Varianten
| Rundstrahl- |
omnidirectional
|
Varianten
Circularly symmetric omnidirectional antenna patterns also provide poor separation between sky and ground signals, limiting rejection of ground-based jammers, interference sources, and thermal noise.
Screw-on, screw-off standard omnidirectional antennas are used for transmission and receiving.
Sinclair Technologies has developed a VHF fiberglass omnidirectional antenna using low PIM antenna design techniques.
Most call center agents and supervisors are familiar with the two types of headset microphones most prevalent in call centers - noise canceling and omnidirectional microphones.
Audio hardware included mixers, speakers, and both omnidirectional and directional microphones; the sound setup required some care to avoid echo and ensure high fidelity, especially when large music groups were playing.
Other
M-translate