A Different 20m Vertical Antenna

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Thanks to Tim (G5FM) for this “different 20m Vertical Antenna.”

According to Tim, a 3/8 wavelength vertical antenna provides several advantages over 1/4 wave, 1/2 wave, and end-fed halfwave (EFHW) vertical antenna systems.

Among the advantages are a shorter radiating element and dual-band operation (20m and 10m bands).

The 3/8 wavelength antenna is a good choice for any portable operation, such as POTA and SOTA.

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Thanks for joining us today.

Russ Roberts (KH6JRM/AL0HA).

Here are some comments from Tim (G5TM):

Many of us have used quarter and half-wave vertical antennas. But let’s see how a 3/8 wave vertical will work on 20m. A very useful alternative to the 1/4 and 1/2 wave verticals. With some added bonuses. 73! Tim G5TM October 2026, UK.
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TIM G5TM Hands-On Ham Radio

17.8K subscribers

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kh6jrm@gmail.com

I am the retired news director of Pacific Radio Group stations on the Island of Hawaii. I am a retired Lt. Col., USAF Reserve. I am a FCC-licensed Amateur Radio Operator, holding the Amateur Extra Class License. I am a substitute teacher for the state of Hawaii Department of Education.

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