[TenTec] On Noisy Transmitters

[K8JHR]

REALLY ???   You say this is all based on science.

	OK... SHOW ME THE SCIENCE.

Instead of calling me names, please EXPLAIN exactly what makes this 
problem statistically significant.  Screw the lawyer reference.  I am 
just a guy who is fascinated by radio.

Don't just proclaim it, actually EXPLAIN AND PROVE IT.

	Just what "science" am I missing?
	Where are the lab studies?
	Who did them, and how were they done?
	Where are the real world case studies?
	How many such cases are there?
	How many cases are document with test measurements?

AND make it all SPECIFIC to the TS-590 ... generalizations that apply to 
radios in general can not suffice prove the 590 is any worse than any 
other radio.  Is K3LR an ignorant business manager type?  He has a pile 
of ICOM radios which, according to generalizations made in this thread, 
are subject to the same faults as the TS-590s.  Is he also clueless?

A good expert witness, like a good teacher, is expected to explain 
complex and abstruse concepts to regular folks.  Pretend you must 
convince 12 jurors who are not experts, but possess common sense, and 
consider 5 of 12,000 individual cases statistically insignificant.

One does not need an advanced degree to recognize the old Fifth Grade 
brush off - you know, when an adult avoids stating a real answer by 
saying, "Someday you will understand..."    Even the unwashed who walk 
amongst the wise know when somebody is making a claim they have yet to 
substantiate.

Here is an opportunity to serve a buffet of SCIENTIFIC PROOF, because, 
so far, I count Rick's two cases in Germany, Bob's case from Field Day, 
and, I will even spot you two free bonus cases, gratis, just to be 
sporting.

	WHERE ARE ALL THE OTHER CASES?

	Why is there nothing about this on the reflectors?
	
	How could so many guys using these radios not know this?


Mr. Burdick is a fine gentleman, really, but I suspect our jury might 
not give his testimony full weight and consideration because, first, he 
has an obvious conflict of interest, and, second, his comments are 
purely anecdotal, lacking any specific real world examples, bearing the 
same lack of statistical significance we are seeking by this inquiry.

So,... please explain what specific "science" refutes me when I say 
there are loads of guys using the rig with no reported problems?  What 
are all these guys (and I) missing?


------------------- JHR   --------------------



On 7/7/2014 1:20 AM, Jim Brown wrote:
> On 7/6/2014 4:38 PM, K8JHR wrote:
>> I know there are loads of 590s in service in contest group shacks and
>> have been used happily on many FD sites, so the question becomes one
>> of statistical significance.
>
> That's the approach of a business manager, or a public relations
> manager, or an attorney defending a guilty client, but it's NOT good
> science. Science in this case happens in the lab where the actual
> performance of rigs is MEASURED under controlled conditions that are
> representative of operating conditions. Some measurements can also be
> done with spectrum analyzers looking at the signals from transmitter on
> the air. See my link of a day or so ago to the presentation on clean
> signals.
>
> 73, Jim K9YC
> ____________________________________________