CH217893A - Zweifach-Trägerfrequenzanlage. - Google Patents
Zweifach-Trägerfrequenzanlage.Info
- Publication number
- CH217893A CH217893A CH217893DA CH217893A CH 217893 A CH217893 A CH 217893A CH 217893D A CH217893D A CH 217893DA CH 217893 A CH217893 A CH 217893A
- Authority
- CH
- Switzerland
- Prior art keywords
- carrier frequency
- frequency system
- dual carrier
- dual
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/045—Filters applied to frequency transposition
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Radio Relay Systems (AREA)
- Small-Scale Networks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE217893X | 1940-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH217893A true CH217893A (de) | 1941-11-15 |
Family
ID=5831012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH217893D CH217893A (de) | 1940-03-28 | 1941-03-13 | Zweifach-Trägerfrequenzanlage. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2328450A (de) |
CH (1) | CH217893A (de) |
FR (1) | FR871107A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR908688A (fr) * | 1942-02-20 | 1946-04-16 | Constr Telephoniques | Système de trafic à haute fréquence sur lignes de transport d'énergie |
US2695927A (en) * | 1951-12-29 | 1954-11-30 | Bell Telephone Labor Inc | Multichannel carrier telephone system |
CA1159972A (en) * | 1980-05-15 | 1984-01-03 | Zdzistaw A. A. Krajewski | 2-wire frequency division multiplex system |
US4996709A (en) * | 1988-05-12 | 1991-02-26 | Tandy Corporation | Intercom telephone |
-
1941
- 1941-03-13 CH CH217893D patent/CH217893A/de unknown
- 1941-03-27 FR FR871107D patent/FR871107A/fr not_active Expired
- 1941-10-10 US US414415A patent/US2328450A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR871107A (fr) | 1942-04-09 |
US2328450A (en) | 1943-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH218369A (de) | Klebmittel. | |
CH266918A (de) | Radiobake. | |
CH217893A (de) | Zweifach-Trägerfrequenzanlage. | |
CH226656A (de) | Tragwerk. | |
CH217641A (de) | Kurzwellenantenne. | |
DK62183C (da) | Dobbeltbærefrekvensanlæg. | |
CH216838A (de) | Trägerfrequenz-Zweidraht-Anlage. | |
CH217894A (de) | Mehrfach-Trägerfrequenz-Anlage. | |
CH228416A (de) | Haspelkuve. | |
CH227467A (de) | Trägerfrequenzübertragungsanlage. | |
DK61766C (da) | Antennesystem. | |
NL144437B (nl) | Microschakeling. | |
CH226129A (de) | Adcock-Antennenanlage. | |
CH218297A (fr) | Blocco di costruzione. | |
DK64844C (da) | Radioorienteringsanlæg. | |
ES5976Y (es) | Vitrina-cartelera anunciadora. | |
DK61470C (da) | Fyrrist. | |
DK73888C (da) | Bærebølgesignalanlæg. | |
CH224074A (de) | Modulator der Trägerfrequenztechnik. | |
CH229870A (de) | Kurzwellen-Adcock-Antennenanordnung. | |
FI20155A (fi) | Tvål- resp. såplösningsutdelare för tvättrum | |
DK62630C (da) | Motriksikring. | |
DK59477C (da) | Snaplaas. | |
DK60418C (da) | Magasinovn. | |
DK60855C (da) | Ajlebeholder. |