Joint Variable Message Format (JVMF)

Question 1

JVMF

Answer 1

JVMF mode provides transmission and display of received Over the Air (OTA) JVMF messages as provided by the Improved Data Modem (IDM)

JVMF mode provides capability to control and manipulate the FMS for keypad entry purposes

Reception rate if up to 16kbs; ethernet cables

Cannot send out more than 16 messages at a time

A listing of URNs (Unique Resource Numbers) that are loaded via the PCMCIA card for every IDM initialization.

Can have 4 UTOs

Question 2

Improved Data Modem

Answer 2

Is initialized upon power up. Take approx 1.5 minutes to boot up. When the inboard MFDs are turned on, they will automatically connect to the IDM

FMS will allow you to log into the JVMF… gives us OVER THE HORIZON communications using the BLUE FORCE TRACKER

3 login attempts

Username and password file is NOT held in the IDM after shutdown. Also does not save your incoming or outgoing messages

(Group message can only be up to 16 receiving units at a time)

Question 3

JVMF controls and functions

Answer 3

All JVMF pages will have similar pages elements, even though each page is designed for its respective purpose

Main menu modes on the RIGHT side

Main menu display in the center

Submenu display to the right of the main menu display (astrix is the selected submenu)

Page Title at the bottom center

JVMF centered below Page Title

Menu nav controls at the top

Auto-reporting - on means your A/C is reporting its position

File Load on the setup page loads data from the PCMCIA card

Question 4

Messaging

Answer 4

Save URN - if someone messages you that is not in your list of a max of 50 saved URNS, you can save it if you have room.

> symbol indicates an unopened message

? Symbol means they want an acknowledgement