Hafler IRIS Owner's Manual - (11) Distant Station
Holding SCAN for one second results in a FAST-SCAN
mode, which, upon key release, reverts to normal-speed
SCAN to the next detected station. During FAST-SCAN the
tuning process will hold at the band ends, until you release
the SCAN key.
(11-14) THE SPECIAL FUNCTION SWITCHES
(11) DISTANT STATION
All tuners featuring automatic tuning have circuitry to tell
their tuning system when a station is present and tuned
correctly--to stop the tuning process properly on a station.
You may set the sensitivity of the IRIS STATION DETEC-
TOR circuitry to two different levels.
When the DISTANT STATION switch
(11)
is OUT, the STA-
TION DETECTOR will typically stop the scanning process
only on stations strong enough to provide expected high
signal-quality.
Depressing this switch allows much weaker signals to be
accepted by the tuner’s STATION DETECTOR. The
dominant effect is that the tuner will stop on many more
stations, when in SCAN mode. Many of these will likely be
too weak for your listening taste.
This switch also affects the signal threshold for activating
certain panel displays and for audio muting.
Note that depressing this switch does not increase the
tuner’s front-end sensitivity. This function is already
provided by a sophisticated delayed automatic gain control
(AGC) system. This switch only allows you to instruct the
STATION DETECTOR about the strength and quality of
signals you want it to accept--as a “station”.
(12) MUTE OFF
Your tuner has an automatic AUDIO-MUTING system
which (dead) mutes the audio output in a number of situa-
tions, to provide the most pleasant listening and tuning. Its
action is always indicated by the tuner’s red MUTE legend
(19) .
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