Posted 18 April 2012 - 07:29 PM
The main channel and the subchannel are both multiplexed into the same signal. Simply receiving the main channel should give you both assuming the PSIP data is compatible with the tuner. It sounds like the Dish tuner has a problem with the encoding of the channel info for the subchannel.
Have you talked with the station to see if they are aware of anyone else in the area with the same receiver having the same problem.
I once had a problem with my old Sanyo ATSC tuner and the local PBS station, no sound whatsoever. Other tuners would work OK, but not the Sanyo, which was OK on all the other channels. Turned out there was an anomaly in the PSIP data - found after I called the station and reported it.
Tuners: Hopper 2000; Hopper w/Sling; 3 Joeys; Samsung SIR-T351; Accurian 6000;2 X HD TiVo; 2 X TiVo Series 2 Stand alone; Panasonic Showstopper 2000
Dish 1000.2 @ 110, 119, 129; dish 500 @ 61.5
Antennas - CM4228; RS U75-R; coathanger; Funke PSP.1922 (stillin the box); paperclip
Displays: Sony VPH D50Q with HD Fury HDMI input; Hitachi 57F59; Sony Bravia LCD;Sanyo 32" LCD; Panasonic 42" plasma
Sony 80GB PS3; Toshiba HD-DVD
Give me a Finco colinear array and I'll rule the world - HA-HA-HA-HA!