In either GEN-TRACK or FIX-TUNE mode, the upper right section of
the display will show the current center frequency of the notch filter. In
OFF mode, the current notch frequency is shown above the lower left
soft key.
The SINAD mode also provides bandwidth limiting. The lower center
soft key selects the lower band limit (<10 Hz, 22 Hz or 400 Hz). The
lower right soft key selects the upper band limit (>300 kHz, 22 kHz, 22
kHz-QPK, 30 kHz, 80 kHz). The 22 kHz-QPK selection uses the
quasi-peak detector instead of the true RMS detector in accordance
with CCIR-468. The 22 Hz lower limit is only available if the upper
limit is 22 kHz; the <10 Hz lower limit is only available with other
upper limits.
4 Functions
SINAD FUNCTION Descriptions
4-24 ATS-1 Access User's Manual