Keysight (Agilent) 355C

| Attribute | Value |
|---|---|
| Frequency Range | 0 to 1000 MHz |
| Attenuation Range | 0 to 11 dB |
| Attenuation Step Size | 1 dB per step |
| Impedance | 50 Ohms |
| Maximum Input Power | 2 W (33 dBm) |
| Connector Type | BNC |
| VSWR | 1.4:1 maximum |
| Operating Temperature | 0°C to +55°C |
| Dimensions | 1.75 x 5.25 x 8.75 inches (1U half-rack) |
| Power Requirement | No external power required (passive device) |
Keysight Technologies 355C Options:
- 355C - 001 - N (f) RF connectors (in place of standard BNC (f))
- 355C - 005 - TNC (f) RF connectors (in place of standard BNC (f))
| Model | 355C |
|---|
The Keysight 355C Manual Step Attenuator operates from DC to 1 GHz, delivering 0–12 dB attenuation in 1 dB steps. Its cam-actuated microswitches ensure minimal stray capacitance and inductance, maintaining low phase shift. Robust and compact, it features BNC connectors and offers a low insertion loss of 0.2 dB + 2.3 dB/GHz.
Capable of withstanding up to 350 W peak input power, the 355C allows versatile input/output connectivity and can be combined with the 355D for up to 132 dB attenuation. SWR performance varies from 1.2 to 1.5 across frequency ranges.
Testwall can supply the used Keysight 355C, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight 355C.





