GB217585A - Improvements in radiogoniometers - Google Patents

Improvements in radiogoniometers

Info

Publication number
GB217585A
GB217585A GB14051/24A GB1405124A GB217585A GB 217585 A GB217585 A GB 217585A GB 14051/24 A GB14051/24 A GB 14051/24A GB 1405124 A GB1405124 A GB 1405124A GB 217585 A GB217585 A GB 217585A
Authority
GB
United Kingdom
Prior art keywords
frame
point
earthed
vertical
battery
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
GB14051/24A
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB217585A publication Critical patent/GB217585A/en
Expired legal-status Critical Current

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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/12—Means for determining sense of direction, e.g. by combining signals from directional antenna or goniometer search coil with those from non-directional antenna
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna
    • G01S3/065—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna by using non-directional aerial
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
    • G01S3/085—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems by using spaced loop aerial systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

217,585. Bellini, E. June 11, 1923, [Convention date]. Directive s i g n a l. ling. - In order to eliminate the vertical or non - directional effect of an ordinarv frame aerial or radiogomometer, the middle point of the frame winding, or , as shown in the Figure, the centre point of the combined system of fixed coils B, B and search coil C, is earthed at T. The equipotential point of the filament-heating battery is also earthed at P, a grid biasing battery being inserted if necessary to adjust the mean grid potential to its optimum point. By inserting a resistance R of suitable value in the earth lead from the frame, a sufficient residue of the vertical effect may be retained and utilized to remove the diametral ambiguity of the frame system when used alone.
GB14051/24A 1924-06-10 Improvements in radiogoniometers Expired GB217585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB111907D DE417134C (en) Radio protractor

Publications (1)

Publication Number Publication Date
GB217585A true GB217585A (en) 1925-01-08

Family

ID=6993062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14051/24A Expired GB217585A (en) 1924-06-10 Improvements in radiogoniometers

Country Status (6)

Country Link
US (1) US1723461A (en)
BE (1) BE340848A (en)
DE (1) DE417134C (en)
FR (1) FR567587A (en)
GB (1) GB217585A (en)
NL (1) NL17451C (en)

Also Published As

Publication number Publication date
DE417134C (en) 1925-08-07
FR567587A (en) 1924-03-05
NL17451C (en)
BE340848A (en)
US1723461A (en) 1929-08-06

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