This is a homemade DBJ-1 dual-band antenna (VHF-UHF). I made this antenna based on the QST article of Dr. Ed Fong WB6IQN ([ Ссылка ]).
I checked my antenna on Anritsu S332E Antenna Analyzer. See the results.
On this antenna, I made a change of the RG174A coaxial cable for an RG223 ... I could not find the RG174A cable locally.
I used the RG223 because they have similar electrical characteristics.
In general terms, this antenna resonates on VHF and UHF band.
