Re: [USRP-users] B200 Noise Figure Meter

2018-02-04 Thread David Bengtson via USRP-users
A 3dB attenuation will really improve the reflection coefficient. Using this calculator http://www.rfcafe.com/references/calculators/vswr-return-loss-conversion-calculator.htm you can see that a 3 dB attenuation will improve a 3:1 VSWR to 1.7:2, or a 6 dB return loss to 12 dB, so you've really impr

Re: [USRP-users] USRP N310 Receiver Noise Floor, Sensitivity

2018-05-13 Thread David Bengtson via USRP-users
The Receiver Noise figure should include sampling noise and ADC ENOB. Is that a free space path loss? You don't have any design margin for fades/blockages etc, so an External LNA might be a good idea. 3.6 dB NF isn't particularly low for a LNA, but it will help. On Sun, May 13, 2018 at 3:49 AM, Zh

[USRP-users] SDR Internship

2018-05-13 Thread David Bengtson via USRP-users
I'm not a Boeing Employee, but I came across this and though some folks on the mailing list might be interested. http://jobs.jobvite.com/liquid-robotics-inc/job/oHo76fw2 Dave ___ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.co

Re: [USRP-users] USRP N310 Receiver Noise Floor, Sensitivity

2018-05-13 Thread David Bengtson via USRP-users
t of Computer Science & Engineering, > University of Nebraska-Lincoln > Office Hour: WF 9:30-10:00am, Avery Hall 12, > Suite 117, Schorr Center, > Lincoln, Nebraska 68588-0115 > > > On Sun, May 13, 2018 at 2:36 PM, Marcus D. Leech via USRP-users > wrote: >> >&

Re: [USRP-users] 2021 IEEE Aerospace Conference

2020-07-04 Thread David Bengtson via USRP-users
2020 Program https://ieee-aess.org/conference/2020-ieee-aerospace-conference-aeroconf 2019 program https://ieee-aess.org/conference/2019-ieee-aerospace-conference 2018 program https://ieee-aess.org/conference/2018-ieee-aerospace-conference Perhaps this is sufficient? On Thu, Jun 25, 2020 at 6:35

[USRP-users] N310 Band Pass filter frequencies

2018-12-21 Thread David Bengtson via USRP-users
Hi- The N310 receiver has a set of switchable bandpass filters on the receiver inputs. I've looked through the N310 knowledge base, and haven't come across any documentation on these filter bandwidths. Is there a list of the nominal passband filter bandwidths for the N310 receiver filter banks som

Re: [USRP-users] N310 Band Pass filter frequencies

2018-12-21 Thread David Bengtson via USRP-users
if there's any untoward interaction between the highpass/lowpass filter structures used to derive the bandpass characteristics Dave On Fri, Dec 21, 2018 at 10:10 AM Brian Padalino wrote: > > On Fri, Dec 21, 2018 at 7:51 AM David Bengtson via USRP-users > wrote: >> >>