Coax wiring. MoCA between neighbors.
Hi All, I'm trying to find out how coax cables are wired in a residential area to each house. I found out that "drop amp" amplifies the signal just out side the building, and a few neighbors share the drop amp (basically a powered splitter). What other devices are there? I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer? For example, my apartment building has a cabinet that concentrates all coax cables from all units, and the 2~4 coax cables are attached to a device in the cabinet. I'm assuming it is a drop amp and I think MoCa signals can travel across the drop amp. Is my guess correct? Any comments on coax cable wiring between houses or apartments and MoCA technology would be very useful. Thank you, Dongsu
On Jun 10, 2009, at 3:28 PM, Dongsu Han wrote:
I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer?
I can't speak to what they are *supposed* to do, but my experience is that things can be overheard. Last summer I discovered that my Comcast cable had two premium digital channels I hadn't ordered. One was showing soft porn, and while I was sitting there pondering this, it began to fast forward. Not surprisingly, it was fast forwarding over the boring parts and then watching the naughty bits at normal speed. I can only assume that one of the neighboring houses has video-on-demand.
I recall an Article that talked about this and found it quickly... http://www.slate.com/id/2167389 has some links and info you might find useful ~J -----Original Message----- From: Kee Hinckley [mailto:nazgul@somewhere.com] Sent: Wednesday, June 10, 2009 2:41 PM To: Dongsu Han Cc: nanog@nanog.org Subject: Re: Coax wiring. MoCA between neighbors. On Jun 10, 2009, at 3:28 PM, Dongsu Han wrote:
I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer?
I can't speak to what they are *supposed* to do, but my experience is that things can be overheard. Last summer I discovered that my Comcast cable had two premium digital channels I hadn't ordered. One was showing soft porn, and while I was sitting there pondering this, it began to fast forward. Not surprisingly, it was fast forwarding over the boring parts and then watching the naughty bits at normal speed. I can only assume that one of the neighboring houses has video-on-demand.
Thank you. Very interesting story and useful info. I'm also curious about the signal generated from customers from MoCA (multimedia over coax) devices. How many neighbors would be sharing the same coax medium? Does anybody have a guess? I'm guessing neighbors that are connected by the same drop amp would essentially be on the same wire. I would really appreciate any info. Thank you. -Dongsu Justin Horstman wrote:
I recall an Article that talked about this and found it quickly...
http://www.slate.com/id/2167389
has some links and info you might find useful
~J
-----Original Message----- From: Kee Hinckley [mailto:nazgul@somewhere.com] Sent: Wednesday, June 10, 2009 2:41 PM To: Dongsu Han Cc: nanog@nanog.org Subject: Re: Coax wiring. MoCA between neighbors.
On Jun 10, 2009, at 3:28 PM, Dongsu Han wrote:
I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer?
I can't speak to what they are *supposed* to do, but my experience is that things can be overheard. Last summer I discovered that my Comcast cable had two premium digital channels I hadn't ordered. One was showing soft porn, and while I was sitting there pondering this, it began to fast forward. Not surprisingly, it was fast forwarding over the boring parts and then watching the naughty bits at normal speed. I can only assume that one of the neighboring houses has video-on-demand.
AFAIR, you can configure the MoCA adapters to a certain unique ID, not unlike garage door openers. In single-home settings there's usually enough cable loss that sharing is not a problem, but in an apartment complex, you may want to consider making sure there is a return trap on your cable so that only a select range of frequencies (the ones that your STB and cable modem use) can pass thru, and the higher range the MoCA uses does not. Frank -----Original Message----- From: Dongsu Han [mailto:dongsu.han@gmail.com] Sent: Wednesday, June 10, 2009 2:28 PM To: nanog@nanog.org Subject: Coax wiring. MoCA between neighbors. Hi All, I'm trying to find out how coax cables are wired in a residential area to each house. I found out that "drop amp" amplifies the signal just out side the building, and a few neighbors share the drop amp (basically a powered splitter). What other devices are there? I'm also trying to find out whether my neighbors would be able to overhear the MoCA signal from my apartment. Anyone knows the answer? For example, my apartment building has a cabinet that concentrates all coax cables from all units, and the 2~4 coax cables are attached to a device in the cabinet. I'm assuming it is a drop amp and I think MoCa signals can travel across the drop amp. Is my guess correct? Any comments on coax cable wiring between houses or apartments and MoCA technology would be very useful. Thank you, Dongsu
participants (4)
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Dongsu Han -
Frank Bulk -
Justin Horstman -
Kee Hinckley