Ham Radio Basics--Decibels in Five Minutes

This is the way I remember what a dB is equal to as a ratio.

[@CharlesFockaert]

in order to be an effective teacher of a subject, one must first know that subject well. those who know the subject well, but can not each the subject effectively, are many. these teachers cause the student to be confused on the subject being taught. Jim, you not only know your subjects well, but can take that knowledge and teach others without confusion. A true teacher. I said all that to say this: best simplest explanation of Decibels on the web, hands down. I thank you and pray you live to be at least 120 years, teaching the rest of us what you know.

[@alexvarelis4990]

Jim, as a new ham, I really appreciate your videos. Keep them coming! I'm trying to learn as much as I can over here 😁👍

[@ham-radio]

That is good to hear. Thanks Alexander. 73, Jim W6LG

[@Patrick-dk9rh]

Thanks Jim, you made it "sound" so easy!

[@valentinocamilo3447]

instablaster

[@sepehrsahraian3051]

Great video. Made it so easy to understand the whole concept.

[@adelarsen9776]

I'm a full call and I used to be a professional radio operator and this video just helped me remember what I was supposed to know but never did. Thank you Jim. It's so easy now.... I will watch this again in case I forget.

[@FornoDan]

Best decibel video out there. Wish you covered every topic in the ham course with a 5 minute video.

[@jeanJenner]

Totally love your video - You explain complicated things in an easy to understand way. Keep it up!

[@luiscosme1154]

Your video helped me. Thank you.

[@marthaandjim2432]

Studying for the General and this was a nice explanation to help clarify dB calculations.

[@zigzagfly1635]

Appreciate this explanation. I kept getting those questions confused on the technician test

[@ham-radio]

I'm currently in the hospital in Roseville California . I'm glad I was able to help thank you for writing . 73 Jim

[@garys8754]

Thanks Jim. Studying for the Tech license on the 13th and your presentation helped a lot

[@ham-radio]

Glad it helped! 73, Jim

[@johncoon3330]

Thank you for the explanation, I'm studying for my technician license and that helped.

[@ham-radio]

Great! 73, Jim

[@redwards2006]

I also am studying for my technician license. Thanks for sharing

[@alexandermcalpine]

Excellent trick!

[@drankurbaruah]

Thank you so much!!!

[@AGPNola]

THANK YOU SIR! This was so simple I could cry!

[@abrahamnorthhampton3327]

Great rundown. Wish someone had explained the db concept to me this simply and clearly years ago! 73

[@billysmith1986]

Nice job Jim. Thanks

[@ajw1976Horn]

Thanks for the great explanation. Very helpful. I subscribed to your channel.

[@maxwilcocks1420]

This helped me a lot. I'v been rely struggling with this as I'm trying to get my Basic Qualification in Canada.

[@yessure5291]

Did you ever get your license?

[@aperson1181]

Starts at 1:22

[@StevePlutte]

Thanks a million (dB)

[@ham-radio]

I laughed out loud when I read your comment. 73, Jim Heath

[@vicc6744]

This really helps thanks -

[@paulisabella394]

top video

[@reidtillery2856]

What is the ratio being compared to? If you say 10 DB is 10 times over. 10 times over what? Thanks for any help. De K9RFT.

[@1fanger]

Thanks

[@TheUnofficialMaker]

thanks * 40db!

[@davidjames1684]

Fair, but not a great explanation. You should have talked more about losses like a 6dB loss being a 75% loss. 6dB is about 4x but a 6dB loss is about 0.25x. Also, you didn't mention how much 1dB is or why we even use dB instead of just saying 2x, 4x.... You also didn't mention that the 3dB being 2x is an approximation but 10dB = 10x is exact. You missed some of the important basics including the actual formula of where dB is derived from and no mention of what a bel is either. A disappointing presentation.

[@samson8779]

Awesome trick 🙏🙏🙏