09-02-2017, 09:34 AM
This is a little complicated, but I think something’s broken and causing the confusion.
A DTV station broadcasts something called PSIP (Program + System Info Protocol) that creates a “virtual channel”, which is different from the “physical channel”. The purpose is so when a TV station changes frequencies, the channel number stays the same.
When there is no PSIP, the TV defaults to the physical channel when viewing that station.
ABC/MeTV uses physical Ch 13, with virtual Ch 4.
NBC/CBS uses physical Ch 22, with virtual Ch 13.
It sounds to me like the PSIP on ABC/MeTV is broken, and when you are rescanning your TV, it’s actually overwriting the correct 13 (NBC/CBS) with the broken one (ABC/MeTV).
You may want to see if you can receive NBC/CBS on Channel 22. This will work on _some_ TV’s.
@Kenney: I don’t know why the 4’s were coming in on 10. Was that a typo? That one doesn’t make sense (although anything’s possible!)
@macuu222: There’s no retransmission contracts involved with 4.1/4.2. Often when something goes wrong with a digital transmitter, other things accompany it. I think their transmitter is just messed up. Maybe struck by lighting?
TV Transmitters need to be restarted every so often, just a desktop computer. Fixes everything 9 out of 10 times :-)
Richard
A DTV station broadcasts something called PSIP (Program + System Info Protocol) that creates a “virtual channel”, which is different from the “physical channel”. The purpose is so when a TV station changes frequencies, the channel number stays the same.
When there is no PSIP, the TV defaults to the physical channel when viewing that station.
ABC/MeTV uses physical Ch 13, with virtual Ch 4.
NBC/CBS uses physical Ch 22, with virtual Ch 13.
It sounds to me like the PSIP on ABC/MeTV is broken, and when you are rescanning your TV, it’s actually overwriting the correct 13 (NBC/CBS) with the broken one (ABC/MeTV).
You may want to see if you can receive NBC/CBS on Channel 22. This will work on _some_ TV’s.
@Kenney: I don’t know why the 4’s were coming in on 10. Was that a typo? That one doesn’t make sense (although anything’s possible!)
@macuu222: There’s no retransmission contracts involved with 4.1/4.2. Often when something goes wrong with a digital transmitter, other things accompany it. I think their transmitter is just messed up. Maybe struck by lighting?
TV Transmitters need to be restarted every so often, just a desktop computer. Fixes everything 9 out of 10 times :-)
Richard