Boonton 4220A RF Microwattmeter

The Boonton 4220A is a single-channel RF power meter designed for accurate and reliable power measurements. This microprocessor-based instrument is capable of measuring RF power levels across a wide dynamic range, with specific limits dependent on the selected power sensor. It supports the storage of calibration data for up to four interchangeable sensors, allowing for flexible measurement configurations across various applications and frequency ranges without the need for recalibration.

### Technical Specifications

**Measurement Range:**
* **Power:** -75 dBm to +50 dBm, sensor dependent
* **Frequency:** 100 kHz to 100 GHz, sensor dependent (Some sources indicate up to 110 GHz depending on sensor selection)

**Dynamic Range:**
* Up to 90 dB with diode sensors
* 50 dB with thermocouple sensors

**Display:**
* Main data: 4½ digit LED
* Calibration Factor: 4-digit LED
* Analog display: Proportional to data
* Display Units: Absolute (watts and dBm), Relative (dBr)
* Display Resolution: 4½ digits, nW, µW, mW, and W; 0.01 dB, dBm and dBr (Some sources mention 5-digit resolution and 0.001 dB resolution)

**Sensor Compatibility:**
* Accepts up to 4 sensors with full calibration data stored in non-volatile memory
* Compatible with all Boonton CW power sensors
* Sensor data adapter allows automatic loading of sensor information
* Calibration factors: +3 dB to -3 dB in 0.01 dB steps, stored in non-volatile memory. The meter interpolates between stored calibration factors for frequencies not explicitly defined.

**Measurement Features:**
* **Ranging:** Automatic or manual
* **Filtering:** Selectable filter times from 0.05 seconds to 20 seconds
* **Zeroing:** Automatic function to calculate, store, and apply zero corrections
* **Power Reference:** Built-in 50 MHz, 0 dBm power reference
* **Emulation:** Capable of emulating HP437, HP438, and other Boonton models (4220A, 4230A)

### Electrical Specifications

* **Instrumentation Uncertainty:** ±0.32% at full scale (fs), ±0.54% at 1/10 fs
* **Power Reference Uncertainty:**
* Output Frequency: 50 MHz ±1.5%
* Output Level: 0 dBm
* Level Accuracy: ±0.7% (23°C) for 90 days; ±0.9% RSS, 1.2% worst case (0-55°C) for 1 year
* Source Impedance: 50 ±1 ohm
* SWR: < 1.02 * Harmonic Output: < -60 dBc### Interfaces* **Sensor Connectors:** Front panel and rear panel SENSOR connectors standard * **IEEE-488 (GPIB):** Optional rear panel connector. Complies with IEEE-488 and implements SH1, AH1, T6, L4, SR1, RL1, DC1, DT1.### Physical Specifications* **Form Factor:** 3½ inch, half-rack panel### Compatibility* **Power Sensors:** Compatible with all Boonton CW power sensors. Specific sensor models mentioned include: * Boonton 51013 (4E): 100 kHz to 18 GHz, -60 dBm to +20 dBm * Boonton 51100 (9E): 10 MHz to 18 GHz, -20 dBm to +20 dBm * Boonton 51033: 10 MHz to 18 GHz, -40 dBm to +30 dBm * Boonton 51011 (4B): 30 MHz to 12 GHz * Boonton 51085: 500 kHz to 18 GHz, -30 dBm to +20 dBm * Boonton 51075: 500 kHz to 18 GHz, -70 dBm to +20 dBm * **Interconnecting Cables:** Standard sensor cable is 5 ft. Model 41-2A. Optional lengths include 10 ft., 20 ft., 50 ft., and 100 ft.Why Choose Aumictech for Boonton 4220A? At Aumictech, we specialize in supplying high-end RF test and measurement equipment. Whether you need reliable power measurements for R&D, precise signal analysis for lab work, or robust solutions for enterprise procurement, our team ensures the Boonton 4220A delivers maximum performance for your application.