| MG3691C | Signal Generator, 2 GHz to 10 GHz |
| MG3692C | Signal Generator, 2 GHz to 20 GHz |
| MG3693C | Signal Generator, 2 GHz to 31.8 GHz |
| MG3694C | Signal Generator, 2 GHz to 40 GHz |
| MG3695C | Signal Generator, 2 GHz to 50 GHz |
| MG3697C | Signal Generator, 2 GHz to 67 GHz (operational to 70 GHz) |
| MG3690C/1A | Option 1A, Rack Mount with slides |
| MG3690C/1B | Option 1B, Rack Mount without slides |
| MG3690C/2x | Option 2x, Mechanical Step Attenuator |
| MG3690C/2E | Option 2E, Electronic Step Attenuator |
| MG3690C/3 | Option 3, Ultra Low Phase Noise, improved Standard Phase Noise |
| MG3690C/3X | Option 3X, Premium Phase Noise - improves option 3 (< 1 kHz offset); for models except MG3691C |
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| MG3690C/3XA | Option 3XA, Premium Phase Noise - improves option 3 (< 1 kHz offset); for MG3691C |
| MG3690C/4 | Option 4, extends frequency coverage from 8 MHz to 2.2 GHz |
| MG3690C/5 | Option 5, extends frequency coverage from 8 MHz to 2 GHz |
| MG3690C/6 | Option 6, Analog Sweep Capability |
| MG3690C/7 | Option 7, IF Up-Conversion |
| MG3690C/8 | Option 8, Power Monitor |
| MG3690C/9X | Option 9, Rear Panel Output |
| MG3690C/10 | Option 10, User-Defined Modulation Waveform Software |
| MG3690C/12 | Option 12, Frequency and Phase |
| MG3690C/14 | Option 14, Amplitude Modulation |
| MG3690C/15x | Option 15x, High Power |
| MG3690C/16 | Option 16, High Stability Time Base |
| MG3690C/17 | Option 17, Delete Front Panel |
| MG3690C/18 | Option 18, DC Output: + 15 VDC, 1A (nominal) |
| MG3690C/20 | Option 20, Scan Modulation |
| MG3690C/22 | Option 22, extends frequency coverage from 0.1 Hz to 10 MHz |
| MG3690C/26x | Option 26x, Pulse modulation |
| MG3690C/27 | Option 27, Internal LF and Pulse Generators |
| MG3690C/28x | Option 28x, Analog Modulation Suite |
| MG3690C/36 | Ultra-Stable Phase Tracking |