What are you using for gain settings?
On 02/09/2018 01:09 PM, Jonathan B via USRP-users wrote:
Hi everyone,
I seem to be having issues with the B210 transmitting at an incredibly
low power.
I seem to be getting a 60db difference at the receiver (spectrum
analyzer) between the B210 and N210 with perfectly identically
configured transmissions using the simple uhd "tx_waveform" example program.
Has anyone experienced such an issue. I have two B210s that seem to be
acting the same way.
Thanks in advance.
Best Regards,
Jonathan
-----------------------------------------
Probe Output of the B210:
-- Loading firmware image: C:\Program
Files\GNURadio-3.7\share\uhd\images\usrp_b200_fw.hex...
-- Detected Device: B210
-- Loading FPGA image: C:\Program
Files\GNURadio-3.7\share\uhd\images\usrp_b210_fpga.bin... done
-- Operating over USB 3.
-- Detecting internal GPSDO.... No GPSDO found
-- Initialize CODEC control...
-- Initialize Radio control...
-- Performing register loopback test... pass
-- Performing register loopback test... pass
-- Performing CODEC loopback test... pass
-- Performing CODEC loopback test... pass
-- Setting master clock rate selection to 'automatic'.
-- Asking for clock rate 16.000000 MHz...
-- Actually got clock rate 16.000000 MHz.
-- Performing timer loopback test... pass
-- Performing timer loopback test... pass
_____________________________________________________
/
| Device: B-Series Device
| _____________________________________________________
| /
| | Mboard: B210
| | revision: 4
| | product: 2
| | serial: 3113A66
| | name: MyB210
| | FW Version: 8.0
| | FPGA Version: 14.0
| |
| | Time sources: none, internal, external, gpsdo
| | Clock sources: internal, external, gpsdo
| | Sensors: ref_locked
| | _____________________________________________________
| | /
| | | RX DSP: 0
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | RX DSP: 1
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | RX Dboard: A
| | | _____________________________________________________
| | | /
| | | | RX Frontend: A
| | | | Name: FE-RX2
| | | | Antennas: TX/RX, RX2
| | | | Sensors: temp, rssi, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | RX Frontend: B
| | | | Name: FE-RX1
| | | | Antennas: TX/RX, RX2
| | | | Sensors: temp, rssi, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | RX Codec: A
| | | | Name: B210 RX dual ADC
| | | | Gain Elements: None
| | _____________________________________________________
| | /
| | | TX DSP: 0
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | TX DSP: 1
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | TX Dboard: A
| | | _____________________________________________________
| | | /
| | | | TX Frontend: A
| | | | Name: FE-TX2
| | | | Antennas: TX/RX
| | | | Sensors: temp, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 89.8 step 0.3 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | TX Frontend: B
| | | | Name: FE-TX1
| | | | Antennas: TX/RX
| | | | Sensors: temp, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 89.8 step 0.3 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | TX Codec: A
| | | | Name: B210 TX dual DAC
| | | | Gain Elements: None
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