BX-240 • 17
© Box 73 Amateurfunkservice GmbH 2017
Display Update Cycle
For individual frequency measurements
there are three options available,
Slow
,
Medium
and
Fast
. The selection has no
influence on the measuring accuracy but
very much on the energy demands of the
device. Outside of the measuring time,
the oscillator and other components are
switched off and the microprocessor
clocked at a lower frequency. A longer dis-
play duration (selection
Slow
) therefore
results in a lower energy requirement (Fig.
30).
Reset
After selection and confirmation of the
menu item, all parameters are reset to the
factory settings. The master calibration
and all stored display views are cleared
from the EEPROM (Fig. 31).
Forced Reset (without menu item)
In the unlikely event of the device becom-
ing unresponsive even when switched off
and on again, a forced reset can be carried
out without recourse to the menu.
To do this the analyzer must be switched
off. Then all three buttons should be
pressed and held, then if the power is
switched on all parameters should reset to
factory default settings and the device
work again as per normal. If necessary the
language, lighting and frequency settings
must be corrected.
However, the forced reset does not clear
existing master calibration values nor
stored display views. Any existing master
calibration values must be declared as
valid, to do this select
On
under
Operating
Mode
Æ
Setup
Æ
SOL
.
Fig. 30: The display update cycle speed may
be selected,
fast
,
medium
,
slow
.
Fig. 31: This menu item allows a complete
reset to factory default settings.
