[USRP-users] Re: Wrong Measurement Results

2023-02-22 Thread Marcus D. Leech
On 23/02/2023 02:02, henry.powell...@gmail.com wrote: I wanna make this operation in far-field so i calculated from (2D^2)/λ and made this distance almost 2meter. My horns are good at 4GHz i am working at this freq. I adjust RX and TX gain with range operator in GNU, I mean for the observatio

[USRP-users] Re: Wrong Measurement Results

2023-02-22 Thread henry . powell . xx
I wanna make this operation in far-field so i calculated from (2D^2)/λ and made this distance almost 2meter. My horns are good at 4GHz i am working at this freq. I adjust RX and TX gain with range operator in GNU, I mean for the observation I am changing gain. To see the signal, I need to make 7

[USRP-users] Re: Wrong Measurement Results

2023-02-22 Thread Marcus D. Leech
On 23/02/2023 00:54, henry.powell...@gmail.com wrote: Hello, I connected 2 Horn antennas to USRPs ports as TX and RX. I made the diagram on GNU Radio. I think diagram is okey. And I measured the coaxial cables in VNA. There is no problem. When I rotate RX antenna 45 degree in roll axis, I s

[USRP-users] Wrong Measurement Results

2023-02-22 Thread henry . powell . xx
Hello, I connected 2 Horn antennas to USRPs ports as TX and RX. I made the diagram on GNU Radio. I think diagram is okey. And I measured the coaxial cables in VNA. There is no problem. When I rotate RX antenna 45 degree in roll axis, I see 3 dB decrease and this is right. But the problem is s

[USRP-users] GNU Radio Version Update for Ettus E312

2023-02-22 Thread Wolff, Marcus
Hello, We are trying to upgrade to the newest version of GNU Radio on the Ettus E312. The manual says to use the oe-sdk shell script (https://files.ettus.com/manual/page_usrp_e3xx.html#e3xx_software_dev_sdk), but the most recent script points to use of CMake v2.8. GNU Radio v3.10 requires CMak

[USRP-users] Question about test_timed_commands.cpp

2023-02-22 Thread jmaloyan
Hello, I have a question regarding one of the uhd api examples. In “test_timed_commands.cpp”, there is a comment that says the following for rx streaming… `// use a timed command to start a stream at a specific time` `// this is not the right way start streaming at time x,` `// but it should