Not exactly. You must add the upper and lower keying sidebands spacing
to the upper and lower tones to get an aproximate idea of the occupied
bandwidth. The sidebands lie at half the signalling speed around the
carriers, and the keying harmonics, whose level and width depends on the
I understand, Jose. My question is whether the inner tones -- the ones
between the ensemble's highest and lowest tones -- contribute to the bandwidth
if their magnitudes are identical to those of the lowest and highest tones.
Asked another way, is the bandwidth of 300 baud 1 khz 4-tone FSK
Dave Bernstein escribió:
I understand, Jose. My question is whether the inner tones -- the
ones between the ensemble's highest and lowest tones -- contribute to
the bandwidth if their magnitudes are identical to those of the
lowest and highest tones.
I expect little contribution from
In n-ary FSK, if all tones in the ensemble have identical maximum magnitudes,
then isn't it true that the maximum bandwidth will be identical that of binary
(2-tone) FSK with a shift whose value is difference in frequency between the
highest and lowest tones in the ensemble?
73,
--- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@...
wrote:
Hi Andy,
There is no simple universal relationship between
the shift and the transmitted signal bandwidth,
However, for the particular case of binary FSK where the
shift is wide compared to the bit rate, you
Hi Andy,
There is no simple universal relationship between
the shift and the transmitted signal bandwidth,
because there are so many factors other than shift
that contribute to the bandwidth of an FSK signal:
1. Symbol rate
2. Shape of waveform
3. Symbol transition point
4. Filtering
5.
