Micom 3f, Руководство пользователя

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MICOM-3F/3T/3R HF-SSB Owner’s Guide
108
Operating Instructions
Switching to the GPS Display
Note You cannot switch to the GPS display if you are using the ALE mode.
1. Select the GPS item by scrolling with the MORE key on the FREQ or CH menu, and then
pressing F2. You will see a message that indicates the current display format, GPS LLA or GPS
ECEF.
2. If necessary, switch to the alternate display format: press MORE as required to see FRMT , and
then press the key next to FRMT (F4).
3. If the GPS receiver operates normally and is ready, you will see the information selected the last
time the receiver has been used.
Selecting what to Display
1. Press the key next to the type of information you want to see: use Figure 11 to find the key.
2. The displayed information appears on the display and is automatically updated every second.
The time is updated every 5 seconds.
3. To change the display of GPS information, scroll to the desired item.
4. To cancel the display of GPS information, select any other menu except GPS.
Sending Your Position/GPS Position Requests
You can use the ALE AMD service to:
1. Send your position to any another destination (including one-to-many).
2. Request the position of another MICOM-3 transceiver equipped with the optional GPS
receiver. You can make this type of request only when you call an individual station:
•
If the request is made in the CALL mode (that is, before a link has been set up between
the two stations), a link will be set up and then the other station will automatically return
an AMD message with its latitude and longitude.
•
If the request is made while in the LINK mode, the other station displays WHERE ARE
YOU? . In this case, the operator can manually send its position as explained below.
Note that the operations described above automatically set up a link between the two stations and
therefore it is necessary to disconnect the link when it is no longer needed. For this purpose, it is
recommended to enable HOME acknowledge, and/or enable the PTT time-out function.
Note AMD messages with the GPS position do not enter the stack (the information such
message carries is good only at the time you got it): if you do not read the message
in time, you can no longer retrieve the message at a later time.
Thus, you must allow sufficient time for the destination station to read the position
message before when link is disconnected. This is particularly important when
HOME acknowledge is enabled: the message will disappear as soon as you
disconnect the link.