September 2022 Blog Posts (7)

Key CW on ur RIG REMOTELY by pi, Carla, JackTrip, Recri Keyer, Zamgate, glame & a sinewave generator

pi2b is really too weak for this kind of work... however, pi2b is tested anyway to see how it would perform under the stress.

- a pi4b does quite well at this though, using the same setup....

once setup , CARLA is able to save not only all the APPs and their positions, but also the wires that connect…

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Added by Chuck aa0hw on September 29, 2022 at 8:49am — 5 Comments

Exponential CW shaped notes, demo from QRS to QRQ, Exponential envelope created by the Polyphone APP

https://www.polyphone-soundfonts.com/

to send MIDI NOTES to the SF2 player, CARLA's own SF2 player, a midi cw output is needed....

and provided by RECRI KEYER in this example…

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Added by Chuck aa0hw on September 22, 2022 at 9:13am — 3 Comments

Send QRQ CW Midi NOTE ON//NOTE OFF messages over iP using Gstreamer's ALSAMiDiSRC and FLUIDdec elements

TEST sending CW MiDi over iP using Gstreamer from 20 wpm to over 100 wpm

create a single SINE WAVE or a single CW AUDIO NOTE using Audacity save as a WAVE FILE...

import into Polyphone Soundfont Editer…

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Added by Chuck aa0hw on September 21, 2022 at 10:16am — 1 Comment

DIY CW audio RX RIT control with tracking CW audio bandpass filter by HiLBERT CELL & LO-MIXER MODULE

this is a REMOTE RIG OPERATIONs setup for CW via AFCW mode for keying the RIG over IP on the LAN using Gstreamer AUDIO over IP scripts... laptop to a raspberry pi2b interface...

the RIT SETUP uses 3 SDR MODULES from RECRI KEYER in this order:

RX over IP STREAM to

"HILBERT CELL"…

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Added by Chuck aa0hw on September 13, 2022 at 1:56pm — No Comments

Python APP for a VLF 12Khz AM modulated Transmitter & Receiver - VOICE & CW over iP - Live DEMO

using a modified PYTHON SCRIPT from:

https://brettviren.github.io/pygst-tutorial-org/pygst-tutorial.html

a VLF 12Khz AM Transmitter & Receiver is constructed creating a 4 CHANNEL VLF RF Over IP TX & RX…

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Added by Chuck aa0hw on September 6, 2022 at 12:41pm — 2 Comments

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