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  • Digital display for QRP labs 20W dummy load – part 2 22/06/2022
  • NanoVNA-H – modification of v3.3 PCB to start the bootloader from the jog switch 19/06/2022
  • NanoVNA-H* – a howto do firmware update using STM32CubeProgrammer 18/06/2022
  • Digital display for QRP labs 20W dummy load – part 1 17/06/2022
  • Digital display for VK-AMPS 2kW directional coupler – part 1 14/06/2022
  • Digital display for Revex W560 directional wattmeter – part 1 12/06/2022
  • How important is directional coupler Directivity? 07/06/2022
  • AT-100 ATU Sontheimer coupler using a single binocular ferrite core 05/06/2022
  • ICSP programming of the (tr)uSDX – more on SPI 05/06/2022
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  • RF Power Meter 2 (RFPM2) – 40dB external attenuator calibration and integration 03/06/2022
  • NanoVNA-H* – my method for firmware updates 01/06/2022
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  • NanoVNA-App – NanoVNA-App-Setup-v1.1.209-OD11 30/05/2022
  • Another small efficient matching transformer for an EFHW – 2643251002 – #4 – a paired Guanella 1:1 balun 27/05/2022
  • Center-Fed Dipole : elements length for a Z=200 +/- 0j ohms 25/05/2022
  • Another small efficient matching transformer for an EFHW – 2643251002 – #3 – thermal measurement 24/05/2022
  • Sontheimer coupler – transformer issues – an alternative design – FT37-43 24/05/2022
  • End Fed Half Wave matching transformer – 80-20m – model and measurement 23/05/2022
  • Sontheimer coupler – transformer issues – an alternative design – FT23-43 21/05/2022
  • Measuring modulation index of an amplitude modulated wave with an oscilloscope 19/05/2022
  • U.FL connectors – hints 18/05/2022
  • The need for infinite preamplifier gain? 16/05/2022
  • ESP WiFi relay project – update #1 16/05/2022
  • WriteOptiBoot.bat 15/05/2022
  • USBasp – hints 15/05/2022
  • ICSP programming of the (tr)uSDX 14/05/2022
  • Switching times in Class-E RF power amplifiers 14/05/2022
  • NanoVNA-H4 – inductor challenge – part 7 08/05/2022
  • FNIRSI FNB48 USB meter – cable resistance measurement 07/05/2022
  • NanoVNA – measuring Q of an inductor using s21 – fails? 03/05/2022
  • Sontheimer coupler – transformer issues 03/05/2022
  • NanoVNA – Port 1 port extension 30/04/2022
  • NanoVNA – DiSlord NanoVNA-D v1.1.00 & NanoVNA-App-v1.1.209-OD10 calibration 26/04/2022
  • Calculator – solve parallel resonance 21/04/2022
  • NanoVNA – trying the DiSlord built in cable length measurement feature 21/04/2022
  • Ferrite cored RF chokes in Class-E RF power amplifiers – core material issues 19/04/2022
  • NanoVNA phase confusion 17/04/2022
  • NanoVNA-H4 – inductor challenge – part 6 16/04/2022
  • Ferrite cored RF chokes in Class-E RF power amplifiers 15/04/2022
  • Chinese attenuator board review 10/04/2022
  • NanoVNA-H4 – inductor challenge – part 5 10/04/2022
  • NanoVNA-H4 – inductor challenge – part 4 09/04/2022
  • NanoVNA-H4 – inductor challenge – part 3 08/04/2022
  • NanoVNA-H4 – inductor challenge – part 2 07/04/2022
  • NanoVNA-H4 – inductor challenge -part 1 06/04/2022
  • NanoVNA-App – driver for NanoVNA firmware updates 03/04/2022
  • InsertionVSWR of Chinese 1:9 balun module #3 – correcting Z using e-delay 30/03/2022
  • ESP WiFi relay project – preview 23/03/2022
  • InsertionVSWR of Chinese 1:9 balun module #2 21/03/2022

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Tag: IC-7410 tests

IC-7410 tests – 03 – Noise Figure

An article in a series documenting measurements on an IC-7410.

This focuses on receiver Noise Figure.

Continue reading IC-7410 tests – 03 – Noise Figure

Last update: 19th June, 2014, 9:59 PM
Posted on 15/03/201419/06/2014Categories Amateur Radio, Receivers, TransmittersTags IC-7410 tests, Noise FIgure Meter

IC-7410 tests – 02 – digital audio output

An article in a series documenting measurements on an IC-7410.

This focuses on digital audio output level encoding headroom.

Continue reading IC-7410 tests – 02 – digital audio output

Last update: 19th June, 2014, 10:00 PM
Posted on 10/03/201419/06/2014Categories Amateur Radio, Receivers, TransmittersTags IC-7410 tests

IC-7410 tests – 01 – linearity

An article in a series documenting measurements on an IC-7410.

Continue reading IC-7410 tests – 01 – linearity

Last update: 14th March, 2014, 4:02 PM
Posted on 10/03/201414/03/2014Categories Amateur Radio, Receivers, TransmittersTags IC-7410 tests
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