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Author Topic: TV cable and internet in Cat5 LAN cable  (Read 1207 times)
mets0604
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« on: August 11, 2009, 08:29:39 PM »

Guys,

Ask ko lang sana..if pede ko ba gamitin ang *pin4 and *pin5 (*no connection in cat5 utp cable)
sa cable tv? ano magiging effect? ok lng ba un?

connected kami ng internet via router, eh ngpakabit din cla cable tv bka kc pede un.
instead na bibili me ulit ng separate coax wire


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« on: August 11, 2009, 08:29:39 PM »

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rdpzycho
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« Reply #1 on: August 11, 2009, 11:32:36 PM »

balanced line (twisted pair) ang CAT5, 'di match sa impedance ng cable. may possibility rin na maka-interfere sa network 'yung cable signals dahil malaki ang chances magkaroon ng Common Mode emissions sa pagkabit ng unbalanced line sa balanced line.
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mets0604
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« Reply #2 on: August 12, 2009, 05:19:45 AM »

to: rdpzycho

Noted and thanks.
Also, what is the impedance of cable tv to internet?

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rdpzycho
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« Reply #3 on: August 12, 2009, 10:56:55 AM »

Cable TV - 50 ohms to 75 ohms
CAT5 (UTP) - 100 ohms

maliit lang ang SWR kung ikokonekta ng direkta ang 75 ohms sa 100 ohms pero ang main concern talaga is conversion from unbalanced to balanced. at typically ang CAT5 rated lang up to 100 MHz kaya malamang mahina ang signal sa upper channels.
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dan.enriquez
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« Reply #4 on: December 14, 2009, 11:13:20 PM »

hindi pwede ang current nung CATv mo malaking epekto sa internet mo.working frequency and impedance masasama sama sila sa isang raceway lang?no good.
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« Reply #5 on: December 15, 2010, 08:47:12 PM »

internet+telephone pwede pa pero masyado maraming interference pag CATV.
P.S. ginawa ko na siya dati
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« Reply #6 on: January 08, 2011, 10:32:37 PM »

Pwede mo magamit kung IPTV and paguusapan telephone,internet and cable TV in one Cat5..yung mga bagong LED TV ngayon merong RJ45 slot sa likod..kaso wala pa yata sa pilipinas ng IPTV service hehe
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