tag:blogger.com,1999:blog-1592992209402300549.post4920724844737021939..comments2024-03-29T07:33:41.566-04:00Comments on The Silicon Graybeard: A Little More on RF Power Safety and Ham RadioSiGraybeardhttp://www.blogger.com/profile/00280583031339062059noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1592992209402300549.post-26122745369082781582020-05-29T20:42:08.505-04:002020-05-29T20:42:08.505-04:00An antenna analyzer wouldn't be the tool for t...An antenna analyzer wouldn't be the tool for this. What you need to know is the power getting to the antenna, which you could measure with a power meter, and the antenna gain. Antenna gain is very difficult to measure accurately "in the real world", so you usually use a published or modeled value. <br /><br />For (hand waving) UHF up through microwaves, they're measured in <a href="https://antennatestlab.com/antenna-education-tutorials/what-is-an-anechoic-chamber" rel="nofollow">anechoic test chambers</a>. For an HF antenna, I don't think you can get gain measurements that are as accurate as they get in one of those chambers. Antennas interact wildly with their environment. It's their job. <br /><br />What antenna analyzers are great for is building and checking out your antennas, like you say. I just did a hack to my antennas to get them to work with my radio's built-in antenna tuner, and it all centered on measuring the antenna's impedance with antenna analyzer. Building your own antennas is much harder without a good antenna analyzer, also called a Vector Analyzer, or a Vector Network Analyzer. <br /><br />I'll be doing a post about this relatively soon. <br /><br />SiGraybeardhttps://www.blogger.com/profile/00280583031339062059noreply@blogger.comtag:blogger.com,1999:blog-1592992209402300549.post-5982650505362883082020-05-29T18:40:49.590-04:002020-05-29T18:40:49.590-04:00Interesting subject. Would a antenna analyzer help...Interesting subject. Would a antenna analyzer help in these calculations? And in that do you use a analyzer to build or check your antennas? Would one be a help to someone who wants to begin building their own antennas? Thanks I read your blog everyday and find it worthwhile . Tex.Anonymousnoreply@blogger.com