Frequency modulation system of multifrequency section intercom
The utility model provides a frequency modulation system of multifrequency section intercom, the unit separator of one -level modem goes out second frequency segment signal and sends the unit to second grade modem with second frequency segment signal in the frequency modulation system, sends the fir...
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The utility model provides a frequency modulation system of multifrequency section intercom, the unit separator of one -level modem goes out second frequency segment signal and sends the unit to second grade modem with second frequency segment signal in the frequency modulation system, sends the first frequency segment signal after the demodulation to the control unit, the second of second grade modem unit after with demodulation segment signal frequently sends to the control unit delayed time processing, the control unit sends the second frequency segment signal of transmission to time control signal transceiver unit, and signal transceiver unit sends control command to time control signal transceiver unit to make second frequency segment signal launch by second grade receiving and dispatching antenna. The utility model discloses a frequency modulation system sets up two -stage modem unit to realize isolating the signal of two frequency channels from the radiofrequency signal who accepts, carry out the respo |
|---|