Antenna Feedline Optimal Length for Resonance
Updated 4-18-2024 I recently discovered a YouTube video that shows how to cut an antenna’s feedline length to achieve resonance (See below). I then discovered that there are many such erroneous YouTube videos telling you that you can use “jumpers” to improve your antenna performance. There are no benefits to these practices! But this begs the...
April Meeting: EZNEC Antenna Segments Made Easy
More on EZNEC at the April 2024 club meeting. Have you dabbled with EZNEC antenna modeling software (or any of the other free NEC derived antenna modeling software applications) and found it just did not work out for you? Join the crowd. At the April meeting of the Chelsea Amateur Radio Club, Wesley Cardone (N8QM) will...
Deep Dive J-Pole Computer Model
Here are the slides for tonight’s (March 13, 2024 at 7 PM Eastern DST) presentation. This will be by video conference using the usual club Zoom account. Click here for a direct link. For more information, please see the earlier blog post. Author Wes Cardone Trustee WD8IEL Chelsea Repeater View all posts
EZNEC J-Pole Modeling (and Deep-Dive)
A Qualitative Presentation At last month’s meeting (February 2024), we introduced the free EZNEC antenna modeling software. It was a very introduction-oriented presentation that explained what it was all about. For the March 2024 meeting (Tuesday, March 12th), we will be presenting concepts relating to what EZNEC software demands from you, the user. That is, what...
Optimize the Hustler 4-BPV HF Antenna
With the help of Jim Grissom (WD8RFW), we embarked upon an ambitious program to consider if his HF vertical, 4-band, antenna could be optimized. Whether it is actually optimized or not is somewhat irrelevant although it is known that our task will optimize the antenna for its 40 meter band. Our task to to see if...
Learn Amateur Radio
We, at the Chelsea Amateur Radio Club, are here to help you get on the air circumventing the globe. Do you need to be pointed in the right direction? Were you wondering where exams are given for FCC Amateur Radio Licenses? Were you wondering if Amateur Radio would be for you? We can’t guarantee that we...
March Meeting: Modeling Jim’s HF Antenna
At the Chelsea Amateur Radio Club we try not to let you down. Last month (February, 2024) we introduced you to the EZNEC antenna modeling software. Our plan for the March meeting (March 12, 2024) is to use either EZNEC or 4NEC2 to model and simulate Jim Grissom’s (KD8RFW) back yard HF trapped vertical antenna. We...
EZNEC Intro Given at 2024 Feb 13th Club Meeting
It was about two years ago that the EZNEC Antenna Modeling Software was made free. Wes Cardone (N8QM) purchased this software several years ago (before it was made free) and has found it extremely capable and says that it should not be considered as limited to those with extreme electromagnetics knowledge. This stuff is for the...
