CalAmp GUARDIAN User Manual download pdf (Page 35)

multiple of 1024 results in a Short ID of 0. If the ID Number is within the range of 1 to 1023, the Short ID will be the

same.

Note: This ID is not the same as the printed serial number. Use the printed serial number to verify if the unit is under

warranty.

Short ID

The Short ID is derived from the longer ID Number. It is used to identify units and minimizes the time required to

transmit Online Diagnostics. The Short ID of each unit in a network must be unique if Online or Offline Diagnostics will

be used. Since the Short ID is derived from the ID Number, no entry is allowed in this field. The range of the Short ID is

1 to 1023.

PTT Watchdog

Check to enforce a maximum transmit time or uncheck for unlimited transmit time. This is used to protect against a

“stuck” transmitter. The slider bar lets you adjust the transmit time for PTT watchdog from 0 to 255 seconds.

CWID

Some regulatory agencies require a station identification. The Guardian offers a Morse Code (CW) identifier that will

identify the unit on the first transmission and at periodic intervals after that. This field is used to set the Station ID

(CWID) or FCC Call Sign for the Guardian Modem.

If enabled, the Guardian will transmit the CWID string as Morse Code at the time interval chosen on the slider. A time

interval between 1 and 255 minutes is available.

Station ID is a combination of letters and numbers and the characters: space, exclamation point (!), Dollar Sign ($ - SX),

Ampersand (& - AS Wait), Apostrophe (‘), parenthesis, plus (+), hyphen (-), comma (,), period (.), slash (/). The CWID

may be up to 13 characters in length.

Info

Displays Guardian firmware and hardware version information.

Diagnostics

Displays Guardian unit diagnostics and health status.

Carrier Sense Multiple Access (CSMA)

The Guardian Modem may be programmed to check for traffic on the RF channel before beginning a transmission if

enabled.

Off: Disables CSMA. Guardian will not check for traffic on RF channel before transmitting.

No Tx on RX Data: Enables CSMA. Guardian will check the RF channel for valid data before transmitting. If valid

data is found, the Guardian will wait until the channel is clear before sending the data.

No Tx on RX Carrier: Enables CSMA. Guardian will check the RF channel for an RF carrier. If carrier is found, the

Guardian will wait until the channel is clear before sending the data.

User Port Configuration

Used to configure the Guardian’s User Port when configured in Modem Mode.

Read File

Read a Guardian Configuration file from the PC into the Guardian Programmer.

Write File

Writes the current configuration to the selected path and filename on the PC.

Guardian™ Serial Modem or Analog Radio for Licensed Spectrum PN 001-5006-000 Rev. 3 | Page 27

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CalAmp GUARDIAN User Manual Page 35