Re: [USRP-users] python receiver problem

2017-09-05 Thread Marcus Müller via USRP-users
Hi Ivan, it's not the most common mode; why do you want to use it? Anyway, your way of calling recv() is wrong, which has little to do with the STREAM_MODE you're using. Just spawn of a separate thread that calls recv() as often as necessary in an uniterrupted loop. Best regards, Marcus On 04.0

Re: [USRP-users] How to connect single USRP N200 with two PCs?

2017-09-05 Thread Marcus Müller via USRP-users
It's nice that TCP works for your application, but it's still a deprecated block for multiple technical reasons and I explicitly recommend NOT using it. So, use it if you want to, but no-one will be able to help you with that. The block is really bad. If you need a better selector alternative, jus

Re: [USRP-users] USRP-users Digest, Vol 85, Issue 4

2017-09-05 Thread Jithesh Joshy via USRP-users
Hello, I wan to relay signals back and forth between two N210 without sending the data to the Host pic to avoid delays. I understand that this requires modifying the fpga. Is that correct ? Where to start ? Any help would be highly appreciated > On 4 Sep 2017, at 17:00, usrp-users-requ...@lis

Re: [USRP-users] Rotating constellations and varying LOs with USRP B210 + Board Mounted GPSDO

2017-09-05 Thread George Sklivanitis via USRP-users
Hi Marcus, Things improve when I am using external REF and PPS from an octoclock module. Thanks, George On Thu, Aug 31, 2017 at 10:08 PM, George Sklivanitis < george.sklivani...@gmail.com> wrote: > Hi everyone, > > Has anyone noticed unstable LOs or carrier frequency offsets when using > USRP

[USRP-users] Is it safe to plug in UBX-160 on USRP N200/N210 (for intentional aliasing)?

2017-09-05 Thread Kyeong Su Shin via USRP-users
Hello all, Would it be safe to plug in a UBX-160 daughterboard to a USRP N200 or N210, if I "want" aliasing? I want to intentionally cause aliasing to the collected data for some experiments, and I think this is a valid option, but I am worried if there are any UBX-160 features that may cause pro

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Ken M Erney via USRP-users
Got a quick question regarding the LFTX board for the N210. I have an N210 configured with one LFTX and one LFRX board. Each of those boards have two connectors (i.e. TX-A, TX-B and RX-A, RX-B). I only have TX-A and RX-A connected out to the N210 bulkhead connectors. Do I need a terminator o

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Ken M Erney via USRP-users
Here is another question for the RF folks out there. I have a device that is sending a signal over a coax cable at about 8 MHz while receiving a signal over the same cable at around 3 MHz (both HF). I have an N210 with both LFRX and LFTX boards installed. Attached to the coax is a filter and

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Humphries, James R. via USRP-users
Hey Ken, Are you thinking of something like a circulator? https://www.microwaves101.com/encyclopedias/circulators -Trip -Original Message- From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of Ken M Erney via USRP-users Sent: Tuesday, September 5, 2017 4:47 PM To:

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Humphries, James R. via USRP-users
And I guess the other question would be if there is a circulator that you can buy at that low of frequency. I'm not sure that I have seen one, but never actually looked. -Trip -Original Message- From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of Humphries, James

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Marcus D. Leech via USRP-users
On 09/05/2017 05:07 PM, Humphries, James R. via USRP-users wrote: And I guess the other question would be if there is a circulator that you can buy at that low of frequency. I'm not sure that I have seen one, but never actually looked. -Trip -Original Message- From: USRP-users [mailt

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Ken M Erney via USRP-users
Marcus, Thanks for the advice on the filter pairs. This would seem to be a quick and cheap way to solve this issue. Unfortunately, this is a bit above my understanding. I forgot to mention I am a software guy…which will probably explain a lot to you regarding my question…lol. I will pass th

Re: [USRP-users] 50 Ohm terminator on LFTX board

2017-09-05 Thread Ken M Erney via USRP-users
Trip, The circulator idea is interesting. Thanks for the link. I did not understand the difference between a diplexer and a duplexer. The link you sent has a great explanation of this. It would seem that a duplexor is what I want, but I could not tell if a duplexer can be used in full duple

[USRP-users] GPIO connector for B205mini

2017-09-05 Thread liu Jong via USRP-users
Hi all, The GPIO connector for USRP B205mini is on sale?where can we find it? thank you. best regards Jon ___ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com