Very informative and love the way all the information is broken down for us to understand…
@HB9BLA Жыл бұрын
Glad it was helpful!
@charleswebb50222 жыл бұрын
Enjoying this series. Learning a lot. Thanks
@HB9BLA2 жыл бұрын
Glad you enjoy it!
@matambale2 жыл бұрын
Good to see the CD4046 (early 1970s vintage, I think) is still put to use!
@HB9BLA2 жыл бұрын
These functions probably never die!
@santorcuato2 жыл бұрын
Such a PLL master class... Thanks Andreas.
@HB9BLA2 жыл бұрын
PLL is a very important thing, I think...
@dufflepod2 жыл бұрын
Great series.
@HB9BLA2 жыл бұрын
Thank you!
@maximus68842 жыл бұрын
A clear video indeed. Thanks for breaking down the details for us the lazy.
@HB9BLA2 жыл бұрын
Glad it was helpful!
@TokkanFX2 жыл бұрын
Nice, a good simple explanation for the uninitiated.
@HB9BLA2 жыл бұрын
Glad you think so!
@lesourire5112 жыл бұрын
Thanks so much for this info
@HB9BLA2 жыл бұрын
You are welcome!
@aimeiz12 жыл бұрын
Hello. Thank You for this nice video. Good explanation and interesting also for ones already active on QO-100. 73!
@HB9BLA2 жыл бұрын
You are welcome! Maybe I once make a QO-100 meeting with some viewers...
@PhG19612 жыл бұрын
Waw, cool stuff ! I always loved the CD4xxx series, so much fun to work with !
@HB9BLA2 жыл бұрын
True. They still are available.
@phillipneal81942 жыл бұрын
Very good explanation of PLLs. Thank you.
@HB9BLA2 жыл бұрын
Glad you liked it
@chrisv.78662 жыл бұрын
What always amazed me (and I never really understood) about a PLL is how both frequencies at the comparator get in phase-sync. The vco can adjust frequency as much as it wants, if it is not in sync with the clock of the local oscillator, the comparator will always see a difference and the loop will never "lock". Cool concept though. My first encounters with it date from over 40years ago when I was tinkering with my CB transceiver (before I got my ham license)
@HB9BLA2 жыл бұрын
The VOC always changes it’s frequency if not locked. Otherwise it would be as you write.
@forextraderradioman2 жыл бұрын
Thank you! vy73, Dietmar, DL4HAO :)
@HB9BLA2 жыл бұрын
You are welcome! 73
@chuxxsss2 жыл бұрын
Morning Andreas, I hope you are well, mate. I loved fixing PLL s in the day with audio noise.
@HB9BLA2 жыл бұрын
I am ok. Winter goes away and spring comes here...
@chuxxsss2 жыл бұрын
@HB9BLA Wireless Autumn is on it way here. Time for a glass house, mate. Gold hunting tomorrow.
@shakerileiwat43412 жыл бұрын
Very useful information Thank you ♥
@HB9BLA2 жыл бұрын
Welcome 😊
@volkersch10832 жыл бұрын
Sehr schönes Video - vor allem die PLL Erklärung. Bin bereits QRV per QO-100 ein tolles Projekt wie ich finde. Gruß auf Franken - DG5NDK
@HB9BLA2 жыл бұрын
Ich finde ebenfalls dass wir extrem privilegiert sind ein so teures "Werkzeug" zu benutzen.
@dave_dennis2 жыл бұрын
I sure wish the footprint of this satellite was viewable from North America. Andreas, I would love a deep dive on PLL design sometime. I’ve made them work but only through trial and error. I want to know the math behind calculating the corner frequency of the loop filter.
@HB9BLA2 жыл бұрын
You maybe find a more specialized channel for the PLL topic. I do not plan to cover it here. And maybe A satellite operator has mercy with you and gives you access to a spare transponder, too.
@zyghom2 жыл бұрын
I am here sir! ;)
@HB9BLA2 жыл бұрын
Thanks for coming!
@radioamateurjz Жыл бұрын
The Ham Radio with the Swiss Accent rocks! Very interesting. Do you know any good online electronics course? To get more deeply into the theories behind this kind of circuits.
@HB9BLA Жыл бұрын
Unfortunately, I do not know such a course. I usually select a project to learn
@radioamateurjz Жыл бұрын
@@HB9BLA Thanks for the answer. Yes, that way is the best. 73!
@catalinalb17222 жыл бұрын
Hello Andreas, dose it matter if I supply 12v from a Clean Battery or from a switching power supply? Thank you & 73!
@HB9BLA2 жыл бұрын
If your power supply is clean, it does not matter. I use this test to find out if my power supplies are clean: Compare it with a battery. I once made a video about cheap power supplies on my first channel. Maybe I cross-post it here.
@DAVIDGREGORYKERR Жыл бұрын
What about building the receive part of a ZERO IF transceiver and use a Raspberry Pi IV to demodulate AM and FM signals, if you only want FM then what about getting an old CYBERNET 928 CB transceiver
@HB9BLA Жыл бұрын
We do SSB on the QO-100 because it is more efficient.
@phillipneal81942 жыл бұрын
Are there LNBs for the HF (Amateur) bands ?
@Richardincancale2 жыл бұрын
They aren’t needed because HF = 3-30 MHz and can be received directly by a low cost SDR, eg RTL-SDR for a few dollars.
@HB9BLA2 жыл бұрын
And on the lower bands we often need attenuators rather than amplifiers because of strong signals...
@kittony712 жыл бұрын
show the connection from lnb to sdr receiver
@HB9BLA2 жыл бұрын
Just a coax cable. with a Bias-T to feed the 12 volts for the LNB