Quarter Wavelength Vertical Needs No Trimming

Here are some more vertical antenna suggestions from Australian radio amateur Peter Parker (VK3YE).

In this case, Peter builds a vertical antenna that requires no trimming to be operational.  

If you can't see the video, please insert this title URL into your browsers search box:

https://www.youtube.com/watch?v=9ObV_OpK1rQ

This is post 2745 in a continuing series of simple ham radio antennas.

Here are some comments from Peter:

You don't always need to precisely cut your antenna if you have a part of it coiled up and switched. Here I take 4.6m of thin insulated wire and connected it to five shorter pieces (about 10cm long) wired across a rotary switch. This allows its length to be varied. The advantage of this is that you can cover about a 10% frequency range rather than the 3% that a fixed length antenna covers. This experiment was with a 1/4 wavelength vertical on 14 MHz but if you want to do it for 28 MHz I would suggest using about 2.3m for the vertical element and pieces of 5cm long across the contacts of the rotary switch. PS: If you liked this video please consider supporting Amateur Radio VK3YE by: * Subscribing on YouTube, * Checking my books page at https://books.vk3ye.com​​​​​​​​​​​​​​​​ to see if any appeal, * Shopping on Amazon via: https://amzn.to/3iiDQXv​​​​​​​​​​​​​​​​ , or * Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you)

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).