Wolf River Coil SB 1000 Platinum - 213" Whip Antenna Tuning Guide W0DHZ - Dale Henninger
Love my Wolf Rive Coil Antenna for POTA use but I haven’t marked it up (yet) to facilitate quick band changes while out in the field. Here are some notes to use as a starting point based on the work by W0DHZ Dale Henninger: 102″ Telescoping Whip Band Whip Length Coil Position 6m Only 1st section of whip extended No Clicks – Top of Coil 10m 3 sections out + 6″ of 4th section No Clicks – Top of Coil 40m All sections out 3 Fingers Down 213″ Telescoping Whip Band Whip Length Coil Position 10m 8 sections out + 1″ of 9th section No Clicks – Top of Coil 20m 9 sections out + 13″ of 10th section No Clicks – Top of Coil 40m All sections extended 16 clicks down Reminder to subtract the length of the Wolf River Coils SB-1000 coil from the 1/4 Wave lengths above. http://www.w0dhz.com/wp-content/uploads/2021/08/WolfRiver-SB1000-213inWhip-Tuning-Spreadsheet.pdf