| 001 | Add IF switching capability |
| 002 | Del step attenuators/bias tees |
| 003 | High dynamic range configuration, attenuators, and bias networks |
| 004 | Attenuators and bias networks |
| 023 | High dynamic range configuration |
| 1BN | Military Standard 45662A Calibration Certification |
| 1BP | Military Standard 45662A Calibration with Test Data |
| 908 | Rack Flange Kit for Use without Handles |
| 910 | Additional operating and service manual |
| 913 | Rack flange kit, front handles attached |
| H83 | |
| RMKT | Agilent Refurbished Product (Do Not Use - Certiprime Option) |
| STD | Standard configuration |