Please read the following manual carefully before using your ...

7.0 The main menu
SPECTRAN as an “EVENT RECORDER“ for recording intermittent signals:
simply leave SPECTRAN running in HOLD mode until the event in question
occurs.
HOLD mode is also indispensible for conducting measurements according to the
panning approach (see also the chapter on “correct measurement“)
Another application where HOLD mode is extremely helpful is exposure limit
calculation: You can use data acquired in HOLD mode for quick and easy comparison
of exposure limits. You do not even need to start a new measurement,
as all markers and other relevant information is also preserved. Simply switch to
exposure limits mode after measurement, and the corresponding result is displayed
immediately.
A typical measurement result after evaluating a room for 20 minutes
with HOLD mode active. You can instantly see that only two main signal
sources / frequency bands have been detected during the entire
measurement (30Hz and 50Hz).
HINT: You can switch HOLD mode on and off at any time by pressing the dot
key (switching it off deletes the HOLD memory).
ATTENTION: Please note that when using the Reference Level “Auto“ setting in
combination with HOLD mode, the spectrum display can quickly get “filled up“
because of the automatic scaling. Thus, such a combination is generally only of
limited use.
7.15 Unit (Select physical unit)
The Unit setting allows you to specify the physical unit used to display measurement
results. Options are "Tesla", "Gauss" and "A/m". Two further options,
“Volt“ (external SMA connector) and “V/m“ (E-field sensor) are automatically
chosen when the corresponding sensor is selected.
Hint: In “EXPOSURE LIMITS“ mode, the measurement result additionally gets
displayed as a figure and bargraph. Hence, you can display the result with two
units AT ONCE (for example, Gauss and Tesla SIMULTANEOUSLY).
Hint2: You can even use this feature for conversion of units. Simply “freeze“ the
current reading using HOLD mode, then choose a different unit. The conversion
result will be displayed instantly (as far as physically sensible).
Firmware BETA50 / © 2005-2009 by Aaronia AG, DE-54597 Euscheid, www.aaronia.de 29