The following instrument model numbers have limited or NO support from Roos Instruments. Roos will make a "best effort" attempt to repair or replace the instrument before recommending a system upgrade or replacement. Please contact [email protected] for details.
Limited Support means: No longer guarantee stock of these sources or their replacement parts under ME (Fast Ship Module Exchange) service. Repair must be "return to factory" for most cases. RI will make every reasonable effort to repair a failed source. If the source can not be repaired, purchase a new Gen 4 source, replace with another spare, or remove functionality (i.e. INTERMOD).
| Model Numbers | Date Last Shipped | Date Limited Support | Date NO Support | System Generations | Upgrade Path | Comments |
| RI7710G RI7711G | 2011-02 | 2012-05 | TBD | All Gen 1 RI7100As All Gen 2 RI7100As Most Gen 3 RI7100As | Gen 4 Source (RI7725A, RI7725B, etc.) | AKA "Long" sources due to their depth in the rack. Anritsu model 68047B, some shipped as 'used' in 2011. |
| RI8574A |  | | | Cassini16 | Remote TIM | Migration to USB to RIFL Remote TIM allows user supplied Hardware |