Here's a complete AM transmitter flow graph for GNU Radio 3.7 and Ettus
B2xx. It uses offset tuning to eliminate the DC offset on the
transmitted carrier. It can also send DSB. The test file is available here:
http://www.w6rz.net/ssbaudio.wav
Ron
On 6/24/20 08:01, Barry Duggan via USRP-users
Hi Ernest,
Look at https://wiki.gnuradio.org/index.php/File:USRP_AM_xmt_fg.png
You will need to adjust your RF frequency.
Attached is the grc file for it, but it is for 3.8. If you need to look
at any of the parameters, use your editor for my grc file to find them.
If you do not need the exac
Ernest,
I recommend working through the
https://wiki.gnuradio.org/index.php/Tutorials, and then when you get to
the
https://wiki.gnuradio.org/index.php/Simulation_example:_AM_transmitter_and_receiver
you could adapt it to using your USRP in place of the ZMQ sockets.
If you need additional h
Yes. I’ve already suggested offset tuning to deal with DC offset removal.
Sent from my iPhone
> On Jun 23, 2020, at 12:21 PM, Brian Padalino wrote:
>
>
>> On Tue, Jun 23, 2020 at 12:08 PM Marcus D Leech via USRP-users
>> wrote:
>
>> Phase offset as measured against what, and how would th
On Tue, Jun 23, 2020 at 12:08 PM Marcus D Leech via USRP-users <
usrp-users@lists.ettus.com> wrote:
> Phase offset as measured against what, and how would that matter for a
> not-phase-sensitive modulation?
>
Maybe the 9361 on the B205 could be attacking the AM as an adaptive DC
offset correction
Phase offset as measured against what, and how would that matter for a
not-phase-sensitive modulation?
Sent from my iPhone
> On Jun 22, 2020, at 11:39 PM, Kevin Hung wrote:
>
>
> Just my guess. The rx IQ samples are rotated by a constant phase offset.
>
>> On Mon, Jun 22, 2020 at 9:53 PM
Just my guess. The rx IQ samples are rotated by a constant phase offset.
On Mon, Jun 22, 2020 at 9:53 PM Marcus D. Leech via USRP-users <
usrp-users@lists.ettus.com> wrote:
> On 06/22/2020 09:14 PM, Ernest Poletaev via USRP-users wrote:
>
> Hello everyone,
>
> I'm new to SDR and trying to impleme
On 06/22/2020 09:14 PM, Ernest Poletaev via USRP-users wrote:
Hello everyone,
I'm new to SDR and trying to implement transmission with AM Modulation
using uhd library with B205mini board.
Currently I have following procedure:
Set RX and TX parameters for RF frequency, channel 0
Set sampling
Hello everyone,
I'm new to SDR and trying to implement transmission with AM Modulation using
uhd library with B205mini board.
Currently I have following procedure:
Set RX and TX parameters for RF frequency, channel 0
Set sampling frequency to 1M samples per second
Set RX and TX gain
Receiving a
