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# An Engineer's View

Applying logic, science and common sense.

## Sitemaps

- [XML Sitemap](https://www.cosjwt.com/sitemap.xml): Contains all public & indexable URLs for this website.

## Posts

- [US excess deaths 2020 and forward](https://www.cosjwt.com/us-excess-deaths-2020-and-forward/) - Below is a graph made with the same data shown in an earlier post. This time total deaths and deaths allegedly by or with COVID are compared week by week to the average deaths from before 2020. For 2020 the 5 year average is from the years 2013 to 2017, 2021 is from years 2014-2018
- [Soft bumper pads liquefy and turn to goo](https://www.cosjwt.com/soft-bumper-pads-liquefy-and-turn-to-goo/) - The bumper pads on some old television speakers turned into liquid and ran down the wall.
- [OSHA protects employers that mandate vaccines](https://www.cosjwt.com/osha-protects-employers-mandating-vaccines/) - OSHA suddenly says health effects from employer mandated vaccinations are no longer subject to OSHA oversight.
- [COVID-19 by the numbers](https://www.cosjwt.com/covid-19-by-the-numbers/) - Applying some science to understanding excess deaths from COVID-19, we take a deep dive into the death data from various countries and US states.
- [Facebook blurring 'approved' vs. 'authorized' vaccine monikers](https://www.cosjwt.com/facebook-blurring-approved-vs-authorized-vaccine-monikers/) - Facebook may be misleading its readers to thinking the COVID vaccines authorized for emergency use by the FDA have met the standard for FDA approval.
- [Reading modem status registers in Ubuntu linux](https://www.cosjwt.com/reading-modem-status-registers-in-ubuntu-linux/) - How to view the modem status pins on a serial port in Ubuntu linux.
- [We Wish You a White Trash Christmas](https://www.cosjwt.com/we-wish-you-a-white-trash-christmas/) - Whoa there!!! I know... I know what you might be thinking. What is a post like this doing in an engineering blog. Engineers are often musicians and writers. Not necessarily great ones mind you, but sometimes when you watch your family during the holidays, words just pop into your head. Here is a retread of
- [LR Baggs Anthem, Anthem SL and Venue DI](https://www.cosjwt.com/lr-baggs-anthem-anthem-sl-and-venue-di/) - What follows is a letter of praise sent to the staff at LR Baggs. =========================== After producing a Christmas music/drama variety show at our Church last Sunday I feel compelled to share my experiences with LR Baggs vs. other solutions that arrived during sound check. As many of you likely understand, sound check for a
- [Hoverman TV Antenna](https://www.cosjwt.com/hoverman-tv-antenna/) - Read about the resurrection of an 1960s UHF TV antenna design that is making a comeback thanks to a few tweaks made by antenna enthusiasts.
- [LED Dimmer using Current Mirror](https://www.cosjwt.com/led-dimmer-circuit-using-linear-electronics/) - Shown is a simple circuit to adjust the illumination of one or more LEDs by regulating current via a current mirror circuit. This is not a simple as a potentiometer in series or as sophisticated as a PWM method, but gets the job done in a straightforward way.
- [Drawing a Schematic?  Know your Drawing Standards.](https://www.cosjwt.com/drawing-a-schematic-know-your-drawing-standards/) - Schematics are engineering drawings too and deserve a little respect during their preparation.
- [Solar Wannabee - The story of one family's hope for Green Energy](https://www.cosjwt.com/solar-wannabee-the-story-of-one-familys-hope-for-green-energy/) - Which kind of solar energy provides the best bang for the buck and Joule?
- [JACK/PLUG - Jack, Plug, Male, Female Connectors](https://www.cosjwt.com/jack-plug-male-female-connectors/) - JACK/PLUG - Plugs can have male and/or female contacts, so can Jacks.
- [PV Solar Inverters and FCC Part 15](https://www.cosjwt.com/pv-solar-inverters-and-fcc-part-15/) - Part 15 rules can render your PV Solar electric system illegal to operate.
- [Can Lithium Batteries Compete with Lead?](https://www.cosjwt.com/can-lithium-batteries-compete-with-lead/) - Can Lithium Batteries Compete with Lead?
- [Solar and Wind - When are they Energy and Financially Positive?](https://www.cosjwt.com/solar-and-wind-when-are-they-energy-positive/) - Recently my interests have turned again to alternative energy sources. Whenever I do this, I always find myself looking at the big picture of every energy sub-topic including sources, transmission and use. For example... Hybrid automobiles seem to be an interesting idea initially. However, if you take a step back and look at the entire
- [Getting started with alternative energy](https://www.cosjwt.com/getting-started-with-alternative-energy/) - Recently I turned my attention to alternative energy including solar, wind and hydro. I gave no hydro possibility, but still researched some of the offerings since many of the techniques apply to wind also. This leaves solar and wind as possible sources of energy. Solar can be further split into two categories: thermal and photovoltaic.
- [Grate Wall of Fire](https://www.cosjwt.com/grate-wall-of-fire/) - If you have an old fashioned open fireplace and have always wondered "there has got to be a better way to 'do' fire" here is your answer. A unique fireplace grate made be Grate Wall of Fire stacks the firewood on a slanting grate. This self feeding arrangements also maximizes the room's exposure to the
- [The secret about LG clothes washing machines](https://www.cosjwt.com/the-secret-about-lg-clothes-washing-machines/) - At least one sales person selling LG front load clothes washers warns the unit should only be installed on a concrete floor.
- [The Premium you pay for a matching Washer and Dryer](https://www.cosjwt.com/the-premium-you-pay-for-a-matching-washer-and-dryer/) - The startling premium you pay for a dryer that matches its companion front loader clothes washing machine.
- [Energy Monitor for Home](https://www.cosjwt.com/energy-monitor-for-home/) - I have long wanted to provide a way for the family to "see" how much energy is being used at any given moment so they can get a feel for what uses the most. I had plans to incorporate toroid pick ups in the two hot lines in the breaker panel. Thankfully, the late overall
- [Blueline Power Cost Meter](https://www.cosjwt.com/blueline-power-cost-meter/) - I ordered a PowerCost Meter from Blueline Innovations in an effort to better demonstrate to my family the overall power consumption of everyday things in a home. The hope is by seeing the cost per hour as things are turn on and off, increased awareness will suggest to turn things off. That's the hope of
- [Battery on Concrete Floor... Myth?](https://www.cosjwt.com/battery-on-concrete-floor-myth/) - The 12 volt lead-acid battery for my backup sump pump does not seem to last for more than about one year. There is a "maintenance" battery charger that is, supposedly, designed to keep a battery topped off and ready to go should the backup power be needed. I have heard the rumor putting batteries on
- [Connectors - N vs. PL259](https://www.cosjwt.com/connectors-n-vs-pl259/) - Recently I specified some cables and connectors for an antenna system we are putting together at work. I stumbled across this... http://www.eham.net/articles/5300 There are some good thoughts in there and, quite obviously, some belief systems in place. For the average ham with max power on HF and something less on bands above 50MHz the following
- [MFJ Antenna Analyzers](https://www.cosjwt.com/mfj-antenna-analyzers/) - In the past few months I have been testing antennas and antenna ground systems for a series of articles on the main part of this web site... http://www.cosjwt.com/ One piece of equipment which proved absolutely essential is the antenna analyzer from MFJ Enterprises. I have the older cousin of the MFJ-259B pictured here... This newer
- [Using CVS for Radio Contact Log Files](https://www.cosjwt.com/using-cvs-for-radio-contact-log-files/) - Being a ham radio operator sometimes forces us to operate from many different locations. We frequently wind up logging our contacts on many different computers. Later we find ourselves with the task of combining our logs into one big log so we can check our standings of whatever it might be we care about: WAS,
- [Sound Card Ham Radio Digital Cheap](https://www.cosjwt.com/soundcard-ham-radio-digital-cheap/) - I am experimenting once again with using a computer, its sound card and MixW to perform some RTTY, PSK and other digital modes. Somewhere I have a transformer isolated homebrew adapter made up, but have been examining what new possibilities are offered by my new Icom IC-746. So I am in the usual evaluation of
- [Use the same flux for touch up soldering](https://www.cosjwt.com/use-the-same-flux-for-touch-up-soldering/) - We stumbled on to something that is quite likely well known to any assembler, but we were too busy to notice. We had some boards manufactured (stuffed with components) at an assembly house in Colorado. There were a few issues that required a little re-flow of solder. We heated up the pads, applied some of
- [Daylight Saving Time](https://www.cosjwt.com/daylight-saving-time/) - Since this is a leap year day, let's celebrate by making sure we don't forget when Daylight Time begins. Remember last year they changed the dates... From: http://aa.usno.navy.mil/faq/docs/daylight_time.php Starting in 2007, daylight time begins in the United States on the second Sunday in March and ends on the first Sunday in November. On the second
- [Outdoor Yard Lighting attracts Lightning](https://www.cosjwt.com/outdoor-yard-lighting-attracts-lightning/) - Well not really attracts lightning, but certainly allows for more pickup of lightning energy. Last night on our Sunday Night Tech Net (Fauquier County, VA Repeater) a fellow named Bob brought up the topic of proper grounding for his upcoming coax fed 40 meter antenna. During the discussion about common ground points and other relating
- [Energy from Water Volume](https://www.cosjwt.com/energy-from-water-volume/) - The web site...  http://water4gas.com/2books.htm  ...speaks of 1,833 gallons of hydrogen and oxygen production from one gallon of water in their electrolysis device. They go on to suggest this will last for months of driving. The typical sub-compact automobile consumes over 300 gallons of air per minute at typical power generating RPMs (data converted from
- [Magnetic Antennas Work Well on Vehicles](https://www.cosjwt.com/magnetic-antennas-work-well-on-vehicles/) - If you are new to ham radio, CB or scanner listening you may have been told magnetic antennas are less efficient than comparable antennas that attach via a direct physical connection. The answer is... it depends. However, magnetic mount antennas seem to receive more criticism than they deserve and for VHF and higher frequencies the
- [Energy from Water](https://www.cosjwt.com/energy-from-water/) - In the last few weeks the spam has brought in links to this web site claiming they can improve the efficiency of your car by "unlocking" the energy stored in water. http://water4gas.com/2books.htm Water 4 Gas? OK I'll bite. Mind you if this were several years ago I would not even bother, but the gas prices
- [Radioactivity](https://www.cosjwt.com/radioactivity/) - Another engineer at work told me a story of the Nuclear Boy Scout. I search on Google and found this... http://www.dangerouslaboratories.org/radscout.html This is an amazing tale of what NOT to do. Enjoy.
- [Bio Boat not likely Carbon Neutral](https://www.cosjwt.com/bio-boat-not-really-carbon-neutral/) - I stumbled across a news article about a new cool looking boat preparing to beat an around the world boat speed record. The Article is here. It speaks of using human body fat as a bio fuel which is carbon neutral. Hmmm, fine, but the claim the craft itself is carbon neutral fails to recognize
- [J-Poles aren't so simple afterall](https://www.cosjwt.com/j-poles-arent-so-simple-afterall/) - I finally got my copper pipe J-Pole up on a modest mount and cabled into my ham shack. It works, but I stumbled into many interesting things that most folks seem to ignore. In addition to the many J-Pole tutorials on the Internet you should also consider: Any metal below the bottom of the J
- [Decoupling a J-Pole](https://www.cosjwt.com/decoupling-a-j-pole/) - When feeding a J-Pole is obviously makes sense to install a choke balun to ensure the outside of the coax shield does not conduct energy down the coax thus degrading the antenna pattern via additional radiator area. This article nicely discusses using beads to achieve the goal: http://www.antennex.com/shack/Dec99/beads.htm They suggest putting the balun at the
- [Radio Mobile for RF Link Analysis](https://www.cosjwt.com/radio-mobile-for-rf-link-analysis/) - Here is a great tool for RF Analysis which: Deals with diffraction effects, Computes the Fresnel effects, Handles elevation data from many different sources RF Links have many issues that plaque all too many folks in charge of ensuring radios work as planned. A tool like this provides this kind of view... With this tool
- [Network control of TenTec Omni VII](https://www.cosjwt.com/network-control-of-tentec-omni-vii/) - A fellow wrote an excellent summary of some possible ways to control a TenTec Omni VII radio from the Internet. Here is the link... http://www.haven2.com/index.php/ham-radio/122#comment-8337 He highlights the potential ways the radio can be found and compromised. This is well worth the read. The author makes a point suggesting the value of this radio's network
- [Insane Auction Price](https://www.cosjwt.com/insane-auction-price/) - I have been purchasing some used ham radio equipment from Ebay and decided to see what the Kenwood TS-2000 transceivers are going for on the used market. I discovered they are holding their value quite well... a bit too well actually. This particular unit, listed here on Ebay, included one TS-2000 and a software license
- [The Football Coach's Tape](https://www.cosjwt.com/the-football-coachs-tape/) - For several years I have been filming my son's football games. I always gave a copy to the coach for review. The tapes proved so useful I became a sort of official team videographer. During this time I have collected some tips that help me provide what the coach needs. In no particular order they
- [Sears rebate rejected](https://www.cosjwt.com/sears-rebate-rejected/) - We purchased a nice new and very quiet dishwasher last month from the Warrenton, VA. It replaced the noisiest machine I have ever heard run without flying apart to pieces. It works great. We were promised a rebate of some small amount as part of the deal. We sent it the paperwork and, of course,
- [Keep good track of your insurance claims...](https://www.cosjwt.com/keep-good-track-of-your-insurance-claims/) - Do you think your insurance company and the medical vendors will handle your paperwork for you flawlessly? Will, actually, the do a pretty good job most of the time, but... However, when you have any kind of complicated procedure, like anything involving an operation, many different parties participate and line up to be paid. Suddenly
- [Football Joke](https://www.cosjwt.com/football-joke/) - A first grade teacher in a Maine classroom explains to her class that she is a Patriot's fan. She asks her students to raise their hands if they, too, are Patriots fans. Everyone in the class raises their hands except one little girl. The teacher looks at the little girl with surprise and says, "Jenny,
- [Ground Rods Don't Help RF Much](https://www.cosjwt.com/ground-rods-dont-help-rf-much/) - During construction of a vertical antenna in my back yard, I wondered if the popular suggestion that ground rods are essential to good RF performance and antenna efficiency even if you have a system of radials was true. The answer appears to be no. Visit... http://www.cosjwt.com/index.php?a=21 ...for more information.
- [Speedy Bend Resistor Lead Forming Tools](https://www.cosjwt.com/speedy-bend-resistor-lead-forming-tools/) - For those of you building Elecraft Kits like the K2, KX1, etc. you should consider using these lead bending tools to form your components perfectly. It took a little while to locate a source, but I finally found and purchased a set from Production Devices in California. They are called "Speedy Bend."
- [Cheap Lightning Protection](https://www.cosjwt.com/cheap-lightning-protection/) - Here is a simple way to protect your radio investment from the high voltages induced by lightning activity. Just attach it to your radio and hook the antenna lead to the protector. Ideally you would put this at the entrance to your house or vehicle, but anything is better than nothing. It is a very
- ["Paper HDTV" to size HDTV](https://www.cosjwt.com/use-a-paper-hdtv-to-size-your-next-plasma-or-lcd/) - Football on the wall this season? I hope so. We have finally decided to get a wall mount high definition television (HDTV). The price points are amazing right now. We stopped by Sears with some idea of the dimensions over our fire place mantle. Even with written down measurements, we still had a hard time visualizing
- [CB Radio Frequencies](https://www.cosjwt.com/cb-radio-frequencies/) - Since many folks new to CB radio might get confused by the available, but illegal 10 meter radios which have 40 channels just like real 11 meter CB radios do, here is a list of legit frequencies and the corresponding channels. Good ol' CB Radio When shopping for a CB radio you are well advised
- [Twin CB Antennas on Trucks](https://www.cosjwt.com/twin-cb-antennas-on-trucks/) - Ever wonder why truckers use twin antennas for their CB radio needs? Here is an article which uses simulation to examine the merits and pitfalls of this technique. Simulation of Two CB Antennas
- [Yet another CB Shop gets it](https://www.cosjwt.com/yet-another-cb-shop-gets-it/) - Here is yet another CB shop that got slapped...  http://www.fcc.gov/eb/Orders/2006/DA-06-2549A1.html To their credit, this shop fought pretty hard with point-of-sale signs explaining the illegal radios were for amateur radio use only. They even used an attorney to communicate with the FCC. None of that mattered one wit. $7,000. What blows me away yet again is
- [Another "Kick me" CB Shop](https://www.cosjwt.com/another-kick-me-cb-shop/) - Here is yet another example of a play by play showing just how stubborn CB shops can be insisting they have some kind of right to ignore FCC rules created, enforced and, yes, interpreted by the FCC... http://www.fcc.gov/eb/Orders/2007/DA-07-881A1.html Read all of it and see how the FCC gives stores chance after chance to straighten up
- [10 Meter CB? vs. FCC](https://www.cosjwt.com/10-meter-cb-vs-fcc/) - For some time we all have been aware that strange 10 meter CB like equipment has been available. Marketed as Amateur Radio transceivers, these units appear to be mostly available from CB shops around the country. What is so funny about all this is the FCC is continuously leveling fines against the marketers of this
- [FCC's 40dB loss per decade vs. 20dB](https://www.cosjwt.com/fccs-40db-loss-per-decade-should-be-20db/) - The FCC would have us believe the rules for calculating path loss of an RF signal somehow double below 30MHz in their tireless pursuit of pushing BPL onto the users of the HF radio spectrum. Sadly, even using their double loss, it is easy to show signals from BPL even at 1/10 the Part 15 limits kills even the cheapest HF receiver.
- [Kenwood TM-G707 2M/440 Radio](https://www.cosjwt.com/kenwood-g707-2m440-radio/) - I have had this radio for about two years now. It really is very nice. I immediately purchased the display remote cables and have the display attached to my center drink holder with Velcro. I am told my transmit audio quality is much louder and better than the the scrap I was using previously. I
- [Vertical Antenna Anti-Gain](https://www.cosjwt.com/vertical-antenna-anti-gain/) - There was a humerous response in this discusson on the DX Engineering web site concerning the need for radials. The web page is here... DX Engineering It is in the pop-up link "how just a few radials can do wonders for your signal by WB2WIK/6." A commenter suggested the claim of an additional 20dB or
- [Vertical Antenna Project](https://www.cosjwt.com/vertical-antenna-project/) - I have embarked on a vertical antenna project and will be covering the steps in several articles starting here... http://www.cosjwt.com/index.php?a=7 This will be treated a bit like an engineering project with the following steps: Refine requirements Prepare Bill of Materials Select location in yard Water drill hole for mounting pipe Prepare area around pipe to
- [GAP Titan vs. Reference Monopole](https://www.cosjwt.com/gap-titan-vs-reference-monopole/) - Here is a good example of a comparison between the Gap Titan antenna and a simple mono-band dipole. While this is yet another A/B test, the author does follow reasonable engineering practices. http://www.qsl.net/aa3rl/titan.html The findings support: GAP Titan is a compromise between performance and convenience Mono-poles can outperform the Gap Titan in certain circumstances GAP
- [Static Electricity Explained](https://www.cosjwt.com/static-electricity-explained/) - For you beginners wondering about what static electricity is or for you folks who already do know, take a ride in the way back machine and watch this old government video. While a little long in the tooth it does a terrific job explaining and demonstrating various examples of static electricity. The Amazing Power of
- [Computer Modeling and Measurements of BPL](https://www.cosjwt.com/computer-modeling-and-measurements-of-bpl/) - One example of BPL emissions in this report. Here is a report from NTIA to the FCC of some very interesting modeling and real measurements. It illustrates the many ways BPL signals can move about and certainly suggests BPL over medium voltage power lines are not the way to go.

## Pages

- [Privacy Policy](https://www.cosjwt.com/about/privacy-policy/) - Definitions and legal references This Website (or this Application) The property that enables the provision of the Service. Owner (or We) John Huggins - The natural person(s) or legal entity that provides this Website and/or the Service to Users. User (or You) The natural person or legal entity that uses this Website. Service The service
- [Terms and Conditions](https://www.cosjwt.com/about/terms-and-conditions/) - Definitions and legal references This Website (or this Application) The property that enables the provision of the Service. Agreement Any legally binding or contractual relationship between the Owner and the User, governed by these Terms. Owner (or We) John Huggins - The natural person(s) or legal entity that provides this Website and/or the Service to
- [Thank-u-links](https://www.cosjwt.com/thank-u-links/) - Blogs Directory
- [About](https://www.cosjwt.com/about/) - "What we have here... is... failure to communicate..." So it seems with today's state of affairs where technical truth finds itself constantly at odds with commercial marketing departments and well-lobbied government bureaucracies. The days of scientists suggesting tobacco smoke is not harmful to your health appear to be behind us. However, the fight for truth
- [Sitemap](https://www.cosjwt.com/sitemap/)

## Categories

- [Uncategorized](https://www.cosjwt.com/category/uncategorized/)
- [BPL](https://www.cosjwt.com/category/bpl/)
- [HamRadio](https://www.cosjwt.com/category/hamradio/)
- [Antennas](https://www.cosjwt.com/category/antennas/)
- [Electrical](https://www.cosjwt.com/category/electrical/)
- [CB](https://www.cosjwt.com/category/cb/)
- [Television](https://www.cosjwt.com/category/television/)
- [Kits](https://www.cosjwt.com/category/kits/)
- [TenTec](https://www.cosjwt.com/category/tentec/)
- [Kenwood](https://www.cosjwt.com/category/kenwood/)
- [Video](https://www.cosjwt.com/category/video/)
- [Rebates](https://www.cosjwt.com/category/rebates/)
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- [Test-Gear](https://www.cosjwt.com/category/test-gear/)
- [CVS](https://www.cosjwt.com/category/cvs/)
- [Carbon](https://www.cosjwt.com/category/carbon/)
- [RTTY](https://www.cosjwt.com/category/rtty/)
- [PSK](https://www.cosjwt.com/category/psk/)
- [Soundcard](https://www.cosjwt.com/category/soundcard/)
- [Microphone](https://www.cosjwt.com/category/microphone/)
- [Icom](https://www.cosjwt.com/category/icom/)
- [Soldering](https://www.cosjwt.com/category/soldering/)
- [Radioactivity](https://www.cosjwt.com/category/radioactivity/)
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- [Energy](https://www.cosjwt.com/category/energy/)
- [Lightning](https://www.cosjwt.com/category/lightning/)
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- [solar](https://www.cosjwt.com/category/solar/)
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- [Music](https://www.cosjwt.com/category/music/)
- [Health](https://www.cosjwt.com/category/health/)
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