DL1YCF
Op: Christoph van Wüllen (born 1963, qrv since 1982)
QRL: Professor for Theoretical Chemistry (numerical simulations and program development)
email: dl1ycf [at] darc.de
QTH: Kaiserslautern (SW of Germany, Loc. JN39VK), DOK (DARC branch): K16
Resolving a "sideband issue" with the BLA 350 power amplifierIf a SpecAnalyzer shows satellites 6-7 kHz above/below your CW signal, read this. |
Connect a CW key to a computer via a home-made MIDI controllerUsing an Arduino or Teensy board, connect the CW paddle to your computer for use with software defined radios. |
Testing piHPSDR with a HermesLITE-2 (old protocol)RX calibration, PURESIGNAL using cross-talk from TRX relay for feedback. |
Testing piHPSDR on MacOS with HAMlab/STEMlabDIVERSITY reception and PURESIGNAL with and without external tube PA is demonstrated. |
Testing piHPSDR on MacOS with ANAN-7000 (new protocol)DIVERSITY reception and PURESIGNAL with and without external tube PA is demonstrated. |
Digi modes with piHPSDR and MacOSUsing VIRTUAL AUDIO CABLES for routing audio between fldigi/wsjtx and piHPSDR |
Adding a -60dB output to a MFJ 267 DummyLoad/WattmeterYou only need some small resistors and a BNC jacket. |
Reviving/Modifiying a Yaesu FL-2100 RF tube power amplifierDirectly grounding the grids solves many problems. |
Digimodes with Apple Macintosh Laptop and TS590sgThat's easy. A single USB cable connection is sufficient |
Digimodes with Apple Macintosh Laptop and TS570dIt is demonstrated how to use the microHam DigiKeyer-II interface |
The easiest way to let the Kenwood TS590SG transmit on 60mThat's easy. Just cut a single wire bridge |