Метка: measurements
AD9910 DDS
AD9851 part 3 — video (RU)
https://github.com/enthru/SignalGenerator/tree/AD9851
AD9851 + BFG591 LNA
Frequency response: SFDR: https://github.com/enthru/Arduino-AD9851-DDS-Direct-Digital-synthesizer-Signal-Generator
Lab (or pseudolab for DPS5015) PSUs 3.3v power-up
Small comparison.
1.5KW HF load SWR
Big HF load
It’s based on a copper plate, big old whipped aluminium radiator and two 100Ohm resistors, 800watt each.
Fully assembled power load
Big battery capacity:
Building 6Ah LiFePO4 battery
Received prebuilt battery and few elements: Big one is pretty heavy and overqualified for QRP 🙂 18Ah is enough to drive 100watt
Simple tests of electronic load and Xiaomi powerbank
Video (RU)