[Discuss-gnuradio] FW: HF transmitter hardware solutions

transmit or receive LED signal to control external equipment via a relay system. Maybe someone can publish a different solution. Looking forward to further discussion on the HF transmit solution question. Regards, John Petrich -Original Message- From: Ron Economos [mailto:w...@comcast.net]

[Discuss-gnuradio] RTL SDR and GRC3.7.8 problem: format error

eiver demos all run as expected. Just in time. And, I'll not throttle again against the Qt GUI block. Regards, John Petrich Ever since I updated to GRC3.7.8 none of my RTL SDR demos will run in GRC. The error messages are the same: " list contains an invalid format". Attached is the

[Discuss-gnuradio] RTL SDR and GRC3.7.8 problem: format error

etects the RTL device, and cites format errors. Are others having this problem with GRC3.7.8? I am anxious to resolve this problem because I have scheduled a GRC presentation in the near future. Regards, John Petrich RTL Qt test.grc Description: Binary data Error message.odt D

[Discuss-gnuradio] Experience with Ubuntu 15.04 and Gnuradio 3.7.8

All, I am considering updating to Ubuntu 15.04 from 14.04 and want to continue with GRC 3.7.8. Anyone with experience using new Ubuntu release and Gnuradio? Regards, John Petrich ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https

[Discuss-gnuradio] step by step command process to update GRC 3.6.3?

I apologize in advance for my ignorance about, what for me is, a new OS, Ubuntu. What is the command line sequence for updating GRC to GRC 3.6.3 after I download and unzip the .tar.gz? Thank you, John Petrich ___ Discuss-gnuradio mailing list

[Discuss-gnuradio] B-100 Simplex operation and external switch control in GRC flow graph?

What is the method for setting up the B-100 to TX & RX in a simplex arrangement instead of duplex? A flow graph system? And, what are be best ways to enable a control output for TX/RX operation? Again, via the flow graph? Thank you in advance, John Pet