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Post subject: tv signal po UTP
 Posted: 02.01.2012 - 20:00 #95680
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Guru
Joined: Aug 14, 2008
Posts: 1149
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skusal niekdo tlacit po UTP kabli tv signal analog
po 4 kabloch mi ide net a po dalsich dvoch paroch by som pustil tv je to mozne? na vzdialenost cca 15m |
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 20:42 #95683
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Basic
Joined: Máj 15, 2003
Posts: 161
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| zalezi od kabla - cat5e pojdu veci do mozno 200Mhz, na cat7 kludne aj 100m do 400Mhz |
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 20:52 #95684
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Guru
Joined: Aug 14, 2008
Posts: 1149
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| oki dik mam jednu bytovku a clapik tam chce stiahnut kablovku po mojom utp |
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 20:57 #95685
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Guru
Joined: Aug 14, 2008
Posts: 1149
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 21:14 #95686
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Guru
Joined: Jan 24, 2004
Posts: 1685
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edusko....nemam slov
nemyslis vazne taketo bastlenie...
a ked uz teda...
ty si elektrikar nie?
impedancia ti nic nehovori?..prisposobenie vedenia... Cat5e ma tusim 100ohmov, kolko ma koax? 75ohm? |
Last edited by kubiik on 02.01.2012 - 22:18; edited 1 time in total
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 21:50 #95687
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Majster
Joined: Feb 14, 2011
Posts: 2544
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 Ja som uz vselico videl po UTP, aj 240V...takze nejaká TV neprekvapí  |
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 22:44 #95688
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Majster
Joined: Okt 21, 2003
Posts: 4247
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| existuju na to pasivne prevodniky medzi koaxialom a krutenou dvojlinkou (balun = BALanced/UNbalanced), kazdopadne ludia ktori sa tym zaoberali a merali to a chceli to pouzivat o vacsom, sa po prvych meraniach chytiil za hlavu a zahodiil to do kosa. avsak ak to vyskusas a bude to fungovat a nebudes od toho cakat zazraky, teoreticky by to mohlo splnit tvoju poziadavku. hladaj balun na 75 ohm... |
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Post subject: RE: tv signal po UTP
Posted: 02.01.2012 - 22:54 #95689
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Guru
Joined: Aug 14, 2008
Posts: 1149
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dik pixal zazrak od toho necakam
chcem pomoct zakaznikovy aby nevrtal kable nic viac sak vieme ake su rozvody na bytovkach |
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Post subject: RE: tv signal po UTP
Posted: 03.01.2012 - 08:09 #95695
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Basic
Joined: Apr 22, 2003
Posts: 358
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Chces tam pustat priamo signal z anteny/kabelovky alebo videosignal (napr. z nejakeho STB)?
Na prvu moznost som nejake realne fungujuce zariadenie nenasiel, na druhu ano (to je to, co ti tu ponuka pixall), ale velmi zalezi od kvality kabelaze a zemna slucka tiez vie urobit svoje.
*Aha, uz som si precital, ze to chces na kablovku. Tam potrebujes sirku pasma do nejakych 860 MHz. Chlapik nech si radsej natiahne novy koax. |
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Post subject: RE: tv signal po UTP
Posted: 03.01.2012 - 09:30 #95696
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Guru
Joined: Júl 14, 2005
Posts: 1591
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ja som to tiez musel riesit, v novostavbe maju vramci bytu zasekane iba FTPcka a do bytu jednu 12mm trubelku...
cez nu som dostal koax az do bytoveho rozvadzaca kde su vyvedene FTPka a na jedno z nich som to napichol cez balun... a na pocudovanie to v pohode chodi....
nechcem ofsem vediet kolko toho ziari do eteru... ale tak dufam ze to tienenie aspon trosku funguje... |
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Post subject: RE: tv signal po UTP
Posted: 03.01.2012 - 10:21 #95697
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Ucen
Joined: Aug 11, 2008
Posts: 537
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| normalne mu to bude fungovat,ja som elektrotechnik a nevidim v tom ziadny problem,su to len medene draty nerobte z toho vedu.15 metrov? ako nic,kto neveri nech si to skusi v obyvacke kludne aj so 100 m utpčkom. |
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Post subject: RE: tv signal po UTP
Posted: 07.01.2012 - 19:34 #95774
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Ucen
Joined: Apr 18, 2008
Posts: 561
Location: Toropark
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server3 wrote: ›normalne mu to bude fungovat,ja som elektrotechnik a nevidim v tom ziadny problem,su to len medene draty nerobte z toho vedu.15 metrov? ako nic,kto neveri nech si to skusi v obyvacke kludne aj so 100 m utpčkom.
a nejaky symetrizacny clen pre inu impedanciu???? |
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Post subject: RE: tv signal po UTP
Posted: 07.01.2012 - 23:41 #95788
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Ucen
Joined: Aug 11, 2008
Posts: 537
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majak wrote: › server3 wrote: ›normalne mu to bude fungovat,ja som elektrotechnik a nevidim v tom ziadny problem,su to len medene draty nerobte z toho vedu.15 metrov? ako nic,kto neveri nech si to skusi v obyvacke kludne aj so 100 m utpčkom.
a nejaky symetrizacny clen pre inu impedanciu????
take picoviny netreba riesit. |
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Post subject: RE: tv signal po UTP
Posted: 08.01.2012 - 18:09 #95816
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Majster
Joined: Okt 21, 2003
Posts: 4247
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server3 wrote: › majak wrote: ›a nejaky symetrizacny clen pre inu impedanciu????
take picoviny netreba riesit.
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