Re: [USRP-users] USRP B210 TX-Issues

2018-02-13 Thread Jonathan B via USRP-users
Hi Derek, That makes sense, yeah. Thanks! 2018-02-12 23:42 GMT+01:00 Derek Kozel : > 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

Re: [USRP-users] USRP B210 TX-Issues

2018-02-12 Thread Marcus D. Leech via USRP-users
Sounds about right. Sent from my iPhone > On Feb 12, 2018, at 5:20 PM, Jonathan B 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 wo

Re: [USRP-users] USRP B210 TX-Issues

2018-02-12 Thread Derek Kozel via USRP-users
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 ali

Re: [USRP-users] USRP B210 TX-Issues

2018-02-12 Thread Jonathan B via USRP-users
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.

Re: [USRP-users] USRP B210 TX-Issues

2018-02-09 Thread Marcus D. Leech via USRP-users
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 th

Re: [USRP-users] USRP B210 TX-Issues

2018-02-09 Thread Jonathan B via USRP-users
Hi Jeff, Thanks for the response. In both cases a gain of 20dB. Best, Jonathan 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

Re: [USRP-users] USRP B210 TX-Issues

2018-02-09 Thread Jeff Long via USRP-users
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

[USRP-users] USRP B210 TX-Issues

2018-02-09 Thread Jonathan B via USRP-users
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 progra