FM Transmitter
Sistemas Electrónicos S.A EM 100 DIG
Technical Manual - v1.2 - November 2005 22
WARNING
Gaining again access to the equipment will require Factory reprogramming or changing the
internal Control Unit .
For practically any parameters that may require some setting in the field, the 2nd level password is
enough and may be used for any standard service requirement. The main purpose of the existence
of the 3
rd
level is a security assurance for the user if he loses control on the lower password levels.
Only very few critical parameters, like limiter permission or frequency step control requires this
password, as in some countries this functions are not allowed to be freely chosen.
2.5.2 Factory Default Passwords.
These are the factory default passwords:
Level 1: P001
Level 2: P002
Level 3: ABCD
For what previously said, be sure to change at least the 3
rd
and possibly the 2
nd
level as soon as you
receive and turn on the equipment.
For security purpose the 3
rd
level password may be factory changed from the default value before
the transmitter is shipped, in consequence of a specific final customer request.
2.5.3 Menu & Commands Description.
The hierarchical tree of the menu is depicted in the following Figure 2-1 , with a small number near
the left side of each field for easy reference. In the following pages we will examine each menu field
and option.
All of the first column fields require the first level password authorization to be navigated. In a similar
way, practically all the second column fields require the second level authorization, as some in the
third column.The third level is required only by some functions in this last column. Navigation through
the menu screens is quite straightforward and natural, with the direction keyboard. "Up"and
"Down"keys vertically scrolling the screens, while the "Left"and "Right" keys horizontally scrolls the menu.
Moving to the right may be impeded by the password permission, while returning to left is always
possible.
The <OK> key changes from scrolling to programming mode, if allowed in the field. Another push on
the <OK > key will confirm the input data. When in program mode, the up and down keys will
change the character, while the left and right keys will move the cursor on the field.
Pushing on the <CANCEL> key will abort the input while repeated escape commands will reset the
menu screen to the default one (# 00).
A local input time-out will automatically cancel the command mode resetting input data if this is not
confirmed in 60 seconds after the last variation.
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