---->You're confusing cable channel position with over-the-air (OTA) channel position.
Thanks, but not correct. I am well aware of the marketing campaigns you refer to.
---->KPSP is on channel 38, not on channel 2.
Turn on an HDTV in Indio and look at the off-air signal, and channel 58/38 maps as CBS 2.
---->They only use channel 2 for marketing purposes, as they're on cable channel 2.
Not correct, they also use CBS 2 as PSIP identification. I've seen it at the Best Buy in Indio. Punch 2-ENTER on the remote control and KPSP-DT comes up. Seen it, done it. Try 38 and nothing happens. Try 58 and it goes to KPSP-HD off channel 38, and ID's it as CBS-2.
---->Likewise, KSWB is on channel 69 analog and channel 19 digital, not on channel 5. Channel 5 is their cable channel number, which they also use for marketing purposes. Stations can market themselves however they want, but it means nothing to a TV set.
Got news for you: KSWB-DT 38 is transmitting a digital ID as channel WB-5. The engineers at KSWB have set the PSIP to display as WB-5.
When you plug in an ATSC tuner in San Diego, WB5 comes up above XETV 6 in the channel list. Channel 38 appears nowhere. Channel 38 happens to be the location where the tuner goes for the WB-5 programming when a user punches 5 in his remote control (or 69 on most sets, as a "virtual" PSIP setting is also transmitted). Of course, 69 will be reallocated for other uses in 2009.
----> The FCC has decided that after the analog stations go away, digital stations will continue to map to their old analog positions (called the virtual channel number).
Not correct. First, stations are going to be allowed to choose between their analog and digital assignments, in most cases. The channel map designation for KMVD, for example, is 23, the same as its digital assignment. KMVD-TV (analog 31) has been turned off, by FCC permission. And stations are, and will be, allowed to choose which number (or any number) in their PSIP.
Second, some stations are going to choose (or be forced by local congestion issues) to keep their digital signals transmitting from their new assignments, and surrender the old analog assignment instead.
----->So KPSP-LP will continue to be on channel 38. In their case, it will be both actual and virtual, as they will turn off analog operations on channel 38 and turn on their digital signal, also on channel 38 (called a "flash cut").
That's true, but on ATSC tuners it will still map as CBS-2.
----> In San Diego, on a DTV set receiving OTA signals, KSWB-DT should map to 69.1, 69.2, etc., but might also map to 19.1, 19.2, etc. It will not map to channel 5, as that is just its cable channel.
No, channel WB-5 is what the Tribune engineers either are, or will be, programming into the PSIP (depending if they have the newest PSIP generators installed yet). There is no requirement that the PSIP channel map be an accurate reflection of the analog or digital FCC assignment. The FCC ruled that virtual designations are a First Amendment issue - a station has the right to call itself whatever it wants - unless it causes a technical problem. A "virtual" PSIP will only be disallowed if the FCC finds it is intended to create market confusion.
---->These examples are for OTA only. If you get your signals via cable, nothing will change. PSIP won't apply; your cable company will determine where you receive the channel.
Not necessarily. The TV companies are demanding that PSIP data (including programming information and channel maps) not be stripped out of the ATSC data streams when the modulation is ocnverted from 8-VSB to QAM for cable. The cable companies are fighting that tooth and nail. But the whole digital carriage issue has not been ruled on yet by the FCC.