FR2399766A1 - Systeme de reglage automatique du gain des repeteurs dans un systeme de transmission a division de frequence - Google Patents
Systeme de reglage automatique du gain des repeteurs dans un systeme de transmission a division de frequenceInfo
- Publication number
- FR2399766A1 FR2399766A1 FR7821477A FR7821477A FR2399766A1 FR 2399766 A1 FR2399766 A1 FR 2399766A1 FR 7821477 A FR7821477 A FR 7821477A FR 7821477 A FR7821477 A FR 7821477A FR 2399766 A1 FR2399766 A1 FR 2399766A1
- Authority
- FR
- France
- Prior art keywords
- amplifier
- repeaters
- control device
- gain
- preadjustment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Ce système de réglage automatique du gain des répéteurs dans un système de transmission à division de fréquence est basé sur le principe du post-réglage. Chaque répéteur R est constitué par un amplificateur de post-réglage AM1 , à la sortie duquel sont prévus des moyens RG aptes à relever l'atténuation d'une fréquence pilote émise par la station émettrice ST et à émettre un signal de réglage du gain et à la sortie de l'amplificateur de post-réglage AM1 est aussi connecté un amplificateur de pré-réglage AM 2 qui reçoit le signal de réglage disponible à la sortie desdits premiers moyens RG au moyen de deuxièmes moyens MT aptes à en effectuer la multiplication par un coefficient x présentant une valeur préfixée.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2643277A IT1114913B (it) | 1977-08-03 | 1977-08-03 | Sistema di regolazione automatica del guadagno dei ripetitori in un sistema di trasmissione a divisione di frequenza |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2399766A1 true FR2399766A1 (fr) | 1979-03-02 |
Family
ID=11219482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7821477A Withdrawn FR2399766A1 (fr) | 1977-08-03 | 1978-07-20 | Systeme de reglage automatique du gain des repeteurs dans un systeme de transmission a division de frequence |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5427712A (fr) |
| AU (1) | AU3815878A (fr) |
| BR (1) | BR7804235A (fr) |
| DE (1) | DE2834090A1 (fr) |
| FR (1) | FR2399766A1 (fr) |
| IN (1) | IN149210B (fr) |
| IT (1) | IT1114913B (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162534A (en) * | 1981-03-31 | 1982-10-06 | Nec Corp | Automatic gain control circuit |
| JPS5939989U (ja) * | 1982-09-07 | 1984-03-14 | 三菱電機株式会社 | 電気機器の冷却装置 |
-
1977
- 1977-08-03 IT IT2643277A patent/IT1114913B/it active
-
1978
- 1978-04-11 IN IN398/CAL/78A patent/IN149210B/en unknown
- 1978-07-03 BR BR7804235A patent/BR7804235A/pt unknown
- 1978-07-19 AU AU38158/78A patent/AU3815878A/en active Pending
- 1978-07-20 FR FR7821477A patent/FR2399766A1/fr not_active Withdrawn
- 1978-08-01 JP JP9323878A patent/JPS5427712A/ja active Pending
- 1978-08-03 DE DE19782834090 patent/DE2834090A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| AU3815878A (en) | 1980-01-24 |
| IT1114913B (it) | 1986-02-03 |
| BR7804235A (pt) | 1979-04-10 |
| JPS5427712A (en) | 1979-03-02 |
| DE2834090A1 (de) | 1979-02-22 |
| IN149210B (fr) | 1981-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Withdrawal of published application |