Olson Technology OTM-4000 (PAL I) - Manual (Page 5)

025-000336 REV X2 Page 5
B.) FRONT PANEL MENU ITEM CONTROLS:
Most features of the OTM-4000 I are configurable from the front panel by means of the menu/button
system which includes an LCD panel and 5 buttons. The LCD panel displays the menu(s) and the
currently selected configuration or value.
The “UP”, “DOWN”, “LEFT”, and “RIGHT” buttons are used to move between menus, to select
configurations, and to change values. All items except tuning mode and output frequency will instantly
change to match the display. A new frequency takes effect only when you press the “ENTER” button.
To make other changes permanent, press the “ENTER” button.
Note that when changing the output frequency, the unit’s digital synthesizer may become unlocked
momentarily which could result in operation on an undesired frequency until it re-locks. The OTM-
4000 I will turn it’s RF output off anytime the unit is in an unlocked state, thus preventing unwanted
interference when changing channels.
As illustrated on page 7, there are two menu trees; the main menu tree (on the left) and the sub-
menu tree (on the right). The arrows indicate which buttons to press to move around the menus.
Review each menu and the information below to become familiar with the various functions.
C.) CHANGING MENU ITEMS:
To change a function or value, select the menu containing the item to change using the “UP”, “DOWN”,
“RIGHT”, and “LEFT” buttons. After selecting the correct menu, press the “RIGHT” button to change
a menu item. If part or all of the bottom row starts flashing, you can change that item.
If the entire bottom row flashes (most items), press the “UP” or “DOWN” button to change it. These
buttons have auto-repeat. Press left to cancel change.
For tuning or unit ID (NAME) values, only one character in the bottom row will flash. The “LEFT” and
“RIGHT” buttons select the position to change and the “UP” and “DOWN” buttons change the value.
When the leftmost position is flashing, press “LEFT” to exit the change mode.
When you are through with the change (or if there is no change), pressing the “ENTER” button will
enable the displayed parameter or value, the change mode is exited, and the display will stop
flashing. If you do not press the “ENTER” key, the parameter will return to the original value after a
time-out of about 15 seconds.
3.) SOME MENU-SPECIFIC INFORMATION
A.) Display of NAME and TUNING:
This is the normal (default) display and is the menu shown as the top left menu on page 5 of this manual.
You can not make any change from this menu. The NAME is programmable from the NAME menu
and the tuning is programmable from the TUNING menu. The display will return to this default after
about 30 seconds of button inactivity
If the programmed TUNING MODE is CHAN, the display will be the channel number. If the pro-
grammed TUNING MODE is FREQ, the display will be the frequency in MHz.
For the OTM-4000 I, The tuning MODE should be set-to FREQUENCY.