#347: Quick test of the 40m Halfwave End-Fed antenna using a 49:1 transformer / UNUN @w2aew

#347: Quick test of the 40m Halfwave End-Fed antenna using a 49:1 transformer / UNUN @w2aew

Uploaded February 2022 | Updated September 2026, 2 weeks ago

This is a followup video to #344 where I assembled the 49:1 UNUN kit from HF-Kits / ARRL. Here I show finalizing the antenna, getting it in the air, and running an SWR sweep on it. Here is a link to the 49:1 kit I used:
youtu.be/7XUWOSy_CVE

#347: Quick test of the 40m Halfwave End-Fed antenna using a 49:1 transformer / UNUN

#352: The ULTIMATE Electrical Engineers Toolkit: Analog Designers Edition

#220: Drake 2B Serendipity: N2CQR and the Soldersmoke podcast

#400: Measuring the Minimum Discernable Signal and bandwidth of the 40m Direct Conversion receiver.

#248: Tune Bandpass Cavity Filter using Return Loss w Directional Coupler

#235: Basics of Analog Panel Meters | Analog meter movements | DArsonval

#313: Why a VNA needs to be calibrated | how to calibrate a nanoVNA

#261: Status Update | Frequently Asked Questions | Thanks!

#314: How to use the NanoVNA to sweep / measure an antenna systems SWR and optimize its tuning

#255: Vintage Tech: Book review ABC of Electricity from 1889 endorsed by Edison

#390 Kit Build: CFT1 5-band CW Field Transceiver - build / adjust / align / test

#365: Ham Radio: What is your CW straight key sending style?

#347: Quick test of the 40m Halfwave End-Fed antenna using a 49:1 transformer / UNUN