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Chameleon Knowledge Base · The Complete Online HF Antenna Handbook

PRV 2.0 High-SWR Troubleshooting

PRV 2.0 High-SWR Troubleshooting starts with restoring the exact documented CHA PRV 2.0 configuration before retuning or replacing parts.

MPAS READY Handbook 05 Troubleshooting Reviewed 2026-07-14
In plain language: PRV 2.0 High-SWR Troubleshooting starts with restoring the exact documented CHA PRV 2.0 configuration before retuning or replacing parts.

When a portable resonant antenna stops behaving normally, more tuning is not the first answer. Restore the known configuration and inspect the RF path from the radiator to the radio.

The CHA PRV 2.0 is designed for the operator who wants a resonant 40–6 m antenna without carrying a separate antenna tuner. Its standard field system combines the MCC 2.0, SS58 whip, 27 in SINGLE EXT, CHA BLANK, PUCK HUB, four 12.5 ft counterpoise wires, choked coax, Band Keys, and a selected MPAS READY mount.

What matters in this configuration

  • Return to the guide diagram and confirm the assembly order.
  • Inspect coax, connectors, threads, radiator, return wires, and mount for damage or strain.
  • Substitute a known-good coax assembly when the physical inspection does not expose the fault.
  • Stop transmitting and contact Chameleon Support when the documented recovery path does not restore operation.

Why this choice matters

Portable systems are assembled and recovered repeatedly. A loose connector, damaged coax, contaminated thread, misplaced return wire, or changed site can imitate a tuning problem. Inspection is faster than tuning around a fault.

The parts that make it a complete antenna

  • CHA MCC 2.0 continuously adjustable loading coil
  • CHA SS58 telescoping whip and 27 in CHA SINGLE EXT
  • CHA BLANK feed point and CHA PUCK HUB
  • Four 12.5 ft banana-plug counterpoise wires, winders, and tent stakes
  • 12 ft RG-58 coax with an integrated RF choke
  • Band Keys, tactical storage bag, CHA SS INSULATOR, and the selected mount option

Use the result in the field

Make one correction, repeat the same measurement, and record what changed. That sequence isolates the fault instead of creating a new unknown configuration.

Before you transmit

  • Confirm the exact radiator and whether the MCC 2.0 is base loaded, center loaded, or removed for the 6 m OCFD.
  • Use the documented counterpoise count and starting length for the selected band.
  • Keep the supplied feed-line choke in the coax path.
  • Set the MCC 2.0 from the guide or Band Key, then fine-tune the installed antenna.
  • Inspect every mechanical and RF connection before applying operating power.
Boundary: The current guide documents SS58, MIL WHIP, and SS17 MCC 2.0 configurations. It does not document SS25, so connector fit must not be presented as approval.
Use the current source before deployment.

This lesson explains the decision in plain language. The current product guide controls assembly, settings, ratings, and safety.

Open the CHA PRV 2.0 User Guide · View the current product page

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