Replying to myself is the first sign that I need to be committed to a mental institution. So here goes. On Wed, 4 Nov 2009, BOUWSMA Barry wrote: > The other possibility, given that two of the four inputs to > your multiswitch work, is that the two low-band inputs have > been crossed. Thinking more about this, I don't think this is the case, if someone hasn't already corrected me -- there is a range of frequencies which, last time I scanned, were shared by both polarisations, with identical symbol rates. Although this was not legitimate input for an earlier `scan' and I've hacked a script to work around this. ### frequency pairs, h+v, mostly 27500 from 11200 upwards S 11222170 H 27500 S 11223670 V 27500 # S 11259670 V 27500 #### This has an odd SR.... NO MORE... S 11264470 H 22000 S 11261170 H 27500 # S 11307000 V 27500 S 11307000 H 27500 # S 11343000 V 27500 #### This has an odd SR.... NO MORE... S 11344000 H 22000 S 11344500 H 27500 # S 11388830 H 27500 S 11390330 V 27500 This continues, more or less, through 11500. In other words, if your two low-band inputs to the multiswitch were reversed, you'd still get something on the above frequencies, even if the actual parameters you'd be reading wouldn't match what is actually transmitted. Sorry for the misleading info I posted earlier. If there is any cabling problem, I'm positive it would have been noted as the BBC channels are certain to be ones checked by any halfway competent technician. As far as the possibility that your tuner card isn't properly switching into low-band, if you were to modify your scan file so that the successfully-tuned frequencies above 11700 are repeated but with a value corresponding to the different IF frequency, and you can again receive the same services, then that would point to that problem. I'd give an example, but that would require me to think. But here's the idea -- if you've tuned 11720, that's with an IF of 10600. With an IF of 9750, you'd want to be tuning to 11720 - (10600-9750) MHz. If that makes any sense. thanks, barry bouwsma -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
