- Agilent-Keysight E4422B-1E5- Hersteller: Agilent - Keysight
- Modell: E4422B-1E5
 - Frequency range: 250 kHz - 4.0 GHz | Frequency resolution: 0.01 Hz Lake Mary, Florida
- Agilent-Keysight E4422B-1E5-1EM- Hersteller: Agilent - Keysight
- Modell: E4422B-1E5
 - Frequency range: 250 kHz - 4.0 GHz | Frequency resolution: 0.01 Hz Lake Mary, Florida

