11
Operation
General System Operation
Operating the REF10 NANO is very straight-forward! Apart
from the power switche there is only a single push button
rotary encoder (»SELECT«) used to individually turn the four
outputs on or off. Per factory default all outputs are active
upon powering up the device for the first time, so all four
white front panel LEDs will light up accordingly.
Selecting and toggling the outputs
The front panel encoder’s action is stepped and each step will
evoke a new setting. The push button function of the encoder
is used to toggle features.
Rotate the encoder by one step to select an output and the
first LED will start flashing. Turning the encoder by another
step now will cause the next LED to flash while the previous
one returns to a steady light. Thus, it is only possible to select
one output at a time.
As long as an LED is flashing, the respective output can be
toggled with a push of the encoder. When the LED is on, the
output is active. When the LED is off, the output has been
disengaged. Any setting will have immediate effect - it is not
necessary to take any further actions.
The last setting of the REF10 NANO will be stored and preser-
ved after the device has been powered down.
Recommendations for the REF10 NANO
To ensure a long-lasting performance with optimum clock
signal quality that will best enhance your connected devices
we would like to share a few recommendations for using the
REF10 NANO.
•
For best sound performance of the connected devices it is
useful to let the REF10 NANO burn-in for at least 14 days.
Thus, we recommend to leave the unit switched on for that
period of time.
•
Prior to enjoying an in-depth listening session we recom-
mend pre-heating the REF10 NANO for about 20-30 minu-
tes. While the heater generally reaches its operating tem-
perature in about five minutes, the entire oscillator section
takes longer to fully warm up. To ensure optimal perfor-
mance and highest frequency stability, you should grant
your REF10 NANO this additional warm-up time.
•
Keeping the REF10 NANO permanently powered up is ge-
nerally not required as long as you observe the extended
warm-up period described above. We do however advise
against power cycling the unit in short, repeated intervals!
•
As a matter of principle, the REF10 NANO should not be
set up near mechanically vibrating devices. Although the
unit’s case feet are equipped with isolating rubber rings,
excessive structure-borne vibrations can nonetheless in-
terfere with the oscillator and negatively affect the clock
performance and signal quality.
The REF10 NANO should furthermore not be placed in close
proximity to devices emitting strong electromagnetic fields
(such as fluorescent lamps). Even though the electronics of
the unit are encapsulated in a steel enclosure these strong
electric fields can interfere with the sensitive electronics
and also negatively affect the signal quality.
•
We generally recommend disengaging all clock outputs
that are not used for your given set-up to reduce poten-
tial interference as much as possible. Additionally, unused
and disengaged outputs can be fitted with so-called BNC
caps. These are available from various retailers and can be
used regardless of the termination impedance of the REF10
NANO's outputs.
Please note:
The use of so-called BNC terminators is not recommend as
these are straining the system unnecessarily. Thus, to pro-
tect or close BNC outputs not in use, please use BNC caps
only without internal termination resistor!
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