CVARS WA7UHD

CVARS
The Chehalis Valley
Amateur Radio Society
WA7UHD
A 501(c)(3) Corporation

ARRL special service club




Electronics Workshop - January 31, 2019

Time & Location:

Topics:
  1. Oscilloscopes
  2. Software Defined Radios (SDR)
  3. HF Bandpass Filters

Notes:
  1. Soundcard Oscilloscope: 20 - 20,000 Hz

Reference:
Oscilloscopes:
  1. Soundcard Oscilloscope: https://www.zeitnitz.eu/scope_en
  2. Manual: https://ece.vt.edu/files/undergrad/tutorials/manual_scope_v124.pdf
  3. Interface: https://makezine.com/projects/sound-card-oscilloscope/

Software Defined Radios:
  1. Overview: http://wiki.radioreference.com/index.php/Software_Defined_Radios
  2. SDR Lists:
    https://www.rtl-sdr.com/roundup-software-defined-radios/
    https://en.wikipedia.org/wiki/List_of_software-defined_radios
  3. SDR Software:https://en.wikipedia.org/wiki/List_of_amateur_radio_software
  4. SDRs on the Internet:
    http://www.websdr.org/
    https://sdr.hu/

HF Bandpass Filters:
  1. "Clean Up Your Signals with Band-Pass Filters," Ed Wetherhold, Part 1 in May 1998 QST pg 44-48; Part 2 in June 1998 QST pg 39-42.
  2. "Band-Pass Filters fo HF Transceivers," Lew Gordon, September 1988 QST pg 17-19, 23. https://www.arrl.org/files/file/Technology/tis/info/pdf/8809017.pdf
  3. "Band-Pass Filters fo HF Transceivers," Lew Gordon, K4VXhttp://radioaficion.com/cms/band-pass-filters-for-hf-transceivers/
  4. How to wind toroids: https://www.kitsandparts.com/howtowindtoroidswithoutpain.php

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