Talk:HamRadio

Saturday 17 October 2020, 20:00 UTC
After some technical difficulties with Big Blue Button, we moved to Zoom and succeeded in doing the planned agenda:


 * Brief walk-through of Simulation example: FSK


 * Presentation of gr-RTTY-basics package

https://github.com/duggabe/gr-RTTY-basics https://github.com/duggabe/gr-webserver


 * Audio loopback demo
 * Live Over-the-Air demo

The time (20:00 UTC) proved to be too late for participants East of Greenwich, so an earlier one was scheduled for 7 November.

Saturday 7 November 16:00 UTC
The meeting followed the agenda above. There was a minor audio difficulty with the loopback, but I proceeded to present the Over-the-Air demo successfully.

View the presentation on https://www.youtube.com/watch?v=_HmbRk-UG8Q

Saturday 12 December 2020 16:00 UTC
Subject: Transmit / Receive switching and station control Presenter: Gavin Jacobs VE7GSJ Agenda:
 * Requirements for TX/RX switching
 * VE7GSJ Solution (hardware & GNURadio Companion)
 * Demo on 2m repeater

Files:
 * GRC flowgraph: [[Media:Nb-fm-voice.grc]]
 * Presentation slides: [[Media:2020DEC12.pdf]]

Thanks to Gavin for an excellent talk. It can be viewed at https://www.youtube.com/watch?v=rTp6vQk5MqE

Questions

 * The Ham Radio chat room on Matrix is available for follow-up and continuing discussion.
 * server: https://chat.gnuradio.org
 * or via the Homeserver in a matrix app: gnuradio.matrix.ungleich.cloud
 * room: #HamRadio:gnuradio.org


 * Questions about meetings also can be sent to "duggabe@dcsmail.net"

Suggested topics

 * Transmit hardware to operate below 50 MHz.
 * Final Determination letter from the US State Department concerning the amateur radio satellite service.
 * FreeDV
 * Contact ISS
 * EME - moon bounce communications