Re: [USRP-users] Gain difference in 4 RX on N310

2020-01-01 Thread Baroch Oren via USRP-users
Hi Marcus, thank you for the reply. I've built and installed UHD using AN-445 "Building and Installing the USRP Open-Source Toolchain (UHD and GNU Radio) on Linux" instructions (https://kb.ettus.com/Building_and_Installing_the_USRP_Open-Source_Toolchain_(UHD_and_GNU_Radio

Re: [USRP-users] Gain difference in 4 RX on N310

2019-12-25 Thread Marcus D Leech via USRP-users
You won’t be able to “see” the thermal noise of the terminator unless the gain is turned all the way up. Otherwise it’s below the noise floor of the receiver. Sent from my iPhone > On Dec 25, 2019, at 9:19 AM, Marcus Müller via USRP-users > wrote: > > Hi Baroch, > > oh, that's interestin

Re: [USRP-users] Gain difference in 4 RX on N310

2019-12-25 Thread Marcus Müller via USRP-users
Hi Baroch, oh, that's interesting and I must admit I don't really know where to start looking into this, but let's take this top-down: How are you setting the gain, and how are you doing the capturing? My gut feeling tells me there's something in UHD not handling multi- channel gain setting right,

[USRP-users] Gain difference in 4 RX on N310

2019-12-25 Thread Baroch Oren via USRP-users
Hello. I've been capturing with N310 on 4 channels simultaneously. A strange behavioure occurs: First experiment: capturing on a single channel when all the other 3 rx channels are terminated, I get a similar captured gain on every one of the RX channels. Se