On 08 Jan 2013 13:49, José María Valencia wrote:
> Ok, I'm aware
about the damage as a result of direct connection,
>
> But now the
question is How to recovery the m(t) signal in spite of noise? That is,
finally the I and Q in rx should be equal to I and Q in tx.
The values
of I/Q at the re
Ok, Im aware about the damage as a result of direct connection,
But now the question is How to recovery the m(t) signal in spite of noise?
That is, finally the I and Q in rx should be equal to I and Q in tx.
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On 08 Jan 2013 08:48, José María Valencia wrote:
> Ok, I
understand your example, but before work with complex examples I want to
"experiment" with a simple circuit as a simple DSB AM modulator based on
the "theory" that I wrote in the past mail, I'm aware about realistic
situations like noise
Ok, I understand your example, but before work with complex examples I want
to experiment with a simple circuit as a simple DSB AM modulator based on
the theory that I wrote in the past mail, Im aware about realistic
situations like noise and other factors and it was the reason I connected
di
I will write my theory about usrp working and some math in Am modulation,
because I want to be sure before continuing:
If I want to modulate in DSB amplitude a carrier of saying 1GHz ,with a m(t)
signal (in this case a simple 1kHz cosine tone) the carrier is sourcing by
USRP module, and I have t
Marcus, can you send me the Am transmitter as image, my gnu radio cant load
the source some blocks.
Thanks.
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Marcus thanks foryourhelp.
I was trying with 2 antennas(WA5VJB)varyingtheusrp tx gain but the
results are the same(In this momentIdon'thave anattenuator).I was
reading a past mailfrom this list(March 252012) and there is a similar
problemthatI have: the q component is not zero, I send a mail t
Marcus thanks for your help.
I was trying with 2 antennas (WA5VJB) varying the usrp tx gain but the
results are the same (In this moment I dont have an attenuator). I was
reading a past mail from this list (March 25 2012) and there is a similar
problem that I have: the q component is not zero, I
Ok, I will try with an attenuator, but Isuppose I can work too(while I
getan attenuator)with two antennassetting the proper gain for each
one, but now I have the nextquestion: Independently if Iwork with
attenuator or antennas,whythe gain affects the spectrumand shape of
the received signal?
Ok, I will try with an attenuator, but I suppose I can work too(while I get
an attenuator) with two antennas setting the proper gain for each one, but
now I have the next question: Independently if I work with attenuator or
antennas, why the gain affects the spectrum and shape of the received
signa
On 01/04/2013 08:24 PM, José María Valencia wrote:
Hi, I want to transmitand receivea1kHz cosinetoneusing dsb am
modulation and usrp1 with2wbx dbs,I have connectedfromtx/rx output
wbx-ato rx2 inputwbx-b with a 50ohmsma cable, I'mexpectingin scope
sinkthe cosine tone with 1KHz butI have anoth
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