Hi. These tutorials are really helpful. Better explained than most of the books. Although I have a doubt. At 10:30 you said Vo = V1' - V2'. At 11:21 you said Vo = |V1'| - |V2'| . Since both V1' & V2' are having different phases, the above two statements become contradictory. Kindly explain.
Howdy again. I did some experimenting. With values of the coupling capacitor and the choke tuning to series resonence I observed a 90 degrees phase shift over the choke. So I believe the term RF choke is misleading. I would call it an inductor. I used 47 pF and 3,9 uH in series. I fed the circuit 10,7 MHz with my signal generator. I observed phase shifting increase and decrease when changing the frequency. Regards again.
Howdy. Otherwise good. I don't understand the phase shifting though. Assuming zero deviation. What brings about the +-90 degrees shift ? The coupling capacitor perhaps ? I would say the capacitor must be heavily loaded. Then the current is -90 degrees, yes. Regards.
I think you are in error at the end .. you HAVE TO use a limiter on a FS discriminator because it is sensitive to amplitude and phase.. so you want to take the amplitude portion out.
After watching her next video (58), I think what she meant to say was that there isn't a built in limiter in the foster seeley circuit so the disadvantage is that you would have to put a limiter upstream, whereas in the ratio detector in the next video, it has one built in so its advantage is that it doesn't need a limiter.
Got Perfect explanation after watching hundreds of videos of other lectures ❤❤thank you mam❤❤
Hi. These tutorials are really helpful. Better explained than most of the books. Although I have a doubt. At 10:30 you said Vo = V1' - V2'. At 11:21 you said Vo = |V1'| - |V2'| . Since both V1' & V2' are having different phases, the above two statements become contradictory. Kindly explain.
Howdy again.
I did some experimenting. With values of the coupling capacitor and the choke tuning to series resonence I observed a 90 degrees phase shift over the choke. So I believe the term RF choke is misleading. I would call it an inductor. I used 47 pF and 3,9 uH in series. I fed the circuit 10,7 MHz with my signal generator. I observed phase shifting increase and decrease when changing the frequency.
Regards again.
too much good explanation mam......
you are awesome at field of communication...
thanks for you time to explain and shared this.
Howdy. Otherwise good.
I don't understand the phase shifting though.
Assuming zero deviation. What brings about the +-90 degrees shift ? The coupling capacitor perhaps ? I would say the capacitor must be heavily loaded. Then the current is -90 degrees, yes.
Regards.
Beautiful intelligence...!
Thank you so much ma’am.
Well explained
Thank you so much ma'am for feedback 😊
Thanks mam... That smile at 15:08 😂
I think you are in error at the end .. you HAVE TO use a limiter on a FS discriminator because it is sensitive to amplitude and phase.. so you want to take the amplitude portion out.
After watching her next video (58), I think what she meant to say was that there isn't a built in limiter in the foster seeley circuit so the disadvantage is that you would have to put a limiter upstream, whereas in the ratio detector in the next video, it has one built in so its advantage is that it doesn't need a limiter.
Many many thnx mam
why perfect phase discriminator is not possible?
Very usefull
Nice mam👍👍👍
Thanks for your feedback and for connecting..
Stay connected for upcoming videos
nice baby
STFU