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links:band_plan_with_swr [2024/12/08 22:18] – va7filinks:band_plan_with_swr [2025/12/24 21:29] (current) – va7fi
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 +~~NOTOC~~
 +====== Band Plan With SWR ======
 +{{  bandplanwithswr.png?400|}}
 +This [[https://github.com/va7fi/Canadian-Band-Plan |python script]] does two things:
 +  - It reads all ''.asd'' output files from the Rig Expert that are placed in the same folder as this script and calculates the VSWR as a function of the frequency.
 +  - It recreates the band plan for all bands from 2200m to 70cm and adds VSWR graphs on top of it.
 +
 +The HF band plan information was taken from \\ 
 +https://www.rac.ca/operating/bandplans/
 +
 +The VHF and UHF band plan information is for British-Columbia and was taken from https://bcarcc.org/
 +
 +Here's the {{canadianbandplan.pdf |output of my G5RV and GP9}} so far:
 +  * The top of the band plan graph corresponds to SWR = 1:1, where the first dotted horizontal line is.
 +  * For HF, I also added a horizontal line at SWR = 3:1, which is where my internal tuner can reach.
 +  * And the top of the graph is at SWR = 10:1, which is where most external tuners can reach.
 +  * The red graph is the SWR curve.  If it's not showing, it's because it's above 10:1
 +
 +
 +