To feed 10 turns of wire through the pipe, couldn't you pass a first wire through the loop, and then tie it into a circle with a knot. Then tie the end of the...
Or use multicore wire, feed it once, and join it nicely on turn against the next, if you follow my drift. So 10 way ribbon easily yields a 10 turn coil with...
Hi all: If you're talking about one or two passes around the loop, not a problem. On the other hand, if there are many turns to be forced through the loop,...
You could use an outlet hose for a washing machine or dishwasher with a junction box both found at B&Q. ... Only problem is how to feed through many loops into...
Hi Rob: If I may butt in here for a second, I'll tackle that one, maybe. You can make your HulaHoop from sprinkler system hose the semi rigid type that is 3/4"...
... You can find the boxes in what we call here "brico" shops (do it yourself), or electronic shops. I go to bricodepot.fr leroymerlin.fr gamma.be etc (I...
Hi Marc, I'm also planning a loop oriject and was curious about the box, fittings and plastic loop that you used. It's a nice rugged looking enclosure. Can...
Hello There. I've built a simple loop to sort out the rubbish reception and high pitched squeal on Medium Wave. But I may have connected it up incorrectly. I...
I have a large loop: The loop is 2 x 3 meter of PVC tube, bended in a circle. There are now 3 turns. Guess ... how many turns to have the LW 153-279khz ??? ...
tnx Bob, after surveying the fd site, I could put up a 160 loop with an average ht between 40 and 60 ft high. Tall trees...73, Alan ... -- -- /Currently in...
For field day, you might try an "earring" magloop with the capacitor on the bottom. DESCRIPTION For 75 meters, a 100pf 15 kv vacuum variable, a 50'long piece...
... Ouch! That's not an easy one. You could use a vector network analyzer (VNA). If you have an apprixomation of the line impedance, you can treat it as a...
... Thanks. ... Perhaps you can. I can't. I have the formula to model the impedance of the pair of round conductors with an approximation of the effective ...
I'll send you a copy of the article later. In the meantime, you can model the bifilar transmission line as a section of parallel-wire transmission line with...
... As I understand it, I think this gives a lot of predictive power for the low end of the operating range, but not the upper end. ... Mine are all Steward...
... I think I understand how to use the measurements of inductance and capacitance to make a model of an ordinary transformer, but I don't know how to include...
John, Your transformer can be modeled as a wideband transformer to determine the high and low frequency characteristics. I wrote an article for Applied...
Hi, I think the type of ferrite material of your cores, along with the inductance of a single winding will provide the most information. I don't know if the...
I am winding some experimental transmission line (bifilar wound) transformers to be used to convert a balanced antenna preamp output to single ended. I have...
To me it means what you said here: "we should delete all excessive words and sentences from the text, that others have written" Like I have done in this...
Hi! I am not used to use the English language perfectly. So, what does it mean to TRIM these messages? Does it mean, that if we are going to answer ( reply ),...
Len, There is an excellent chance that I will comply in future posts. I hadn't seen the request at the bottom of the page, if I had, I would have trimmed it...
I have used loops like you describe in several houses as well as FD sites. The big trick I have found is get is as high as possible and use ladder line. Last...
Hi Alan, The antenna you describe is a fine antenna. Especially for multiband operations. With a truly balanced antenna tuner, feed line losses will be...
Hello, I'm new to the group, but been a ham for over 25 yrs. This year I want to put up more than just a standard old dipole for field day. I'm thinking maybe...
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May 2, 2006 4:50 am
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Radiowave Propagation Yahoo eGroup: http://groups.yahoo.com/group/radiowavepropagation This eGroup will be the home of my radiowave propagation outlooks, a...
