EP1950829A1 - Antenne parabolique portable - Google Patents

Antenne parabolique portable Download PDF

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Publication number
EP1950829A1
EP1950829A1 EP08150596A EP08150596A EP1950829A1 EP 1950829 A1 EP1950829 A1 EP 1950829A1 EP 08150596 A EP08150596 A EP 08150596A EP 08150596 A EP08150596 A EP 08150596A EP 1950829 A1 EP1950829 A1 EP 1950829A1
Authority
EP
European Patent Office
Prior art keywords
satellite dish
dish
support
portable
legs
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Withdrawn
Application number
EP08150596A
Other languages
German (de)
English (en)
Inventor
Robert Charlton
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.)
Melksham Satellites Ltd
Original Assignee
Melksham Satellites Ltd
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 Melksham Satellites Ltd filed Critical Melksham Satellites Ltd
Publication of EP1950829A1 publication Critical patent/EP1950829A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole

Definitions

  • This invention relates to a portable and adjustable satellite dish. More specifically but not exclusively this invention relates to a portable and adjustable satellite dish which is manually adjustable.
  • a portable system is required to be regularly reset and adjusted according to the position of it and its location in the world. This can be particularly problematic since the surface upon which the dish is mounted may be uneven and cause the dish to be unstable.
  • a satellite dish be transported by recreational vehicles for use on site and then set by the user.
  • Elevation refers to the angle between the satellite, and the local horizontal plane. It is the up-down angle.
  • Most domestic satellite dishes have an offset angle of elevation, this varies according to the dish manufacturer but typically offset angles are approximately 22° to 28°.
  • a dish with an offset angle of around 26° would need to be pointed at 64° from the vertical.
  • Most dishes are provided with a back bracket showing pre-marked elevation degrees. These take into account the offset angle of the satellite dish but are only treated as an approximate guide as they rely on the pole (to which the dish is mounted) being truly vertical. In other European locations the elevation angle is normally between the range of 15° to 41°.
  • This elevation angle may be set using an inclinometer. These typically have a rotary scale marked in degrees and the dish is pivoted to the predetermined degree angle. However it is sometimes difficult to accurately set this angle as the offset angle of the dish is unknown.
  • Azimuth refers to the rotation of the whole antenna around a vertical axis. It is the side to side angle. Typically you loosen the main mount bracket and swing the whole dish all the way round in a 360° circle. By definition North is 0°, East is 90°, South is 180° and West is 270°. North can also be called 360°.
  • a satellite may be found by presetting the elevation accurately and then swinging the whole antennae boldly in an azimuth until the signal blocks up so in present systems an approximate azimuth angle can sometimes work.
  • a portable satellite dish comprising at least one foldable support pivotably attached to the satellite dish and movable from a stowed position in which it lies adjacent to the satellite dish to an open and in use position where it supplies one support for the dish, part of the circumference edge of the dish itself supplying the second support.
  • the support mount comprises two legs such that the satellite dish has three points of contact and support, one being provided by itself.
  • the support bracket is provided with angle setting measurements.
  • the satellite dish comprises a spirit level to enable the amgle of elevation to be set accurately and straightforwardly.
  • the satellite dish comprises a receiver and a parabola reflector and is pivotably movable to a pre-determined position.
  • the receiver is attached to the highest vertical point of the circumference of the parabolic reflector.
  • a portable satellite dish and satellite dish mounting apparatus comprising at least two legs pivotally connected such that each leg is movable with respect to one another, one leg being arranged to support said satellite dish wherein the movement of said legs with respect to one another allows the satellite dish to be positioned to a predetermined angle of elevation.
  • a satellite dish 10 is shown in an extended and in use position of Figures 1 and 2 and comprises a parabolic reflective 12 and a receiver 14 connected to the reflector via a mounting (16).
  • a suitable cable (not shown) connects to a satellite receiver normally powered by the mains electricity supply, the receiver is attached to a television set.
  • a pair of legs 18 and 20 are pivotably connected to the parabolic reflector.
  • the legs 18 and 20 comprise outer parallel sections 24 and 26 extending to inner parallel sections 28 and 30 via angle portions 32 and 34.
  • the base outer parallel sections 24 and 26 of each leg have a rubber support 36 and 38 which prevents slippage once in position.
  • a parabolic reflector 12 comprises a lower bracket 40 attached by a suitable fixing mechanism (not shown) to the convex underside 42 of the parabolic reflector 12.
  • Two upper support brackets 44 and 46 are attached to the lower support bracket via fixing screws.
  • Each support bracket 44 and 46 is substantially semicircular and includes an arcuate slot 52 and 54.
  • the legs 18 and 20 are each pivotally connected to the upper and lower support brackets 44, 46 and 40 via a horizontal pivot pin 55.
  • a further fixing screw 56 is also connected to the inner parallel leg sections 28 and 30 via two pairs of washers 58 and 60 and via the arcuate slots 52 and 54 (the second set of washers are hidden from view) and is positioned just underneath the pivot pin 55.
  • the angle position of the legs 18 and 20 are adjustable by rotation about the pivot pin 55 and then fixed in the desired position by manually tightening the fixing mechanism 56.
  • Suitable graduation or indicia 62 are provided on one or each of the upper support brackets 48 and 50 along the arcuate slots 52 and 54. These measurements allow the satellite dish to be pivotably moved with respect to the legs so that the elevation of the satellite dish is at a predetermined angle.
  • An indicator pin 70 allows accurate positioning of the satellite dish 10.
  • a spirit level 64 is mounted on the upper support bracket 44.
  • the user determines the correct elevation angle required for their location.
  • the inclinometer is set to the required elevation. That is to say that the indicator 70 is at the required angle noted by the indicia 62.
  • the legs 18 and 20 are pulled back until the spirit level bubble is level. The legs 18 and 20 are only pulled back as required and not normally extended fully.
  • the combination of the spirit level device and the adjustable leg angle provides an accurate elevation reading once the elevation angle has been preset to the required elevation and the spirit bubble is level. It is also proposed to optionally supply a further spirit level located on the dish arm 16 This would enable a minor adjustment of the legs to be made whilst ensuring that the arm of the dish holding the reflector is in a horizontal plane and that the dish is not unduly tilted. This would provide a very accurate elevation.
  • This proposed second spirit level is not shown in the present drawings.
  • the legs 18 and 20 are opened out from their folded stow position by undoing the fixing screws 56. Once unfolded a suitable reasonably flat surface is found to position the system. This positioning is assisted by ensuring the spirit level bubble remains substantially central.
  • a suitable level surface is found and the legs are opened and the dish 10 is moved to a predetermined bearing (azimuth).
  • a predetermined bearing azimuth
  • the azimuth and elevation details are provided separately and are dependent on the geographic location of the user.
  • the strip is placed in the correct position the dish is mounted over it and aligned thereto.
  • the rim of the parabolic dish 12 provides a third support point, the other two support points being provided by the legs 18 and 20.
  • Adjustment of the elevation of the satellite dish is provided by pivoting it until the indicator 70 is at the predetermined angle or measurement of provided by the indicia 62. Once at this predetermined position, the fixing device 55 is tightened.
  • This satellite dish is particularly advantageous as it negates the need for a tripod support which is bulky and can be unstable. It allows the centre of gravity of the system to be lowered which inherently improves stability. The legs 18 and 20 are also able to be stowed away neatly under the dish 12.
  • a parabolic reflector 102 is connected to a receiver 104 and further comprises a mounting bracket 106.
  • the mounting bracket 106 is slideably mounted on a first support leg 108.
  • This first support leg is pivotally connected to two angled legs 110 and 111. Pivotal movement of said first support leg 108 with respect to said legs 110 and 111 is facilitated by a hollow T-shaped receiver 112.
  • This hollow T-shaped receiver 112 comprises a T bar end 114, the T bar receives the end 113 and 115 of the legs 110 and 111.
  • the connection is secured via a fixing screw 116.
  • a further fixing screw 117 fixes the hollow support bar 108 into the T-section 118 of the T bar 114.

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)
EP08150596A 2007-01-24 2008-01-24 Antenne parabolique portable Withdrawn EP1950829A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0701335.2A GB0701335D0 (en) 2007-01-24 2007-01-24 Portable satellite dish

Publications (1)

Publication Number Publication Date
EP1950829A1 true EP1950829A1 (fr) 2008-07-30

Family

ID=37872688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08150596A Withdrawn EP1950829A1 (fr) 2007-01-24 2008-01-24 Antenne parabolique portable

Country Status (2)

Country Link
EP (1) EP1950829A1 (fr)
GB (2) GB0701335D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199055A (zh) * 2014-08-29 2014-12-10 广州中海达卫星导航技术股份有限公司 Gnss接收机的电子气泡校验方法及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452925B (en) * 2007-09-19 2012-07-25 Mansar Ltd Portable satellite dish apparatus and support

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260208A (ja) * 1984-06-06 1985-12-23 Matsushita Electric Ind Co Ltd 車載アンテナ装置
EP0293877A2 (fr) * 1987-06-03 1988-12-07 Kabushiki Kaisha Toshiba Antenne parabolique portative
GB2208189A (en) * 1987-07-07 1989-03-08 Toshiba Kk Portable antenna apparatus for satellite communication
EP0683540A1 (fr) * 1994-05-20 1995-11-22 de los Angeles Gmür-Mosquera, Maria Antenne pour communication d'un satellite
US20020005816A1 (en) * 2000-07-17 2002-01-17 Carroll Ginther Satellite dish antenna alignment device
CA2494009A1 (fr) * 2001-05-30 2002-12-05 John R. Essig, Jr Dispositif reflecteur parabolique gonflable multifonction et procede de fabrication

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656486A (en) * 1985-07-12 1987-04-07 Turner Allan L Satellite TV dish antenna support
JPH02261202A (ja) * 1989-03-31 1990-10-24 Toshiba Corp 可搬式アンテナ装置
FR2649539B1 (fr) * 1989-07-06 1991-11-08 Yves Devillers Antenne demontable et aerotransportable pour telecommunications bidirectionnelles avec un satellite
US5334990A (en) * 1990-03-26 1994-08-02 K-Star International Corp. Ku-band satellite dish antenna
GB2432054B (en) * 2005-11-01 2009-10-07 John Cyril Watkin Portable offset satellite antenna system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260208A (ja) * 1984-06-06 1985-12-23 Matsushita Electric Ind Co Ltd 車載アンテナ装置
EP0293877A2 (fr) * 1987-06-03 1988-12-07 Kabushiki Kaisha Toshiba Antenne parabolique portative
GB2208189A (en) * 1987-07-07 1989-03-08 Toshiba Kk Portable antenna apparatus for satellite communication
EP0683540A1 (fr) * 1994-05-20 1995-11-22 de los Angeles Gmür-Mosquera, Maria Antenne pour communication d'un satellite
US20020005816A1 (en) * 2000-07-17 2002-01-17 Carroll Ginther Satellite dish antenna alignment device
CA2494009A1 (fr) * 2001-05-30 2002-12-05 John R. Essig, Jr Dispositif reflecteur parabolique gonflable multifonction et procede de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199055A (zh) * 2014-08-29 2014-12-10 广州中海达卫星导航技术股份有限公司 Gnss接收机的电子气泡校验方法及装置

Also Published As

Publication number Publication date
GB2446058A (en) 2008-07-30
GB0701335D0 (en) 2007-03-07
GB0801266D0 (en) 2008-02-27

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