Oscilloscope view of over modulation "hacked" CB radio. How to set 100% modulation.
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- Опубліковано 6 вер 2023
- Per request a video on what a "hacked" cb looks like on an oscilloscope. How to set 100% modulation without a communications test set. I also show the AMC circuit kicking in.
Like and subscribe if you're learning something or want to see cb related videos. - Наука та технологія
For someone really interested in learning about cb/amateur radio repair in hopes of taking this up as a hobby one day soon, this video is much appreciated! 👍🏾
Hey there @RL-521, my name is Paul. I am curious how you find Pulsar CB radio's UA-cam videos, in other words, if you find them to be instructional. My name is Paul Grodkowski and I found CB radio somewhat interesting in it's 1970's height of popularity, I was a youngster at the time, barely in my teens.. I have an interest in learning about technology, not as a hobby, but as a paid vocation. In such I find a lot of the videos on UA-cam to be useless and an utter waste of time and effort. Firstly, a lot of technology available for sale on the market is manufactured in China, and therefore there are very few opportunities for paid jobs domestically, furthermore, even with the manufacturing of technology products occurring of shore it was or still is believed that there are opportunities in engineering and design, but this may or may not be true. The usual method of acquiring knowledge and skills to know what to do at an engineering job is by attending school and following the program of attending classes and completing homework assignments and preparing for and writing tests with the goal of graduating from a school program. However there are many flaws in formal schooling. First thing that comes to mind is that even with going to school one SIMPLY MAY NOT ACQUIRE AND THE KNOWLEDGE AND SKILLS that are necessary to earn money. This is a PHENOMENON for which there does not seem to be any answers. Pulsar CB radios does not reveal how he has acquired his knowledge and skills to repair CB radios, but very clearly as evidenced in the above UA-cam video he has and he he does not use tools therefore contrary to what he says in the video that he is not a scientist or an engineer, just a guy who fixes CB's, he does have these skills and I put it and argue it because he does not use tools, this is something that sets the engineer apart from the service person or technician who very often do use tools. I sincerely hope that nobody who reads this, including Pulsar CB radio, finds my comments controversial. I am merely stating some observations and some opinions that I have heard through word of mouth.
That someone is going around and fixing things is unusual as most electronic equipment is mass produced offshore and is expendable, in other words, a consumer buys it, plugs and plays, and when it is does not work anymore it is usually thrown into the trash and new unit is bought to replace it and it is not REPAIRED.
Good information. Thanks.
Awesome demo
Thx!
i learned it many years ago....... thank you for bring back lost Memory;)
And most thank for that.... you are honest abtut what you know ..... big thumb up:)
Sorry for my poor english, but it leaves me ... after and after.
73 .
Nice intro brother. 73👋🏻
Thanks. There's a bunch of free apps in the play store that makes intros and a bunch of other clips for blogs, channels and social media.
Thank you so much for your videos. I do learn something each time I watch them. Can you tell me if you have a video that would describe the modulated signal from a CB radio? I am trying to simply understand what a waveform is saying about a modulated am signal from a CB on my scope. I would like to look at the waveform and be able to quickly tell by viewing the envelope what the signal is telling me by the shape of the envelope?.
I started messing with CB radios when I was 16 years old in 1976. My dad is the one who got me started and I still have his original Pierce Simpson radio. I would take old mobile radios and play with them beause I was fascinated with them. At a earlier age a took tossed out record players and cassette decks. Only to find the little rubber belt broke. I would go to the local automotive shop and get a O ring the same size. Or a small bolt came loose, especially on tape recorders. At 18 years old 1978 i wanted an oscilloscope. Do you know how much one cost then? Now i have one. Its a Protek P 2502C. Im 63 years old and looking forward to learning from it. Just for me cb shed
Great story ! I enjoy reading comments like these. I know that not many preffesional cb shops back then had oscilloscopes because of the cost. For me, repairing old cb radios is a stress relief from everyday life. I post these videos so I can hopefully bring people back to a great time in thier lives. A much simpler time.
73s
Around here in NC if you hook the AMC back up and the waveform looks anything other than Boxcars they will say you don't know shit and you wrecked their radio!
Well ur honest.
Can you show the scope and radio connections needed and what they connected to.? For us that have a scope but don't know how to hook it up.
So you need a sample port. Basically a "tee" in the antenna cable with a bnc port that goes to the scope. That's all. You definitely don't want to put full power to the scope ! Just Google sampler port for cb radios and I'm sure you'll get a bunch of hits. Let me know if there's more I can do !