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Antene Antene de toate tipurile, pentru internet wireless, satelitare si nu numai...


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Old 06.11.2014, 18:24   #1
mariann
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Default antena wireless sa capteze semnal de la 100 m

salut ma poate ajuta cineva cu o idee cum sa fac sa prind semnal mai bun cam de la o distanta 70-100 m,totul mia mers ok pana acum 4 zile am un biquad facut aveam semnal 4 linii viteza buna dar acum doar 2 linii de semnal si nu ma pot conecta,antena e anfipta an placa de retea la laptop

---------- Post added at 18:24 ---------- Previous post was at 18:19 ----------

am primit o antena WANT9-2W pe usb cu ea ma conectez dar dureazaaaa foarte mult sa se ancarce o pagina,nu gasesc nici detalii despre ea ca e an spaniola,iam scos antena si iam legat biquadu si tot slab,spunetimi va rog cam ce antena sa fac sa o leg la adaptorul asta want9-2w
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Old 06.11.2014, 22:54   #2
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Default Re: antena wireless sa capteze semnal de la 100 m

Un astfel de adaptator sar putea sa duca antene de 16dBi

Teai gandit ca sar putea ca cel ce emite sa fi schimbat pozitia rutarului ? Poate la pus dupa un obstacol ce nu-ti permite sa-l mai depasesti cu astfel de "scule"
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Old 07.11.2014, 14:56   #3
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Default Re: antena wireless sa capteze semnal de la 100 m

Daca biquad-ul ala a incetat "brusc" sa mai functioneze ca inainte, as recomanda sa verifici daca nu ai undeva contacte oxidate, lipituri desfacute, etc ... Ceva pe partea de contacte electrice.
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Old 08.11.2014, 20:51   #4
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Default Re: antena wireless sa capteze semnal de la 100 m

Daca placa de retea a fost sub tensiune cand ai schimbat antenele, probabil a avut de suferit. Probeaza biquad-ul cu un alt adaptor de retea, si daca merge, inseamna ca placa in placa ta nu mai intra semnal. Poti proba placa si cu o antena de tip panel de 14-16 Dbi (luata cu imprumut). Antena panel are rezultate bune pe distante de sub 1 Km.
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Old 09.11.2014, 11:18   #5
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Default Re: antena wireless sa capteze semnal de la 100 m

ntr-adevar routerul se află dupa un perete, ma conectez dar nu misca deloc, oare ce antena sa fac sa pot prinde semnal bun

---------- Post added at 11:18 ---------- Previous post was at 11:16 ----------

nu am lipituri facute la antena doar le-am legat asa, sa le lipesc oare ca am scule?
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Old 09.11.2014, 12:38   #6
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Default Re: antena wireless sa capteze semnal de la 100 m

Ceea ce ai făcut acolo se cheamă improvizație, normal că trebuie să le lipești. Lipiturile trebuie să fie ct mai perfect pentru a minimaliza pierderea semnalului, ca de altfel și cablul.
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Old 09.11.2014, 12:55   #7
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Default Re: antena wireless sa capteze semnal de la 100 m

ok le lipesc si fac o proba
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Old 09.11.2014, 19:29   #8
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Default Re: antena wireless sa capteze semnal de la 100 m

faza cu lipitul da randament mai bunicel ,treaba e ca mam conectat si fara adaptor doar an placa de retea dar semnalul cand e excelent cand e slab,nu e stabil,cam ce antena sa ancerc sa fac dupa parerea voastra
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Old 11.11.2014, 14:19   #9
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Default Re: antena wireless sa capteze semnal de la 100 m

Quote:
Originally Posted by mariann View Post
faza cu lipitul da randament mai bunicel ,treaba e ca mam conectat si fara adaptor doar an placa de retea dar semnalul cand e excelent cand e slab,nu e stabil,cam ce antena sa ancerc sa fac dupa parerea voastra
Cut pe site nten BELGRANO r trebui s merg si nu e greu de fcut
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Old 12.11.2014, 21:22   #10
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Default Re: antena wireless sa capteze semnal de la 100 m

pai la belgrano mam gandit,duminica o fac
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Old 05.01.2015, 14:50   #11
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Default Re: antena wireless sa capteze semnal de la 100 m

am facut belgrano dar nu da randament deloc,
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Old 05.01.2015, 21:35   #12
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Default Re: antena wireless sa capteze semnal de la 100 m

Daca e bine executata (lipituri facute corect, nu contacte imperfecte; cablu de radiofrecventa cat de cat OK si nu foarte lung), incearca sa tatonezi distanta dintre discuri. Dimensiunile date in schite sunt aproximative deoarece depind de materialul folosit la constructie (mai precis ce velocity factor are tabla din care va fi construita).
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Old 11.01.2015, 00:47   #13
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Default Re: antena wireless sa capteze semnal de la 100 m

cablu e de antena tv de vreo 5, 6 metri iar discurile din tabla zincata,o mai modific putin pana o reusesc,si cumpar si cablu special.trebuie sa mearga,desi ami apar 3 retele care nu sunt din zona mea ca aici le stiu,ar fi cam dintr-o localitate la 2 km.desi totusi vede la ceva distanta numai ca trebuie sa o aranjez perfect
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Old 11.01.2015, 10:59   #14
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Default Re: antena wireless sa capteze semnal de la 100 m

Ai aici PDF-ul cu dimensiunile corecte. Maestrul Mandarache recomanda ca grosimea materialului folosit sa fie de 1mm.Trebuie acordata atentie la calitatea executiei, table perfect plane si paralele, cablu de 50 Ohm, dimensiuni exacte...daca tot muncesti sa o faci, barem sa iasa un lucru bun.

cobre = cupru
laton = alama
bronce = bronz
chapa hierro =tabla de fier
acero inox = otel inox
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File Type: pdf 05-05-2010-Belgrano Mandarache x chalenger.pdf (143.1 KB, 25 views)
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Old 11.01.2015, 14:08   #15
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Default Re: antena wireless sa capteze semnal de la 100 m

Multumesc
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Old 11.01.2015, 16:41   #16
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Default Re: antena wireless sa capteze semnal de la 100 m

ce programe de detectat retele wifi si analiza exista pentru ubuntu,linux
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Old 11.01.2015, 17:07   #17
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Default Re: antena wireless sa capteze semnal de la 100 m

LinSSID, wavemon.
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Old 11.01.2015, 19:00   #18
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Default Re: antena wireless sa capteze semnal de la 100 m

dar cum instalez linssid,l-am descarcat
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Last edited by AnbuBlack; 11.01.2015 at 19:09.
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Old 11.01.2015, 19:11   #19
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Default Re: antena wireless sa capteze semnal de la 100 m

Code:
sudo add-apt-repository ppa:wseverin/ppa

sudo apt-get update

sudo apt-get install linssid
Și cnd l vei rula va trebui introdusă parola de root.
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Old 11.01.2015, 21:18   #20
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Default Re: antena wireless sa capteze semnal de la 100 m

Merci, AnbuBlack l-am instalat, azi am facut un biquad reflectorul cam 10 cm pe 10 iar romburile de 2,7mm e mica, dar m-a scos din toate belelele am 3 linii de semnal ajunge la 57- 60, iar afara ploua tare. Drept sa spun e cam al 10-lea biquad dar nici una nu a ajuns la performanta asta si sta afara agatata ntr-un cui, e rasucita. Maine i fac suport sa o prind n perete si cred ca o sa am semnal foarte bun daca o fixez pe perete ndreptata spre sursa de net. O sa revin cu poze si cu rezultatele, iar dupa asta o sa fac si o antena yagi, va multumesc tuturor.
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Last edited by AnbuBlack; 11.01.2015 at 21:27.
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