[Amps] 10dB and propagation

[R.Measures]

On Feb 8, 2005, at 8:47 AM, Kim Elmore wrote:

> I think the point being made here is not that the equipment is 
> questionable (the attenuator could be accurate to +/- 10^-13 dB) but 
> that other things, none of which are contrary to what we currently 
> know about HF propagation, were going on to confound your 
> interpretation of the data that was collected.
>
Since the measurement equipment and procedure was the same on one day 
as on the other, the confounding factors should have been constant. and 
the observed gain on any two days should have been the same.

> Kim Elmore, N5OP
>
> At 10:02 AM 2/8/2005, you wrote:
>
>> On Feb 8, 2005, at 7:39 AM, Ian White G3SEK wrote:
>>
>>> R. Measures wrote:
>>>>> When measurements don't fit in with everything we already know, 
>>>>> real scientists and engineers are trained to ask themselves:
>>>>>
>>>>> "Is this something really new - am I really another Einstein? Or 
>>>>> did I simply get it wrong?"
>>>> The question is simply: Is my HP-355 step-attenuator set 
>>>> intermittently off by 3db?
>>>
>>> If you still cannot see that the potential sources of error in your 
>>> "propagation experiment" were *vastly* more numerous and complicated 
>>> than that, then this horse is dead.
>>
>> NBS traceable step-attenuator A-B measurement is the gold standard of 
>> gain and loss determinations.
>>>
>>>
>>> --
>>> 73 from Ian G3SEK         'In Practice' columnist for RadCom (RSGB)
>>> http://www.ifwtech.co.uk/g3sek
>>> _______________________________________________
>>> Amps mailing list
>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>
>> Richard L. Measures, AG6K, 805.386.3734.  www.somis.org
>>
>> _______________________________________________
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>> http://lists.contesting.com/mailman/listinfo/amps
>
>                           Kim Elmore, Ph.D.
>                        University of Oklahoma
>         Cooperative Institute for Mesoscale Meteorological Studies
> "All of weather is divided into three parts: Yes, No, and Maybe. The
> greatest of these is Maybe" The original Latin appears to be garbled.
>
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>
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org