BETTER than a Sporty Forty: Build a 40 meter Coil for Chameleon SS25 Whip! @KB9VBRAntennas
BETTER than a Sporty Forty: Build a 40 meter Coil for Chameleon SS25 Whip!  @KB9VBRAntennas
Uploaded January 2025 | Updated September 2026, 2 weeks ago
This is a game changer! The Chameleon SS25 25 foot whip is great, but if you want to use it to its full potential on the 40 meter band, you need to build this coil.

Chameleon SS25 Whip: chameleonantenna.com/products/stainless-steal-whip?bg_ref=ok7Ky4088r

40 Meter Base Loaded Coil Parts List:
2 - 1 1/2 inch 3/8x24 fine thread stainless steel bolts: amzn.to/4hxG4jp
4 - 3/8x24 inch fine thread stainless steel nuts: amzn.to/3CbK8Xj
4 - 3/8 inch stainless flat washers: amzn.to/4g3mr17
2 - 3/8 inch stainless lock washers: amzn.to/4heojFp
1 - 1 1/8 inch long 3/8x24 fine thread female to female coupler: amzn.to/4agc2xY
14 gauge enameled copper wire. (Approx 6 feet): amzn.to/4cDoXv6
2 inch Shrink wrap tubing or electrical tape to hold the coil in place: amzn.to/3DRMtqN
2 - 1 inch PVC plugs
1 - 1 inch PVC coupler
PVC cement
Step Drill Bit Set: amzn.to/4hcgIXP

Most parts, with exception of the copper wire and stainless coupler are available at your local home improvement store such at Home Depot, Lowes, or Menards.

DER Ee De-5000 High Accuracy Handheld LCR Meter: amzn.to/4gXmkFO

Resources:
Coil Inductance Calculators: 66pacific.com
KI5GRD 40m Coil Plans: ki5grd.org/p/build-base-loaded-40-meter-coil-for

Hear the complete Parks on the Air activation! Patrons can view the unedited phone contacts for this POTA activation. Visit my page on Patreon for details: patreon.com/kb9vbrantennas

I do return QSL, if you made a contact with me and would like a QSL, please send me one. Return postage not necessary, but always appreciated. As they say, KB9VBR is 'good in the book

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My Parks on the Air setup:
Transceiver: amzn.to/3lmHoei
Battery: amzn.to/3xBGgbv
Tuner: amzn.to/2ZCNM9l
Folding Table: amzn.to/3xFIp5Z
Throw Weight: amzn.to/32QW2nB

Video Production Equipment:
Camera amzn.to/32UaXNX
Lens amzn.to/31mmDrX
Wireless Microphone: amzn.to/3xFVBb4
Microphone: amzn.to/3daoAdq
GoPro: amzn.to/3pkmP30

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BETTER than a Sporty Forty: Build a 40 meter Coil for Chameleon SS25 Whip!

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