HP 8563A Spectrum Analyzer – Part 3: Fixing the Attenuator & YTF Recalibration скачать в хорошем качестве

HP 8563A Spectrum Analyzer – Part 3: Fixing the Attenuator & YTF Recalibration

After successfully reviving the HP 8563A with a new OCXO, the next challenge is repairing the faulty attenuator—a critical step before full recalibration. In this episode, I dismantle, repair, and test the attenuator, then dive into YTF recalibration to fix a 52 MHz frequency shift! But will everything work perfectly? Spoiler: almost! What’s in this video? ✅ Step-by-step attenuator repair (yes, including the "butchering" moment!) ✅ Diagnosing high-frequency band issues (Is it the RF switch or the YTF?) ✅ Recalibrating the YTF using a power meter, frequency counter, and spectrum analyzer ✅ Testing results at 3 GHz, 10 GHz, 15 GHz, and 20 GHz ✅ Preparing for the grand finale Why does this matter? The HP 8563A is a legendary piece of test equipment, and restoring it to full functionality is a challenge worth sharing. Whether you're into RF engineering, vintage electronics, or DIY repairs, this series offers practical insights into spectrum analyzer calibration and troubleshooting. Tools & Equipment Used: HP 8563A Spectrum Analyzer (the star of the show!) MS710A Spectrum Analyzer (for cross-verification) HP 432A Power Meter + 8478B Sensor (for precise measurements) EIP 548A Frequency Counter (to combat drift) Support the channel: 👍 Like if you enjoyed this repair! 🔔 Subscribe for more vintage equipment restorations. Credit: Intro/Outro: Jason Farnham - Microchip ( • Microchip - Jason Farnham )