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An Iridium satellite radio is a critical communication tool for a variety of scenarios. While standard mobile
phones require very little preparation and training, satellite-enabled devices may be unfamiliar to users
at first. It is important to ensure your team is familiar with the recommendations of how to best use
two-way satellite radio communications.
Be Prepared Before Talking
• Ensure your PTT device is charged, that you are outside and have clear view to the sky.
• Make sure the device is within the geographic area covered by your Iridium PTT Talk Group.
• Two-way radios are a “one-at-a-time” system; when you press the Push-to-Talk button, no one else in
your group can speak or be heard.
• In order to make the most of your talk session and avoid blocking other speakers
• It is important to think about your message in advance before you press the PTT button.
Identify Yourself and the Recipient of Your Message
There may be a group of intended users all sharing the same PTT Talk Group, so it is important to identify
yourself and your target audience immediately when you initiate a transmission. The talker’s name will
appear on the screen if provided in the Command Center.
Be Patient
The other user(s) in your Talk Group may not be able to respond immediately. Give them time to reply.
Use Short, Clear and Concise Messages
As two-way radios only allow one person to speak at a time, it is best to keep your transmissions clear
and to the point. This gives other users an opportunity to acknowledge your message and/or request
further clarification before continuing on with your next point.
Know How Much Time You Have To Talk
You have a total of 40 seconds to say your message before your session expires.
If your message is longer than the allowed talk time, simply press the push-to-talk button again and share
the rest of your message.
STEP 4:
BASIC OPERATION
Before you begin, you need to ensure that you are outside with clear view to the sky. If
the transceiver is turned on inside, it can enter a searching loop and can fail to connect
when you go outside. If you have any issues connecting with the satellite, power cycle
the device by turning it OFF, wait a few seconds, then turn back ON.
Turn ON the Transceiver
• Rotate the VOL knob to turn ON - ensure you are outside with clear view to the sky.
• The transceiver will search for a satellite begin the registration process “Waiting for
Registration...” shown on the screen.
• Once registered, the status “IDLE” will be shown on the screen, including the device
name “Wombat” and the Talk Group name “WORKING” (names are examples only)
• Rotate Talk Group selector to select desired Talk Group
• When “OPEN” is displayed on the screen, the chosen Talk Group is active but no one
is talking. THE DEVICE IS NOW READY TO TRANSMIT OR RECEIVE
NOTE:
• Push Last Call to play back the last received call
• Push UP or DOWN to display the Talk Group List
Waiting for Registration IDLE OPEN
