Antenna VSWR

Here's a look at tracking antenna VSWR over time. The minimum VSWR frequency shifts down when an antenna gets coated with ice. Also, some repairs, tuning, etc. have taken place over time.
Date
Comments
A3S Inverted V
40 Meters 20 Meters 15 Meters 10 Meters 40 Meters
August 2019
A3S installation
November 13, 2019
After replacement of TK trap that failed due to ice
February 15. 2020
A3S checked and element lengths set for mid-band. Antenna at top of mast and pointed North.
February 15. 2020
A3S checked and element lengths set for mid-band. Antenna at top of mast and pointed West.
March 15, 2020
Adjust driven element lengths to bring minimum SWR frequency in band
March 21, 2020
After ice melts off antenna
March 22, 2020
Warmer weather (52F) gets any remaining ice off antenna
March 28, 2020
After ice from last night melted. Yagi pointed north.
March 28, 2020
Adjusted driven element guy rope to get DE more parallel with other elements.