Yaesu FT-25R User manual

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144 MHz
FM TRANSCEIVER
FT-25R
FT-25E
Advance Manual

2FT-25R/FT-25E Advance Manual
Contents
About this manual ........................................................4
RF Squelch....................................................................5
Checking the Battery Voltage......................................6
VOX Operation (with earpiece mic or Internal /
External mic).................................................................7
VFO Split Mode.............................................................8
Using the Squelch Feature ..........................................9
Selecting the Squelch Type..........................................9
Setting CTCSS Tone frequency .................................10
Setting DCS CODE number....................................... 11
CTCSS/DCS/PAGER/ARTS Bell Operation.............. 11
EPCS (Enhanced Paging & Code Squelch)...............12
Storing the CTCSS Tone Pairs for EPCS Operation 12
Activating the Enhanced Paging & Code Squelch
System .....................................................................13
Paging Answer Back ................................................14
Memory Bank Operation............................................15
Assigning Memories to a Memory Bank...................15
Memory Bank Recall ................................................15
Removing a Memory channel from a Memory Bank 16
Returning To Memory mode from Memory Bank
operation ..................................................................16
Memory Only Mode ....................................................17
Scanning .....................................................................18
Memory scanning.......................................................18
How to Skip (Omit) a Channel during Memory Scan
Operation .................................................................18
Weather Alert Scan ....................................................19
Programmable (Band Limit) Memory Scan (PMS).....20
“Priority Channel” Scanning .......................................21
VFO Priority..............................................................21
Memory Channel Priority..........................................21

3FT-25R/FT-25E Advance Manual
HOME Channel Priority............................................22
Priority Revert Mode ................................................22
WX Channel Priority.................................................22
Automatic Lamp Illumination on Scan Stop................23
Emergency Channel Operation.................................24
ARTS (Automatic Range Transponder System) ......25
Basic ARTS Setup and Operation..............................25
ARTS Alert Beep Options.........................................26
ARTS Polling Time Options......................................26
CW Identifier Setup..................................................27
DTMF Operation..........................................................28
DTMF Autodialer ......................................................28
Manual DTMF Tone Generation...............................28
Sending the DTMF code by Autodialer ....................29
Miscellaneous Settings..............................................30
Password....................................................................30
Setting Password and Turning the Password Feature
ON or OFF ...............................................................30
Changing the Channel Steps .....................................30
TX Battery Saver........................................................31
Disabling the TX/BUSY LED Indicator .......................31
Automatic Power-Off (APO) Feature..........................32
Transmitter Time-Out Timer (TOT).............................32
Busy Channel Lock-Out (BCLO) ................................33
Changing the TX deviation Level ...............................33
Voice Compander Feature .........................................34
Inversion Scramble (Asian version only)....................34
Cloning ........................................................................35
Set (Menu) Mode.........................................................36

FT-25R/FT-25E Advance Manual 4
About this manual
This manual provides information to assist in using the many FT-25R/E useful
and convenient features.
Refer to this Advance Manual along with the Operating Manual.
This manual contains symbols and conventions to call attention to important in-
formation.
Symbols Description
This icon indicates cautions and alerts the user should be aware of.
This icon indicates helpful notes, tips and information.
This icon indicates other pages containing relevant information.
• The settings of the transceiver at the time of purchase are referred to as the “default”
or “default setting”.
• The names of Set Mode items that are displayed on the LCD, and the transceiver
key names, are presented in bold characters in this manual.

FT-25R/FT-25E Advance Manual 5
RF Squelch
A special RF Squelch feature may be set so that only signals exceeding a certain S-meter
level will open the squelch.
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item
“26 RF SQL”.
3. Press the Fkey to enable adjustment of this item.
4. Press the [▲] or [▼] key to select the desired signal strength level for the squelch
threshold (S-1, S-2, S-3, S-4, S-5, S-6, S-8, S-FULL, or OFF).
5. Press the PTT switch to save the new setting and return to normal operation.

FT-25R/FT-25E Advance Manual 6
Checking the Battery Voltage
The FT-25R/E microprocessor includes programming which will measure the current
battery voltage.
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item
“10 DC VOLT”.
3. Press the Fkey to display the current DC Voltage.
4. Press the PTT switch to return to normal operation.
Also on turning the transceiver ON, the current battery voltage appears
briey.

FT-25R/FT-25E Advance Manual 7
VOX Operation (with earpiece mic or Internal / External mic)
The VOX system provides automatic transmit/receive switching based on voice input to a
VOX compatible headset or internal/external microphone. With the VOX system enabled,
you do not need to press the PTT switch in order to transmit.
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item
“35 VOX”.
3. Press the Fkey to enable adjustment of this item.
4. Press the [▲] or [▼] key to select “VOX ON” or “VOX OFF (default setting)”.
5. Press the PTT switch to save the new setting and return to normal operation.
When the VOX system is activated, the “ ” icon will appear on the display.

FT-25R/FT-25E Advance Manual 8
VFO Split Mode
When working on repeaters with odd splits, or communicating with astronauts on orbiting
space vehicles, it may be necessary to use nonstandard splits between the receive and
transmit frequencies. If the application is infrequent enough not to warrant the dedication
of a memory channel for this purpose, the “VFO Split” mode may be used. Here is the
procedure for going Split:
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “34 VFO.SPL”.
3. Press the Fkey to enable adjustment of this Item.
4. Press the [▲] or [▼] key to select “VSP.ON”.
5. Press the PTT switch to save the new setting and
return to normal operation.
6. Press the [#VFO] key twice, as needed, to select VFO-A.
7. Set VFO-A for the desired receiving (downlink) frequency (e.g.145.800 MHz).
8. Press the [#VFO] key to set VFO-B for desired transmit (uplink) frequency (e.g.
144.475 MHz).
9. Press the [#VFO] key to re-establish VFO-A as the “Main” (receive) VFO.
The transceiver will now be operating in the Split mode.
10. When the PTT switch is pressed to transmit, VFO-A and VFO-B will reverse positions.
To modify the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just
press the [#VFO] key, make the necessary change, and then press the [#VFO] key
once more to restore VFO-A to the “receive VFO” position.

FT-25R/FT-25E Advance Manual 9
Using the Squelch Feature
Many repeater systems require a very-low-frequency audio tone be superimposed on
the FM carrier in order to activate the repeater. This helps prevent false activation of the
repeater by radar or spurious signals from other transmitters. This tone system, called
“CTCSS” (Continuous Tone Coded Squelch System), is included in the FT-25R/E. The
CTCSS is very easy to activate.
Selecting the Squelch Type
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “29 SQL TYPE”.
3. Press the Fkey to enable adjustment of this Item.
4. Press the [▲] or [▼] key to select one of the modes
described below.
Display Description
OFF (default
setting) Disables transmit / receive tone squelch function. -
R-TONE Enables receive only tone squelch function (the icon
appears on the LCD display). -
T-TONE Enables transmit only tone squelch function (the icon
appears on the LCD display). -
TSQL
Enables the tone squelch transmit and receive function (the
icon appears on the LCD display).
Mutes the FT-25R/E receiver until it receives a call from
another transceiver sent with a matching CTCSS tone.
-
REV TN
Enables the reverse tone squelch function (the blinking
icon appears on the LCD display).
Use to monitor communications based on the squelch control
system in which a received signal containing the selected tone
will be muted, and signals not containing the selected tone will
be heard.
-
DCS
Enables the digital code squelch function (the icon
appears on the LCD display).
Sends a DCS code signal when transmitting, and waits for a
DCS code when receiving.
11
PAGER
Enables the pager function (the
v
icon appears on the
LCD display).
When communicating via transceivers with your friends,
specify personal codes (each code is composed of two tones)
so that you can call only specic stations.
12
5. Press the PTT switch to save the new setting and return to normal operation.

10
Using the Squelch Feature
FT-25R/FT-25E Advance Manual
Setting CTCSS Tone frequency
The tone frequency can be selected from 50 frequencies (67.0 Hz to 254.1 Hz).
1. Press and hold the Fkey to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “8 CTCSS”
3. Press the Fkey to enable adjustment of this item.
4. Press the [▲] or [▼] key to select the “TX” or “RX”, then press the Fkey.
Display Description
TX To set the tone frequency on transmitting.
RX To set the tone frequency on receiving.
5. Press the [▲] or [▼] key until the needed Tone Frequency is displayed. (Obtain the
correct tone from the repeater owner/operator if you don’t know it).
CTCSS TONE FREQUENCY (Hz)
67.0 69.3 71.9 74.4 77.0 79.7
82.5 85.4 88.5 91.5 94.8 97.4
100.0 103.5 107.2 110.9 114.8 118.8
123.0 127.3 131.8 136.5 141.3 146.2
151.4 156.7 159.8 162.2 165.5 167.9
171.3 173.8 177.3 179.9 183.5 186.2
189.9 192.8 196.6 199.5 203.5 206.5
210.7 218.1 225.7 229.1 233.6 241.8
250.3 254.1 – – – –
6. When you have made your selection, press the F key to save the desired tone fre-
quency.
7. Press and hold the Fkey to move the upper menu contents in the Set Mode.
8. Press the PTT switch to exit to normal operation.