April 2018 Blog Posts (4)

QRQ'n CW on HF remotely in the QTH with a LAPTOP to a RASPBERRY PI - advanced setup for CW Keyboard, Paddles, & Straight Key

this is an advanced setup for remote control of an ELECRAFT K3S over ip on the LOCAL AREA NETWORK - a LINUX LAPTOP to the Rig's Raspberry PI's computer

AUDIO OVER IP: over the local LAN with routers and switches :

zita-njbridge is used to provide audio for RECEIVE AND TRANSMIT…

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Added by Chuck aa0hw on April 20, 2018 at 11:34am — No Comments

QRQ CW in AFCW mode - test transmit 1 watt and observe audio quality and spectrum purity on webSDR

short test by transmitting CW at 1 watt on 10 meters - going to a websdr rcvr to listen and record the sound - look for how well using AFCW MODE on an ELECRAFT K3S performs for its spectral purity and waveform preservation of a well constructed raised cosine edged CW NOTE made by the ZamGate CW RE-Keyer - transmitted by an Elecraft K3S using a…

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Added by Chuck aa0hw on April 18, 2018 at 9:25am — No Comments

QRQ CW over 100 wpm - 121 wpm copy test - 700 hertz tone VERSES 821 hertz tone - which is better ?

brief demo of having 2 FLdigi(s) sending the same text file at 121 wpm...one FLdigi sending at the pitch of 821 hertz, the other sending at 700 hertz

there are a few QRQ CW OPS that can copy over 100 wpm that have reported in over the past years, stating that they prefer a higher CW PITCH when copying CW above 100 wpm...this short…

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Added by Chuck aa0hw on April 13, 2018 at 7:36am — No Comments

Using FLdigi to adjust TRIGGER MIDI MONO for perfect QRQ CW AUDIO input to QRQ CW MIDI NOTE DATA output - at 200 wpm

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ADJUSTING TRIGGER MIDI MONO for extremely accurate AUDIO VOLUME input to CW MIDI DATA NOTE output conversion

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FLdigi will transmit a dit at 200 wpm(1khz [green]square wave using FLdigi's…

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Added by Chuck aa0hw on April 11, 2018 at 8:30am — No Comments

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