Diamond Antenna NR770HBNMO with K515SNMO mobile antenna review
After three years of mobile operation, I review the Diamond Antenna NR770HBNMO with appropriate K515SNMO mount including pattern measurements.
Ham Radio . Magnum Experimentum
Antennas, experiments, engineering and other articles of interest to radio folks.
After three years of mobile operation, I review the Diamond Antenna NR770HBNMO with appropriate K515SNMO mount including pattern measurements.
Thule roof rails increased my VHF antenna mounting options on my Subaru Forester.
Simulations suggest end-fed and center-fed half-wave dipoles share sensitivity to various feedline lengths, but in differing and manageable ways.
Measurements and analysis suggest why quarter-wave stubs fail to completely isolate radiator conductors on multi-band antennas including the popular rollup 2m/440 J-Pole products. Possible improvements are shown.
We test a popular VHF/UHF dual band antenna at various angles to reveal antenna tilt on a vehicle matters only in certain circumstances.
The Diamond Antenna NR770HBNMO paired with their K515S insulated luggage rack mount provides measurable and observable upgrade for my 2015 Subaru Forester 2m/440 mobile.
Despite some antenna gain hype, the Diamond Antenna CP22E 2m base station antenna is a remarkable design achieving 5 dBi directivity in a slim low-profile design.