Yaesu FT-991A User manual

HF/VHF/UHF All Mode TrAnsceiVer

c4FM/FM

FT-991

insTrUcTion MAnUAl

(GM Edition)

Thank you for purchasing this Yaeau product.

This instruction manual explains operations and settings associated with the “GM

Function” .

For information on basic operation of the transceiver, please refer to the FT-991A

Operating Manual.

Page 2 FT-991 InsTrucTIon Manual (GM EdITIon)

InTroducTIon

Table of ConTenTs

Using the GM Function ............................................... 3

What is the GM Function? ........................................ 3

Basic Methods to Use the GM Function ................... 4

Displaying all the Stations where the GM Function

is in Operation........................................................ 4

Entering the Location Information Manually............ 5

Set-up Menu for the GM Function............................. 6

Set-up Menu List for the GM Function..................... 6

Using the Menu for the GM Function ....................... 6

Specic ID Display by Transceiver ....................... 6

Switching the Information of the Other Stations ... 7

Setting the Distance Unit ....................................... 8

Page 3

FT-991 InsTrucTIon Manual (GM EdITIon)

WhaT is The GM funCTion?

The GM (group monitor) function monitors the set frequency to nd if there are any stations operating with the GM

function within communication range.

The FT-991A can then display the position, distance and other information for each member call sign on the screen.

Besides identifying GM stations that are within the sphere of communications, the GM function is also a convenient

method to instantly note the relative positions of all the members.

:64:)&+&













*,  #,  









*, 





4,  







-, 





(, 





,, 

 The call sign, the distance and the direction of up to

24 stations operating with the GM function ON, and

that are within the communication range, may be

tracked.

 When DG-ID is set to “00”, all received C4FM digi-

tal information will be displayed.

When the DG-ID is set to other than “00”, only

digital information on C4FM signals containing the

same DG-ID is displayed.

noTe:

To utilize the GM function, all members must operate

on the same frequency.

adviCe:

The GM function does not work in the analog FM mode.

usInG ThE GM FuncTIon

Page 4

usInG ThE GM FuncTIon

FT-991 InsTrucTIon Manual (GM EdITIon)

basiC MeThods To use The GM funCTion

Displaying all the Stations where the GM Function is in Operation

1. Press the MODE button, and then touch the corre-

sponding C4FM key on the LCD to set the operating

mode. The “C4FM” icon appears in the display.

2. Set the desired operating frequency.

3. Press the F(M-LIST) button, then touch [GM]on the

LCD.

Up to 24 stations operating with the GM function

within the sphere of communications will be listed

on the TFT display.

The call sign and position and distance of stations

operating in the DN mode with the GM function in

operation that are within communications range, will

be displayed.

adviCe:

Stations within the sphere of communications are

displayed in blue.

Stations outside the sphere of communications

are displayed in grey.

 The display may be switched to show either the

distance and direction information, or the signal

strength information. See page 7.

noTe:

The distance and direction information are displayed

only when the locations of this station and the other

stations have been registered to the transceivers

memories. For details on how to register the location

information, see page 5.

MODE Button F(M-LIST) Button

4. Touch [BACK] on the LCD. The GM function will

be turned off and the display will return to the previ-

ous screen.

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











*,  3, 

Page 5

usInG ThE GM FuncTIon

FT-991 InsTrucTIon Manual (GM EdITIon)

enTerinG The loCaTion inforMaTion Manually

1. Press and hold the MENU(SETUP) button.

2. Touch [LAT/LON] on the LCD.

3. Touch [LAT] on the LCD.

4. Enter the latitude, then touch [ENT] followed by

[BACK].

5. Touch [LON] on the LCD.

6. Enter the longitude, then touch [ENT] followed by

[BACK].

7. Press the MENU(SETUP) button to exit to normal

operation.

MENU(SETUP)Button

Page 6 FT-991 InsTrucTIon Manual (GM EdITIon)

seT-up Menu lisT for The GM funCTion

No. Menu Function Available Settings Default Value

087 RADIO ID Displays the unique transceiver ID

(The ID is exclusive to each transceiver and cannot be changed.) *****

088 GM DISPLY DISTANCE/STRENGTH DISTANCE

089 DISTANCE km/mile mile

usinG The Menu for The GM funCTion

Specic ID Display by Transceiver

You can check the unique ID (5-digit number) assigned to each transceiver when it was rst shipped from the factory.

The ID cannot be changed.

adviCe:

The ID is a code to identify transceivers that support the GM function. It is sent separately from the call sign during

digital communication.

sET-up MEnu For ThE GM FuncTIon

1. Press the MENU(SETUP) button to enter the Menu

mode.

2. Rotate the MULTI knob to select Menu item “087

RADIO ID”.

A 5-digit radio ID will be displayed in the setting

eld of menu item [087 RADIO ID].

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4#&+1 &+



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









MULTI Knob

MENU Button

Page 7

sET-up MEnu For ThE GM FuncTIon

FT-991 InsTrucTIon Manual (GM EdITIon)

usinG The Menu for The GM funCTion

Switching the Information of the Other Stations

The information received from other stations that is displayed on the screen can be toggled between “distance and direc-

tion” and “signal strength”.

1. Press the MENU(SETUP) button to enter the Menu

mode.

2. Rotate the MULTI knob to select Menu item “088

GM DISPLAY”.

3. Touch [SELECT] on the LCD, then rotate the

MULTI knob to select the information of partner sta-

tions that you would like to be displayed.

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







4. Touch [ENTER] on the LCD, then touch [BACK]

on the LCD or press the MENU button to save the

new setting and exit to normal operation.

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







“Distance and Direction” display

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











*,  3, 

“Signal strength” display









*,  3, 

:64:)&+&



MULTI Knob

MENU Button

Page 8

sET-up MEnu For ThE GM FuncTIon

FT-991 InsTrucTIon Manual (GM EdITIon)

usinG The Menu for The GM funCTion

Setting the Distance Unit

When displaying the distance between your station and the other stations, the distance unit can be set to “km” or “mile”.

1. Press the MENU(SETUP) button to enter the Menu

mode.

2. Rotate the MULTI knob to select Menu item “089

DISTANCE”.

3. Touch [SELECT] on the LCD, then rotate the

MULTI knob to select the distance unit that you

would like to be displayed.

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&+56#0 '% O

)/ &+ 25.#; &+56#0%'

NG









4. Touch [ENTER] on the LCD, then touch [BACK]

on the LCD or press the MENU button to save the

new setting and exit to normal operation.

#/56: /&'161

&+56#0 '% M

)/ &+ 25.#; &+56#0%'











MULTI Knob

MENU Button

YAESU MUSEN CO., LTD.

No portion of this manual may be

reproduced without the permission of

YAESU MUSEN CO., LTD. 1710-B

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