiple bands and doesn't have much of a need for a ground. It may not be very efficient and it may be expensive but it seems like a valid option to me. It won't be as good as it *could* be if you could mount it on a tower at the right height, but it might be all you can do in his situation. It also seems that it would be better than loading up the gutters on 75 Meters... -= bob =- I'm sorry. I was unaware that the StepperIR had upgraded its multiband antenna to include 75 metres So all is still not known about antennas ! Art |
#6
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On Feb 8, 7:52 pm, "art" wrote:
I'm sorry. I was unaware that the StepperIR had upgraded its multiband antenna to include 75 metres So all is still not known about antennas ! Hmmm... My bad, they do 20 Meters max according to the website (40 on their vertical model) ...I was thinking about the screwdriver antennas (High Sierra I think), not the StepperIR when writing my reply. But still, it's hard to judge another man's antenna selections by their looks every time and be right. (although mine pretty much perform like they look.) Anybody tried the MFJ rotatable dipoles? I might be able to hide one of those behind the house... ![]() -= Bob =- |
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