Okay, let's break down the key findings and specifications extracted from the provided text regarding the signal generator's performance. I'll organize this into categories: Amplitude/Level, Phase Noise, and Other Relevant Specs. I'm aiming for clarity and conciseness.

1. Amplitude/Level

️· Standard Absolute SSB Phase Noise (Without I/Q Modulation): Multiple tables detail phase noise performance across different frequencies (1 GHz, 10 GHz, 20 GHz, 31.8 GHz, 44 GHz) at various offset frequencies (1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz, 1 MHz, 10 MHz, 100 MHz). These values are given in dBc/Hz. I'm unable to copy the tables completely here due to their size and formatting complexities, but the data provides a detailed picture of the generator's phase noise characteristics.
️· Phase Noise with I/Q Modulation On: The generator has improved phase noise performance when I/Q modulation is enabled, as specified in several tables.
️· I/Q Modulator Input Conditions: When using the phase noise optimized I/Q modulation mode, the I/Q modulator attenuator is set to 'auto' and the I/Q input levels are constrained: `√ (I² + Q²) = 0.5 V rms`. This condition is important to achieve the best phase noise.

2. Phase Noise (Key Performance Indicators - Illustrative Examples - see tables in the document for full details):

️· Example - 44 GHz, 10 kHz Offset:
- Without I/Q: ~-110 dBc/Hz
- With I/Q: Significantly improved (check relevant table for specific value)
️· Optimization Mode (Option UNY): Dedicated mode for optimized performance at offsets less than 150 kHz.

3. Other Relevant Specifications/Notes:

️· Measurement Equipment: Phase noise data was collected using an E5500.
️· Spurs: Phase noise data is plotted *without* spurs (undesired spectral components).
️· Temperature Dependence: The phase noise for Option UNY is warranted from 25°C to 35°C.

Important Considerations and Limitations of the Extracted Information:

️· Tables are Critical: The *most* important aspect of the data is the series of tables detailing phase noise performance. I can't reproduce these fully in text, as they are complex. Reviewing those tables directly is vital for truly understanding the generator's capabilities.
️· Context: The provided text is likely excerpted from a larger datasheet or technical document. There may be other important specifications not mentioned here.
️· Terminology: "dBc/Hz" is a standard unit in signal generator specifications. It represents the phase noise level in decibels relative to the carrier signal, normalized to a 1 Hz bandwidth.



To help me provide more targeted information, please tell me:

* **What specific phase noise performance are you most interested in?** (e.g., at a particular frequency and offset)
* **What are you trying to achieve with this signal generator?** (application, target performance)