Originally Posted by gosmond
Here's a question:
When I do the "channel scan" function on the TV, where it takes 5 to 15 minutes to search for channels, if it does NOT find a channel during that scan (say, KTSF,) does it then completely lock out that channel from any future reception? (I hope not.) I am manually punching in 27 (and 27.1, .2, etc.) on my remote, which yields "no signal" on the TV, and then I'm using the Diagnostics feature to try to antenna-hunt for some sign of signal.
If it's the case that the channel MUST be located first by the TV's auto-scan feature in order to even be considered for any future reception attempt (which would be utterly assinine programming, but certainly possible), then I need to start from scratch.
Your suggestion to use another TV as a test / verifier is a good one; I'll look into that.
I have a Sony Bravia XBR5 from late 2007. Unless a channel is recognized during a scan, the channel does not exist. New channels do not show up until I re-scan. If it doesn't pick up a channel when scanning, due to low signal levels for example, that channel will not be in the channel list. It could be putting in a signal of 33 dB SNR, but the tuner won't recognize it until I re-scan and get it into the list.
So... do a re-scan before you go any further. You could spend hours trying to find KTSF, but unless it's in your channel list made with a scan, you won't find it.
There are four transmitters on Mt. San Bruno: KNTV 11, KTSF 26, KFTL 28 and KKPX 65. Do you get 11, 28 and 65? That would indicate whether or not you're receiving signals from Mt. San Bruno.
As for the channel numbers, there is the channel that the station transmits on and also the "virtual channel" that the station sends out that's displayed on your TV set. The "virtual channel" is the station's old analog channel number.
In some cases, like KGO and KICU, the transmitter and virtual channels are the same. KGO transmits on channel 7 and channel 7 is their virtual channel. KICU transmits on channel 36 and channel 36 is their virtual channel. In most cases, though, the transmitter and virtual channels are different. KTVU is virtual channel 2, but they transmit on channel 44. KRON is virtual channel 4 but they transmit on channel 38. KTSF is virtual channel 26, but they transmit on channel 27. Take a look at my DTV channel lists linked below to see what the transmitter channels are for each channel.
Good luck with your reception efforts, Gosmond!