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Example Strings: ASCII and hexadecimal examples are shown below. The commas
in the Hex code example are merely for your ease of reading and are not required in
transmission.
Jump to Preset 5 ASCII: W 1 3 1 05 Hex: 57,20,31,20,33,20,31,20,30,35,0D
Jump to Preset 17 ASCII: W 1 3 1 17 Hex: 57,20,31,20,33,20,31,20,31,37,0D
Direct Tune to 88.5 FM ASCII: W 1 7 088.50 Hex: 57,20,31,20,37,20, 30,38,38,2E,35,30,0D
Direct Tune to 105.3 FM ASCII: W 1 7 105.30 Hex: 57,20,31,20,37,20,31,30,35,2E,33,30,0D
Direct Tune to 680 AM ASCII: W 1 7 0680 Hex: 57,20,31,20,37,20,30,36,38,30,0D
Direct Tune to 1580 AM ASCII: W 1 7 1580 Hex: 57,20,31,20,37,20,31,35,38,30,0D
Set Max Preset to 6 ASCII: W 1 4 06 Hex: 57,20,31 ,20,34,20,30,36,0D
Set Max Preset to 15 ASCII: W 1 4 15 Hex: 57,20,31 ,20,34,20,31,35,0D
Save as Preset 2 ASCII: W 1 3 2 02 Hex: 57,20,31,20,33,20,32,20,30,32,0D
Save as Preset 19 ASCII: W 1 3 2 19 Hex: 57,20,31,20,33,20,32,20,31,39,0D
RS-232 Feedback: The ZtunerV.2 will send unsolicit ed feedback anytime an IR, front
panel or RS-232 command is issued. This means that you do not need to request
feedback every time the station is changed. The start of a feedback string is indicated by
an asterisk (*). The end of a feedback string is terminated by a carriage return. You can
also poll the ZtunerV.2 for this information at any time by sending command R 1
13.
Typical feedback looks like this:
*PW1 BD1 PR03 FR107.90
This would indicate Power is On , Band is FM, this is Preset 3 and the Frequency is 107.9.
The feedback breaks down like this:
PW0 Indicates power off
PW1 Indicates power on
BD1 Indicates current band is FM
BD2 Indicates current band is AM
PR15 Indicates current preset is 15
PR03 Indicates current preset is 3
FR102.10 Indicates current frequency is 102.1
FR088.50 Indicates current frequency is 88.5
FR001680 Indicates current frequency is 1680 (AM)
FR000560 Indicates current frequency is 560 (AM)
* Indicates start of transmission
Carriage return indicates end of transmission
Note: Mono/Stereo status is not automatically sent. You can requested if a station is
tuned in stereo or mono with command R 1 9< CR>. A 1 is returned for Stereo and a 2
for Mono. The exact string returned would look like 1 for Stereo or 2 for
Mono.
