Bob, I have not studied or captioned my results for the first series of comparisons, side-by-side, nor the most recent series where I tested a few of my antennas alone on the same mount. Frankly I haven't ever studied them to see if I can decipher anything special. I may have commented in a post here or there, but I don't know anything particular except what the averages show. I have noted that the averages might not be trustworthy without the same 8 guys testing for sure, to be fair I think the radios can make some differences as well. I also agree there are questions raised also when guys are switching antennas, radios, and their amps, to say nothing about conditions. I don't recall anything specific about a buddy convincing me to the point of my results. I know I have commented about some of my buddies comments, but that was said as a comment among many that were made during this process. Can you reference this comment so I can look back at something I might have said or written?
Bob I try, but at times I do get tried eyes. I don't think you are suggesting a possible mistake here, it has to be something more specific or I misunderstand your words. Again, what did I say or write that suggested I equivocated on some results. This does not compute for me. Do you have a reference, or is this a general feeling you have with what I have presented. I just write my impressions down and later add them up and post them. Sometimes I video some of these record keeping experiences trying to produce a verifiable record, and I do find myself making mistakes. Help me out. Maybe if I rehashed all of these reports so far, I too would see what you see. I spend most of my time outside doing the work, so right now I don't take time trying to analyze the results. I said this before, I think you might remember the way it went with my amazement before when I came to you months later after testing a couple of years ago and talked about my surprise in discovering my reports showed that my A99 was showing the best all around results. The question or statements are fine, but can you clarify this for me a bit? I might agree, because when I hear such comments to the contrary I also think about antennas being reciprocal. Sometimes I even get a funny feeling I've made a mistake, misunderstood, or heard an outright lie.
You're probably right here.
Well you might recall I tried the idea on a limited bases with my A99 back in 2009. I didn't have as notable results as Multimode did, but I thought I saw some improvement, but I did not insulate by raising the radiator above the insulator, I insulated side-by-side and at some point you brought up that fact as a likely reason I did not get as good of results.
I tend to believe, as you, that CMC can be a negative if excessive and left uncontrolled and it may be really hard to tell.
I think Sirio uses this characteristic in their design of the GM to their advantage, and my experience is that their design also curtails CMC's at the right point with a very effective choke. I also remember W8JI talking about CMC's to an young RF engineer about how he evaluated the occurrence of CMC's and the new engineer was said to be wrong in diagnosing the problem, so I don't think I'm qualified to say, but I do have my own ideas and I use a Field Strength Meter to suggest when an antenna is acting badly. That said however, I don't know if I'm right.
conditions here at the moment are very poor for doing antenna tests
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