USRP B200 not transmitting

[Papan]

Hi

 I'm a hardware developer who is trying to get the B200 working. Everything seemed fine until I actually connected a spectrum analyzer to the tx output to find no output when the TX led is red. Ive measured the output with both spec and oscilloscope during benchmark and tx_waveforms with this command
./tx_waveforms --freq 915e6 --rate 5e6 --gain 10 --wave-type SINE --wave-freq 915e1

I've probed the circuit board along the TX signal path up to the analog devices chip, nothing but DC-voltages. Receiveing works excellent.

Does this mean that the board output is  dead or can in be software related?

I'll paste the uhd probe output:

~ $ uhd_usrp_probe
[INFO] [UHD] linux; GNU C++ version 8.2.0; Boost_106200; UHD_3.13.0.HEAD-0-g0ddc19e5
[INFO] [B200] Detected Device: B200
[INFO] [B200] Loading FPGA image: /usr/local/share/uhd/images/usrp_b200_fpga.bin...
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Detecting internal GPSDO....
[INFO] [GPS] No GPSDO found
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
  _____________________________________________________
 /
|       Device: B-Series Device
|     _____________________________________________________
|    /
|   |       Mboard: B200
|   |   revision: 5
|   |   product: 1
|   |   serial: 3134BB7
|   |   name: MyB200
|   |   FW Version: 8.0
|   |   FPGA Version: 15.0
|   |  
|   |   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 Dboard: A
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       RX Frontend: A
|   |   |   |   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: B200 RX dual ADC
|   |   |   |   Gain Elements: None
|   |     _____________________________________________________
|   |    /
|   |   |       TX DSP: 0
|   |   |  
|   |   |   Freq range: -8.000 to 8.000 MHz
|   |     _____________________________________________________
|   |    /
|   |   |       TX Dboard: A
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Frontend: A
|   |   |   |   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 0.2 dB
|   |   |   |   Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
|   |   |   |   Connection Type: IQ
|   |   |   |   Uses LO offset: No
|   |   |     _____________________________________________________
|   |   |    /
|   |   |   |       TX Codec: A
|   |   |   |   Name: B200 TX dual DAC
|   |   |   |   Gain Elements: None

Thankful for any help regarding this

[AdeelAnwar]

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