How to use an oscilloscope/What is an oscilloscope/Oscilloscope tutorial.


https://www.youtube.com/watch?v=CzY2abWCVTV.

Excellent video from mjlorton.  A thoroughly understandable tutorial on the basics  of the oscilloscope, how it works, and how to use this versatile piece of test equipment.  Approximate length: 32 min, 01 sec.  This is worth adding to your reference library.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

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Remembering the historical auroral opening of 25 July 2004.


Special video remembers that weekend.

Source:  Southgate Amateur Radio Club.

 

Paul Webster (PE7B) has a special treat for VHF/UHF enthusiasts.  Paul has compiled a fascinating video of that historic weekend when CMEs attributed to giant sunspot 652 caused severe geomagnetic storms and made for remarkable auroral conditions.  Nicely done production.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

Ham Amateur Radio Antennas, 35′ Crankup Tower laydown


US $799.99 Used in Consumer Electronics, Radio Communication, Antennas (Check out Ham Amateur Radio Antennas, 35′ Crankup Tower laydown http://t.co/dDfiBM5KTO via @eBay #hamradio #ham #amateurradio)…

Source: www.ebay.com

If  you’re in the market for a crank-up tower, you may want to contact this seller.  The tower is located in Riverview, Florida.  Local pickup only.  As with any internet purchase, check out the seller and the condition of the merchandise before you buy.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

Copasetic Flow: Standing Wave Ratio, or SWR, A Ham Radio Exam …


The amount of energy reflected is determined by how well the impedances of the antenna, the transmission line, and the transmitter match. The reflected rf energy can enter the transmitter and damage the final radio frequency …

Source: copaseticflow.blogspot.com

A nice, compact review (with questions) of the standing wave ratio (SWR).  This brief guide will help aspiring amateur radio licensees understand the workings of SWR.  Hamilton Carter (KD0FNR) reviews SWR test questions and highlights  the correct choices.  A good, general review for those  taking the Technician Class Amateur Radio License.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

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