25B - Phase Matrix, Inc. Frequency Counters

Phase Matrix, Inc. 25B Overview

The Phase Matrix / EIP 25B/28B family of CW frequency counters is the ideal choice when it comes to communications applications. These half-rack portable, rugged units combine durability and small size with high performance features typically found only in larger bench-top instruments.

• Frequency Range Band 1: 10 Hz to 100 MHz Band 2: 10 MHz to 1 GHz Band 3: 1 GHz to 20 GHz (25B) or 26 GHz (28B)
• Sensitivity Band 1: 25 mV RMS Band 2: -20 dBm Band 3: -30 dBm to 12.4 GHz, -25 dBm to 20 GHz, -20 dBm to 26.5(28B)
• Acquisition Time Normal Mode : 200 ms Center Frequency Mode: 20 ms
• Power Measurement Range : Same as Band 3 Accuracy : +/- 1.2 dB typical
• Keyboard controlled frequency limit selection
• 200 Watt (+53 dBm) peak damage protection
• 10 dB automatic amplitude discrimination
• Up to 800 MHz/sec tracking speed
• 20 MHz P-P FM tolerance up to a 10 MHz rate