| reply to jjlutzke
Re: [Equipment] How can I run 650' of cable from my house to my I was going to say run power over fiber like andrew said but I dont know how well the OP how to hook up fiber over power. |
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 49528867Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3
1 edit | reply to LLigetfa
said by LLigetfa:Thanks for doing the legwork. The DC injector spec'd has a bandpass of 2-1450 MHz. It's worth noting that those devices uses inductive blocking on the DC side and capacitive coupling to pass the RF, as such the label may say it goes to 1450 Mhz, but I am willing to bet it goes higher, the size of the cap limits the low end pass through frequency but as the frequencies go higher it becomes less relevant and mechanical construction becomes more relevant and the design of that device is a pretty simple “T” without a lot of impedance through the RF path as such it’s losses at 1525 should be quite tolerable..
Also with MoCA the additional bandwidth gained in the newer versions is gained by adding channels at lower frequencies which I believe rev 2.2 has down to 500Mhz as such the higher end is not being pushed even higher.
The larger problem I see with MoCA is in the lab it should handle up to a 60dB link loss, but I am quite willing to bet the manufacturers of the devices knowing it is “in home” networking system may be selling devices that cannot handle those loss levels.
As such, I believe the focus should be on keeping the coax losses to a minimum of at least half that 60dB down rating.
Wayne
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"It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence." - Charles A. Beard |
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49528867Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3 | reply to pacmanfan
said by pacmanfan:14AWG solid THHN wire in conduit may be just fine. Personally I wouldn’t pull solid into a conduit but that’s just me, none the less, unless that conduit is metallic, one had better put some twists in that wiring before pulling it into the pipe, otherwise one has built themselves a neat little surge magnet.
Now normally it wouldn’t matter in the electrical world, but here we are considering running a couple of very low amperage electrical devices at the end of what becomes a long wire antenna and those low amperage devices to an induced surge appear as high impedance, which results in a considerably higher surge voltage at the far end from the source of power.
To solve this problem we now have either to get into some serious surge protection and grounding to go along with it or consider coax or UTP, which while still susceptible to induced surges provides enough balance or shielding to reduce the voltage of the surges to the point we can back off on the grounding a bit.
It’s a balance of which all options have to weighed against one and another.
Wayne
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"It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence." - Charles A. Beard |
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| reply to jjlutzke
Wayne,
That's just the kind of input I was needing on my approach. I have done what I stated on a ~280ft run, with no problems this far. It's grounded quite well at the radio end, though 
I was curious how much farther I could consider using this technique.
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"thats what i need, a digi cam for when i need to take pictures. im not going to go around taking photos and stuff." Julio |
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robbinPremium,MVM
join:2000-09-21
Leander, TX
kudos:1 | reply to wirelessdog
said by wirelessdog:Alvarion VL will work fine at 650' just lock the ethernet port on both sides to 10/half. IIRC Alvarion PoE is already 60 volts.
Sounds like this is the answer. |
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