Hm, I can see that.
I've only observed the behaviour Damon describes with a single embedded system,
and there
was no solution: It was the SBC's vendor firmware that simply waited for that
USB bulk
device to do something. That's not standard, it was not fixable, and it's
honestly nothing
the B20
Hi Marcus and thank you,
here is the gnuradio flow-graph and a diagram with the physical setup.
cheers,
Arjan
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Hi Arjan,
I noticed two mistakes in the graph. First, you have 2 radios each with 1
channel. In your case with only 1 daughterboard populated, I think it
should be 1 radio block with 2 channels. (A radio block is roughly
comparable to a daughterboard). Second, you have the RX antenna set to
"Rx1"
On 04/29/2021 08:41 AM, Rob Kossler wrote:
Hi Arjan,
I noticed two mistakes in the graph. First, you have 2 radios each
with 1 channel. In your case with only 1 daughterboard populated, I
think it should be 1 radio block with 2 channels. (A radio block is
roughly comparable to a daughterboard
Yes, even the names at the physical SMA ports at the front end of the x300 are
named TX/RX and RX2 (for each of the doughterboards viz. RFA and RFB):
https://www.ettus.com/wp-content/uploads/2018/11/X300_Front-Large_2-min.jpg
and the test/default programs that come with UHD, like *uhd_fft* for e
Ignore the printing on the front panel. It is designed for the more usual case
of a transceiver card which has a Tx/RX and RX2 input.
For TwinRx the two antenna choices are named “RX1” and “RX2”. They are routed
to the SmA on the front panel labeled as TX/RX and RX2.
Either channel on the Twi
How many rfnoc Computation Engines (CEs) are available on the N3xx radios
FPGAs? For example, i read online that the x3xx has 16 CEs.
How does the tuning speed compare between the N2xx and N3xx radios? I saw a
whitepaper a few years back that listed the max sustained hop rate of the
N210+WBX o
The N310 uses AD936x family of RF front end devices. They are not speedy to
retune.
The N320 uses a discrete LO and mixer approach and I would suspect that it’s
comparable to the WBX.
Sent from my iPhone
> On Apr 29, 2021, at 2:33 PM, Hodges, Jeff via USRP-users
> wrote:
>
>
> How man
According to the Ettus KB < https://kb.ettus.com/N320/N321#RF_Specifications
>, the N320/N321 USRPs have a tuning time of 245 microseconds ... that
offers up to around 4000 hopes per second. I have never measured this to
verify. - MLD
On Thu, Apr 29, 2021 at 4:03 PM Marcus D Leech
wrote:
> The
Regarding the computation engines, this may be a 3.15 limitation that is no
longer relevant in 4.0. If you are using 3.15, I *think* that the CE
limitation for the N310 is the same as for the X310.
On Thu, Apr 29, 2021 at 2:34 PM Hodges, Jeff via USRP-users <
usrp-users@lists.ettus.com> wrote:
>
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