@VE6EY Hi! Could you please explain why there is multiply by 1 block between AM Demod and Audio Sink blocks? I have seen it also in digital transmissions, but still could not figure it out why.
So this may be a dumb question, but how would you connect this to a proper SDR sink? My initial thoughts would be taking Multiply->Rational Resampler(Int:25 Dec:6 Float->Complex to get a sample rate of 2M) -> SDR Sink I also wish to broadcast at 1.7MHz (empty broadcast AM freq), to see if my radio will take the signal, would it just be a matter of editing the carrier?
Is there a reason to use the block 'Add Constant' in this AM scenario? I have already seen this use on carrier signal aswell before the multiply block. But haven't really found the reason why? Thanks in advance and a happy new year.
Extremely useful! Thank you!
Excellente stuff! Thank you sir, could I ask, how have you managed to control the bandwidth?
You will notice various FIR filters in the processing chain. But in particular, the AM Demod component has a passband filter set to 10 kHz.
@VE6EY
Hi!
Could you please explain why there is multiply by 1 block between AM Demod and Audio Sink blocks?
I have seen it also in digital transmissions, but still could not figure it out why.
Hi Qalib. That's the volume control.It's controlled by the Volume slider in the display window. Cheers, John.
Awesome work.
Hi
Why i miss WX GUI in m'y GNU radio installation (on ubunto20.04.2.0)
thank you so much, can i use this for my assignment?
Sorry for late response. Yes.
So this may be a dumb question, but how would you connect this to a proper SDR sink? My initial thoughts would be taking Multiply->Rational Resampler(Int:25 Dec:6 Float->Complex to get a sample rate of 2M) -> SDR Sink
I also wish to broadcast at 1.7MHz (empty broadcast AM freq), to see if my radio will take the signal, would it just be a matter of editing the carrier?
hi, do you have the diagram in gnuradio with DSSS modulation? Gretring frim colombia
Is there a reason to use the block 'Add Constant' in this AM scenario? I have already seen this use on carrier signal aswell before the multiply block. But haven't really found the reason why?
Thanks in advance and a happy new year.
Hi Andre. You add a constant to make sure the modulation never drops below zero, i.e. remains positive.
@@VE6EY Thank you!
i have problem with lables name (SC , TC) is not defined & notbook lables are not defined also ??
Hi Sohila. SC=suppressed carrier TC=transmitted carrier.
How I find files in the "WAV File Source" ?
I did not post them. Just record some yourself.
Can you plz provide me with the GRC file because i am unable to locate it on the website that you have posted in description.
Download from here: play.fallows.ca/wp/radio/software-defined-radio/gnuradio-amplitude-modulation-receiver/
@@VE6EY Sorry sir, do you have another link? because I can't access it. Thank you in advance
@@elyaserbenguno5464 I just tested the link and it works.
Ups sorry , now i can
do you know how to make an am stereo? i already have the TX and the RX
Sorry, no cris. Should be possible as GNR makes it easy to work with quadrature signals (QAM etc.)
could you make it more complicated
There is always a bigger fish