I take you through my steps to build this 20 meter-30 meter-40 meter linked dipole antenna, including construction of the insulators, and a trip into the back yard to tune it up. I've built quite a number of these antennas and have strictly use them in the field for SOTA for many years. This is a great antenna to use for portable ops like Summits on the Air, Parks on the Air, or similar events. They perform quite well. The one I constructed only weighs 8 oz. It is best suited for QRP. I'm not sure how well it would perform above 20 watts.
Twitter: @NJ7V_
Instagram: RedSummitRF
Inverted-V Dipole Calculator: http://www.hamuniverse.com/dipivcal.html
Linked Dipole Calculator: https://www.sotamaps.org/extras
Knife Connectors: https://www.aircraftspruce.com/catalog/elpages/knifedisc.php
Spade Connectors: https://amzn.to/39kudUd
BNC Connectors: https://amzn.to/3owOzQ2
22 Gauge Wire: https://amzn.to/3nzMXUP
Heat Shrink: https://amzn.to/3nzMXUP
My Favorite Coax Source: https://rfconnection.com/ I usually just ask them to add the BNC to one end for me. It's worth the extra cost to me.