RadioExperiments

Experiments, tests and mods on RF equipment

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Antennas

Antenna-related experiments: tuning, comparisons, installation notes and supporting measurements.

• Antennas/Antenna_Tests
  General antenna tests & notes (misc experiments / setups).

• Antennas/Sirio_Boomerang_27A
  Measurements and notes for Sirio Boomerang 27A (CB band / 11m oriented work).

• Antennas/Sirio_GPS_1-2
  Notes/measurements for Sirio GPS 1/2 (baseline characterization & setup).

• Antennas/Sirio_GPS_1-2_vs_Boomerang_27A
  Direct comparison between Sirio GPS 1/2 and Boomerang 27A.

• Antennas/Unun91_Transformer
  9:1 UNUN transformer build/tests (matching / transformer behavior).

• Antennas/WhipAntennasComparition
  Comparison tests across various whip antennas (performance / behavior differences).

• Antennas/ATU-130_AntennaTuner
  ATU-130 Automatic Antenna Tuner. How It Really Works (tests, measurement etc).

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MiniATS

Experiments and comparisons around MiniATS receivers (V2/V3/V3S/V4), including tests & modifications.

• MiniATS/Amnvolt_V3S
  Amnvolt power supply noise reduction work for V3S (includes datasheets + related experiments).

• MiniATS/Amnvolt_V3S/JFET_Power_Supply_Mod
  JFET-based power supply noise reduction modification attempt for V3S.

• MiniATS/Amnvolt_V3S/JFET_Power_Supply_Mod_Old
  Older iteration of the JFET power supply mod (kept for reference).

• MiniATS/Amnvolt_V3S/Power_Supply_Noise
  Measurements/observations focused on power supply noise and its impact.

• MiniATS/Amnvolt_V4
  V4-related work (baseline + supporting material).

• MiniATS/Amnvolt_V4_mods
  Hardware mods applied to the V4 setup.

• MiniATS/Amnvolt_V4/Reception_Tests
  Reception tests for V4 (first series).

• MiniATS/Amnvolt_V4/Reception_Tests_v2
  Reception tests for V4 (revised/second series).

• MiniATS/Hardware_Mod_for_V3_Battery_Drain
  Hardware modification targeting MiniATS V3 battery drain issue.

• MiniATS/MiniATSv3Cannibalized
  Cannibalized V3 unit restoration (parts, inspection, experimentation).

• MiniATS/V2_vs_V3
  Comparison tests between MiniATS V2 and V3.

• MiniATS/V2_vs_V3S_vs_RTL-SDR_V3
  Comparative reception/testing between V2, V3S and RTL-SDR v3.

• MiniATS/V3_Original_Firmware
  Original firmware files for MiniATS V3.

• MiniATS/V3S_vs_V4
  Direct comparison tests between MiniATS V3S and V4.

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Misc

Small focused topics that don’t fit elsewhere.

• Misc/FM_Notch_Filters
  FM band-stop / notch filter notes, comparisons and measurements.

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Transceivers

Transceiver-related experiments and digital-mode receive setups/tests.

• Transceivers/CRT_SS9900V_FT8
  FT8-related work around the CRT SS9900V (setup/behavior/tests).

• Transceivers/FT8_Receiving
  General FT8 receiving setup notes & experiments (non-transceiver-specific).

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License

CC BY-NC-SA 4.0 — see LICENSE.md