Ritron Patriot RPM-160 User manual - page 14
OPERATION______________________________________________________
WHAT THE RADIO TONES MEAN
The RITRON RPM mobile responds to certain instructions by sounding a tone or series of tones. These tones can
tell you whether the radio is working as you expect.
Power On: Single high frequency tone when the radio is turned on.
Programmable Buttons: Single high frequency tone when the button is pressed.
Receive Courtesy Beep: Single high frequency tone at the end of a received call to let the user know when to
reply.
Transmit Clear to Talk: Single high frequency tone after the PTT is pressed to let the user know when to begin
speaking.
Busy Channel Lockout: A repeating single low frequency tone when the PTT is pressed while the channel is
busy.
Transmit Time-Out: A repeating single low frequency tone after the PTT has been pressed longer than the
transmit time-out time period.
2-Tone Decode: A fast alternating high and low frequency tone when the radio has decoded a valid 2-tone signal.
Start/Resume Scan: A single low frequency tone when the radio begins/resumes the channel scan function.
Last Active Channel: A single low frequency tone to alert the user what channel was last received during the
channel scan.
Priority Scan Channel: A single high frequency tone during the channel scan to alert the user the Priority channel
has been received.
Out-Of-Lock: A slow alternating high and low frequency tone to alert the user the radio synthesizer is not
operating correctly.
Low Battery: A short high frequency tone every 20 seconds to alert the user that the supply voltage to the radio
has dropped below the minimum usable voltage.
Channel 1 Marker Tone: When incrementing or decrementing the channels, a long, high frequency tone to alert
the user that the radio display is at Channel 1.
Monitor/Squelch: If one of the programmable buttons is programmed for MONITOR and a channel is
programmed for carrier, tone, or 2-Tone, when the Monitor button is pressed a single, double, or triple high
frequency tone will be heard.
Tone Squelch – single tone
Carrier Squelch – double tone
2-Tone Squelch – triple tone
CHANNEL SELECTION
The RPM mobile provides 15 channels, each of which may be “dealer” programmed. The first nine channels
appear on the display as 1 through 9, and the next six channels are displayed as A through F (with b, c, and d
displayed as lower case letters).
You can move forward or backward through the channels, depending upon the programming of the programmable
buttons. If the buttons are programmed for Channel Up and Channel Down, then pressing and releasing the button
programmed for Channel Up will increment the displayed channel. Pressing and releasing the button programmed
for Channel down will decrement the displayed channel. If only one button is programmed for channel selection,
either Channel Up or Channel Down, then pressing and releasing the button will cause the display to either