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Tools
We have added some calculators here to help you get started or validate some of the Mast and Guy clearance calculations.
Please use this calculator at your discretion and double check your results with other sources or methods.
This calculators provided is for informational purposes only. JK Antennas Inc. is not responsible for any errors, omissions, or damages arising from its use. Please consult a Professional Engineer for your Tower, Mast and Antenna setup & installations.
Mast Calculator
Please use this calculator to calculate the survivability of your Mast. There are varieties of masts such as Chromoalloy Mast, DOM Masts, Schedule 40/80 Masts used by Radio Stations. We have provided a standard/conservative rating on the yield PSI. You can choose to alter these at your discretion and for calculation purposes.
A quick and important point to note is the wind load of the antennas. You should check with your tower manufacturer about your tower EIA-222 Rev (?) rating.
Also your antennas modeled on the mast should use the latest "G" or higher ratings.
For example, lets take an average Tribander, (with 3-elements on 20m, 4-elements on 15m and 5-elements on 10m), the average wind-load under a "G" rating will be a minimum of 18.0-19.0 SqFt.
If you see other Tribanders that are not close to this number, then they are not "G" rated wind-load.
An average 20M reflector element will be a minimum of 3.0 SqFt under the "G" spec. Use that as a reference when you check things out or compare with other antenna manufacturers.
Pay close attention to the "DEFLECTION" number. This shows how much the Mast moves laterally during high winds. The higher the number, the more the Mast moves whipping around.
Please click here for the Mast Calculator ...
Guy Clearance Calculator
Please use this calculator at your discretion to calculate your tower guy clearance for your antennas.
Also double-check the results with other methods to validate the turning radius available to you.
Please click here for the Guy Clearance calculator.