Appendixes A-7
Appendixes
Analog Betacam playback (DNW-A25)
Video
Audio (LNG)
a) at 10 dB below reference level (+4 dBm)
b) at 3% distortion level
c) THD at 1kHz reference level (+4 dBm)
Metal tape
Oxide tape
Bandwidth Y 30Hz to 4.5MHz
+0.5 dB/–4.0dB
30Hz to 4.1MHz
+0.5 dB/–6.0dB
R–Y/B–Y 30Hz to 1.5MHz
+0.5 dB/–3.0dB
30Hz to 1.5MHz
+0.5 dB/–3.0dB
S/N Y 51 dB or more 48 dB or more
R–Y/B–Y 48 dB or more 45 dB or more
K factor (2T pulse) 2% or less 3% or less
LF non-linearity Y 3% or less
R–Y/B–Y 4% or less
Y/C delay 20 ns or less
Metal tape Oxide tape
Frequency response
a)
50 Hz to 15 kHz
+1.5 dB/–3.0dB
50 Hz to 15 kHz ±3.0dB
S/N
b)
72 dB or more (Dolby NR on,
weighted IEC-179A ave.)
50 dB or more (Dolby NR off,
weighted DIN Audio rms)
Distortion
c)
1.5% or less 2% or less
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