On Mon, 2010-02-15 at 16:22 -0500, Kyle Lil wrote: > Previously I'd had the tuner connected at the end of additional > splitters and devices, but I shortened the chain in troubleshooting. > I'll try attenuating the signal again to see if that helps. I hadn't > consider the possibility that the cable signal might exceed the > devices input limits.
Actually, I've just verified that my antenna and preamp is overdriving my HVR-1600 for two digital TV stations. I could verify independently with my Sony TV, which provides SNR, signal, and Error readouts of the same channels. For me, WJLA and WUSA over the air are *really* strong according to the TV, but my MythTV recordings show errors. Here's the output of femon while MythTV is showing WUSA: status 1f | signal 011d | snr 011d | ber 000001c9 | unc 000001c9 | FE_HAS_LOCK status 1f | signal 011d | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 0000006a | unc 0000006a | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 000007f3 | unc 000007f3 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0113 | snr 0118 | ber 00000836 | unc 00000836 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0122 | snr 0122 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0122 | snr 0122 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0122 | snr 0122 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0118 | snr 0118 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 011d | snr 011d | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 0122 | snr 0122 | ber 00000000 | unc 00000000 | FE_HAS_LOCK SNR is great, but I get errors every once in a while. The pattern looks really similar to what you reported from azap. My problem is subject to weather variations for me, so it doesn't happen all the time. However, clear, cold winter nights seem to lead to the most problems recording these station with my HVR-1600. (I could turn down my amp, but since WETA, a really good station, is a really weak signal for me, I probably won't.) I think you'll just need to attenuate your cable signal before it hits the HVR-1600. Regards, Andy _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
