To Balun or not to Balun... - QRZ Forums
Feb 19, 2004 · Your friend who put the balun in the antenna where it worked "awful on all but 80 meters" was likely using the dime-store voltage balun.... Choke baluns like the W2AU/W2DU …
Ham Radio - The Doublet. An old but good multi-band single …
Dec 9, 2019 · Ham Radio - The Doublet. An old but good multi-band single dipole antenna. Part 1 Discussion in ' Amateur Radio News ' started by KB7TBT, Dec 9, 2019.
Build your own 9:1 unun antenna on the cheap! - QRZ Forums
Aug 31, 2017 · My next video will be on experimenting with a 'multi-ratio' balun from Palomar Engineers called the 'CUBE' a 2.25:1, 4:1 & 9:1 unun. Interested in showcasing the analyzer …
What decides how much power a 1:1 current balun on toroid will …
Dec 2, 2025 · The power handling capacity of a 1:1 current balun on a toroid is primarily determined by its ability to manage heat dissipation and avoid magnetic core saturation.
What is a Guanella Balun? | QRZ Forums
Feb 14, 2024 · Balun is a type of transformer. A 1:1 balun will connect to a 50 Ohms unbalanced line and present a balanced output at 50 Ohms. In its simplest form, a 1:1 Guanella balun is an …
How to check the 49:1 unun for EFHW with NanoVNA | QRZ Forums
Apr 12, 2025 · Simple bench test for the impedance transformation of 49:1 Unun used for End Fed Half Wave (EFHW) dipole antennas which are quite popular for ham radio...
How to Blow-up Your Balun - K6UDA Radio Episode 23
Aug 21, 2016 · The proper use of a BALUN should be on a resonant antenna only. Do not try to use an antenna that contains a BALUN on a different band that the antenna was not designed …
G0KSC Antenna Modelling YouTube Channel | QRZ Forums
Nov 30, 2020 · The second image shows a low noise LFA UHF Yagi with through boom elements, insulators and a choke balun attached to the feed point within Ansys HFSS but at over …
Reduce RFI with a Common Mode Choke | Page 6 | QRZ Forums
Sep 29, 2021 · A solid steel conductor keeps it's shape around the toriod much better. And if single braided shield would be a problem, then would a balun made of discrete wires be …
Spark Plug Antenna: setup and first try - QRZ Forums
Oct 9, 2021 · Spark Plug Antenna: setup and first try Discussion in ' Amateur Radio News ' started by K9KMV, Oct 9, 2021.