No warranty is offered, if you break it, you get to keep both parts. WARNING: there is potential for damage if you get this stuff wrong. If for some reason you cannot use the bootloader that reads from the USB port via the CP2102, you can resort to programming the MCU chip using the SWD port and a programmer that supports that protocol. A simple Simsmith model for exploration of a common EFHW transformer design – 2t:16t.A simple Simsmith model for exploration of a common EFHW transformer design – 2t:14t.A simple Simsmith model for exploration of a 50Ω:200Ω transformer using a 2843009902 (BN43-7051) binocular ferrite core.Loop in ground (LiG) – #10 – implementation – earthworks.Chinese batteries – replacements for Makita 1220 battery pack.nanoVNA – measure common mode choke – it is not all that hard!.RTKLIB using stunnel for TLS connection to NTRIP host.Low power Guanella 1:1 balun with low Insertion VSWR using a Fair-rite 2843009902 binocular – measurement of Zcm.Holzforma / Farmertec G372XT chainsaw – initial evaluation.Another small efficient matching transformer for an EFHW – 2643251002 – #1 – design workup.Another small efficient matching transformer for an EFHW – 2643251002 – #2 – prototype bench measurement.Matching a centre loaded 80m vertical – a shunt match tutorial.No-name video baluns common mode impedance.Resolve measurement of I1, I2 and I12 into Ic and Id.Loop in ground (LiG) for rx only on low HF – #8 measurement and observation.Choosing a ferrite mix for a 160m unun rationally.A mid life kicker for the 2500VA 230V 50Hz genset.Loop in ground (LiG) for rx only on low HF – #10 SND comparison with LoG.Ambient noise measurement using whip on vehicle – #1 – estimate Antenna Factor.
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#CLEANFLIGHT FIRMWARE HEX FILE SERIES#
NanoVNA-H4 – a ferrite cored test inductor impedance measurement – s11 reflection vs s21 series vs s21 pi.The Smith chart, a thing of beauty… and great utility #2.On testing two wire line loss with an analyser / VNA – part 5.InsertionVSWR of Chinese 1-9 balun module.
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InsertionVSWR of Chinese 1-9 balun module – that load resistor.On testing two wire line loss with an analyser / VNA – part 6.NanoVNA-H4 v4.3 – improving the SD card slot.NanoVNA-H4 v4.3 – broken SMA connector.A 1:4 RF transformer for measurements – based on Noelec 1:9 balun assembly.
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