Hi Derek,

That makes sense, yeah. Thanks!

2018-02-12 23:42 GMT+01:00 Derek Kozel <derek.ko...@ettus.com>:

> Hello Jonathan,
>
> The gain setting in the USRPs are indexed from minimum gain. On most this
> means a gain of 0 is actually an attenuation of the signal. The N210's gain
> range is based on what amplifiers and attenuators are on the daughterboard
> that is installed. The ranges aren't calibrated to be aligned across
> different USRP products so what you are seeing is completely normal.
>
> On Feb 12, 2018 10:21 PM, "Jonathan B via USRP-users" <
> usrp-users@lists.ettus.com> wrote:
>
> Hi Marcus,
>
> Thanks! Didn't realise there was a larger range for the B2xx family. At
> 60dB it seems to perform as well as 20dB on the N210. Is that normal?
>
> But either way - something I can work with. Thanks.
>
>
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>
> 2018-02-09 20:53 GMT+01:00 Marcus D. Leech via USRP-users <
> usrp-users@lists.ettus.com>:
>
>> On 02/09/2018 02:48 PM, Jonathan B via USRP-users wrote:
>>
>> Hi Jeff,
>>
>> Thanks for the response.
>>
>> In both cases a gain of 20dB.
>>
>> Best,
>> Jonathan
>>
>> The total gain-control range on the B2xx family is larger (80dB) than on
>> the cards used on X3xxx, N2xx, etc (typically 30.5dB)
>>
>> Try larger gain values on the B210, like 40 or 50dB.
>>
>>
>>
>> On Feb 9, 2018 8:23 PM, "Jeff Long via USRP-users" <
>> usrp-users@lists.ettus.com> wrote:
>>
>>> 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\i
>>>> mages\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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