Comet CAA-500 Mark II Graphic Antenna Analyser 1.8–500MHz

Comet CAA-500 Mark II Graphic Antenna Analyser

The Comet CAA-500 Mark II is a portable SWR and impedance antenna analyser covering 1.8–500MHz. It combines a highly accurate analogue cross-needle meter with a full-colour TFT display, allowing SWR and impedance to be viewed simultaneously while also providing graphical and numerical measurement information.

Automatic and manual sweep modes make it easy to check antenna performance across a selected frequency range. Up to five manual sweep results can be overlaid in different colours, helping you see how changes to antenna length, position, height or matching adjustments affect performance.

Key Features

• Wide frequency coverage from 1.8MHz to 500MHz
• Analogue cross-needle display for simultaneous SWR and impedance readings
• Full-colour TFT display with graphical and numerical measurements
• Automatic sweep of preset amateur-band ranges in approximately 30 seconds
• Manual sweep with adjustable centre frequency and bandwidth
• Overlay up to five manual sweeps in different colours
• Battery-level indicator and selectable automatic power-off timer
• Internal trickle-charging function for installed NiMH batteries

Technical Specifications

• Model: CAA-500 Mark II
• Frequency range: 1.8–500MHz across 35 ranges
• RF output: 0dBm / 1mW
• Analogue SWR range: 1.0–6.0:1
• LCD SWR range: 1.0–9.9:1
• Impedance range: 12.5–300Ω
• Resistance display range: 10–500Ω
• Reactance range: 0–500Ω absolute value, 1.8–190MHz
• 1.8–300MHz connector: SO-239 / UHF female
• 300–500MHz connector: N-type female
• Operating temperature: 0°C to +40°C

Power and Dimensions

• Internal power: Six AA alkaline or NiMH cells, not included
• Continuous operation: Up to approximately 9 hours with alkaline batteries
• External power: 8–16V DC, centre positive
• Current consumption: 185mA or less
• Dimensions: 89 × 196 × 70mm including protrusions
• Weight: Approximately 800g without batteries; 940g with alkaline batteries

Included

• Comet CAA-500 Mark II antenna analyser
• External DC power cable

Please note: Six AA batteries are required and are not included. The optional Comet CAA-5SC soft case is available separately.