Dec 4, 2003 #1 E eladg Full Member level 3 Joined Jan 13, 2002 Messages 185 Helped 7 Reputation 12 Reaction score 3 Trophy points 1,298 Activity points 1,238 why 50 ohm ? why 50 ohm is use and at tv circu 75 ohm
Dec 4, 2003 #2 H House_Cat Advanced Member level 4 Joined Feb 21, 2002 Messages 1,369 Helped 406 Reputation 812 Reaction score 98 Trophy points 1,328 Location USA Activity points 16,416 Re: why 50 ohm ? This is a question asked frequently. There is quite a bit of information available on the internet. Here are a few things to read in answer to your question: h**p://www.reed-electronics.com/ednmag/index.asp?layout=article&articleid=CA60931 h**p://www.epanorama.net/documents/wiring/cable_impedance.html h**p://www.trompeter.com/assets/product/PDF/wiring.pdf (*=t above)
Re: why 50 ohm ? This is a question asked frequently. There is quite a bit of information available on the internet. Here are a few things to read in answer to your question: h**p://www.reed-electronics.com/ednmag/index.asp?layout=article&articleid=CA60931 h**p://www.epanorama.net/documents/wiring/cable_impedance.html h**p://www.trompeter.com/assets/product/PDF/wiring.pdf (*=t above)
Dec 5, 2003 #3 C cqmyg5 Advanced Member level 4 Joined Oct 21, 2003 Messages 118 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,298 Activity points 963 Re: why 50 ohm ? 50ohm is a compromise between 30ohm and 75ohm.
Dec 5, 2003 #4 Y yuyu Advanced Member level 4 Joined Mar 27, 2002 Messages 108 Helped 13 Reputation 26 Reaction score 12 Trophy points 1,298 Activity points 1,018 Re: why 50 ohm ? 50 ohm is the best compromise between attenuation and power handling. In fact at 30 ohm you have the max power handling instead at 77 ohm you have the min attenuation (that is important for TV cable). Regards.
Re: why 50 ohm ? 50 ohm is the best compromise between attenuation and power handling. In fact at 30 ohm you have the max power handling instead at 77 ohm you have the min attenuation (that is important for TV cable). Regards.
Dec 5, 2003 #5 H hwswboy Member level 4 Joined Jul 2, 2001 Messages 75 Helped 4 Reputation 8 Reaction score 4 Trophy points 1,288 Activity points 605 Re: why 50 ohm ? Read This.... (page 9)