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Ham Radio Live Show 221 talks about the importance of using remote tuners when using a multi band non-resonant antenna instead of the internal tuner in your shack. The reason is because your antenna impedance is so far away from what your transmitter or amplifier needs to safely operate, that much, if not most of your power from your transmitter is lost as heat through your coax.
On top of that, if you’re using coax with a higher loss factor, The ground gets heated up even more and even less of your precious power from your radio or amplifier is sent out on your antenna.
This is why a remote tuner is ESSENTIAL at the feed point of the antenna. Instead of sending a high VSWR to your shack (even with the best of coax available today) you’re hitting the ground up more than you’re sending out a signal over your antenna.
At 6:43 of this video, get today’s HF Forecast.
At 11:47 of this video, find out the reason why a remote tuner can be so important when using a non resonant antenna.
MFJ Remote Tuners noted in this video:
MFJ 926b, 200W: mfjenterprises...
MFJ 993BRT 300W mfjenterprises...
MFJ 994BRT, 600W: mfjenterprises...
MFJ 998RT 1500W mfjenterprises...
For the antenna loss information, click here: antennatestlab...
For the Coax Loss Calculator shown on the show, click here: www.qsl.net/co...
This was hopefully a helpful show for people to
understand the importance of a remote tuner for a multiband non resonant antenna and of using quality feedline, no matter what antenna you’re using. You’ll get more power out of your transmitter.
Thanks a lot for watching the show. I sincerely appreciate it.
Gunter, DK5ONV
Tom A92GW
Rod K7LAP
Larry K7HN
I welcome your questions as well as your comments about the show. It isn’t for everyone. I realize that. The main audience is for people who aren’t in amateur radio and inspire them. to get their ham radio license. Please reach me at the shows email address which is: CQHamRadioLive@gmail.com
You can study for ANY of the UK Ham Radio License Exams at this link. But STUDY With a ham club or online company that specializes in helping UK amateurs pass their exams. I’m not a substitute for study! I do try to put things in layman‘s terms so you can understand them better to help pass your test.
Big thanks to Paul Herrman, N0NBH, for his great propagation webpage showing an incredible amount of information about the sun and how it effects ham radio. I get some of my information from his webpage. You can find it here: www.solarham.net
radiotutor.uk/...
US Ham Radio Test help can be found at this link: aa9pw.com/amate...
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MFJ has many accessories that can help make sure ham shack much more effective! From antenna analyzers to amplifiers and antennas to noise canceling devices MFJ has you covered from A to Z! Find them at www.MFJenterprises.com
24 авг 2024