Assertion: antenna's frequency | /r/HasProperty | low
Facets:
Source sentences:
text: If the helix or reflector is too small (the frequency is too low), the efficiency is severely degraded.
text: If the horn is too small or the wavelength is too large (the frequency is too low), the antenna will not work efficiently.
text: The capacitively loaded antennas used at low frequencies have extremely narrow bandwidths, and therefore if the frequency is changed the loading coil must be adjustable to tune the antenna to resonance with the new transmitter frequency.
text: T-antennas are typically used at low frequencies where building a full-size quarter-wave high vertical antenna is not practical, and the vertical radiating wire is often very electrically short: Only a small fraction of a wavelength long, 1/10 λ or less.
text: T-antennas are typically used at low frequencies where building a full-size quarter-wave high vertical antenna is not practical, and the vertical radiating wire is often very electrically short: Only a small fraction of a wavelength long, 1/10 λ or less.