To All from PA0SE, An interesting computer program for simulating antennas can be found at: www.qsl.net/wb6tpu/swindex.html. Search for "4nec.2" and download the two files concerned. What size are t
On Friday 29 November 2002 11:13, you wrote: Sorry if this is somewhat off topic, but I am looking for the design equations for spiral inductors printed on PCB material, with or without a groundplane
On Thursday 28 November 2002 13:16, Andy talbot wrote: There is an awful lot of controversy over the G3LHZ theories on loops...................... I found the following set of course notes very infor
I have made some progress on Spiral Top Load antenna, 310 cms corner to corner, 16 turns at 8 cms spacing (didn't want to go too tight). This produced 0.432 mH with (81 mtrs of wire) single spiral &
On Wednesday 13 November 2002 14:32, you wrote: I didn't get anything like that, but the negative voltage generator has a pronounced threshold as the device starts to avalanche. I wonder if you are g
As far as I know, he's not licenced. I inferred from someone else's post that it was there to be found - Bob's column was where I first saw the question posed. If you do a search on 'Bob Pease' one o
Fine! I personally don't mind as I find them interesting - the question is do the majority of the reflector users mind the scope of the reflector to broaden to include such technical intrigues? I mu
On Monday 11 November 2002 08:46, you wrote: You have a small box whose internal workings you can't see, but the box has two terminals. You measure these two terminals with a voltmeter, and it measur
It's easier to imagine work done in hauling out a thin piece of plastic from between two charged plates rather than sucking out some liquid - does the liquid oil stick between the plates like a stro
This simple puzzle caused more discussion in my office this morning than it had any right to. Have a ponder while waiting for next QRSS symbol to come through. Andy G4JNT -- From Circuit Cellar maga
By active participation I trust you allow for those who write software for the so called and decried 'automatic' modes. All those individuals who designed the packet system, Pactor and closer to hom
Finally got round to reading it, I imagine some professionals found it very interesting - t's a testimony to the inventiveness and productivity of enthusiasts. I was interested to see that I'm not th
I'm thinking of running a top loading wire parallel to (many) telephone wires, about 1m from them over a distance of about 20-25m. Does anyone have experience of any effects iin either direction? Tha
I again appeal to everyone on this list for help in unsubscribing from it! This is my 5th request, so far they have gone without answer. Unfortunately, if I do not receive instructions on how to rem
Then why did my 1-watt signal go 1302 miles the other week? I was sending QRSS-30 and the receive station was southwest from here. My loop points north and south. It usually goes out past 500 miles
On Tuesday 24 December 2002 12:44, hamilton mal wrote: -- Original Message -- From: "Steve Thompson" <[email protected]> To: <[email protected]> Sent: Tuesday, December 24, 2002 7:30 AM Su
With all the loop talk that has been going on since before time began has anyone found a design for a near perfect small loop, suppose its like how long is a piece of string, obviously the bigger the
