Build it: 2 meter Tape Measure Yagi Antenna - QRZ Forums
2017年2月7日 · On this episode of Ham Radio Q&A, I build a 2 meter tape measure yagi antenna. This lightweight antenna is perfect to use for fox hunts or as a portable directional antenna for public service events. There are plenty of plans online to build your own tape measure antenna, but no good step by step video that takes you through the process.
Ultimate Arrow Antenna Modifications - QRZ Forums
2022年1月26日 · While Moxon is one of the smallest directional antenna it still broadband so no need to tune every time and has great, impossible for small Yagis, F/B that is fine too. Needless to say 2m Moxon can be mechanically combined with electrically apart 70cm antenna (Moxon, Yagi, whatever) on the same boom as easy as Yagi. Just my two cents.
VHF/UHF antenna polarization and testing - QRZ Forums
2017年4月20日 · People usually model masts along with the antenna to see effects in SWR and pattern. Clearly your metal mast-system is a resonant structure. It is smack in the nearfield when your antenna is vert pol. Horizontal it is cross pol and the mutual coupling (and thus effect) is low. Again your antenna is NOT wideband. 73 Chip W1YW
Ham Radio - My durable and portable 2 meter Yagi antenna.
2020年12月27日 · so to use your reference antenna here we have a boom of 3.4 and 7.3m The first at 3.4 will be a 7 element ant 6x1 +1x 2.8dbi gain approx 8.8 dbi not the claimed 12+ dbi gain but the bigger 7.3m ant will have 15 elements. 14 x 1 + 2.8 dbi 16.8dbi against the claimed 15.9dbi that's just 0.9db of my guide calculator..
What is an Inverted U Antenna? Also known as Bent Dipole Antenna
2024年1月28日 · You can also expand on this antenna method and design a small space yagi antenna. I built a 20 meter 2 element yagi along these same guidelines a few years ago to save horizontal space because I was using the parts from a 15 meter 2 element yagi to build the shortened 20 pseudo yagi.
G0KSC OWA Yagi antenna design site - QRZ Forums
2009年3月6日 · The OWA (Optimised Wideband Array) Yagi is a very effecient Yagi. Whilst on paper, gain figures may appear less them lower impedance designs, no matching device is required, resulting in zero matching loss. Add this to design time ensuring high efficiency antennas and the result can be an antenna that radiates 100 Watts of every 100 Watts inserted.
Ham Radio - My durable and portable 2 meter Yagi antenna.
2020年12月27日 · Ham Radio - My durable and portable 2 meter Yagi antenna. KB7TBT, Dec 27, 2020 #1. KI5DNS, ...
Build an EASY 10 Meter (28 MHz) Vertical Antenna for DX!
2023年1月24日 · The T2LT is a Great Antenna. I have made them for 440/144 and 6,10,12,15,17, ahd 20 meters and they are all mounted on 10' TV masts, using squid poles, on my 4' chain link fence as a great counterpoise, which surround my property. I have a 2 Element Lightening Bolt Quad to compare them to as well.
The EASIEST Antenna to build for Six Meters using one piece of …
2020年12月8日 · This is a really simple and easy to construct antenna that will get you on the air on the six meter band using only RG-58 coax! I needed a quick and simple antenna for my WSPR beacon over the summer season. Enter the coaxial dipole or aka flowerpot antenna!
Backpacking 2m 5 element Yagi. - QRZ Forums
2020年12月16日 · This was a fun project I did recently on building a backpacking 2m 5 element Yagi that weighs 21 oz. The longest part is 25" but could be shorter. I used materials I had on hand for the boom so if you had a longer piece of boom material you could make the sections a …