Pathloss_thinh ver1.pdf

7/21/2019 Pathloss_thinh ver1.pdf

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Ti liu sdng ni b Cng ty Cphn Truyn thng Vit Hi

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Hng dn sdng phn mm Pathloss 4.0

1. Import SITE v LINK:

B1: Vo menu MODULE chn NETWORK (hoc n CTRL+ N), mmn hnh dngnetwork: sau chn Site Data v chn Site List import site hoc Link vo phn mm.

B2: Tmn hnh Site list ta chn Import v chn Site text File cho trng hp nhp Site;cn khi chn Link text File l cho trng hp nhp Link.

B3: nhp site: ty theo trong file CSV mnh t site name,Call Sign(tn ging vi site

name) Lat, long,. ct no(ct smy) th mnh in vo y, chn UTM zone l 48N,v hta l North v East, nh dng l degree. Sau chn Import ri trti file CSV


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2. Cc loi MENU:

2.1. Menu FILE:

Trong menu ny ta chcn quan tm n Merge: v trong mt dn ln ta schia ra lmnhiu dn nh(mi tnh l mt dn) ri sau ta dung Merge import nhng dn

nhth ta sc mt dn ln.


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2.2. Menu MODULE:tt ccc mc menu ny ta ssdng thng xuyn, sctrnh by chi tit mc nhpha di:

2.2.1. Summary(hoc n CTRL+U):hin thchi tit vLink c chn gm: tn site, lat,

long, khong cch, map, tn s, Tx, Rx,.vi iu kin ta nhp y cc trng chosite cng nh thit b: anten, mi trng, ODU, IDU, CH, Frequency.

2.2.2. Menu TERRAIN DATA( hoc n CTRL+T)

Trc tin cn nhp MAP cho phn ny nh sau( nu khng c MAP terrain th skhnghin thc ni lm ca mt t: ni, ao h,).

Vo Configure chn Terrain Database


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Hin thnh sau: chn Primary l Odyssey-UTM

Ri chn Setup Primary:

Lun nhl VN vng 48N, sau chn Set Directory v chv th mc MAP


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Ri chn OK Close OK xc nh cho phn Terrain Data quay vmn hnhchnh.

Sau chn Operations Generate Profile

Ri chn Generate


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Shin thnh sau:

Bsung nhng vt chn l ta nh hoc cy xanh trn dc tuyn MW ny bng cch,nhy p vo ct Structure ri chn:

- chn Single Structure: m tmt nh hoc mt cy( cao c m tkhi anh em ilm LOS vbo co)

- chn Range of Structure: m tnh hoc cy dc theo tuyn MW( thng chn defaultl cao 15m).


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Vd: ta c hnh sau:

Phn ny chvo cho tng tuyn rt mt thi gian, cc tuyn khc cng lm nhvy.

to cao mc nh th tham kho thm phn 2.2.3. Menu Antenna Height( hoc nCTRL+A) lm cao mc nh cho ton bcc tuyn khi v.

2.2.3. Menu Antenna Height( hoc n CTRL+A):dng tnh ton cao ca ct antenTRx:

Sdng cho mt link no :

Tlink trn mn hnh ta nhn chut tri ri chn terrain data


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Mn hnh hin nh sau:

Chn phn Operationschn Generate Profile c hnh di:


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Sau chn Moduleantenna Height ta c hnh di:


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Sau dng nt tnh ton cao antenna ti u nht so vi mc terraindata(trong trng hp khng c vt cn: nh, cy,.).

c cao mc nh so vi terrain trong ton btuyn thit k(link) ta lm nh sau:

Tmn hnh chnh antenna Height trn ta vo OperationsSet Clearance Criteria

Ta c hnh sau:

Sau ta vo sliu cao cho vt cn trn tuyn( ly 15m) nh sau

Sau chn OK ta c hnh sau:


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Tln sau cc tuyn smc nh cao so vi mt t l 15m

2.2.4. Menu Worksheets( hoc n CTRL+W):dng vo cc thng scho tuyn MW:mi trng, anten, ODU, IDU, tn s, CH,.

Vd vo s liu cho mi trng MW, nu c file *.rai ca khu vc VN th chn Load RainFile, nu khng c th l 95%.


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V dchn loi antenna: thng th cc loi thit bv tn su do nh mng cung cpcho chng ta.

Vo Code Index chn anten cho site 1 hoc site 2 hoc c2 site cng loi.


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Ri add thit bvo ln sau dng ta khng phi tm loi thit b na, m chcn voLookup l c thit b ri.

Tng tvi phn TRx v CH,. Th ta c tuyn MW y cc thng s trong phnSummary(hoc n CTRL+U)


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Ch : y l v d, cn thc tth mc thu phi


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2.2.6. Menu Network( hoc n CTRL+N):hin thton bnhng site v Link, y tac thcho hin thnhng site hoc Link c nh ngha theo Layer dqun l v theodoi( trnh by phn menu Layer)

Mn hnh chnh Network:


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V dto Link: tnhng site c add vo phn mm, ta nhy p chut vo mt siteno shin th:

Chn Area Coverage:

- Distance: chn khong cch qut bao nhiu km bt u tsite.

- Distance Increment: khi qut xong th li tng ln bao nhiu m th li qut tip vng

na,( y l 200m)

- Start azimuth v end azimuth: t0 n 357.5 .

-Azimuth increment: tng gc qut sau mi ln qut ln 2.5 .

Sau bm nt NEXT:


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- Base antenna height(m): vo cao ct anten( vd 25m)

- Mobile antenna height(m): vo cao ca mobile( vd 2m)

- Polarization: Phn cc thng ng( Vertical)

- chn Line of sight only

- Structure Height: cao ng LOS( vd 25m).

Sau n NEXT qut Terrain:

Vng mu l i ni cao, cn phn mu GHI l ng bng, nhng vn phi checkTerrai.


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2.2.7. Menu Map Grid( hoc n CTRL+G): tng tnh menu Network l hin thsite vLink nhng c thm chc nng to Link mi hoc thit kmt mng hon ton mi hoccheck nhng link thit kxem c bblock bi a hnh hay khng.

- Check xem link c bblock:

Tmn hnh chnh:

Ta vo phn Site dataBackdrop

Mn hnh hin ra v ta chn phn Backdrop nh sau:


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- Backdrop ta chn:

+ Datum l WGS 1984 ( mc nh n sl WGS 84)

+ Grid coordinate system chn l UTM

+ phn UTM Zone ta chn 48N ( Vit nam trong trong vng 48N theo quy chun quc t)

Mn hnh Elevations ta chn nh sau:

+ mc Set directory ta chn ng dn ti th mc bn .

+ mc Index ta chn file index trong th mc cha bn

+ Datum l WGS 1984

+ Grid coordinate system chn l UTM

+ Phn UTM Zone ta chn 48N


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Sau nhtay shin th:

Chn OperationsParameter t thng sbng tn v cao ct:


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Nu tuyn MW m OK th ta chn Add New Link

3. Menu Configure:

Chcn quan tm:

- Antenna Configuration: ta chdng 2 loi: TR-TR v TRDR-TRDR:


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-Antenna Height: vo cao anten MW.

- Geographic defaults: chn hta WGS 1984.

- Terrain Database: chn bn scho phn thit k, nu khng c bn sskhnghin thc terrain.

Ta chcn cu hnh phn PrimaryOdyssey-UTM

Sau chn Setup Primarysau chn Use specif ied UTM zonesau vo 48N( Vitnam nm trong vng ny)


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Sau chn Set Directoryv tm n th mc cha bn s

Ri chn OKCLOSEOK

Ch : xem bn s c import vo cha ta vo Menu Configure TerrainDatabaseSetup PrimaryIndex ta c hnh sau:


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4. Menu Defaults: t cc thuc tnh, mu, kiu ca Site v Link

5. Menu Site Data:

Chquan tm:

- site list: nhp site, link lm phn u:

- Create background: to hnh nn theo MAP c chn

- Add site: them mt site mi.

6. Menu Layers:

Thng th ta add theo tng layers.

Vd: u tin ta add Layer site l Phase 1( chtch Layers 1, cn cc Layers khc bdutch i) v sau ta mun add Layers 2 l MOP th b ht cc du tch cc Layers1,3,4,5,6 ri add cc site vo, tng ti vi Link Layers.


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Khi mun add thm link mi vo Layers no th ta kick chut phi vo link ri chnLayers:

Ri ta chn vo mt Layers no th link sLayer :

Sau chn OK

7. Menu Sections: chquan tm n Sub Network Operations l nh dng nhng link

khc theo Template(link y thng s)


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Trong phn Template File:

- do not use: khng sdng file PL4 lm Template

- use pl4 file on disk: sdng file PL4 lm Template v cc link ca sSub NetworkOperations sc add ging vi link trong Template( thng dng ci ny lm).

- use pl4 file in memory: sdng file pl4 trong bnhlm Template.

- chn Generate profiles.

Sau chn OK( n sto ra mt lot cc file ca tng link di nh dng l *.pl4)

Th a n k yo u

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Pathloss_thinh ver1.pdf