S-cmd 03 low pass filter select, S-cmd 04 transmitter ptt delay timer, S-cmd 05 force ptt on – Pacific Research Solutions RI-1 User Manual

Page 37

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Pacific Research Solutions

RI-1 and PE-1 User Manual

Page 31

S-Cmd 03 LOW PASS FILTER SELECT

This controller has a low pass filter used to limit audio response to the transmitter. This filter removes high frequency audio
that can cause adjacent channel interference. The filter is selectable for different application. If you are operating in a narrow
band environment (12.5 to 15 KHz channel spacing) it is recommended to select the 2500 Hz cutoff frequency. If you are
operating in a wide band environment (25 KHz or more channel spacing) it is recommended to use the 3500 Hz cutoff
frequency.

SYNTAX:

02

[Mode]

STORAGE:

RAM/EEPROM

PARAMETERS: Mode 0 = 2500 Hz Cutoff.

Mode 1 = 3000 Hz Cutoff..

Mode 2 = 3500 Hz Cutoff..

Mode 3 = 4000 Hz Cutoff..

Mode 4 = 4500 Hz Cutoff..

DEFAULT: Mode 1 (Reject Sub-Audio)

EXAMPLE: 02 0 Turn off the sub-audio filter and pass CTCSS on the repeater output.

S-Cmd 04 TRANSMITTER PTT DELAY TIMER

This timer keeps the transmitter keyed after the receiver or auxiliary input has dropped. The repeater carrier delay is set in
tenths of seconds (100 milliseconds) increments.

SYNTAX:

04

[Time]

STORAGE:

RAM/EEPROM

PARAMETERS: Time 0 = No carrier delay,

1 to 255 = tenths of seconds
(1/10 Seconds or 100 milli-seconds)

DEFAULT: 30 (3.0 Seconds)

EXAMPLE: 04 055

Set carrier delay to 5.5 seconds

04 10

Set carrier delay to 1.0 second

S-Cmd 05 FORCE PTT ON

Keys up and “locks on” the transmitter for the selected number of seconds. This provides a constant transmitter signal for
running tests such as measuring power output or checking signal coverage as you drive around. Once the timer has expired, it
will not reset itself. You can clear or reset this timer by entering a zero value for the time.

SYNTAX:

05

[Time]

STORAGE: RAM (Power on reset = 0)

PARAMETERS: Time 0 = Reset timer, 0.1 to 25.5 = Seconds, in tenth of second increments
DEFAULT:

0

EXAMPLE: 05 120

Lock on the repeater transmitter for 12.0 seconds

05 255

Lock on the repeater transmitter for 25.5 seconds

05 0

Reset this timer

RX Active

PTT Output

PTT Delay

S-Cmd 04

Courtesy Delay

S-Cmd 08

Courtesy Msg

S-Cmd 32 1

PTT Timeout

S-Cmd 10

Reset PTT Timeout Timer

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