Olson Technology OTM-4000 User Manual
Page 3

025-000331 REV B
Page 3
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. For tuning or channel 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 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
programmed TUNING MODE is FREQ, the display will be the frequency in MHz.
Note that if the TUNING MODE is changed from CHAN to FREQ, the LCD will display the
frequency of the previously-selected channel.
B.) IF INPUT:
This indicates the preferred choice of the normal IF source. A rear panel input or an automatic transfer
could switch to the AUX IF input.
C.) CHANNEL PLAN:
The CHANNEL PLAN determines the OTM-4000 output frequency for a selected channel number.
Tables at the end of this manual list these values.
Note that FCC offsets are automatically provided for the STD and EIA channel plans and that an
offset is applied to all channels in the IRC plan. The HRC channel plan provides no offsets.
D.) NAME:
This menu allows you to program the NAME that appears at the top of the normal (default) display.
Upper case and lower case letters as well as numbers and various symbols are available for use.
E.) COMMAND MODE, BAUD RATE, and ADDRESS:
These functions are only used when the OTM-4000 is configured with the optional remote control
feature.