| 001 | Rear panel connectors instead of front |
| 002 | 1x10e-9/Day Internal Reference Oscillator |
| 003 | External LO Capability |
| 004 | 48-440 Hz power line fan |
| 021 | Add HP 11722A Sensor Module |
| 030 | High Selectivity |
| 032 | 12.5 kHz Adjacent Channel Filter |
| 033 | 25 kHz Adjacent Channel Filter |
| 035 | 30 kHz (Cellular Radio) Alternate Channel Filter |
| 037 | Carrier Noise Filter (2 kHz BP Filter) |
| 050 | Increased Power Measurement Accuracy |
| 907 | Front handle kit |
| 908 | Rack flange kit |
| 909 | Front handle and rack flange kit |
| 910 | Additional manuals |
| 915 | Service manual |
| ABJ | Japan Quick Users Guide (Japanese localization) |
| C16 | C_CHP_.01U_50V |
| C2X | 2x Calibration Service Agreement |
| C3X | 3x Calibration Service Agreement |
| E16 | |
| G50 | |
| H10 | IMPROVED TUNED RF LEVEL SPECIFICATIONS |
| H20 | LOW RF EMI TO OUTPUT |
| K09 | SPECIAL OPTION |
| M40 | CALIBRATION/W DATA |
| R24 | Extended 24 Month Warranty |
| R36 | Extended 36 Month Warranty |
| RC24 | Extended 24 Month Warranty & 2x Calibration Service Agreement |
| RC36 | Extended 36 Month Warranty & 3x Calibration Service Agreement |
| RMKT | Agilent Refurbished Product (Do Not Use - Certiprime Option) |
| UK6 | Commercial calibration with test results data |
| W30 | 3 Years Return for Repair Service |
| W55 | 5 Year Service Warranty |
| Z8902S/K01 | SPECIAL SOFTWARE |