144 MHz
FM TRANSCEIVER
FT-25
FT-25
Advance Manual
R
E
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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
2FT-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
3FT-25R/FT-25E Advance Manual
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.
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FT-25R/FT-25E Advance Manual 4
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
2. Press the [▲] or [▼] key to select Set Mode Item
“26 RF SQL”.
3. Press the F key 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.
F key to enter the Set Mode.
FT-25R/FT-25E Advance Manual 5
Checking the Battery Voltage
The FT-25R/E microprocessor includes programming which will measure the current
battery voltage.
1. Press and hold the
2. Press the [▲] or [▼] key to select Set Mode Item
“10 DC VOLT”.
3. Press the F key 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
briey.
F key to enter the Set Mode.
FT-25R/FT-25E Advance Manual 6
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
2. Press the [▲] or [▼] key to select Set Mode Item
“35 VOX”.
3. Press the F key 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 “
F key to enter the Set Mode.
” icon will appear on the display.
FT-25R/FT-25E Advance Manual 7
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
2. Press the [▲] or [▼] key to select Set Mode Item “34 VFO.SPL”.
3. Press the F key 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.
F key to enter the Set Mode.
FT-25R/FT-25E Advance Manual 8
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 F key to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “29 SQL TYPE”.
3. Press the F key to enable adjustment of this Item.
4. Press the [▲] or [▼] key to select one of the modes
described below.
Display Description
OFF (default
setting)
R-TONE
T-TONE
TSQL
REV TN
DCS
PAGER
5. Press the PTT switch to save the new setting and return to normal operation.
Disables transmit / receive tone squelch function.
Enables receive only tone squelch function (the
appears on the LCD display).
Enables transmit only tone squelch function (the
appears on the LCD display).
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.
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.
Enables the digital code squelch function (the
appears on the LCD display).
Sends a DCS code signal when transmitting, and waits for a
DCS code when receiving.
v
Enables the pager function (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 specic stations.
icon appears on the
icon
icon
icon
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FT-25R/FT-25E Advance Manual 9
Using the Squelch Feature
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 F key to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “8 CTCSS”
3. Press the F key to enable adjustment of this item.
4. Press the [▲] or [▼] key to select the “TX” or “RX”, then press the F key.
Display
To set the tone frequency on transmitting.
TX
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).
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 – – – –
Description
CTCSS TONE FREQUENCY (Hz)
6. When you have made your selection, press the F key to save the desired tone fre-
quency.
7. Press and hold the F key to move the upper menu contents in the Set Mode.
8. Press the PTT switch to exit to normal operation.
FT-25R/FT-25E Advance Manual
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Using the Squelch Feature
Setting DCS CODE number
The DCS code can be selected from 104 types (023 to 754).
1. Press and hold the F key to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “11 DCS CODE”
3. Press the F key to enable adjustment of this item.
4. Press the [▲] or [▼] key to select “TX” or “RX”,
then press the F key.
5. Press the [▲] or [▼] key to select the desired DCS Code (a three digit number).
Ask the repeater owner/operator if you don’t know the DCS Code; if you are working
simplex, just set up the DCS Code to be the same as that used by your friend(s).
DCS CODE
023 025 026 031 032 036 043 047 051 053
054 065 071 072 073 074 114 115 116 122
125 131 132 134 143 145 152 155 156 162
165 172 174 205 212 223 225 226 243 244
245 246 251 252 255 261 263 265 266 271
274 306 311 315 325 331 332 343 346 351
356 364 365 371 411 412 413 423 431 432
445 446 452 454 455 462 464 465 466 503
506 516 523 526 532 546 565 606 612 624
627 631 632 654 662 664 703 712 723 731
732 734 743 754 – – – – – –
6. When you have made your settings, press the F key to save the desired DCS Code.
7. Press and hold the F key to move the upper menu contents in the Set Mode.
8. Press the PTT switch to exit to normal operation.
CTCSS/DCS/PAGER/ARTS Bell Operation
During CTCSS Decode, DCS, PAGER, ARTS operation, you may set up the Transceiver
such that a ringing “bell” sound alerts you to the fact that a call is coming in.
1. Press and hold the F key to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “6 BELL”
3. Press the F key to enable adjustment of this item.
4. Press the [▲] or [▼]key to set the desired number
of Bell rings.
The available choices are “1Time”, “3Times”,
“5Times”, “8Times”, “CONTINUE” (continuous
ringing), or “OFF (default setting)”.
5. Press the PTT switch to save the new setting and return to normal operation.
FT-25R/FT-25E Advance Manual
11
Using the Squelch Feature
EPCS (Enhanced Paging & Code Squelch)
The FT-25R/E includes an Enhanced CTCSS tone encoder/decoder and a dedicated
microprocessor providing paging and selective calling features. The squelch permits
directing calls to specific stations (Paging), and receiving only the calls directed to stations
programmed with a similar code (Code Squelch).
The paging and code squelch systems use two pairs of (alternately switched) CTCSS
tones which are stored in the pager memories. Basically, the receiver remains silent until
it receives the CTCSS tone pair that matches those stored in the Receiver Pager Memory.
The squelch then opens so the caller is heard, and the paging ringer (if activated)
immediately sounds. When the PTT switch is pressed to transmit, the CTCSS tone pair
which is stored in the Transmitting Pager Memory will be transmitted automatically.
On the paged transceiver, the squelch will close automatically after the incoming page
ends. Meanwhile, on the paging transceiver, the Enhanced Paging and Code Squelch
system will be disabled after the PTT switch is released, after the paging transmission.
The Enhanced Paging and Code Squelch system may be re-activated again using Set
Mode Item “21 PAGER”, if desired.
Storing the CTCSS Tone Pairs for EPCS Operation
1. Press and hold the F key to enter the Set Mode.
2. Press the [▲] or [▼] key to select Set Mode Item “21 PAGER”
3. Press the F key to enable adjustment of this item.
4. Press the F key.
The rst TX tone number will blink.
5. Press the numeric keys to input the CTCSS Tone number which corresponds to the
first tone of the CTCSS Tone Pair.
The tone numbers are listed below.
CTCSS TONE NUMBER
No. Hz No. Hz No. Hz No. Hz No. Hz
01 67.0 11 94.8 21 131.8 31 171.3 41 203.5
02 69.3 12 97.4 22 136.5 32 173.8 42 206.5
03 71.9 13 100.0 23 141.3 33 177.3 43 210.7
04 74.4 14 103.5 24 146.2 34 179.9 44 218.1
05 77.0 15 107.2 25 151.4 35 183.5 45 225.7
06 79.7 16 110.9 26 156.7 36 186.2 46 229.1
07 82.5 17 114.8 27 159.8 37 189.9 47 233.6
08 85.4 18 118.8 28 162.2 38 192.8 48 241.8
09 88.5 19 123.0 29 165.5 39 196.6 49 250.3
10 91.5 20 127.3 30 167.9 40 199.5 50 254.1
6. Press the F key to input the second TX tone.
The second TX tone number will blink.
FT-25R/FT-25E Advance Manual
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