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Records 1 to 5 of 5

Category Description
ANTENNAS NVIS: Near Vertical Incidence Skywave
NVIS, or Near Vertical Incidence Skywave, refers to a radio propagation mode which involves the use of antennas with a very high radiation angle, approaching or reaching 90 degrees (straight up),
ANTENNAS J-Pole Antennas for 2 Meters
Plans for building a 2 meter J-Pole Antenna
ANTENNAS Near Vertical Incident Scattering Antenna
Near Vertical Incident Scattering Antenna information
ANTENNAS Near-Real-Time F2-Layer Critical Frequency Map
Useful information for choosing appropriate band for NVIS antennas.
ANTENNAS Tape Measure Antenna
Designed for use when portability and operation on different frequencies are primary the considerations. The antenna is housed in a molded plastic housing holding two stainless steel tapes calibrated in meters, decimeters and centimeters.