FR887568A - Improvements to transmission devices - Google Patents

Improvements to transmission devices

Info

Publication number
FR887568A
FR887568A FR887568DA FR887568A FR 887568 A FR887568 A FR 887568A FR 887568D A FR887568D A FR 887568DA FR 887568 A FR887568 A FR 887568A
Authority
FR
France
Prior art keywords
transmission devices
transmission
devices
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR887568A publication Critical patent/FR887568A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/30—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
FR887568D 1941-11-07 1942-11-07 Improvements to transmission devices Expired FR887568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE228782X 1941-11-07

Publications (1)

Publication Number Publication Date
FR887568A true FR887568A (en) 1943-11-17

Family

ID=5867409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR887568D Expired FR887568A (en) 1941-11-07 1942-11-07 Improvements to transmission devices

Country Status (3)

Country Link
CH (1) CH228782A (en)
FR (1) FR887568A (en)
NL (1) NL64266C (en)

Also Published As

Publication number Publication date
CH228782A (en) 1943-09-15
NL64266C (en)

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