| Electronics > Repair |
| JDSU JD745A / GC747a Base Station Analyzer - Repair log |
| << < (5/5) |
| Qw3rtzuiop:
--- Quote from: HF-Bastler on December 29, 2024, 10:33:00 am ---Did you solve your problem with a new calibration table or replacing the mmic? Which mmic was damaged? --- End quote --- Creating a new cal table and replacing a cracked mlcc did the job. There is another thread on this device here: https://www.eevblog.com/forum/testgear/jdsu-j745a-spectrum-analyser-vna-repair-mini-review/ |
| HF-Bastler:
After replacing a rf-switch HMC427ALP3E and some capacitors (+10dB) in the signal-path, and creating a new calibration-table, the frequency-response is much better than before. |
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