GB1412643A - Test apparatus for omega navigation system radio receivers - Google Patents
Test apparatus for omega navigation system radio receiversInfo
- Publication number
- GB1412643A GB1412643A GB4402472A GB4402472A GB1412643A GB 1412643 A GB1412643 A GB 1412643A GB 4402472 A GB4402472 A GB 4402472A GB 4402472 A GB4402472 A GB 4402472A GB 1412643 A GB1412643 A GB 1412643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- omega
- navigation system
- test apparatus
- radio receivers
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/022—Means for monitoring or calibrating
- G01S1/026—Means for monitoring or calibrating of associated receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
1412643 Radio navigation REDIFON Ltd 27 Sept 1973 [22 Sept 1972] 44024/72 Heading H4D A photo-sensitive device controls the phase of the output signals of a signal generator at predetermined intervals. As applied to testing apparatus for an " Omega " receiver a phototransistor is adapted to be clipped on to a " format " lamp on the receiver which flashes in synchronism with the internally generated Omega sequence format. The signal generator provides a pair of signals, one of which is of fixed phase and the other is switched in 0, 90, 180, 270 degrees phase steps and is utilized to check the correct operation of the receiver.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4402472A GB1412643A (en) | 1972-09-22 | 1972-09-22 | Test apparatus for omega navigation system radio receivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4402472A GB1412643A (en) | 1972-09-22 | 1972-09-22 | Test apparatus for omega navigation system radio receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1412643A true GB1412643A (en) | 1975-11-05 |
Family
ID=10431399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4402472A Expired GB1412643A (en) | 1972-09-22 | 1972-09-22 | Test apparatus for omega navigation system radio receivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1412643A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560075A1 (en) * | 1992-02-21 | 1993-09-15 | Alcatel SEL Aktiengesellschaft | Mobile testing equipment for GSM radio telephones |
-
1972
- 1972-09-22 GB GB4402472A patent/GB1412643A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560075A1 (en) * | 1992-02-21 | 1993-09-15 | Alcatel SEL Aktiengesellschaft | Mobile testing equipment for GSM radio telephones |
US5410753A (en) * | 1992-02-21 | 1995-04-25 | Szabo; Laszlo | Mobile test set for a mobile-radio system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |