The F-42A is for laboratory and field testing. The useable frequency range of this probe is 1 kHz – 100 MHz. A typical calibration curve is shown below. This probe has a small outer diameter, approximately 71 mm with an internal diameter of 32 mm.
Product  | 
												Frequency  | 
												dBΩ (nominal)  | 
												ZtΩ (nominal)  | 
												Connector  | 
												Inner Diameter (mm.)  | 
												Outer Diameter (mm.)  | 
												Height (mm.)  | 
												Max Primary Current DC-400Hz  | 
												
												CW current (amperes)  | 
												Peak Pulse Current  | 
												Calibration Fixture  | 
											
|---|---|---|---|---|---|---|---|---|---|---|---|
| F-42A | 1 kHz - 100 MHz | 12 | 4 | Type-N | 32 | 71 | 19 | 50 | 2 | 100 | FCC-MPCF-2-32-40/71/19 |