Does anyone have handy the inductance value for the loading coils on the CC XM240? Gedas W8BYA http://gedas.cc http://www.w8bya.com _______________________________________________ Antennaware mailing
Hi Joe, thank you kindly. 73 Gedas http://gedas.cc http://www.w8bya.com _______________________________________________ Antennaware mailing list Antennaware@contesting.com http://lists.contesting.com
Hello group. I am trying to model a M2 2M9 for a friend for his rover use. I have an EZNEC model (not sure where I got it from) for the M2 2M12. By looking at the PDF manual for the 2M12 and comparin
Hi Charlie, thanks for that information. Funny you should mention, someplace I still have all my old 5-1/4" YO, and MN, and WO etc diskettes. Since the time I posted my questions I have been looking
I was wondering if I could get some help developing then modeling a short dipole for 630m use. I consider myself to have intermediate modeling skills and have modeled a lot of antennas in EZNEC etc.
Hello Guy. You have given me a tremendous amount of excellent information which is awesome. Thank you so much. I will try to build a model in my EZNEC 5.0 (standard NEC-2 engine version) and then sub
Thanks Mike. Yes I agree 100%. Could not agree more. You and I know what the results will be. But this is an experiment I want to perform in the name of science and for my personal satisfaction (I lo
Hello Guy. ok I have taken my 1st stab at creating my model based on your suggestions. I have picked ground constants that represent very very poor "city" soil, a value of 5 or and .001. Enclosed is
Hi Guy. ok now that I have an initial model built correctly I can proceed with my experimentation. You had asked "The next question, what are you trying to accomplish with this? You wanting to put th
Hi Terry. First of all thank you very much for taking the time to help out and for chiming in. It is interesting because what you have is what I wanted to do but did not know how. I wanted to be able
I have a quick question regarding loading inductor winding sense for an antenna like a center loaded dipole. I am about ready to wind my loading coils on the same 26" long, 4.5" dia PVC form. I plan
Thanks Jim.....that's what I decided to do rather then actually measure the h-field coupling. Here are the finished inductors ready to be hoisted up on the tower. https://drive.google.com/open?id=1J1
Wondering if someone can confirm that by setting my model to zero wire losses, use a perfect ground, and eliminating any & all loads that the resistive portion of the displayed source impedance shoul
Hi Dave. Thank you for that confirmation. Gedas, W8BYA Gallery at http://w8bya.com Light travels faster than sound.... This is why some people appear bright until you hear them speak. you are correct
Right. I.e., in my case since we are talking about a short 600' inv-v antenna on 630m at 85' I get a calculated value for R(rad) of about 0.66 ohms. If I raise this perfect antenna model to approx 1/
Hi Terry and thanks for your input. I realized I would have some additional complications & uncertainties if I were to go by measurements from the shack alone as I have already permanently installed
I wanted to thank everyone who has chipped in with helpful suggestions and advice with the modeling of this 630m short inv-v antenna. I have finished the modeling aspects, built up the prototype, ins
Pse clarify exactly what you want and I will generate two models and provide you with some impedance data using EZNEC. 1) How long of a dipole element for 160m and how high off the ground is the bott
Hi Karin. I am no expert but I will try to help out any way I can. I did some modeling and then constructed a pair for HF and they really worked well. I documented the setup in one of the ARRL Antenn