RG-58 coax cable length calculation for stub interconnections on the 6 Meter Heliax duplexer.

The length calculated is the electrical 1/4 wavelength and takes into account the 66% velocity factor.

Note: One full inch has also been subtracted from the actual 1/4 wavelength to account for lengths in the connectors and receptacles on the stubs and/or the BNC Tee.

Enter the frequency in MHz:

Click the calculate button when ready:

The length of the coax for the interconnecting 1/4 wave RG-58 should be: inches.