VK3RTV ATV Repeater Touch Tone Commands

DTMF TONES

COMMAND	FUNCTION	SCREEN CAPTURE	NOTES
*	Clear command		Should precede every command.  eg.   * command  #
#	Load command		Should follow every command.  eg.      * command  #
* 4 #	Return to received video		Cancel other functions that are running and return to received video
* 0 1 #	Colour Bar		Times out after approx 10 min
* 0 2 #	Colour Bar and Tone Burst		Times out after approx 10 min
* 1 0 #	Beacon Mode		Several pages of text over colour bars
* 1 1 #	Digital Signal Report		The Digital Receiver Signal Report brings up the relevant O.S.D. for Signal Strength and Quality. This feature will be installed shortly. Digital signal strength received at VK3RTV
* 1 3 #	Analogue Signal Report		Analogue signal strength received at VK3RTV in 5 steps
* 2 0 #	Local video repeater shack interior		Camera inside repeater building.
* 2 2 #	Digital Receiver Exit		The Digital Receiver Exit Command is there in case the receiver does not respond correctly to the IR commands. Send as many ‘exits’ as is necessary to clear the OSD.

Note

Tones must NOT be distorted and are sent on the audio subcarrier of the signal accessing the repeater. Most commands take approximately 5 seconds to load from the control computer.

The touch tones generate a corresponding binary code, TT01 = $01, TT02 = $02, TT0.TT3 = $03 etc etc. The micro reads the binary code whenever it gets TT#. TT* is really only required if you have incorrectly loaded a code. The decoder is reset after completion of the operation. The total control program for the repeater is written in 6800/68HC 11 assembler.