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Re: [RFI] Odd broadcast radio reception.

To: ka5s@earthlink.net
Subject: Re: [RFI] Odd broadcast radio reception.
From: Jim Chaggaris <jimc@pwrone.com>
Date: Mon, 5 Jul 2021 23:10:53 -0500
List-post: <mailto:rfi@contesting.com>
Ok, I read this post...What are your intentions?

Best Regards,

Jim N9WW

James Chaggaris
President 
PowerOne Corp.
2325 Dean St. Suite 800J
St. Charles, IL 60175
Phone: (630)443-6500
Cell: (630)669-2241


> On Jul 5, 2021, at 10:58 PM, Cortland Richmond <ka5s@earthlink.net> wrote:
> 
> Those of us who got into Amateur Radio in our youth -- if we learned more on 
> our own -- might sometimes have more understanding of electronics than some 
> who walked off a stage with a BSEE.
> 
> Learning how to read at age three, I latched onto my parent's library after 
> we returned from the UK in 1953, and was quickly reading adult level books.
> 
> I got into Amateur Radio after a teacher showed how insulated wire on a nail 
> could pick up thumbtacks and paperclips, so I  I bought some wound inductors 
> from our landlord's junkyard, and found one shaped like a doughnut.   When  
> powered for a short time, that TV  focus coil could propel ball bearings 
> across my bedroom enough to stick in the wallboard.   Dad of course talked to 
> the landlord, and a crystal-radio kit distracted me.... with Dad promising a 
> transmitter if I built the ARRL's two-6AQ5 regenerative receiver.
> 
> I got one of the WV6 Novice licenses and with a short hiatus, got my General 
> Class at 14 or 15, with Advanced and Extra after I joined the Army Signal 
> Corp at 17, reenlisting for  Avionics maintenance, and on retiring, walked 
> into engineering positions with no degree or coursework.
> 
> From a Quora Answer:
> 
> If we’ve worked hand-in-hand with engineers of other specialties, we will be 
> more able to produce — working with them — solutions or designs that allow 
> both to maximize the desired results. We will be likely to to see fixes (when 
> needed) that a conventional education might not consider.
> 
> And if we’re both accommodating of overall goals; resourceful, thoughtful and 
> flexible, creativity that suggests factors others don’t think of may be 
> acceptable despite others’ failure to see what we may suggest.
> 
> That’s how an autistic engineer (even sans coursework or degree) can work, 
> and how I had a 21 year career in communications and avionics in the Army — 
> but it was 28 years after that before I learned I was “on the autism 
> spectrum”. I’ve worked in EMC test and/or design engineering in a number of 
> fields; TEMPEST and consumer/business computers, Digital Telecomm Network 
> equipment, portable defibrillators, and Aviation EMC.
> 
> The physics are the same; only the standards are different
> 
> https://www.quora.com/Which-group-of-individuals-will-be-more-successful-in-creativity-and-innovation-operators-working-daily-on-specific-systems-or-highly-educated-engineers-that-have-never-worked-on-a-specific-system-or-capability/answer/Cortland-Richmondt.\\
> 
> LINK
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Charles Gallo <charlie@thegallos.com>
> Sent: Jul 5, 2021 8:44 PM
> To: David Eckhardt <davearea51a@gmail.com>
> Cc: Rfi List <rfi@contesting.com>
> Subject: Re: [RFI] Odd broadcast radio reception.
> 
> 
> 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 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 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 >> 
> _______________________________________________ >> RFI mailing list >> 
> RFI@contesting.com >> http://lists.contesting.com/mailman/listinfo/rfi >> > > 
> > -- > *Dave - WØLEV* > *Just Let Darwin Work* > 
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