Total posts : 45366
The Rangemaster and the Grain transmitters are designed to be used with a whip. The ProCaster comes with it’s own whip (you can argue that it’s a small pipe and so not identical, but for all intents & purposes it’s the same). The AMT5000 could have been mounted in a weatherproof box and configured with a whip. And to make the testing consistent, the Talking House should really only have been tested with a whip (in place of the built-in wire so that it’s internal tuner could have been used) or, better yet, not tested at all – using the ATU plus whip is really using a base loaded coil antenna.
The point has been made about modulation. That is certainly a factor in determining the effective listening range of the transmitter (along with compression) but I don’t believe that your field strength will be affected – these are some of those ‘other factors’ I mentioned that determine how your signal sounds and thus it’s range.
But the biggest kicker in the entire mix is the argument that somehow it’s the manufacturer’s fault that the testers did not know how to tune the AMT5000 correctly. That’s like saying, in an astronomy experiment, that you couldn’t properly measure the differences in light from an object’s transit across a star because you didn’t know how to properly focus the telescope. But it’s not YOUR fault (since you’re an astronomer with over 40 years experience)! Really. Why bother doing the experiment in the first place if you don’t know how to properly operate the equipment, or there is some question about it. You need to get the information, period. Or that 40+ years of experience really doesn’t say all that much about you at all (I’ve worked with many people who claim that type of experience, but without knowing the details, it’s difficult to judge exactly what that means – there’s a difference between a true 40 years of varied and interesting experience, and having 1 year of experience 40 times, for example).