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Pacific Research Solutions RI-300e User Manual
Page 59
S-Cmd 28 Continued TONE REMOTE MODE and NOTCH FILTER CONTROL
SYNTAX: 28 [Item] [Data]
READ BACK: 28 [Item]
STOREAGE: RAM/EEPROM
PARAMETERS: Item 0 = (Tone remote decode mode) Defines the “decode operating mode” of the tone remote feature.
Data = 0 (Disable tone remote decode),
1 (Decode tones from receiver input),
2 (Decode tones from the auxiliary input),
3 (Decode tones from the telephone input),
4 (RX Tone Remote tone pass, pass RX audio when PTT tone is decoded),
5 (RX Tone Remote tone mute, mute RX audio when PTT tone is decoded),
6 (AUX Tone Remote tone pass, pass AUX audio when PTT tone is decoded),
7 (AUX Tone Remote tone mute, mute AUX audio when PTT tone is decoded),
8 (TEL Tone Remote tone pass, pass Telephone audio when PTT tone is decoded),
9 (TEL Tone Remote tone mute, mute Telephone audio when PTT tone is decoded).
Item 1 = (Decoder response) Defines the amount of time that a tone must be present before it is decoded.
This function is used to reduce faulting of the decoder.
Data = 0-15 (Decoder response in 18 millisecond increments plus 36 milliseconds.
Example, 0 = 36mS, 1 = 54mS, 2 = 72mS…)
Item 2 = (No tone timer) Defines the amount of time that a tone can be absent before the controller
declares that no tone is present on the input of the decoder. This function is used to reduce
fallout of the decoder.
Data = 0-7 (Decoder no tone in 20 millisecond increments plus 10 milliseconds.
Example, 0 = 10mS, 1 = 30mS, 2 = 50mS…)
Item 3 = (Notch filter select) Defines where the notch filter will be inserted in the controller audio path.
The notch filter is typically tuned to 2175 Hz and is used to reject the 2175 Hz PTT or Guard
tone. You must install an optional notch filter for this feature to function correctly. Changing
the filter’s crystal can modify the notch filter frequency. See the notch filter data sheet for other
notch frequencies.
Data = 0 (Disable), 1 (Repeater), 2 (Auxiliary), 3 (Telephone)
Item 4 = (Tone remote PTT encode mode) Defines the PTT encode operating mode of the tone remote.
Data = 0 (Disable tone remote encode),
1 (Encode PTT tone on transmitter output when active),
2 (Encode PTT tone on transmitter output when not active),
3 (Encode PTT tone on telephone output when active),
4 (Encode PTT tone on telephone output when not active).
Item 5 = (Tone burst timer) Defines the amount of time that a tone is encode in the burst mode. Use this
function to select functions on the far end of a tone remote system.
Data = 1-99 (Encode tone in 100 millisecond increments.
Example, 1 = 100mS, 2 = 200mS, 3 = 300mS…)
Item 6 = (Tone burst encode) Select 1 of the 8 tones to encode for the programmed time based on the
Tone Burst Timer. Use this function to select functions on the far end of a tone remote system.
This function first looks at the mode of item 4 to determine the destination of the tone burst. If
item 4 is disabled, then item 1 is checked. If item 1 is disabled, then the tone is sent over the
transmitter.
Data = 0-8 (Tone numbers as defined by S-Command 27.
Example, 0 = No Tone, 1 = Tone 1 (PTT Tone), 2 = Tone 2…)
DEFAULT: Item 0 = 0, (Disabled)
Item 1 = 2, (72 milliseconds)
Item 2 = 3, (70 milliseconds)
Item 3 = 0, (Disabled)
Item 4 = 0, (Disabled)
Item 5 = 2, (200 milliseconds)
Item 6 = N/A, Value not stored in memory.