diff options
Diffstat (limited to 'gr-atsc/python/atsc/atsc_rx.py')
| -rwxr-xr-x | gr-atsc/python/atsc/atsc_rx.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gr-atsc/python/atsc/atsc_rx.py b/gr-atsc/python/atsc/atsc_rx.py index 940eeac4bd..1730763567 100755 --- a/gr-atsc/python/atsc/atsc_rx.py +++ b/gr-atsc/python/atsc/atsc_rx.py @@ -32,7 +32,7 @@ # complex samples / sec, then lowpass filters with a cutoff of 3.2MHz # and a transition band width of .5MHz. Center of the tv channels is # now at 0 with edges at -3.2MHz and 3.2MHz. This puts the pilot at -# -3MHz + 309KHz. Next a root raised cosine filter is aplied to match the one +# -3MHz + 309KHz. Next a root raised cosine filter is applied to match the one # in the transmitter and thus reduce ISI. The phased locked loop then locks to # the pilot and outputs just the real part of the signal ( as information is # not stored in the phase with atsc ), this is then feed to the bit lock @@ -79,7 +79,7 @@ def graph (args): ilp_coeffs = filter.firdes.low_pass(1, input_rate, 3.2e6, .5e6, filter.firdes.WIN_HAMMING) ilp = filter.interp_fir_filter_ccf(3, ilp_coeffs) - # Move the center frequency to 5.75MHz ( this wont be needed soon ) + # Move the center frequency to 5.75MHz ( this won't be needed soon ) duc_coeffs = filter.firdes.low_pass ( 1, 19.2e6, 9e6, 1e6, filter.firdes.WIN_HAMMING ) duc = filter.freq_xlating_fir_filter_ccf ( 1, duc_coeffs, -5.75e6, 19.2e6 ) |