51–60 of 64 posts
I bet there was something physically wrong with the cat5 wiring as the actual reason it couldn't do gigabit.
Despite claims to the contrary, gigabit will work over cat 5 (just not 5e!) in the majority of cases.
There’s something even better than MOCA. Black electrical tape. You tape the cat5 to the end of the coax and then pull really hard and then you get great performance.
i believe, in usa, according to building code wires should be stapled to studs (if wiring done during construction). i tried to pull out one stapled wire, it didn't really work
I have tried MOCA, but it runs at higher frequencies than cheap European coaxial was designed for (lower frequencies for terrestrial television) and had stability/performance issues due to this. There's an alternative called G.hn over Coaxial, that runs at 100-200Mhz which seems to fair much better on crappy coaxial, at the cost of max bandwidth (500Mbps-1000Mbps) and harder to get hardware. The manufactures of G.hn2…
Given that WiFi is meant to work over the air, you could probably get a set of access points, RP-SMA to type-F adapters, and a set of attenuators and connect them back to back over basically any random coax. The loss is higher in the coax than in the air but there should be a noise floor consistent with transistor noise at room temperature. You'd want to start with as many pads as possible, so something like >80 dB o…
But household TV coax in the States (RG-59, RG-6, RG-11, and friends) is 75 Ohm.
And impedance matters. How much it matters varies by application, but it can be very important. There's more going on in bit of coax than a shielded conductor[1]. (Relatedly, twisted pair cabling like Cat5e has more going on than a few pairs of wires that happen to be twisted.)
But the concept of having a pair of radios connected together with coax does, of course, work fine as long as the I's are crossed and the T's are dotted. I've set up PtP Wifi-ish wireless links on the bench with attenuators and coax jumpers instead of antennas, but I kept the characteristic impedance consistent throughout. (Many-to-many networks are also possible, with similar caveats.)
[1]: Similarities of Wave Behavior, as presented by Dr. J.N. Shive, 1959. https://www.youtube.com/watch?v=DovunOxlY1k
I have tried MOCA, but it runs at higher frequencies than cheap European coaxial was designed for (lower frequencies for terrestrial television) and had stability/performance issues due to this. There's an alternative called G.hn over Coaxial, that runs at 100-200Mhz which seems to fair much better on crappy coaxial, at the cost of max bandwidth (500Mbps-1000Mbps) and harder to get hardware. The manufactures of G.hn2…
G.hn also is available as a power line technology too. I'd used HomePlug powerline for years in various houses/apartments. Some links would be 150Mb/s, others struggled to keep 20Mb/s, depending. I had high hopes G.hn2 was going to be a lot better, but both Nexuslink & Comtrend 2Gb/s failed to make a significant difference for me versus the HomePlug, still usually under 40Mb/s. That house had particularly bad wiring…
I have tried MOCA, but it runs at higher frequencies than cheap European coaxial was designed for (lower frequencies for terrestrial television) and had stability/performance issues due to this. There's an alternative called G.hn over Coaxial, that runs at 100-200Mhz which seems to fair much better on crappy coaxial, at the cost of max bandwidth (500Mbps-1000Mbps) and harder to get hardware. The manufactures of G.hn2…
I have ancient coax in the US on my house built in the 70s, leading to syncing at lower bandwidth often on my moca, sometimes as low as 100Mb. Luckily it runs outside the house, so at some point I’ll replace it with newer cable and actually get the theoretical 2.5 Gb.
When I tried MOCA, disabling the upper frequencies on the devices would lead to a much stable performance, at the cost of speed. MOCA seems designed with cable networks in mind.
G.hn had no issues, and the latency is much lower than Moca (1-2ms vs 6ms).
I have tried MOCA, but it runs at higher frequencies than cheap European coaxial was designed for (lower frequencies for terrestrial television) and had stability/performance issues due to this. There's an alternative called G.hn over Coaxial, that runs at 100-200Mhz which seems to fair much better on crappy coaxial, at the cost of max bandwidth (500Mbps-1000Mbps) and harder to get hardware. The manufactures of G.hn2…
> The manufactures of G.hn2 Coaxial adapters seem to be stingy about selling them to individuals. I can find several at Amazon (Germany). For example https://www.amazon.de/GIGA-Copper-Ethernet-Netzwerk-Koaxialk...
Earlier quoted context omitted.
i believe, in usa, according to building code wires should be stapled to studs (if wiring done during construction). i tried to pull out one stapled wire, it didn't really work
There aren't any universally-adopted residential building codes in the US. (Things like the National Electric Code and Universal Plumbing Code simply aren't at all what their titles may appear to suggest.)
i guess catX and coax are low voltage and covered by nec
Earlier quoted context omitted.
There aren't any universally-adopted residential building codes in the US. (Things like the National Electric Code and Universal Plumbing Code simply aren't at all what their titles may appear to suggest.)
https://www.nfpa.org/education-and-research/electrical/nec-e... i guess catX and coax are low voltage and covered by nec
Some places have not broadly adopted the NEC at all. For instance: In Ohio, NEC adoption is handled at a more-local level, and many places simply have never handled that at all.
My point is that things like the National Electrical Code simply aren't "national" at all. Regardless of how it is named, it is a privately-published rulebook that jurisdictions can elect to use, but are in no way required to use.
Earlier quoted context omitted.
https://www.nfpa.org/education-and-research/electrical/nec-e... i guess catX and coax are low voltage and covered by nec
Except for places that have not adopted the NEC, which are numerous and not at all difficult to find. Some places have not broadly adopted the NEC at all. For instance: In Ohio, NEC adoption is handled at a more-local level, and many places simply have never handled that at all. My point is that things like the National Electrical Code simply aren't "national" at all. Regardless of how it is named, it is a privately-…