Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
Brilliant! Why didn't I think aboutit?
Can you picture stupid hams paying crazy money for bunch of fiberglass fishing poles, some metal tape and stepping motors with controller that could be replaced by the strings. I was going to put up 6 stepIR, now I will save hugh money. Where do I send the money? bada BUm "art" wrote in message ups.com... Before I started on my present project I looked at the IR antenna allband Wow I couldnt believe the price and why are hams not building it themselves. You know you could buy telescopic fishing poles and stick aluminum foil along its outside length and at particular points take off some foil and push some finger stock into the inner of the pole It is then an easy job to switch these gaps closed or open depending on the band you are using. If you are not using high power just a simple tubular solenoid inside the pole will do the trick though if you are using power I would widen the gap by having a central dowel rod placed inside the pole with a aluminum tube covering at the ideal points where they can rub the finger stock to close the gap. Pushing the dowel rod is quite easy,, just take the belt and step motor off a printing machine and fix the dowel on both sides of the element to the belt and bingo you have a cheapy all band antenna for just over a $100 Buy the telescopic fishing poles on EBay and get the aluminum foil from your kitchen or buy the adhesive foil from your hardware store. ,By the way send all your money savings to me !, have fun Cheers Art |
#2
![]() |
|||
|
|||
![]()
I always looked at the SteppIR's and thought they were pretty much
exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
#3
![]() |
|||
|
|||
![]()
Don't really need a control box, apply the frequency as you turn the
motor and stop when the SWR meter takes a dive. YThink positive wrote: I always looked at the SteppIR's and thought they were pretty much exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
#4
![]() |
|||
|
|||
![]()
I've done something similar but simpler.
I took two 20' Bream poles & mounted them on a 1"x 2"x 8' with clamps. I left a 4' gap between the ends of the poles. Total extended length = 44'. I then strung #16 wire along the outside of the entire length, feed it with ladder line thru a tuner & mounted it on a 30' tower. Walla, a rotatable dipole for 40 meters thru 6 meters (75 meters is a push but it loads). It has gain & directivity on 20 - 6. Total cost - less then $40 Terry W8EJO |
#5
![]() |
|||
|
|||
![]()
Art displays his "out of the box genius" again.
Describing his "cheap" version of StepIR antenna is like comparing wheelbarrow to Mack truck. Sure is cheaper and "simpler" and you can transport one brick with both, but when it comes to loading serious load, the difference is obvious even to bl?*&% idiot. :-) Can you get that or is too complicated that it would need explanation with polarized bubbles? bada BUm "art" wrote in message oups.com... Don't really need a control box, apply the frequency as you turn the motor and stop when the SWR meter takes a dive. YThink positive wrote: I always looked at the SteppIR's and thought they were pretty much exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
#6
![]() |
|||
|
|||
![]()
Why are you being so abusive?
Yuri Blanarovich wrote: Art displays his "out of the box genius" again. Describing his "cheap" version of StepIR antenna is like comparing wheelbarrow to Mack truck. Sure is cheaper and "simpler" and you can transport one brick with both, but when it comes to loading serious load, the difference is obvious even to bl?*&% idiot. :-) Can you get that or is too complicated that it would need explanation with polarized bubbles? bada BUm "art" wrote in message oups.com... Don't really need a control box, apply the frequency as you turn the motor and stop when the SWR meter takes a dive. YThink positive wrote: I always looked at the SteppIR's and thought they were pretty much exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
#7
![]() |
|||
|
|||
![]()
art" wrote in message
ps.com... Why are you being so abusive? Steppir Fanboy They consider everyone who doesn't pay the exorbitant prices of the steppirs NON-HAMS. |
#8
![]() |
|||
|
|||
![]()
Just pointing out your way of thinking "out of the box" on practical example
that anyone can relate to. Like we are so stooopid to pay bucks for antenna when we can slap it from aluminum foil, like we are so stooopid for 100 years of antenna development that you have to enlighten us with your what? Like your patent, awgh, never mind.... 73 Yuri, K3BU xOK "art" wrote in message ps.com... Why are you being so abusive? Yuri Blanarovich wrote: Art displays his "out of the box genius" again. Describing his "cheap" version of StepIR antenna is like comparing wheelbarrow to Mack truck. Sure is cheaper and "simpler" and you can transport one brick with both, but when it comes to loading serious load, the difference is obvious even to bl?*&% idiot. :-) Can you get that or is too complicated that it would need explanation with polarized bubbles? bada BUm "art" wrote in message oups.com... Don't really need a control box, apply the frequency as you turn the motor and stop when the SWR meter takes a dive. YThink positive wrote: I always looked at the SteppIR's and thought they were pretty much exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
#9
![]() |
|||
|
|||
![]()
Be careful Yuri or you will start to blither too.|
![]() "Yuri Blanarovich" wrote in message ... Just pointing out your way of thinking "out of the box" on practical example that anyone can relate to. Like we are so stooopid to pay bucks for antenna when we can slap it from aluminum foil, like we are so stooopid for 100 years of antenna development that you have to enlighten us with your what? Like your patent, awgh, never mind.... 73 Yuri, K3BU xOK "art" wrote in message ps.com... Why are you being so abusive? Yuri Blanarovich wrote: Art displays his "out of the box genius" again. Describing his "cheap" version of StepIR antenna is like comparing wheelbarrow to Mack truck. Sure is cheaper and "simpler" and you can transport one brick with both, but when it comes to loading serious load, the difference is obvious even to bl?*&% idiot. :-) Can you get that or is too complicated that it would need explanation with polarized bubbles? bada BUm "art" wrote in message oups.com... Don't really need a control box, apply the frequency as you turn the motor and stop when the SWR meter takes a dive. YThink positive wrote: I always looked at the SteppIR's and thought they were pretty much exactly worth the money. By the time you worked up your own SteppIR-like control system and actually got the sliding contacts to work in a low loss, reliable fashion, you'd easily be up to the price of those antennas. Dan |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|