Hi,
The ADALM-Pluto uses the AD9363 / AD9364 and is a member of the AD9631 family.
This has AGC which is set via the in_voltage0_gain_control_mode parameter and
works very well indeed, making the cheap and cheerful Pluto a very usable SDR.
Simon Brown, G4ELI
https://www.sdr-radio.com
gain
level.
Regards,
Kyeong Su Shin
보낸 사람: Marcus D. Leech via USRP-users 대신
USRP-users
보낸 날짜: 2020년 2월 21일 금요일 오전 4:07
받는 사람: Alvaro Pendas
참조: USRP-users@lists.ettus.com
제목: Re: [USRP-users] GNU Radio UHD Blocks Resolution
On 02/20/2020 01:54 PM, Alvaro P
On 02/20/2020 01:54 PM, Alvaro Pendas wrote:
I get what you mean, but maybe I did not explain myself correctly.
Let's forget about GNU Radio and focus on the ADC. The ADC resolution
is 12 bits, so it has 4096 digital levels. The question here is, does
the usrp adapts those levels to the signal
I get what you mean, but maybe I did not explain myself correctly. Let's
forget about GNU Radio and focus on the ADC. The ADC resolution is 12 bits,
so it has 4096 digital levels. The question here is, does the usrp adapts
those levels to the signal it is receiving at each moment? If that
adaptatio
On 02/20/2020 11:38 AM, Alvaro Pendas wrote:
However, the way I see it, this represents a problem in the receiving
part. Let me put it this way: the max output of the ADC is 1, and that
corresponds with the max input. That max input would represent the
case when you receive a high power signal
However, the way I see it, this represents a problem in the receiving part.
Let me put it this way: the max output of the ADC is 1, and that
corresponds with the max input. That max input would represent the case
when you receive a high power signal and you set your drive amplifier next
to its max.
Indeed. You’d have to use an external calibration source at several places over
your parameter space (frequency gain sample rate)
Sent from my iPhone
> On Feb 19, 2020, at 1:54 PM, Alvaro Pendas wrote:
>
>
> Marcus thank your for your answer,
>
> First of all, you are right, the range is -1
Marcus thank your for your answer,
First of all, you are right, the range is -1 to 1 (instead of 0 to 1 as I
said before). So, for example, in the receiving part, the values you get
out of the UHD Source have a linear relationship with the voltage of the
analog signal, but I understand there is no
On 02/19/2020 12:01 PM, Alvaro Pendas via USRP-users wrote:
Hello,
I am using GNU Radio and the USRP B200. I have noticed that for the
GNU block UHD: USRP Sink, the values you pass to the block must be in
the range 0 to 1. I guess that means if you do not want to lose
resolution you must ensur
Hello,
I am using GNU Radio and the USRP B200. I have noticed that for the GNU
block UHD: USRP Sink, the values you pass to the block must be in the range
0 to 1. I guess that means if you do not want to lose resolution you must
ensure that you use the full range, that is to say, your minimum is 0
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