[RFI] Odd broadcast radio reception.

[Edward Mccann]

David et al:

Ohm is high on the list, but without a Kirchhoff check of voltage drops around the circuit, we’re all up Schitt’s Creek.

Ed McCann
AG6CX
MSEE MIT
Researcher for Lan Jen Chu  

Sent from my iPhone

> On Jul 5, 2021, at 5:48 PM, David Eckhardt <davearea51a at gmail.com> wrote:
> 
> And worse yet, they come out of 4-years not knowing Ohm's Law!!!  They may
> be able to put it on the white board, but
> certainly don't know how to use it.  Pretty important!!!! ??
> 
> Dave - WØLEV
> 
>> On Mon, Jul 5, 2021 at 6:44 PM Charles Gallo <charlie at thegallos.com> wrote:
>> 
>> And these days, you get an EE Degree, and they barely cover BJTs,
>> everything is FETs/MOSFETs. BJTs are basically considered “old, obsolescent
>> tech”
>> 
>> --
>> 73 de KG2V
>> Charlie
>> 
>>> On Jul 5, 2021, at 6:40 PM, David Eckhardt <davearea51a at gmail.com>
>> wrote:
>>> 
>>> ARRL has always been behind the power curve.  Remember how long it took
>>> them to recognize the lowly transistor and to start including it in their
>>> publications, especially QST and the Handbook?  A long time well after
>>> industry had accepted the new, smaller, cooler, and few aging issues, all
>>> of which vacuum tubes have!  They couldn't grasp current controlled
>>> instead of voltage controlled active devices.  I was the one who 'taught'
>>> ARRL how to represent printed transmission lines and printed reactive
>> lines
>>> in the 1985 Handbook, 1296 transverter.
>>> 
>>> Now they want to give Technician licensees HF privileges with no
>> additional
>>> questions on the 'exam' (such as it is) applied to HF operations.  I give
>>> up...... even though my ex wife gave me life membership - long ago.
>>> 
>>> Jim, I believe we both know Ken Wyatt.  I recently attended his 70th
>>> surprise birthday party in Fort Collins, Co.  I'm 74 and counting.
>>> 
>>> Dave - WØLEV
>>> 
>>>> On Mon, Jul 5, 2021 at 3:37 PM Jim Brown <jim at audiosystemsgroup.com>
>> wrote:
>>>> 
>>>>> On 7/5/2021 11:27 AM, David Eckhardt wrote:
>>>>> A strong RF source likely sent the front end and maybe even the IF into
>>>>> saturation to produce a condition where nothing was received.
>>>> 
>>>> This mechanism makes great sense to me. BTW -- THIS is my definition of
>>>> "fundamental overload," and it was rejected by ARRL when I was asked to
>>>> write a chapter on RFI for the Handbook more than ten years ago. Theirs
>>>> dates back to the days of analog TV, when it was common for rigs to
>>>> produce harmonics that caused TVI.
>>>> 
>>>> 73, Jim K9YC
>>>> _______________________________________________
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>>>> 
>>> 
>>> 
>>> --
>>> *Dave - WØLEV*
>>> *Just Let Darwin Work*
>>> _______________________________________________
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>> 
>> 
> 
> -- 
> *Dave - WØLEV*
> *Just Let Darwin Work*
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