On 27/02/2023 10:27, oiu13q2t5pibtq1--- via USRP-users wrote:
I have 2 B210 with VERT2450s (i.e. 2.4/5 GHz antennae) and compiled
uhd from source
|[INFO] [UHD] linux; Clang version 14.0.0 ; Boost_107400;
UHD_4.4.0.0-0-g5fac246b|
Following the USRP Guide
https://kb.ettus.com/Verifying_the_Operation_of_the_USRP_Using_UHD_and_GNU_Radio,
I checked:
|/usr/lib/uhd/examples/benchmark_rate --rx_rate 10e6 --tx_rate 10e6|
on both SDRs
which yielded
|Num received samples: 100243473|
|Num dropped samples: 0|
|Num overruns detected: 0|
|Num transmitted samples: 100064040|
Now I tried to receive signals generated the other via
SDR1: RX:
|/usr/lib/uhd/examples/rx_ascii_art_dft --freq 4996e6 --rate 5e6
--gain 20 --bw 5e6 --ref-lvl -30|
SDR2: TX:
|/usr/lib/uhd/examples/tx_waveforms --freq 4996e6 --rate 5e6 --gain 10|
I would expect a peak somewhere around 4996 MHz; I only see noise
which is not affected by the |tx_waveforms |call
The SDRs are in the same room.
The TX LED is red, the RX2 LED is green, indicating that they are
indeed sending and receiving
Am I missing something important here?!
How can I solve that basic task?
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The total gain-control range on both TX and RX is over 70dB. The
bottom end of that range isn't terribly useful in
most practical applications.
Turn your TX gain up to about 50 and your RX gain up to about 50 and
try again.
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