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Yaesu FT-252 Operating Manual
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Yaesu FT-252 Operating Manual

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VHF FM TRANSCEIVER
FT-252
O
M
perating
anual
YAESU MUSEN CO., LTD.
Tennozu Parkside Building
2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan
YAESU USA
6125 Phyllis Drive, Cypress, CA 90630, U.S.A.
YAESU UK
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
YAESU HK
Unit 2002, 20/F, 9 Chong Yip Street,
Kwun Tong, Kowloon, Hong Kong

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  • Page 1 VHF FM TRANSCEIVER FT-252 perating anual YAESU MUSEN CO., LTD. Tennozu Parkside Building 2-5-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-0002 Japan YAESU USA 6125 Phyllis Drive, Cypress, CA 90630, U.S.A. YAESU UK Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K.

  • Page 2: Table Of Contents

    Contents General Description ...........1 Scanning ............29 Accessories & Options ........2 VFO Scanning ..........30 Controls & Connections ........3 Manual VFO Scan ........30 Top & Front Panel ...........3 Programmed VFO Scan ......30 LCD ..............4 Memory Scanning ..........31 Installation of Accessories .........5 How to Skip (Omit) a Channel Antenna Installation .........5 during Memory Scan Operation ....31 Installation of FNB-124LI Battery Pack..5...

  • Page 3: General Description

    S-Meter, thus reducing guesswork in setting the squelch threshold. We appreciate your purchase of the FT-252 , and encourage you to read this manual Thoroughly. You will learn about the many exciting features of your exciting new YAE- SU hand-held transceiver! * IPX5 water submersible.

  • Page 4: Accessories & Options

    YAESU accessories. Consult your YAESU dealer for details regarding these and any newly-available options.

  • Page 5: Controls & Connections

    LCD (Liquid Crystal Display)  The display shows the current operating conditions, as described on the next page. Keypad  These 9 keys select many of most important operating features on the FT-252 .  The internal microphone is located here. ...
  • Page 6 Priority Channel Memory Bank Active Operating Frequency Automatic Power-Off Active BUSY Indicator Battery Indicator TX Indicator Low TX Power Selected Battery Saver Active Secondary Keypad Active Dual Watch Active DTMF Autodial Active S- & PO Meter FT-252 O peraTing anual...

  • Page 7: Installation Of Accessories

    Installation of FNB-124LI Battery Pack The FNB-124LI is a high performance Li-ion battery providing high capacity in a compact package. Recharging can be completed while the pack is installed inside the FT-252 . Installation of the battery is easy and quick: ...

  • Page 8: Battery Charging

    ” icon will appear on the display. When the “ ” icon appears, it is recommended that you charge the battery soon. No Icon: Sufficient Operating Battery Power : Lower Battery Power (Blinking): Prepare to charge (or replace) the Battery FT-252 O peraTing anual...

  • Page 9: Belt Clip Installation / Removal

    Battery compartment, then transceiver to unlock the Belt Clip, press the Belt Clip downward until it then slide the Belt Clip up-ward to re- locks in place with a “Click”. move it. Belt Clip Tab FT-252 O peraTing anual...

  • Page 10: Operation

    (subaudible) CTCSS tone. If your friends have radios equipped with DCS (Digital Coded Squelch) like your FT-252, you may try using that mode for silent monitoring of busy channels.

  • Page 11: Frequency Navigation

    1 ) Tuning Dial Rotation of the DIAL allows tuning in the pre-programmed steps established for the op- erating band. Clockwise rotation of the DIAL causes the FT-252 to be tuned upward in frequency, while counter-clockwise rotation will lower the operating frequency.

  • Page 12: Transmission

    Once you have set up an appropriate frequency inside the 144 MHz Amateur band on which the FT-252 can transmit, you’re ready to go on the air! These are the most basic steps; more advanced aspects of transmitter operation will be discussed later.

  • Page 13: Advanced Operation

    To cancel locking press the [ POWER ( )] key momentarily again. In order to prevent accidental frequency change or inadvertent transmission, various aspects of the FT-252 ’s DIAL and keypad may be locked out. You may change the lock- out combinations.

  • Page 14: Lcd Illumination

    Advanced Operation LCD Illumination Your FT-252 includes a reddish illumination lamp which aids in nighttime operation. The reddish illumination yields clear viewing of the display in a dark environment, with minimal degradation of your night vision. Three options for activating the lamp are provided:...

  • Page 15: Rf Squelch

    5. Press the PTT switch to save the new setting and return to normal operation. Checking the Battery Voltage The FT-252 includes feature which will display the current battery voltage. 1. Press the [ SET/ATS ] key to enter the Set mode.

  • Page 16: Repeater Operation

    The FT-252 includes a number of features which make repeater operation simple and enjoyable. Repeater Shifts The FT-252 has been configured, at the factory, with the repeater shift set to 600 kHz. Depending on the part of the band in which you are operating, the re- peater shift may be either downward (–) or upward (+), and one of these...

  • Page 17: Manual Repeater Shift Activation

    If you have only one “odd” split that you need to program, don’t change the “default” repeater shifts using this Set Mode Item. Instead, enter the transmit and receive fre- quencies separately, as shown on page 22. FT-252 O peraTing anual...
  • Page 18 “HOME” (for instant switching to the “Home” channel for the band you are operating on). To change the configuration of this key, use Set Mode Item 30: REV/HM. See page 59. FT-252 O peraTing anual...

  • Page 19: Ctcss/Dcs Operation

    Tone Squelch system is ac- tive and will mute the FT-252 receiver until it receives a call from another radio that is sending a matching CTCSS tone. This can help keep your radio quiet until a spe- cific call is received;...

  • Page 20: Dcs Operation

    CTCSS to control access to the repeater, but don’t pass it along when transmitting. If the S-Meter deflects, but the FT-252 is not passing audio, repeat steps “1” through “4” above, but rotate the DIAL so that “TSQ” disappears - this will allow you to hear all traffic on the channel being utilized.

  • Page 21: Ctcss/Dcs Bell Operation

    DCS off when you’re just tuning around the band! CTCSS/DCS Bell Operation During CTCSS Decode or DCS operation, you may set up the FT-252 such that a ring- ing “bell” sound alerts you to the fact that a call is coming in. Here is the procedure for activating the CTCSS/DCS Bell: 1.

  • Page 22: Split Tone Operation

    CTCSS/DCS Operation Split Tone Operation The FT-252 can be operated in a Split Tone configuration via the Set mode. 1. Press the [ SET/ATS ] key to enter the Set mode. 2. Rotate the DIAL knob or press the [ p ] / [ q ] key to select...

  • Page 23: Tone Calling (1750 Hz)

    The transmitter will automatically be activated, and a 1750-Hz audio tone will be superimposed on the carrier. Once access to the repeater has been gained, you may release the [ VOL/SQL ] key for activating the transmitter thereafter. FT-252 O peraTing anual...

  • Page 24: Memory Mode

    Memory Mode The FT-252 provides a wide variety of memory system resources. These include:  200 “Standard” memory channels, numbered “ ” through “ .”  A “Home” channel, providing storage and quick recall of one prime frequency.  10 sets of band-edge memories, also known as “Programmable Memory Scan” chan- nels, labeled “...

  • Page 25: Memory Recall

    (if any) will now be stored in the special HOME channel register. 5. To recall the HOME channel, press the [ REV ] key mo- mentarily while operating either in the VFO or MR mode. FT-252 O peraTing anual...

  • Page 26: Labeling Memories

    2. Rotate the DIAL knob or press the [ p ] / [ q ] key to select Set Mode Item 25: NAME 3. Press the [ SET/ATS ] key momentarily to enable adjust- ment of this Item. FT-252 O peraTing anual...

  • Page 27: Memory Offset Tuning

    FREQ 2) Direct Setting: 1. Set the FT-252 to the “MR” (Memory Recall) mode, and recall the memory channel on which you wish to enable the alpha-numeric Tag. 2. Press and hold the [ F/MW ] key for one second.

  • Page 28: Deleting Memories

    Important Notice! Once deleted, the channel data cannot be recovered! Memory Bank Operation The large number of memories available in the FT-252 could be difficult to utilize without some means of organizing them. Fortunately, the FT-252 includes provision for dividing the memories into as many as ten Memory Groups, so you can categorize the memories in a manner convenient to you.

  • Page 29: Moving Memory Data To The Vfo

    2. Press and hold in the [ V/M ] key while turning the radio on. 3. Rotate the DIAL knob to select the “ ” option, F5 M-ONLY then press the [ SET/ATS ] key. To return to normal operation, repeat the above power-on pro- cedure. FT-252 O peraTing anual...

  • Page 30: Weather Broadcast Channels

    NOAA (National Oceanic and Atmospheric Administration) sends a weather alert accompanied by a 1050 Hz tone and subsequent weather report on one of the NOAA weather channels. See page 38 for details regarding activation of this mode. FT-252 O peraTing anual...

  • Page 31: Scanning

    PerAtion The FT-252 allows adjustment of the Squelch level “on the fly” while you are scanning. 1. While the scanner is engaged, press the [ VOL/SQL ] key twice (the current squelch level (e.g. “ ”) will appear in fine print above the frequency display).

  • Page 32: Vfo Scanning

    7. To cancel scanning, press the PTT switch. When you start the Programmed VFO Scanner, the FT-252 will be changing fre- quency in the upward direction. If you want to change direction of the scan while it is underway, rotate the DIAL knob one click in the opposite direction (in this case, one click counter-clockwise).

  • Page 33: Memory Scanning

    5 above (the “Skipped” channel will, of course, still be accessible via manual channel selection methods using the DIAL knob in the MR mode, whether or not it is locked out of the scanning loop). FT-252 O peraTing anual...

  • Page 34: Preferential Memory Scan

    Memory Scanning Preferential Memory Scan The FT-252 also allows you to set up a “Preferential Scan List” of channels which you can “flag” within the memory system. These channels are designated by a blinking “  ” icon when you have selected them, one by one, for the Preferential Scan List.

  • Page 35: Memory Bank Scan

    5. Now, press and hold in the [ p ] or [ q ] key for one second to initiate the Memory Bank Link Scan. 6. To remove a Memory Bank from the Memory Bank Link Scan, repeat steps 2 and 3 above, to delete the “decimal point” from the Memory Bank number indication. FT-252 O peraTing anual...

  • Page 36: Programmable ( Band Limit ) Memory Scan ( Pms )

    Limit) Memory Scan. Scanning will now be limited within the just-programmed range. 6. 10 pairs of Band Limit memories, labeled L1/U1 through L10/U10 are available. You therefore can set upper and lower operation limits in multiple segments on the band, if you like. FT-252 O peraTing anual...

  • Page 37: Priority Channel" Scanning (Dual Watch)

    4. Press [ F/MW ]  [ VOL/SQL ] again to disable the Memory Priority mode. When the Memory Bank feature is activated, the FT-252 will check the lowest num- bered memory channel in the current Memory Bank as the Priority Channel.

  • Page 38: Priority Revert Mode

    5. When you have made your selection, press the PTT switch to save the setting and exit to normal operation. 6. To disable the Priority Revert operation, just repeat the above procedure, rotat- ing the DIAL knob to select “ ” in step 4 above. RVT.OFF FT-252 O peraTing anual...

  • Page 39: Automatic Lamp Illumination On Scan Stop

    Band Edge Beeper The FT-252 will automatically “beep” when a band edge is encountered during scan- ning (either in standard VFO scanning or during PMS operation). You may also enable this feature (band edge beeper) to operate when the frequency reaches the band edge while tuning using the DIAL knob.

  • Page 40: Weather Alert Scan

    NOAA Alert Tone while operating using VFO scan or Memory channel scan. When the Weather Alert Scan feature is engaged, the FT-252 will check the Weather Broadcast Memory Channels for activity every five seconds while scanning. If you watch the display carefully, you’ll observe the scanner periodically shifting to the...

  • Page 41: Emergency Channel Operation

    Emergency Channel Operation The FT-252 includes an “Emergency” feature which may be useful if you have some- one monitoring on the same frequency as your transceiver’s “Home” channel. See page 23 for details on setting up the Home channel. The “Emergency” feature is activated by pressing and holding in the [ SET/ATS ] key for one second.

  • Page 42: Smart Search Operation

    .” 5. To recall the Smart Search memories, rotate the DIAL knob to choose from among the frequencies stored by Smart Search. 6. To return to normal operation, press the [ VFO ( PRI )] key. FT-252 O peraTing anual...

  • Page 43: Ats (Automatic Transponder System)

    ATS constitutes a form of “remote control” operation that may be restricted to certain frequencies. U.S. users should confirm the current status of §97.201(b) of the FCC’s rules governing the 144 MHz band of the Amateur service before utilizing this fea- ture. FT-252 O peraTing anual...
  • Page 44 4. Rotate the DIAL knob or press the [ p ] / [ q ] key to select the desired ATS Beep mode (see above). 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. FT-252 O peraTing anual...

  • Page 45: Dtmf Operation

    12. If you store other numbers, repeat steps 4- 10 above, using a different DTMF memo- ry register. 13. When all required DTMF memories are filled to your satisfaction, press the PTT switch to save the settings and exit to normal operation. FT-252 O peraTing anual...
  • Page 46 . See page 56 for details. DT DLY When you activate the ANI (Automatic Number Identification) feature during DTMF operation, the DTMF tones stored in ANI memory will automatically be sent whenever you press the PTT switch. FT-252 O peraTing anual...
  • Page 47 6. Press the PTT switch to send the DTMF tones stored in ANI memory. 7. To disable the ANI feature, just repeat the above procedure, rotating the DIAL knob or press the [ p ] / [ q ] key to select “ ” in step 4 above. FT-252 O peraTing anual...

  • Page 48: Miscellaneous Settings

    11. Press the [ SET/ATS ] key momentarily, then rotate the DIAL knob to set this Item to “ ” (to enable the CW TX ON ID function). 12. Press the PTT switch to save the settings and exit to normal operation. FT-252 O peraTing anual...

  • Page 49: Password

    If you forget the password, you number, you may turn on the transceiver by perform- ing the “All Reset” procedure (see page 52). However, the FT-252 will clear the pass- word, as well as all memories, and will restore all other settings to factory defaults.

  • Page 50: Changing The Channel Steps

    (“AUTO”), any number of which may be important to your operating requirements. The FT-252 is set up at the factory in the “AUTO” con- figuration, which probably is satisfactory for most operation. However, if you need to change the channel step increments, the procedure to do so is very easy.

  • Page 51: Tx Battery Saver

    Miscellaneous Settings TX Battery Saver The FT-252 also includes a useful Transmit Battery Saver, which will automatically lower the power output level when the last signal received was very strong. For ex- ample, when you are in the immediate vicinity of a repeater station, there generally is no reason to use the High Power output in order to achieve full-quieting access to the repeater.

  • Page 52: Busy Channel Lock-Out (Bclo)

    Small signal or power amplifiers having an odd number (1, 3, 5, etc.) of amplification stages may result in inversion of a transmitted or received DCS code. While under most circumstances this should not occur (amplifier designs and industry FT-252 O peraTing anual...

  • Page 53: Changing The Tx Deviation Level

    In such operating environments, it often is required that operators use reduced deviation levels, to reduce the potential for interference to users on adjacent channels. The FT-252 includes a simple method of accomplishing this: 1. Press the [ SET/ATS ] key to enter the Set mode.

  • Page 54: Reset Procedures

    4. Press the [ SET/ATS ] key momentarily to complete the reset procedure. The “F5” option is used for setting up the “Memory Only” mode. See page 27 for de- tails regarding the memory Only mode. FT-252 O peraTing anual...

  • Page 55: Set Mode

    Set ( Menu ) Mode The FT-252 Set Mode, already described in parts of many previous chapters, is easy to activate and set. It may be used for configuration of a wide variety of transceiver param- eters, some of which have not been detailed previously. Use the following procedure to activate the Set Mode: 1.
  • Page 56 SAV.OFF / SAV. ON 45 [ WID.NAR ] Select Wide (±5 kHz) or Narrow (±2.5 kHz) TX Deviation. WIDE / NARROW 46 [ WX ALT ] Enables/Disables the Weather Alert Scan feature. ALT.OFF / ALT. ON FT-252 O peraTing anual...
  • Page 57 Function: Enables/Disables the beeper. Available Values: KEY+SC/KEY/OFF Default: KEY KEY+SC: The beeper sounds when you press any key, or when the scanner stops. KEY: The beeper sounds when you press any key. OFF: Beeper is disabled. FT-252 O peraTing anual...
  • Page 58 627 631 632 654 662 664 703 712 723 731 Default: T/RX N 732 734 743 754 – – – – – – Set Mode Item 15 [ DT DLY ] Function: Setting of the DTMF Autodialer Delay Time. Available Values: 50MS/100MS/250MS/450MS750MS/1000MS Default: 450MS FT-252 O peraTing anual...
  • Page 59 Set Mode Item 11: CWID Set Mode Item 20 [ F STEP ] Function: Setting of the synthesizer steps. Available Values: 5/10/12.5/15/20/25/50/100 kHz, or AUTO Default: AUTO (Step automatically changes according to operating frequency.) FT-252 O peraTing anual...
  • Page 60 Set Mode Item 26 [ PASSWD ] Function: Enables/disables the Password feature. Available Values: PWD.OFF/PWD. ON Default: PWD.OFF Set Mode Item 27 [ PSWD W ] Function: Stores the password. Available entries are 0-9, A, B, C, D, E, and F. FT-252 O peraTing anual...
  • Page 61 Available Values: RVT.OFF/RVT. ON Default: RVT.OFF See page 36 for details. Set Mode Item 34 [ RXSAVE ] Function: Selects the Receive-mode Battery Saver interval (“sleep” ratio) Available Values: 200 MS(1:1)/300 MS(1:1.5)/500 MS(1:2.5)/1 S(1:5)/2 S(1:10)/OFF Default: 200 MS FT-252 O peraTing anual...
  • Page 62 SQL.TYP DCS Encode only. T DCS: Encodes a CTCSS tone and Decodes a DCS code. D TSQL: Encodes a DCS code and Decodes a CTCSS tone. Select the desired operating mode from the selections shown above. FT-252 O peraTing anual...
  • Page 63 Function: Select Wide (±5 kHz) or Narrow (±2.5 kHz) TX Deviation. Available Values: WIDE/NARROW Default: WIDE Note: If “Narrow” is selected, the receiver audio level is increased slightly to compen- sate for the reduced deviation. The receiver IF filter bandwidth is not changed via this setting. FT-252 O peraTing anual...
  • Page 64 Set ( Menu ) Mode Set Mode Item 46 [ WX ALT ] Function: Enables/Disables the Weather Alert Scan feature. Available Values: ALT.OFF/ALT. ON Default: ALT. OFF FT-252 O peraTing anual...

  • Page 65: Specifications

    800 mW @ 16  for 10 % THD (@ 7.4 V) (Internal Speaker) Specifications are subject to change without notice, and are guaranteed within the 144 MHz amateur band only. Frequency ranges and functions will vary according to transceiver version; check with your dealer. FT-252 O peraTing anual...
  • Page 66 Note FT-252 O peraTing anual...
  • Page 67 1. Changes or modifications to this device not expressly approved by YAESU MUSEN could void the user’s authorization to operate this device. 2. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference including received, interference that may cause undesired operation. 3. The scanning receiver in this equipment is incapable of tuning, or readily being altered, by the User to operate within the frequency bands allocated to the Domestic public Cellular Telecommunications Service in Part 22. DECLARATION BY MANUFACTURER The Scanner receiver is not a digital scanner and is incapable of being converted or modified to a digital scanner receiver by any user.
  • Page 68 Copyright 2013 YAESU MUSEN CO., LTD. All rights reserved. Printed in Japan No portion of this manual may be reproduced without the permission of YAESU MUSEN CO., LTD. EH053N100...

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