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Auto Band Sweep Mode

LCD Display Mode

Manual Band Sweep Mode


Comet CAA-500 Mark II Commercial Grade SWR/Impedance Analyzer. Range: 1.8 - 500MHz (including 222MHz band). Check antenna installations in seconds, determine SWR and resonance of an antenna instantly.

Quickly scan the desired frequency range in seconds allowing SWR adjustments quickly and easily. Both SWR and impedance measurements are provided simultaneously. Precision analog meter provides SWR/impedance changes in real time while TFT display shows frequency, band, SWR, impedance, resistance, reactance, and swept-frequency SWR graph


  • The CAA-500 Mark II has a wide-range oscillator covering 1.8-500MHz.
  • The dual analog meter combined with the LCD display, allows simultaneous display of SWR and impedance.
  • The color TFT display permits easy viewing of frequency, band, SWR, impedance, resistance, reactance, and swept-frequency SWR graph. Even in the dark.
  • The band sweep function allows you to measure SWR across the selected ham band and view it on the display graph. You can also define a center frequency and frequency span for display of the SWR characteristics.
  • Programmable Auto Power Off preserves battery life.
  • Connections: SO-239 for 1.8-300MHz range and N-female for 300-500MHz range
  • Internal power source of 6 AA alkaline or Nickel-Metal Hydride (NiMH) (batteries not included). Up to 10 hours of operating time on alkaline batteries.
  • External 8-16VDC may be used to power the meter and/or trickle charge the NiMH batteries.
  • Size: 3.3 x 6.9 x 2.5 inches (80x170x60mm)
  • Weight: 28 oz (800g)
  • Optional soft case
Download Information Sheet. or users manual.


Comet SWR/Impedance Analyzer
Model No. Description Price Cont. USA Export
CAA-500 Mark II  Commercial Grade SWR/Impedance Analyzer.
FREE shipping to cont. USA

IN STOCK
$389.95

CAA-5SC  Soft Case for CAA-500 and CAA-500 Mark II. Information Sheet

IN STOCK
$42.00

CAA-500 Mark II/CAA-5SC  Commercial Grade SWR/Impedance Analyzer with Soft Case Information Sheet FREE shipping to cont. USA

IN STOCK
$419.95


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CAA-Case CAA-Case
Case specifications subject to change without notice.
Meter shown with case is CAA-500 now replaced by the CAA500 Mark II