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7K • Chapter 4
Changes the frequency (pitch) of the CW.
• Enter the password, followed by the 4-digit root number shown, followed by
the 4-digit tone code for your desired frequency.
• The tone code is taken from the Tone Code Table on page A-20. Do not
omit leading zeroes. Tone codes may also be calculated, if desired.
• The frequency range is 100Hz to 5KHz, although most radio systems have
an audio response of 300Hz to 3KHz.
• To select frequencies for the Owner-Fixed Frequency Beeps and CTCSS,
see the applicable commands on pages 4-18 and 10-3.
Command Form:
Command
Select Frequency of CW
Acknowledgment: Sends OK
Errors:
Error
? err 1
? err 2
Default Condition: CW Frequency is 1500 Hz; Tone Code is 0667
Examples:
Let's change the frequency of the CW to 1200Hz. The tone code for 1200Hz is
0833. The command is:
(PW) 06 00 0833 *
4-12
Select Frequency of CW
Form
(PW) 06 00 xxxx *
Meaning
wrong number of digits entered
illegal code entered
Data Digits
Tone Code Table
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