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Agilent: 4150 MHz (changed from standard 4100 MHz to avoid forbidden LO range at 560-592 MHz)
LO (SML01): 528 MHz
Coherence observed at 831.5 MHz
DAS profile: VSOP_HO.PRO
Quad hybrid tuned to 355 steps from inner limit. Tone isolation only ~10 dB. Could not achieve better than this. No obvious issues (e.g. difficulty matching amplitudes pre-tuning) present.