Thanks for the explanations guys, I´ll give it good use. Rohde Schwarz you earned my appreciation.

Simple and straightforward in general terms. Thank.

This is one of the best explanations out there! Thank you!

I work with QAM equipment. Repairing, tuning, and bench testing. Watching the constellation during testing is cool to see live. This technology goes back decades but is still widely used today for cable internet. For sending large amounts of data through copper, this is primary. Fiber is superior, but even that is converted to QAM for coax. ATX, Broadband International, Scientific Atlanta and Arris still manufacture QAM amplifiers. In the beginning, the bandwidth ranged 54-330mhz, then to 450(i think), 550, 750, 860/870, 1,000, and now we're at 1.2hgz. GHZ doesn't play nice with coax over long runs, so eventually to keep up with data rate demands, either the modulation will change, coax will change, or everything goes to fiber. Great presentation!

Thank you for the understandable and compact wrap up of the topic! Also the comparison between (A)PSK and QAM really helped me to better understand the topic. Cheers.

Kudos to you on a great presentation. You basically covered the essence of Digital communications subject in my undergrad school. Please keep it coming. Thank you.

Thanks for this great explanation of the basics, very helpful. Regards from Hannover/Germany, Danke.

You save my day again, thanks.

straight to point thanks

Great ...Love from India🇮🇳

Thanks a lot. This video has saved me much time.

This kind of explanation is required for proper understating of the concept . Thanks for such great explanation.

Very clear and informative. Thanks. Would love to hear more about the Crest factor (PAPR).

Nice presentation

Very clear and precise explaination. Thx

Thanks for the video - What does it mean when there are two extra symbols on a 64QAM measurement? I've noticed there are two symbols with 0 and 180 degree phase on every 802.11g measurement I do.

it was so informative , thank you alot , what is the name of the playlist than contain this video ?

thx a lot

great

Qam or qfm is the thing #ofdm

I don't understand how you get the number of bits at 2:00

Why bother creating the word among when between is used for greater than two anyway.