| FS300 | Tektronix | Spectrum Analyzer, 9 kHz - 3 GHz |
| FSH3 | Tektronix | Spectrum Analyzer, 100 kHz - 3 GHz |
| FSH313 | Tektronix | Spectrum Analyzer, 100 kHz - 3 GHz |
| FSH323 | Tektronix | Spectrum Analyzer, 100 kHz - 3 GHz |
| FSP13 | Tektronix | Spectrum Analyzer, 9 kHz - 13 GHz |
| FSP3 | Tektronix | Spectrum Analyzer, 9 kHz - 3 GHz |
| FSP30 | Tektronix | Spectrum Analyzer, 9 kHz - 30 GHz |
| FSP7 | Tektronix | Spectrum Analyzer, 9 kHz - 7 GHz |
| FSU26 | Tektronix | Spectrum Analyzer, 9 kHz - 26.5 GHz |
| FSU3 | Tektronix | Spectrum Analyzer, 9 kHz - 3.6 GHz |
| FSU46 | Tektronix | Spectrum Analyzer, 9 kHz - 46 GHz |
| FSU8 | Tektronix | Spectrum Analyzer, 9 kHz - 8 GHz |
| RSA2203A | Tektronix | Real-Time Spectrum Analyzer, 10 MHz - 3 GHz |
| RSA2208A | Tektronix | Real-Time Spectrum Analyzer, 10 MHz - 8 GHz |
| RSA3303A | Tektronix | Real-Time Spectrum Analyzer, DC - 3 GHz |
| RSA3308A | Tektronix | Real-Time Spectrum Analyzer, DC - 8 GHz |