The EIP Microwave 578 (subsequently Phase Matrix 578) is a specialized Source Locking Microwave Frequency Counter designed for precision frequency measurements and phase-locking external microwave sweepers and signal sources. Operating from 10 Hz to 18 GHz as standard, and expandable up to 90 GHz via options, the 578 utilizes a YIG-preselected input to deliver exceptional amplitude discrimination and high input burnout protection up to 1 Watt.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488), Analog Source Lock DAC Output (BNC) |
| Display | 12-digit LED display |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 VAC (±10%), 50 Hz to 400 Hz |
| Operating Temperature | 0 °C to 50 °C |
| Dimensions (W×H×D) | 432 mm × 89 mm × 457 mm |
| Weight | 12.7 kg |
Frequency Measurement
| Parameter | Value |
|---|---|
| Minimum Frequency (Band 1) | 10 Hz |
| Maximum Frequency (Band 1) | 100 MHz |
| Minimum Frequency (Band 2) | 10 MHz |
| Maximum Frequency (Band 2) | 1 GHz |
| Minimum Frequency (Band 3) | 1 GHz |
| Maximum Frequency (Band 3) | 26.5 GHz |
| Extended Frequency Capability | Up to 110 GHz (with Option 06) |
| Number of Input Channels | 3 (Band 1, Band 2, and Band 3) |
| Input Impedance (Band 1) | 1 MΩ nominal shunted by < 25 pF |
| Input Impedance (Band 2) | 50 Ω nominal |
| Input Impedance (Band 3) | 50 Ω nominal |
| Sensitivity (Band 1) | 25 mV RMS |
| Sensitivity (Band 2) | -20 dBm |
| Sensitivity (Band 3, 1 GHz to 12.4 GHz) | -25 dBm |
| Maximum Input Level (Band 1) | 120 V RMS (frequency dependent) |
| Maximum Input Level (Band 2) | +10 dBm |
| Maximum Input Level (Band 3) | +10 dBm |
| Damage Protection Level (Band 2) | +30 dBm (1 W) continuous |
| Damage Protection Level (Band 3) | +30 dBm (1 W) continuous |
| Input Coupling | AC (all bands) |
| AM Tolerance (Band 3) | Any modulation depth, provided minimum signal level remains above sensitivity threshold |
| FM Tolerance (Band 3) | Up to 10 MHz peak-to-peak |
| Amplitude Discrimination | Distinguishes between signals separated by ≥ 200 MHz and measures the larger signal if ≥ 6 dB greater |
| Frequency Resolution | Selectable down to 1 Hz |
Source Locking & Control
| Parameter | Value |
|---|---|
| Source Locking Method | Analog closed-loop frequency/phase matrix lock control |
| Source Locking Resolution | 10 kHz |
| Lock Control Output Voltage | ±10 V analog sweep/tuning correction signal |
Timebase & Reference Oscillator
| Parameter | Value |
|---|---|
| Standard Reference Oscillator Type | TCXO (Temperature Compensated Crystal Oscillator) |
| Internal Reference Frequency | 10 MHz |
| External Reference Input Frequency | 10 MHz |
| Reference Output | 10 MHz (isolated buffer output) |
Reference Oscillator
| Parameter | Value |
|---|---|
| Standard TCXO Aging Rate | < 1 × 10^-7 / month |
| Standard TCXO Temperature Stability | < 1 × 10^-6 (0 °C to 50 °C) |
Reference Oscillator Options
| Parameter | Value |
|---|---|
| Option 01 Oven Timebase Aging Rate | < 5 × 10^-10 / day (after 72-hour warm-up) |
| Option 01 Oven Timebase Temperature Stability | < 1 × 10^-8 (0 °C to 50 °C) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Connector Type (Band 1) | BNC female |
| Connector Type (Band 2) | BNC female |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -55 °C to +75 °C |
| Operating Humidity | Up to 95% relative humidity at 40 °C (non-condensing) |
| Operating Altitude | Up to 3,000 meters (10,000 feet) |
| Non-Operating Altitude | Up to 12,000 meters (40,000 feet) |
Options & Accessories
| Parameter | Value |
|---|---|
| Option 02 Rear Panel Inputs | Relocates Band 1, Band 2, and Band 3 inputs to the rear panel |
| Extended Frequency Range (Option 06) | 26.5 GHz to 110 GHz (requires EIP 93X Series waveguide sensors) |
Source Locking
| Parameter | Value |
|---|---|
| Source Locking Frequency Range | 10 MHz to 26.5 GHz |
Technology
YIG-preselected Heterodyne Downconversion
Applications
Microwave Frequency Measurement and Source Phase-Locking