Auto-range Transpond System (ARTS™)*Show All Collapse All
ARTS allows radios operating on the same frequency to monitor each other's range, so they are alerted when
in or out of communication range occurs; the EP450s portable radio is the only Motorola radio that offers this feature.
Can ARTS be programmed to work on a specific channel or all channels in EP450s?
ARTS is programmable by channel and similar to managing talkgroups. With ARTS activated, you can designate
"coverage groups" to monitor users to stay in communication range.
If five users have ARTS activated, what determines when a EP450s radio is out of range?
Is one radio designated as the "base" to which all others are monitored?
The most common configuration for radios operating ARTS is TX/RX mode. It enables each radio to transmit and receive
ARTS signaling to fully monitor the communication range. If a radio is out of range with any of the other four radios, the user
is notified of their status and the need to re-coordinate connectivity.
If multiple EP450s radios have ARTS activated and one is out of range, will the user have
to get back in range with all EP450s radios before ARTS recognizes the EP450s radio in range?
No. Once a radio re-establishes a "handshake" with another ARTS-equipped radio, it will alert the
user it is back in communication range.
If a EP450s radio is programmed for Tx-only, does it notify the user if it does not
make a connection with another ARTS-activated EP450s radio?
No. The Tx-only transmits a signal to allow radios in RX-mode know if they are still in communication range.
How does ARTS affect battery life?
The default polling interval in the radio programming provides maximum battery conservation. This default value
is different for each radio series. The polling frequency can be adjusted by the Dealer to increase or decrease as needed.
For LCD radios, does ARTS provide both an audible and visual alert?
Yes. Radios with a display will beep and display a brief message; so you can hear and see your status
giving you flexibility depending on the operating environment.
For LCD radios, can the ARTS notification message be customized?
Depending on the radio series, the LCD message is pre-set and will either say "IN" or "IN RANGE".
The Owners Manual provides more information about the radio's LCD messages.
How far is my radio communication range?
Your communication range depends on many factors: frequency band, buildings, topography, etc. ARTS provides added
value so you don't have to guess whether you will be able to communicate or whether there is a problem with your radio.
With ARTS activated, you know whether you can communicate.
*ARTS™ is a registered trademark of Vertex Standard.
Radio Lock PasswordShow All Collapse All
How does Radio Lock Password work in a EP450s Display model?
For a Display model, valid password digit includes from '0' to '9'. Numeric keys in the EP450s full keypad are used
to input them. Radio Lock Password must contain 4 digits, valid characters are "1234567890."
How does Radio Lock Password work in a EP450s Non-Display model?
For Non-Display model, rotary position will represent the first digit of the 4 digits password. (Position 1...9 means 1…9,
Position 10 - 16 means 0…6), the rest of the 3 digits shall be inputted by side buttons (2 side buttons means '1' and '2').
Radio Lock Password shall contain 4 digits, valid characters are "1234567890."
TX Inhibit Quick Key OverrideShow All Collapse All
How does Tx Inhibit Quick Key Override work in EP450s by ignoring the
Selected Busy Channel Lockout Rule?
The radio-user accomplishes this by Quick-Keying the PTT button. In other words, pressing the PTT,
then releasing, and then quickly re-pressing.
Lone WorkerShow All Collapse All
How does Lone Worker in the EP450s work?
If configured, the EP450s radio checks if a user, who works alone, loses his operation ability. If the user does
not make any user activities on the radio during specific time period, the radio sends out the emergency
message (via MDC-1200 Signalling) to tell other users about it.