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DK7IH Radio & Electronics Engineering

Radio, Electronics, Science and Technology

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DK7IH QRP-Shop (updated)

Recent Comments

  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Improved matching for 20-meter-band rod antenna
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on A “lean design” SSB-Transceiver for 14 MHz
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Reviewing and improving the semi-automatic antenna tuner
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Going back in time: “Old school” transceiver for 20 meters with 20 watts of output
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Re-engineering my 1st “Shirt-pocket” transceiver
  • DK7IH on Revising the “Lean Design Transceiver”
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Revising the “Lean Design Transceiver”
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Mr Mark on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on Constructing a high performance transceiver for voice communication on 14MHz
  • Dave_DIW on Constructing a high performance transceiver for voice communication on 14MHz
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • Phil on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on Bio
  • dr ing Johan den Boef/dammers. on Bio
  • dr ing Johan den Boef/dammers. on Bio
  • DK7IH on Bio
  • Heinz Stampfl on Bio
  • URL on Revising the “Lean Design Transceiver”
  • DK7IH on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Jean Marchadier on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • DK7IH on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Jean Marchadier on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Vladimir on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Yong Lee on Fake components – and how to recognize them
  • Peter Sidler on The „Micro20 III“ – A Simplified Pocket Size SSB Transceiver for 14 MHz
  • DK7IH on Decoding time station signals (DCF77 etc.) with a microcontroller
  • Zdenek Pitak on Decoding time station signals (DCF77 etc.) with a microcontroller
  • DK7IH on Bio
  • таким on Bio
  • DK7IH on A simple software to control the Si5351A clock generator chip
  • Halden on A simple software to control the Si5351A clock generator chip
  • Per Appel on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • Heinz on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • DK7IH on A compact project: The “Micro42” – Another “shirt pocket” SSB transceiver.
  • Greg SP3RNZ on A compact project: The “Micro42” – Another “shirt pocket” SSB transceiver.
  • Jochen Pfeiffer on Bio
  • Peter (DK7IH) on Bio
  • Jochen Pfeiffer on Bio
  • DK7IH on Bio
  • Jochen Pfeiffer on Bio
  • Radio Luisteren on The Micro QRP Transceiver – A pocketful of radio in SMT
  • DK7IH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • Dean K5DH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on An easy-to-build rod antenna for 14 MHz (20 meter band)

Recent Comments

  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Improved matching for 20-meter-band rod antenna
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on A “lean design” SSB-Transceiver for 14 MHz
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Reviewing and improving the semi-automatic antenna tuner
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Going back in time: “Old school” transceiver for 20 meters with 20 watts of output
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Re-engineering my 1st “Shirt-pocket” transceiver
  • DK7IH on Revising the “Lean Design Transceiver”
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Revising the “Lean Design Transceiver”
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Mr Mark on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on Constructing a high performance transceiver for voice communication on 14MHz
  • Dave_DIW on Constructing a high performance transceiver for voice communication on 14MHz
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • Phil on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on Bio
  • dr ing Johan den Boef/dammers. on Bio
  • dr ing Johan den Boef/dammers. on Bio

Recent Comments

  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Improved matching for 20-meter-band rod antenna
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on A “lean design” SSB-Transceiver for 14 MHz
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Reviewing and improving the semi-automatic antenna tuner
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Going back in time: “Old school” transceiver for 20 meters with 20 watts of output
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Re-engineering my 1st “Shirt-pocket” transceiver
  • DK7IH on Revising the “Lean Design Transceiver”
  • DINDA AULIA AZZAHRA PUTRI PURWANTO on Revising the “Lean Design Transceiver”
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Mr Mark on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on Constructing a high performance transceiver for voice communication on 14MHz
  • Dave_DIW on Constructing a high performance transceiver for voice communication on 14MHz
  • DK7IH on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • Martin Weiler on QRP Transceiver for the 20-Meter-Band (SSB) by DK7IH Peter Rachow
  • DK7IH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • Phil on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on Bio
  • dr ing Johan den Boef/dammers. on Bio
  • dr ing Johan den Boef/dammers. on Bio
  • DK7IH on Bio
  • Heinz Stampfl on Bio
  • URL on Revising the “Lean Design Transceiver”
  • DK7IH on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Jean Marchadier on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • DK7IH on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Jean Marchadier on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Vladimir on Interfacing an LCD12864 (ST7920 controller) to a microcontroller
  • Yong Lee on Fake components – and how to recognize them
  • Peter Sidler on The „Micro20 III“ – A Simplified Pocket Size SSB Transceiver for 14 MHz
  • DK7IH on Decoding time station signals (DCF77 etc.) with a microcontroller
  • Zdenek Pitak on Decoding time station signals (DCF77 etc.) with a microcontroller
  • DK7IH on Bio
  • таким on Bio
  • DK7IH on A simple software to control the Si5351A clock generator chip
  • Halden on A simple software to control the Si5351A clock generator chip
  • Per Appel on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • Heinz on DDS and spurious signals – The role of the post-DDS-amplifier (Part I)
  • DK7IH on A compact project: The “Micro42” – Another “shirt pocket” SSB transceiver.
  • Greg SP3RNZ on A compact project: The “Micro42” – Another “shirt pocket” SSB transceiver.
  • Jochen Pfeiffer on Bio
  • Peter (DK7IH) on Bio
  • Jochen Pfeiffer on Bio
  • DK7IH on Bio
  • Jochen Pfeiffer on Bio
  • Radio Luisteren on The Micro QRP Transceiver – A pocketful of radio in SMT
  • DK7IH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • Dean K5DH on A simple 2-tone-generator for testing the linearity of SSB transmitters
  • DK7IH on An easy-to-build rod antenna for 14 MHz (20 meter band)
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