All Blog Posts Tagged 'FLdigi' (9)

the typical modern RIG, usually shapes its CW TRANSMIT waveform as a raised cosine edged cw note with a Rise and Fall time between 5 and 10 milliseconds....For this test a 7ms rise and fall time of a perfect raised cosine cw note created by FLdigi is used to represent the "modern rigs" and tested against another software CW KEYER called the ZamGate…

VB-AUDIO's Spectralissime is working perfectly on LINUX LUBUNTU 16.04 using W.I.N.E and the WINEasio driver for JackRouter.  This is a windows program and this demo would also apply to a windows install of this excellent software audio spectrum analyzer.  This video below,  is a brief demo showing the spectrum readout of FLdigi sending cw at 40 wpm and varying the rise/fall time and toggling on & off - FLdigi's own unique and powerful CW bandpass filter…

This is a QRQ CW COPY TEST - to see how close I could match the great sound of FLdigi's QRQ CW with a custom cw sine wave oscillator - built up by using AMsynth and the GLAME BANDPASS FILTER...NOTE: since you can not externally KEY FLdigi... i had to search for another way to be able to key CW manually/externally - from PADDLES, KEYBOARD or…

this video LIVE demo is using a Raspberry PI 2b and FLdigi together as a CW KEYER, remote rig control AND a logging book...

- FLdigi does it ALL !

- A BIG THANK YOU TO W1HKJ !!

- this setup does not tax the pi's cpu and runs perfectly

the first part of the video demo's receiving a station on 40 meters and changing some of…

- IAMBIC and STRAIGHT KEY from:https://github.com/recri/keyer

- cw keyboard is from FLdigi : http://www.w1hkj.com/

once built and compiled, the Recri Keyer software will allow both STRAIGHT KEY and IAMBIC KEYER at the same time via a USB MIDI DEVICE(s) that…

http://www.qsotoday.com/podcasts/w1hkj

EPISODE 044 - DAVID FREESE - W1HKJ…

The latest version of FLdigi, 3.22.10, now has its own, cw audio bandpass filter,

to help filter out any qrq cw edge noises made in TRANSMIT MODE.…

This video demonstrates 5 different cw keyboard programs - just an overview of each one.( there are other videos that will go over the details of each one) These 5 cw keyboard programs were selected because they have adjustable cw timing parameters for weight, dot/dash ratio, rise/fall time, compensation etc...

FOR FURTHER INFORMATION ON THESE KEYERs SEE:

1.…

The creator of FLdigi, Dave Freese, w1hkj,

was recently interviewed on the LINUX IN THE HAM SHACK podcast.…