Don't know what frequency they use but ppm.co.uk does all the way to 14ghz (our ku band) over dwdm..
From my Android phone on T-Mobile. The first nationwide 4G network.
-------- Original message -------- From: Frank Bulk <frnkblk@iname.com> Date: 02/02/2013 10:10 PM (GMT-08:00) To: 'Scott Helms' <khelms@zcorum.com>,NANOG <nanog@nanog.org> Subject: RE: Rollup: Small City Municipal Broadband Scott: Is there a vendor that supports RFoG on the same strand as ActiveE? Frank -----Original Message----- From: Scott Helms [mailto:khelms@zcorum.com] Sent: Saturday, February 02, 2013 3:30 PM To: NANOG Subject: Fwd: Rollup: Small City Municipal Broadband
But it doesn't matter either way, except in cross-connects between my MDF and my colo cages; except for GPONs apparent compatibility with RF CATV delivery (which I gather, but have not researched) is just block-upconvert, I don't care either way; there's no difference in the plant buildout.
This is not correct. DOCSIS is an MPEG stream over QAM or QPSK modulation and there is nothing about it that is compatible to any flavor of PON. In fact if you look at the various CableLabs standards you'll see DPoE ( http://www.cablelabs.com/dpoe/specifications/index.html) which lists how a DOCSIS system can inter-operate and provision an PON system. If you look at the two largest PON networks (FIOS and Uverse) you'll see the two different approaches to doing video with a PON architecture. Verizon is simply modulating a MPEG stream (this is block compatible to a cable plant, in fact its the same way that a HFC network functions) on a different color on the same fiber that they send their PON signalling. ATT takes another approach where they simply run IPTV over their PON network. I've listened to presentations from Verizon's VP of Engineering (at that time) for FIOS and he said their choice was driven by the technology available when they launched and they did modulated RF over their fiber instead of IPTV because that technology wasn't as mature when they started. Verizon's approach may be what someone was thinking of when they said that PON was compatible to cable signaling but that's not how it works.
Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274
-- Scott Helms Vice President of Technology ZCorum (678) 507-5000 -------------------------------- http://twitter.com/kscotthelms -------------------------------- -- Scott Helms Vice President of Technology ZCorum (678) 507-5000 -------------------------------- http://twitter.com/kscotthelms --------------------------------