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W0RW @ Ice Station Zebra, 28 Aug. 20, 1630z, 14061 kHz.
Thanks, Paul, for Ice Station Zebra QSO. Heard you in St. Louis, just barely at 5-1-9. Dave W0DCX Chesterfield, MO
Thanks, Paul, for Ice Station Zebra QSO. Heard you in St. Louis, just barely at 5-1-9. Dave W0DCX Chesterfield, MO
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Dave W0DCX
· #22688
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Random Wire Tuning - Take 2
After reviewing the previous thread on this topic, I felt somewhat uneasy about my contribution to the discussion. I felt as if my reporting became somewhat desultory. So, I have done some more analys
After reviewing the previous thread on this topic, I felt somewhat uneasy about my contribution to the discussion. I felt as if my reporting became somewhat desultory. So, I have done some more analys
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Dave W0DCX
· #22344
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The mysteries of tuning a random wire
Mike, Okay from me. I only wish I could have arrived at a definitive answer to my original question. Even so, I learned a lot from the discussion and maybe others will also. I plan to continue trying
Mike, Okay from me. I only wish I could have arrived at a definitive answer to my original question. Even so, I learned a lot from the discussion and maybe others will also. I plan to continue trying
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Dave W0DCX
· #22328
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The mysteries of tuning a random wire
I want to thank everyone for their helpful and educational input. I am going to study the resources provided and do some further experimentation with various random wire configurations. . If I discove
I want to thank everyone for their helpful and educational input. I am going to study the resources provided and do some further experimentation with various random wire configurations. . If I discove
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Dave W0DCX
· #22293
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The mysteries of tuning a random wire
Sorry, some formatting inconsistencies in the table previously posted. Here is the corrected version.
Sorry, some formatting inconsistencies in the table previously posted. Here is the corrected version.
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Dave W0DCX
· #22276
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The mysteries of tuning a random wire
Taking the next step I took N5IB's advice and took the impedance calculations to completion. I'm not sure if the VNA will do this for me, but for now I constructed an Excel spreadsheet where I can jus
Taking the next step I took N5IB's advice and took the impedance calculations to completion. I'm not sure if the VNA will do this for me, but for now I constructed an Excel spreadsheet where I can jus
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Dave W0DCX
· #22273
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The mysteries of tuning a random wire
I just read Jim's latest post. Very nice. I have not yet done a full sweep, but I did try characterizing this so-called antenna for a few bands. I think the results are consistent with what I original
I just read Jim's latest post. Very nice. I have not yet done a full sweep, but I did try characterizing this so-called antenna for a few bands. I think the results are consistent with what I original
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Dave W0DCX
· #22261
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The mysteries of tuning a random wire
Jim, thanks for your mentoring. I am going to follow up and report back with the specific data you requested. What I am trying to do here is explore the electromagnetic behavior of random wires AND tr
Jim, thanks for your mentoring. I am going to follow up and report back with the specific data you requested. What I am trying to do here is explore the electromagnetic behavior of random wires AND tr
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Dave W0DCX
· #22249
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The mysteries of tuning a random wire
Here is another antenna tuning conundrum. This morning I hoisted up a 72-foot random wire (and deployed a counterpoise). My calculations suggested it should tune great on 30 meters (almost exactly 3/4
Here is another antenna tuning conundrum. This morning I hoisted up a 72-foot random wire (and deployed a counterpoise). My calculations suggested it should tune great on 30 meters (almost exactly 3/4
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Dave W0DCX
· #22247
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Question About The 4 States Antenna Tuner
Thank you, Jeff, for that link. I think I have become spoiled with the marvelous internal tuner in my KX2 that will tune just about anything including the proverbial rain gutter. Dave
Thank you, Jeff, for that link. I think I have become spoiled with the marvelous internal tuner in my KX2 that will tune just about anything including the proverbial rain gutter. Dave
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Dave W0DCX
· #22243
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Question About The 4 States Antenna Tuner
Well well well. This has been pretty interesting, somewhat humiliating, and rather humorous. I followed Jim's directive and, at least with the dummy load in place, the Tuner at last seems to be behavi
Well well well. This has been pretty interesting, somewhat humiliating, and rather humorous. I followed Jim's directive and, at least with the dummy load in place, the Tuner at last seems to be behavi
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Dave W0DCX
· #22229
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Question About The 4 States Antenna Tuner
The new attached MS Word file contains updated finalized chart including SWR analysis. Thanks for everyone's input! I have yet to follow up by switching to to my transmitter after finding a good SWR m
The new attached MS Word file contains updated finalized chart including SWR analysis. Thanks for everyone's input! I have yet to follow up by switching to to my transmitter after finding a good SWR m
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Dave W0DCX
· #22228
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Question About The 4 States Antenna Tuner
I ran the dummy load test this morning. Attached is a table in MS Word showing the results. At least with the dummy load there is a semblance of functionality. When I first tried the Tuner I had the E
I ran the dummy load test this morning. Attached is a table in MS Word showing the results. At least with the dummy load there is a semblance of functionality. When I first tried the Tuner I had the E
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Dave W0DCX
· #22225
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Question About The 4 States Antenna Tuner
Thank you all for those great suggestions. I feel like my electronics IQ rose a few points just by reading your posts. I do have a dummy load and I recently acquired a NanoVNA so I will follow all of
Thank you all for those great suggestions. I feel like my electronics IQ rose a few points just by reading your posts. I do have a dummy load and I recently acquired a NanoVNA so I will follow all of
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Dave W0DCX
· #22223
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Question About The 4 States Antenna Tuner
I recently completed a 4 States Tuner kit and gave it a try. Sadly, it is not behaving correctly. The red REV light come son and stays brightly lit no matter how I adjust the inductor or capacitors. T
I recently completed a 4 States Tuner kit and gave it a try. Sadly, it is not behaving correctly. The red REV light come son and stays brightly lit no matter how I adjust the inductor or capacitors. T
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Dave W0DCX
· #22217
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First soldering project
I am new to 4SQRP group and have been learning a lot from following some of these email threads, so thanks all. This Pixie kit looks like a ton of fun for the money. Can someone tell me the power outp
I am new to 4SQRP group and have been learning a lot from following some of these email threads, so thanks all. This Pixie kit looks like a ton of fun for the money. Can someone tell me the power outp
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Dave W0DCX
· #19019
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