Use a loop if you can
Which full-wave loop to try first: 40 meter, 80 meter, 160 meter, more?
160m
Articles including references to the 160m amateur radio “top” band.
NVIS 80m with 160m Full Wave Loop is less than ideal
Big HF loop antennas provide great performance, but they can’t do everything. 160 meter full wave loops won’t work well for NVIS when used at 3.8 MHz.
The 43 foot vertical – The answer to everything?
The 43 foot vertical antenna is a popular height being promoted by several antenna manufacturers for 160 to 10 meters. Let’s see why and examine some advantages and pitfalls.