Finding Satellite in Space - Philippines

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Catching Satellite Signal

PART 2 - Finding Satellite in Spacewith respect to the place where you install the DishPlate on the surface of the Earth

Author :

FDM(Electronic Hobbyist and Enthusiasts)

(Shared for 1diycentre websiteTaglish Version R1.2)

- This was taken in the middle of the jungle on highmountanous area. Thanks to DTH, they enjoy theirtime watching high quality DVB TV/Radio programsand will get the Education and information from theoutside world.

“Don’t wanna miss a thing”

website:www.1diycentre.com

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A GENERALA.1 SCOPEThis publication update and simplified for New User, DIYers, Hobbyists, Enthusiasts and Satellite freak, shared and contributed for 1diycenter website. Itdiscusses how to find the Satellite in Space with respect to your location on the face of the Earth, using Antenna Alignment software running on Personal Computerboth :

- Off line (no internet needed)- On Line which requires to be connected into the Internet

which provide coordinates that can be read directly as pointed by the Compass.

This document is a primary requirement to Catch Satellite Signal described int he Document 1DC PX07.3.

Part 1 : Getting Satellite Information : described by Documents 1DC PX07.1Part 2 : Finding Satellite in Space : described by Documents 1DC PX07.2

with respect to the place where you install the Dish Plate on the surface of the Earth

Part 3 : Setting Antenna LNB Parameters : described by Documents 1DC PX07.3 Finding Satellite Signal Scanning TV/Radio Channels

A.2 APPLICABLE MODELS / STBIt is applicable for finding Satellite in space in the Ku and C band. It is intensively discussed in finding the a Satellite and given an example of CatchingSatellite Signal using NSS 6 Ku band as an illustrative example. This documents may or may not be applied for Militaryapplications, thus, limited to DIYers,hobbyists, enthusiasts and Satellite freak.

A.3 REFERENCE DOCUMENTSA.3.1 Experienced and Research Knowledge

A.4 RELEASEDA.4.1 Released and shared for 1diycentre (a knowledge base website : http://www.1diycentre.com) .

Finding Satellite in Space Doc. No : 1DC PX07.2 1diy CENTRE : Technical Team113

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B. Your Location on EarthIn Catching Satellite Signals, it is a primary requirement that you know thelocation of the Satellite so that you can orient or direct your Dish Plate in aLine Of Sight (LOS) with respect to your location on the face of the Earth.

Isa sa pinaka-popular na Satellite sa Asia ay ang AGILA 2 na matatagpuansa kalawakan - sa location na 146O E (146 degrees East) o sa iba’ng paraanng pagbasa ay 214O W (214 Degrees West).

Ang isa pang Satellite na matatagpuan malapit sa AGILA 2 ay ang TELSTAR18 na matatagpuan sa 138O E. Ang isa pang Satellite ay NSS 6 (95OE).

Kung gusto natin huliin ang signal na nanggagaling sa mga Satellite na ito,saan ba natin itututok ang Antenna Dish Plate (iyong Dish Plate na assembledayon sa 1DC PX04 na documento)? Gagamitin ba ang Satellite locationkatulad ng 146OE at babasahin mula doon sa Compass para mahuli angAGILA 2? Kung nabasa na ang 146OE sa compass, doon mo ba itutok angSatellite Antenna Dish Plate?

Hindi. Iba’t ibang lugar ay mag-iiba ang direction kung saan mo itutok angDish Plate, kahit na pareho ang Satellite. Para malaman kung anong coor-dinate ( minsan tinatawag din na - bearing, direction o azimuth & elevation),gamitin natin ang mga Satellite Alignment Calculator o Azimuth/ElevationCalculators, a software that calculate Azimuth and Elevation running on PC.

Mayroon pang isa (off line, ibig sabihin na hindi na kailangan pa nanaka-connect sa Internet) Satellite Antenna Aligner (SAA) na Shareware.Ang software na ito ay ma-download sa http://www/al-soft.com/saa/satinfo.shtml.

Ang dalawang software para sa calculation ng Azimuth at saka Eleva-tion ng Dish Plate ay may kanya-kanyang advantage at saka disadvan-tage. Maari natin gamitin dalawa base sa pangangailangan natin.

Let’s explore them - see how it can help you and frequent SatelliteShooters.

C. Dish Plate Azimuth/ElevationAng Dish Plate na iyo’ng i-install ay may orientation na tinatawag na Azimuth(Left-Right panning) at saka Elevation (up-down panning) sa paghuli ngSatellite Signal. Ang mga value na ito ay malalaman natin sa pamamagitanng software AZ/EL Calculator.

SATLEX AZ/EL CalculatorGamit ang Satlex AZ/EL Calculator (sa computer na mayroon connec-tion sa Internet). I-type ang address na ito sa Windows Explorer.

http://www.satlex.de/en/azel_calc.html

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Satellite Alinment Calculators SHOPPING FOR IN-FORMATION

With the biggest library accessible on the internet, there is a popularone-stop shop for Satellite Alignment Calculators which calculateAzimuth and Elevations of Dish Plate based on your location on Earth(kung saan mo i-install ang iyong Dish Plate)

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Ma-access ang On-line Calculator na ito sa internet address na :

http://www.satlex.de/en/azel_calc.html

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Ang Satellite na iyonghuhuliin ang Signal (Ex.TELSTAR 18 138OE)

Anong Bansa (country)Ex. China

Anong City (sa China)Ex. Hong Kong o HK

Ang calculator Window ay lalabas PC monitor. Bago mo magamit ito,kailangan na ibigay mo ang iyong Location kung saan mo balak magtayong Satellite Antenna - (Site Location), kung anong Satellite ang gustomong huliin ang Signal. Example, nasa HK (Hong Kong) ka at gustomo’ng mag-install ng Ku band Antenna (Dish Plate) para huliin angTELSTAR 18 na Satellite. Sundin ang mga illustrations :

Mamili ng COUNTRY(China (cn))

Mamili ng CITYHongKong

Mamili ng SATELLITE(TELSTAR 18)

Correct Entries of : Satellite, Country and City

China HK

TELSTAR 18(para malaman kung anong TV/Radio program ang transmit ngSatellite na ito, please refer toother document :1DC PX07.1 - Get Infomationor visit www.lyngsat.com


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Ang Hong Kong, China aymatatagpuan saLatitude = 22.28ONLongtitude = 114.15OE

Pindutin ang CALCULATE atmakikita ang calculated valuesng :

AZIMUTH = 130. 62O

ELEVATION = 52.56O

Ang AZIMUTH na 130. 62O

ay ang direction ng Satel-lite Antenna Dish Plate mosa Hong Kong. Nababasapo ang direction na ito saCompass.

Makikita din dito saQuadrant na angTELSTAR 18 ay nasaquadrant ng East-South.

Itong Location naito ay Hong Kong,China. Hindi po itoang direction kungsaan mo itutok angDish Plate

Ang angular displacement na ito ay 130.62O mula sa North o maba-basa na 130.62OE.

Ito ang 130O na directly namababasa sa compass(approximate na readingng 130.62O mula sa calcu-lations, kasi hindi momababasa ang 130.62O sacompass)

South

East


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Ito ang Elevation illustrationng AZ/EL Calculator. Ang ex-pected na Elevation ay 52O

(approximate ng 52.56O)

130O

150O

SOUTH

WEST

EAST

Dish PlateLNB boom Holder

COMPASS

Ang 130 degrees ay ang azi-muth o direction ng Dish Platemula sa Hong Kong, China.

TELSTAR 18(138OE)

NORTH

(90O)

(0O) (180O)

(270O)

(360O)

Satellite Antenna Alignment (SAA) CalculatorGamitin ang isa pang Satellite Antenna Alignment Calculator.

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Kung na-install na sa PC, idouble click mula sa desktop

Note:Ante Software na SAA ay SHAREWARE athindi muna kailangan pa ang connectivity saInternet para gumana.

Pero bago mo ito magamit, kailangan na i-install mo muna sa PC na mayroonWindows operating systems. Hindi ko nasubukan kung gumagana ito saLinux operating Systems o MAC PC.


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Control Panel ng SatelliteAntenna Alignment(SAA) Software.

Mayroon itong messegena i-register ito’ng soft-ware kung ito aygagamitin sa Regularcommerical Use.

Pindutin ang Close

Ang Software na ito ay kailangan nai-lagay ang Numerical value ng Lati-tude at Longtitude kung - saan kamagtatayo ng Dish Plate (Site Loca-tion)

Sa ating Example, Ang HongKong,China ay mayroon :

Latitude = 22.28ONLongtitude = 114.15OE

in terms of degree, minute at seconds

Latitude = 22O 16’ 48’’Longtitude = 114O 9’ 0’’

Pagka-lagay mo ng coordinate(Longtitude saka Latitude) ng lugar,kailangan na i-save mo itom, gayahalimbawa ng HongKong, na-i-saveito na ang pangalan ay China-HK.

(Ang location data base na makikitadito ay aking ginawa, manually po nanag-enter ako, hindi po automatic).

Kung mayroon ka ng data base ngmga lugar, i-double click mo lang itokung gagamitin mo

I-double click ang TELSTAR 138, makikitadoon sa Satellite Location na ang napili naSatellite ay TELSTAR 18 na matatagpuan sa138O.

Ang calculated Azimuth at sakaElevation

AZIMUTH = 130. 616O

ELEVATION = 52.535O

Note:Approximately the same numerical result as the AZ/EL Calculator (Satlex).


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Dito sa Table, makikitakaagad ang direction ngiba’t iba’ng Satellite hindilang ang TELSTAR 18,pati na ang AGILA 2.

Ipinapakita na ang Azi-muth ng AGILA 2 saHong Kong China ay121.395OE.

ElevationAzimuth

Halimbawa,

Kung gusto mong malaman ang Azimuthat elevation ng Dish Plate para Huliin angTESLTAR 18 sa Manila, Philippines, idouble click lang ang Phil - Manila paramagbago ang Site Location (kung saanka mag-tatayo ng Antenna Dish Plate).

Site Location:Manila, Philippines

Latitude : 14.6ON (14O 35’ 59’’)Longtitude : 120.98OE (120O 58’ 48’’)

TELSTAR 18

AGILA 2

AZIMUTH ELEVATIONSatelliteLocation

Antenna Dish Plate - Manila


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Result of Satellite Antenna ALignerAng Satlex, AZ/EL Calculator at ang SAA Calculator software ay parehasna nagbibigay ng Azimuth at saka elevation.

Ang Satlex calculator ay may database ng Country at saka City (SiteLocation), at presetted na sa mga popular na lugar. Kahit na hindi moalam ang longtitude at saka latitude ng lugar na pagkakabitan ng DishPlate ay ma-compute mo ang Azimuth at saka Elevation. Mayroon dinUser defined, kung sakali na ang iyong lugar ay wala sa database. Iyonnga lang, kailangan na naka-online ka sa Internet para magamit moang Software.

Ang SAA calculator Shareware version ay kailangan na mag-input kang Latitude at saka Longtitude ng lugar kung saan ikakabit ang DishPlate (Site Location), kung hindi mo alam ang mga parameter value,hindi mo magagamit. Ang kagandahan naman nito ay, hindi munakailangan pang gumamit ng Intenrnet para lang maka-compute ka ngAzimuth at saka Elevation. Kaya, ang primary na requirement nito ay,dapat makagawa ka ng Site Location database.

Note:Base sa Satlex, hanggang Angeles City lang ang mayroon City sa NorthPhilippines, bakit kaya wala Baguio, Vigan o Laoag City? I assumethat norther part of Philippine is the same geographical location as An-geles City [Pampanga po iyan, hindi Los Angeles City California,hehehe], which is the approximately the same azimuth and elevationas in Manila.

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Sample Azimuth and Elevation ComputationMakikita sa Table 1 ang sample computation ng Azimuth at Elevationna gagamitin upang ma-i-align ang Dish Plate para huliin ang signalmula sa AGILA 2 Satellite, base sa ibat ibang lugar sa Asia.

Ang mga nakuha na values po ay naka-rounded off sa nearest wholenumber para simple.

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Location Azimuth ElevationNo

1

Philippines (Manila) 118 O 56 O

Cebu 113 O 61 O

Zamboanga 105 O 60 O

China (Hong Kong) 121 O 34 O

Beijing 138 O 34 O

Shenyang 148 O 36 O

2

Thailand (Chang Mai) 106 O 32 O3

Bangladesh (Dhaka) 105 O 23 O4

Mongolia 140 O 27 O5

Ito ang nababasa mo doon saCompass. Halimbawa, anglugar mo ay nasa Manila,tingnan doon sa compasskung nasaan ang 118 O

TABLE 1 : Azimuth / Elevation of AGILA 2 Vs Location

118O Ito ang expected naAzimuth para mahuliang signal mula saAGILA 2


Note:North Philippines like Baguio, Vigan,Laoag, Cagayan Valley, Isabelashould follow Manila Azimuth andElevation. In most case, the Azi-muth is playing around 118O to 120O.If you know the latitude and longi-tude of your place, you can use theUSER DEFINED Locations.

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D. Azimuth/Elevation ImplementationOk, alam na natin kung paano makuha ang Azimuth at saka Elevationsa pamamagitan ng PC software, pero paano i-implement ito sa SatelliteAntenna Dish plate?

Compass for ElevationAng Compass ay ginagamit para ituro ang direction ng Azimuth. Itoang experimented DIY procedure namin sa Ku Band - (Hindi absoluteat saka perfect na mahuhuli mo kaagad ang Signal na di na kailanganpa ang trial and error)

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Base sa Azimuth value, i-aligned ang magnifying arm paranakatutok doon sa direction ng azimuth, hintayin magingstable ang direction. I-aligned ang LNB boom para mag-kasing direction sila ng magnifying arm ng Compass.Compass

LNB boom

Note:THIS MAY NOT APPLICABLE TO YOUR ANTENNA SYSTEMS OF DIFFER-ENT CONSTRUCTION, HOWEVER, THE IDEA SHOULD BE THE SAME

CAUTION :If your compass changes directionwhile putting on the ground, likegoing clockwise or counterclock-wise, please do not put into theground. This compass is sensitivewith respect to the ground (concretecement, hard soil, etc.

Kapag ang Compass ay iikotpakaliwa o pakanan kung ilalapagito sa ground, huwag ilagay saground).

Ito’ng compass na ito ay mag-iiba angdirection kung ilalapag sa concrete ce-ment (iikot ng mga 10~15 degrees clock-wise), kaya ang remedy ay hawakan angcompass parallel sa ground - hintayinmaging stable, ang cover nito at ang“sighting hairline” dapat naka-aligned saLNB boom.

Hairline Sight

LNB boomLNB

Ang Dish Plate atsaka ang cover ngcompass ay nakaparallel

AzimuthDirection

AzimuthDirection


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Protractor for ElevationSa gamit namin Antenna para sa frequenct DIY-shooting ng ibat ibangSatellite sa Asia (Telstar 18, NSS6, NSS11, AGILA 2, etc), ang Eleva-tion ay hindi rin absolute value or absolute direction (gaya ng Azimuth).Ang Elevation angle ay INITIAL SETTING lang namin. Ang Final Valueng Elevation ay kung saan ang Maximum level na QUALITY : com-promise between Azimuth, elevation and LNB Skewing.

Let’s see how it work with respect to the Antenna Systems we are us-ing.

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Elevation Anglereferring from theLNB Boom

E l e v a t i o nAngle adjust-ment

To set the INITIAL ELEVATION of 56 degrees (AGILA 2 elevation in Ma-nila - see Table 1), gamit ang “Protractor”, kumuha ng straight edge (ruler)at i-project ito sa approximate na 56O. I-adjust ang elevation ng Dish Platehanggang ang LNB boom ay maging “parallel” doon sa ruler na naka-inclined ng 56O mula sa horizontal.

I-adjust ito para angLNB boom ay mag-parallel doon sa rulerna naka inclided ng56O.

The Antenna LNB boom andthe ruler are very close inangular displacement withrespect to the horizontal

horizontal

Approximately56O

must be at junction

Approximately56O from the horizontal


Note:THIS MAY NOT APPLICABLE TO YOUR ANTENNASYSTEMS OF DIFFERENT CONSTRUCTION, HOW-EVER, THE IDEA SHOULD BE THE SAME

horizontal

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E. Sample DIY AlignmentHere is an example of catching Satellite Signal using the Technical KnowHow described in this publication. Our point of interest is to Catch Signalfrom NSS 6, a satellite located in space at 95OE.

NSS6 Azimuth and ElevationData :

Site Location : ManilaLatitude : 14.6 ON (14O 35, 59’’)Longtitude : 120.98OE (120O 58’ 48’’)

Antenna Dish Plate Direction (azimuth) : 242.65O, aprox. 242O

Elevation : 55.56O, approx. 56O

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Location of NSS 6 : South-WestQuadrant, that is 242.65O East

Elevation of NSS 6 : 55.56O fromthe vertical (based on this illus-tration)

Initial setup:

1) Elevation : 56O referring from hori zontal to the LNB boom

2) Azimuth : start from 242O

approximatley 242O220O


Note: If your compass is sensitive toconcrete cement, do not place on thesurface or ground

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Trial And Error Finding the SignalEven with the Given Azimuth and Elevation, I did not get the signal atonce. I need to do a Trial and Error, as follows :

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move the dish tothe left

move the dish tothe right

The movement is little bylittle, if I cannot get anyQuality at one movement(by observing the Qualitybar), I move the plate up/down, then continuesearching in the expectedlocation.

Once I get a smallQuality, I stop there,take note of the posi-tion, then try to maxi-mized the Quality. IfQuality goes worst, Ire-start from the posi-tion where i can getsmall Quality and tryagain. In somecases, I need to re-orient the LNB (Skew)into the direction ofMaximum Qualityreading.

Fixed Satellite An-tenna : directed toapprox. 119O forAGILA 2 viewingFTA channels

Demonstrationon how to catchNSS 6 Satellitesignal (95OE),the dish plate isdirected to 242O.

NSS 6 FTA TV Program :Name : CGNTV

NSS 6 FTA TV Program :Name : PENTAGON


Solar Power forTV

The Systems used in catchingthe NSS6. I used 2nd Genera-tion IRD Bolt630s which is avail-able at that time. (Take note thatthe LNB is about 3:30 PM)

TV & IRDmyFavorite drinks

compass 1 & 2

Antenna Systems

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E. SummaryThis document “Finding Satellite in Space - with respect to the place whereyou install the Dish Plate on the surface of the Earth“ shows one possibleprocedure for a hobbyist to effectively orient the Antenna Systems to catchSatellite signal transmission.

There maybe other ways, simpler and better. I wish you can share it.

This document is only limited to the discussion of Ku band Antenna Systemsand the technique to orient based on Elevation of common Offset Type An-tenna (where the Antenna boom is orient from horizontal plane and not fromthe vertical plane). I wish others can share their experienced with C-bandAntenna.

The discussion also center in finding the correct Azimuth and Elevation ofthe 2 software presented AZ/EL Calculator by Satlex and SAA Calculator.There are other features of the software which are not discussed. Pleasefind sometimes to discover them. Thanks to Satlex and SAA softwares.

If you have query, clarifications, comment or you want to add or point out anerror, please contact me at :

[email protected]

Thank you for sharing......... and you are more than welcome to SHARE more.


Finding Satellite in Space - Philippines

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