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Sir cjdelphi . . . . .
If this question is relevant to the separate post with the linearly biased inverter used in the front end of an AM receiver.
All strongly received signals will come in simultaneously, moderate ones will be lost down in the din.
Even with that simplistic single tuned L-C circuit, for its tuning differentiation, the use of a high Q coil there would be desirable.
Like a powdered iron or ferrite core and using a Litz wire winding.
73's de Edd
.
Sir cjdelphi . . . . .
If this question is relevant to the separate post with the linearly biased inverter used in the front end of an AM receiver.
All strongly received signals will come in simultaneously, moderate ones will be lost down in the din.
Even with that simplistic single tuned L-C circuit, for its tuning differentiation, the use of a high Q coil there would be desirable.
Like a powdered iron or ferrite core and using a Litz wire winding.
73's de Edd
.
Nothing to do with previous threads, and i never had any intention of using that IC.... as i stated a lm386/opamp to amplify...
Either way i need to build one to find out, since i have not, i thought i'd ask... 9/10 times i'm purely doing it for educational reasons, my area is DC (power supplies), but slowly getting the hang of biasing and ac coupling... but i'm hitting the point the stuff i'm building requires radio, so i'm delving into AC
So you think i'll hear a jumble of the most powerful stations, that would be the longer wavelengths first then as they travel further...
Got it, thanks!
Either way i need to build one to find out, since i have not, i thought i'd ask... 9/10 times i'm purely doing it for educational reasons, my area is DC (power supplies), but slowly getting the hang of biasing and ac coupling... but i'm hitting the point the stuff i'm building requires radio, so i'm delving into AC
So you think i'll hear a jumble of the most powerful stations, that would be the longer wavelengths first then as they travel further...
Got it, thanks!
davenn
Moderator
if you remove the signal source ... there isn't going to be a signal to amplify, so the statement is meaningless
davenn
Moderator
yes you can put the signal from the antenna into an amplifier stage .... it's done is virtually every receiver before other stages ... misers, demodulators etc
so what is the point of this ?
what are you trying to achieve ?
davenn
Moderator
then you will need multiple tuned receiver stages and multiple demodulators else you wont hear anything
our ears cannot detect radio signals
davenn
Moderator
did you even read what I wrote ?
"the most basic radio receiver, the crystal set, because of its poor tuning selectivity is capable of demodulating overlapping signals
Have you ever built a crystal set ?"
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