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CHA BV Frequently Asked Questions

CHA BV is easiest to understand when each question is tied to the exact configuration, band, radiator, return path, and site.

Product Installation Guides CHA BV Reviewed 2026-07-14
In plain language: CHA BV is easiest to understand when each question is tied to the exact configuration, band, radiator, return path, and site.

Most questions about this antenna become simple once the operator names the exact configuration instead of asking what an isolated component can do.

The CHA BV is for operators who want a straightforward resonant vertical without giving up the ability to change the system later. The standard kit brings together the CHA BLANK feed point, SS17 whip, M-COIL, PUCK HUB, four 12.5 ft radials, spike, tent stakes, and 12 ft choked RG-58 coax.

What matters in this configuration

  • Is a tuner always required? Follow the selected configuration: CHA BV and PRV 2.0 are resonant systems, but the exact setup and installed conditions govern the final match.
  • Can any 3/8-24 part be added? No. Thread fit is not evidence of electrical or structural compatibility.
  • Can the return wires stay on their winders? No. Deploy the documented number and length for the selected band.
  • Where should setup begin? Start with the current CHA BV guide and its exact diagram.

Why this choice matters

CHA BV is a resonant, single-band-at-a-time MPAS READY vertical that covers 40 through 6 meters in its documented SS17 configuration and can grow into other guide-defined builds. The useful result comes from the complete documented system rather than any one threaded component.

The parts that make it a complete antenna

  • CHA BLANK feed-point adapter
  • CHA SS17 telescoping whip
  • CHA M-COIL for 30 and 40 meters
  • CHA PUCK HUB and four 12.5 ft banana-plug radials
  • CHA SPIKE, four tent stakes, and line winders
  • 12 ft RG-58 coax with an integrated RFI choke

Use the result in the field

Record the exact radiator, loading or feed-point hardware, return system, mount, feed line, band, dimensions, and final measurement. Repeatability is more valuable than a one-time low SWR reading.

Before you transmit

  • Confirm whether the build uses SS17 with M-COIL or SS25 with M25-COIL.
  • Use the guide table for the selected band, whip length, radial count, and radial length.
  • Keep the supplied feed-point choke in the coax path.
  • Inspect the mount, threads, whip, radials, and clearances before transmitting.
  • Sweep broadly at low power and change one variable at a time.
Boundary: SS17/M-COIL and SS25/M25-COIL are different electrical configurations. Similar appearance or the same thread does not make the coils interchangeable.
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 BV User Guide · View the current product page

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