User's Manual
4
Your data entry begins with the tens column. The hundred's column and the decimal point
are permanently displayed.
The standard Citation 20 will accept any frequency from 150.0000 MHz through 174.0000
MHz, in 2.5 kilohertz steps. Data entry into the thousandths column must be either a 0, 2, 5,
or a 7. The Citation will automatically fill in the last column. A "0" in the thousandths
column yields a "0" in the final column, "2" yields a "5", a "5" yields a "0", and a "7" yields a
"5". Any other entry in the thousandths column is an invalid entry, and the Citation will
return a blinking cursor, requesting valid data. Please see the following example:
Your initial entry is 154.65 .......
154.65 -> you enter "0" -> display shows 154.6500 MHz Valid
154.65 -> you enter "1" -> display shows 154.65?? MHz Invalid
154.65 -> you enter "2" -> display shows 154.6525 MHz Valid
154.65 -> you enter "3" -> display shows 154.65?? MHz Invalid
154.65 -> you enter "4" -> display shows 154.65?? MHz Invalid
154.65 -> you enter "5" -> display shows 154.6550 MHz Valid
154.65 -> you enter "6" -> display shows 154.65?? MHz Invalid
154.65 -> you enter "7" -> display shows 154.6575 MHz Valid
154.65 -> you enter "8" -> display shows 154.65?? MHz Invalid
154.65 -> you enter "9" -> display shows 154.65?? MHz Invalid
If you attempt to enter an invalid frequency, the Citation will either:
1.) Return the blinking cursor to where your initial error happened - requesting you to re-
enter your data. Or .....
2.) Make you complete the programming, leaving at least one "?" as part of the displayed
frequency. If this happens, press the FREQ key again, and re-entry your data.
To change the frequency of a channel that has previously been programmed:
Simply press the FREQ key, and over write the old channel with the new data.
If you make an error in your data entry.......
1.) Complete the frequency, then over write the wrong entry with the correct one. Or....
2.) Press the POWER button, turning the unit off, BEFORE you have completed the new
frequency data entry. Then turn it on again. This will return the channel to its original
frequency.
Once a channel is programmed, it can not be individually cleared from memory.
NAMING THE CHANNEL.....
Enter up to 12 Alpha/Numeric characters to name the channel.