The second advantage of operating at higher frequencies is greater accuracy.

This allowed them to operate at higher frequencies than octal tubes.

Digital phones, in particular, are likely to fade as the distance from a cell site increases because they operate at higher frequencies.

They operate at frequencies between about 3 and 100 GHz or more.

They are especially important in isolating circuit units operating at different frequencies.

Most stations had more than one set of each antenna, tuned to operate at different frequencies.

A further advantage is that the radar can operate effectively at relatively low frequencies.

This operated at relatively low frequencies to obtain long range.

Electromagnetic metamaterials in general are designed to operate at different frequencies.

The tube had a gain of about eight and operated at frequencies well above 10 kHz.