Yaesu FT-450 Operation Manual
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Yaesu FT-450 Operation Manual

Hf/50 mhz transceiver
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See also: Reference , Technical Supplement
HF/50 MH
T
Z
RANSCEIVER
FT-450
O
M
PERATION
ANUAL
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
VERTEX STANDARD AUSTRALIA PTY., LTD.
Normanby Business Park, Unit 14/45 Normanby Road
Notting Hill 3168, Victoria, Australia

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JORGE
April 2, 2025

Bom dia. Estou tentando configurar YAESU FT 450 para Digimode ( FT 8 e outros) e recepção está normal, porém ao entrar em TX, o rádio pula frequência. Estou conectando o rádio no modo CAT. Tks, 73

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2 comments:
Mr. Anderson
April 2, 2025

To configure the Yaesu FT-450 for Digimode (such as FT8) without frequency jumping during TX when using CAT control, follow these steps:

1. Use "Packet" Mode: Set the transceiver to "Packet" mode, not "RTTY", because "RTTY" mode on the FT-450 is not AFSK-based. "Packet" mode supports AFSK-based digital modes like FT8.

2. Connect via Data Jack: Connect your interface or TNC to the rear DATA jack of the FT-450. Use the correct pins:
- DATA IN (Pin 1)
- DATA OUT (Pin 2)
- GND

3. CAT Control: Ensure CAT control is properly set up to manage frequency and PTT. Use the CAT port (RS-232 or USB if using a converter).

4. Disable VOX or Set Proper PTT: Use CAT or hardware PTT control instead of VOX to avoid unintended frequency changes.

5. Avoid Frequency Shifts: To prevent frequency jumping during TX:
- Ensure the software (e.g., WSJT-X) is not sending CAT commands that change frequency on TX.
- Set the transceiver to "Split Operation = None" in your digimode software settings unless split is required.
- Use "Fake It" or "Rig" split mode only if needed and properly configured.

6. Menu Settings: Adjust menu settings to match your setup, especially audio levels, data mode options, and PTT control method.

This setup ensures stable frequency during digital mode operation using CAT control.

This answer is automatically generated

0
JORGE
April 2, 2025

@JORGE Config do. software

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Summary of Contents for Yaesu FT-450

  • Page 1 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. YAESU EUROPE B.V. P.O. Box 75525, 1118 ZN Schiphol, The Netherlands YAESU UK LTD. Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K.

  • Page 2: Table Of Contents

    ABLE OF ONTENTS GENERAL FEATURE ........... 1 SSB/AM MODE TRANSMISSION ..... 34 TX METER SELECTION ..........35 FRONT PANEL SWITCHES AND KNOBS ..2 TX POWER ADJUSTMENT ..........35 DISPLAY INDICATIONS ........6 TRANSMITTER TIME-OUT TIMER (TOT) ...... 36 REAR PANEL JACKS .......... 8 MICROPHONE GAIN LEVEL ADJUSTMENT ....

  • Page 3: General Feature

    Super Compact HF Transceiver with IF-DSP ATU (automatic antenna tuner) can be installed in the radio (optional) A perfect performance on HF radio with easy operation is realized only by the FT-450, very small HF transceiver. HF + 50 MHz with 100 Watts output all mode operation Small, compact and light-weight HF radio, 9 (W) x 3.3 (H) x 8.5 (D) in, 7.9 lb...

  • Page 4: Front Panel Switches And Knobs

    CW key or keyer paddles (for the built-in electronic keyer), or output from an external electronic keyer. Pinout is shown below. Key up is 5 volts, and key down cur- rent is 0.5 mA. Page 2 FT-450 O...
  • Page 5 Press this button to activate the alternate key functions of the six command buttons located on the upper right corner of the front panel. Press and hold this button for one second to engage the “Menu” mode. FT-450 O Page 3...
  • Page 6 CW keyer on and off. CLAR Switch Pressing this button activates the Clarifier, to allow temporarily offsetting the receive frequency. When the Clarifier is active, you may offset the receive frequency by adjust- ing the [ MAIN DIAL ] knob. Page 4 FT-450 O...
  • Page 7 Advice: You may select the locking schemes via the Menu Mode. Term Explanation: The Menu Mode permits you to make small changes in the parameters of many of the functions of the FT-450. You can cus- tomize the operations to your personal preferences.
  • Page 8 The null position of the IF Notch Filter is depicted graphically here when the IF Notch Filter is activated. Indicates the Noise Reduction level of the Digital Noise Reducer. Indicates the bandwidth of the DSP IF filter. : Indicates the peak position of the DSP IF filter. Page 6 FT-450 O...

  • Page 9: Display Indications

    : This indicator appears whenever the Clarifier function is activated. : This indicator appears whenever Split-frequency operation is activated. : This indicator appears when the alternate key functions of the six command buttons located on the upper right corner of the front panel is activated. FT-450 O Page 7...

  • Page 10: Rear Panel Jacks

    This 6-pin input/output jack provides receiver audio and squelch sig- Ž DATA PTT  FSK IN nals, and accepts transmit (AFSK) audio and PTT control, from an DATA OUT ‘SQL OUT external packet TNC. (viewed from rear panel) Page 8 FT-450 O...

  • Page 11: Supplied

    The microphone is located pleted. here. Speak into the micro- phone in a normal voice level. The microphone should be po- sitioned within 2 inches (5 cm) from the mouth for optimum performance. FT-450 O Page 9...

  • Page 12: Accessories & Options

    ATAS-120A Solid-State Linear Amplifier/AC Power Supply VL-1000 / VP-1000 Band Data Cable (for VL-1000) CT-118 Desktop Microphone MD-100 DTMF Hand Microphone MH-36 Hand Microphone MH-31 Lightweight Stereo Headphone YH-77STA Mobile Mounting Bracket MMB-90 Carrying Handle MHG-1 Page 10 FT-450 O...

  • Page 13: Installation

    OWER UPPLY The FT-450 is designed for use with any antenna system providing a 50 Ohm resistive impedance at the desired operating frequency. Every effort should be made to ensure the impedance of the antenna system is as close as possible to the specified 50-Ohm value.

  • Page 14: Grounding

    NSTALLATION ROUNDING The FT-450 transceiver, like any other HF communications apparatus, requires an effective ground system for maximum electrical safety and best communications effectiveness. A good ground system can contribute to station efficiency in a number of ways: It can minimize the possibility of electrical shock to the operator.

  • Page 15: Vl-1000 Linear Amplifier Interconnections

    VL-1000 L INEAR MPLIFIER NTERCONNECTION Be sure that both the FT-450 and VL-1000 are turned off, then follow the installation recommendations con- tained in the illustration. Note: Ì Please refer to the VL-1000 Operating Manual for details regarding amplifier operation.
  • Page 16 DSP functions. 8. Rotate the [ MAIN DIAL ] knob to set the desired In this case, press the [ DSP ] button several frequency. times until the “>” icon disappears from the DSP Graphic Display. Page 14 FT-450 O...

  • Page 17: Easy Operation

    5. Press the [ DSP/SEL ] knob to save the selection. The icon appears continuously. 6. Press and hold the [ F ] button for one second to return to normal operation. Menu Item or Menu Setting FT-450 O Page 15...

  • Page 18: How To Use The [ Voice/C.s ] Switch

    Enables adjustment of the display dimmer level by the [ DSP/SEL ] knob. DIMMER Change the meter function in the transmit mode. USER This parameter is for future expansion of the transceiver’s capabilities. Do not select this parameter. Page 16 FT-450 O...

  • Page 19: Key Duration Setting

    11. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 12. Press and hold the [ F ] button for one second to save the new setting and return to normal operation. FT-450 O Page 17...

  • Page 20: Resetting The Microprocessor

    PERATION ESETTING THE ICROPROCESSOR The FT-450 has three reset methods. VFO/M Use this procedure to reset (clear out) the Memory channels (Except the QMB channel) previously stored and VFO data, without affecting any configuration changes you may have made to the Menu settings.

  • Page 21: Receiving

    4. Rotate the [ DSP/SEL ] knob to select the desired tuning step described above. 5. Press the [ DSP/SEL ] knob to save the new set- ting and return to normal operation. [ MODE ] / [ MODE ] button [ F ] button FT-450 O Page 19...

  • Page 22: Of The Optional Mh-31A8J And Md-100A8X

    You may assign the CLAR function to the [ DSP/ the frequency after disabling the clarifier, the clari- SEL ] knob via the Menu Item “CLAR”. fier offset becomes “zero”, meaning the receiv- ing frequency is equal to the transmit frequency. Page 20 FT-450 O...

  • Page 23: Digital Voice Announcement

    Pressing the [ LOCK ] button toggles the locking of the [MAIN DIAL] knob and some switches, to pre- vent accidental frequency changes. You may select the locking schemes via the menu item “LOCKMOD”. See page 81 for details. [ LOCK ] button FT-450 O Page 21...

  • Page 24: My Bands Operation

    Press the [ BAND ] / [ BAND ] buttons to choose the [ BAND ] / [ BAND ] button Amateur band on which you wish to operate. Only those Amateur bands that have been skipped will appear as you scroll through the bands. Page 22 FT-450 O...

  • Page 25: My Modes Operation

    Press the [ MODE ] / [ MODE ] buttons to choose the [ MODE ] / [ MODE ] button operating mode on which you wish to operate. Only those operating modes that have been skipped will appear as you scroll through the modes. FT-450 O Page 23...

  • Page 26: Digital Voice Recorder

    The “ ” icon will blink in the display to confirm that playback is in progress. You may adjust the playback level of the recording with the [ AF GAIN ] knob [ AF GAIN ] knob Page 24 FT-450 O...

  • Page 27: Convenience Features

    LOCK IAGRAM The FT-450 includes a wide range of special features to suppress the many types of interference that may be encountered on the HF bands. However, real world interference conditions are constantly changing, so optimum setting of the controls is somewhat of an art, requiring familiarity with the types of interference and the subtle effects of some of the controls.

  • Page 28: Att/Ipo

    NTERFERENCE EJECTION “S ” IGNALS WITHIN The FT-450 includes an effective Noise Blanker, which can significantly reduce noise caused by automotive ignition systems. 1. Press the [ NB ] button to activate the Noise Blanker. 2. Press the [ NB ] button again to disable the Noise Blanker.

  • Page 29: (Tool For Comfortable And Effective Reception)

    [ AGC ] button, the S-meter will no longer deflect. Additionally, you will likely encounter distortion on stronger signals, as the IF amplifiers and the following stages are prob- ably being overloaded. FT-450 O Page 27...

  • Page 30: (Interference Rejection "Signals Within 3 Khz")

    By judicious use of the Contour filter, the “shoulder” of the passband response may be altered, or components removed from within the passband, allowing the desired signal to rise above the background noise and interference in a manner not obtainable with other filtering sys- tems. Page 28 FT-450 O...

  • Page 31: Shift

    [ SHIFT ] knob to reduce the interference level by mov- ing the filter passband so that the interfer- ence is outside of the passband. Desired Signal Desired Signal Desired Signal BANDWIDTH BANDWIDTH BANDWIDTH -SHIFT+ -SHIFT+ -SHIFT+ FT-450 O Page 29...

  • Page 32: Width

    (Nominal: 1.8 kHz). Desired Signal Desired Signal Desired Signal AM Mode: 3.0 kHz / 6.0 kHz / 9.0 kHz (Nominal: 6.0 kHz). FM Mode: 2.5 kHz / 5.0 kHz (Nominal: 5.0 kHz). BANDWIDTH BANDWIDTH BANDWIDTH -SHIFT+ DSP/SEL Page 30 FT-450 O...

  • Page 33: Notch

    Figure “B”, you can see the notching effect of the IF Notch filter as you rotate the [ DSP/ SEL ] knob to eliminate the incoming interfer- ence. Desired Signal Desired Signal (Heterodyne) (Heterodyne) BANDWIDTH BANDWIDTH DSP/SEL FT-450 O Page 31...

  • Page 34: Dnr

    4. To disable the Digital Noise Reduction system, press the [ DSP/SEL ] button again. The graph ef- fectively disappears from the “DNR” indicator of the DSP Graphic Display on the display confirm- ing that the IF Notch filter is no longer operating. Page 32 FT-450 O...

  • Page 35: Rf Gain

    Rotating the [ SQL/RF GAIN ] knob control to the fully counter-clockwise position will essentially dis- able the receiver, as the gain will be greatly re- duced. In this case, the S-meter will appear to be “pegged”. (That is a full-scale reading). FT-450 O Page 33...

  • Page 36: Ssb/Am Mode Transmission

    [ DSP/SEL ] knob, the [ DSP/SEL ] knob is selected to operate of one of the DSP functions. In this case, press the [ DSP ] button several times until the “>” icon disappears from the DSP Graphic Display. Page 34 FT-450 O...

  • Page 37: Tx Meter Selection

    5. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 6. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. FT-450 O Page 35...

  • Page 38: Transmitter Time-Out Timer (Tot)

    11. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 12. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. Page 36 FT-450 O...

  • Page 39: Microphone Gain Level Adjustment

    5. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 6. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. FT-450 O Page 37...

  • Page 40: Dsp Microphone Equalizer

    6: Low-frequency components are enhanced. 7: Low-frequency components are enhanced and High-frequency components are re- duced. 8: Low-frequency components are reduced and Mid-frequency components are enhanced. 9: Low-frequency components are reduced and High-frequency components are enhanced Page 38 FT-450 O...

  • Page 41: Automatic Tx/Rx Switching Using Voice Control (Vox)

    12. Press and hold the [ F ] button for one second to save this menu item. The “ ” icon will be blinking. the new setting and return to normal operation. FT-450 O Page 39...

  • Page 42: Monitor

    Because the Monitor feature utilizes a sampling of the transmitter’s DSP signal, it can be very useful for checking the adjustment of the Speech Processor or Microphone Equalizer on SSB, and for checking the general signal quality on AM and FM. Page 40 FT-450 O...

  • Page 43: Split-Frequency Operation

    REQUENCY PERATION A powerful capability of the FT-450 is its flexibility in Split Frequency operation, using VFO-A and VFO-B fre- quency registers. This makes the FT-450 especially useful for high-level DX-pedition use, as the Split operation capability is very advanced and easy to use.

  • Page 44: Voice Memory (Ssb/Am/Fm Modes)

    OICE EMORY SSB/AM/FM M You may utilize the Voice Memory capability of the FT-450 for repetitive messages. The Voice Memory system includes two memories (VM1 and VM2) capable of storing up to 10 seconds of voice audio each. The maximum that both memories can hold is 10 seconds.
  • Page 45 SSB/AM M RANSMISSION FT-450 O Page 43...

  • Page 46: Cw Mode Operation

    CW M PERATION The powerful CW operating capabilities of the FT-450 include operation using both an electronic keyer paddle and a “straight key” or emulation thereof, as is provided by a computer-based keying device. ETUP FOR TRAIGHT TRAIGHT EY EMULATION...

  • Page 47: Using The Built-In Electronic Keyer

    6. Press and hold the [ F ] button for one second to save acter (dot/dash/space) length is used for the stan- the new setting and return to normal operation. dard definition of code speed in “words per minute”. FT-450 O Page 45...
  • Page 48 12. Press and hold the [ F ] button for one second to save of this menu item. The “ ” icon will be blink- ing. the new setting and return to normal operation. Page 46 FT-450 O...

  • Page 49: Cw Spotting (Zero-Beating)

    In Figure B, CW Reverse has been en- gaged, so as to receive using LSB-side in- jection to eliminate interference. The beneficial effect of switching sidebands can clearly be seen in this example. Normal CW Carrier RX Passband CW Reverse Carrier RX Passband FT-450 O Page 47...

  • Page 50: Cw Delay Time Setting

    5. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 6. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. Page 48 FT-450 O...

  • Page 51: Cw Pitch Adjustment

    RAINING EATURE The FT-450 provides a unique CW Training feature, which sends random Morse Code five-character groups via the sidetone (heard in the speaker), so you can improve your CW proficiency whether or not the bands are open. 1. Press and hold the [ F ] button for one second to enter the Menu mode.

  • Page 52: Beacon Feature

    The FT-450’s unique “Beacon” feature allows you to set up the transceiver to send a repetitive message. For example, on a DX-pedition, the FT-450 beacon might be activated on a 50 MHz frequency, to alert DXers to possible band openings.
  • Page 53 “2”, or “PLAY3” if you wish to send the message manually which is stored in bank “3” in step 4. 3. Press the [ VOICE/C.S ] button to activate the Bea- con Feature (transmit the CW Beacon). FT-450 O Page 51...

  • Page 54: Fm Mode Operation

    At the factory, a microphone gain has been pro- Note: FM is only used in the 28 MHz and 50 MHz grammed that should be satisfactory for the supplied Amateur bands covered in the FT-450. Please MH-67 Hand Microphone. If you use an after-mar- do not use FM on any other bands.

  • Page 55: Repeater Operation

    EPEATER PERATION The FT-450 may be operated on 29 MHz and 50 MHz repeaters. Use this procedure to set the repeater shift direction, and the CTCSS squelch mode & tone. 1. Press and hold the [ F ] button for one second to enter the Menu mode.

  • Page 56: Tone Squelch/Dcs Operation

    13. Press and hold the [ F ] button for one second to save 250.3 251.4 the new setting and return to normal operation. When Tone Squelch is activated, the “ ” icon appears in the display. Page 54 FT-450 O...

  • Page 57: Tone Search Scanning

    If the Tone Scan feature does not detect a tone, it will continue to scan indefinitely. When this happens, it may be that the other station is not sending any tone. You can press the [ PMS/SCAN ] button to halt the scan at any time. FT-450 O Page 55...

  • Page 58: Convenient Memory Functions

    ONVENIENT EMORY FUNCTIONS The FT-450 contains 500 regular memories, labeled “MEM-001” through “MEM-500”, two Home channels, one for the HF band and another for the 50 MHz band, two special programmed limit memory pairs, labeled “MEM- P1L/MEM-P1U” and “MEM-P2L/MEM-P2U”, one QMB (Quick Memory Bank) memory, one Alaska Emergency Frequency Channel (5167.5 kHz), and five 60-meter (5 MHz) band channels.

  • Page 59: Memory Operation

    12.Press and hold the [ F ] button for one second to MEM-EMG M-12-EM save the new setting and return to normal opera- US5-001 ~ US5-005 M-13-01 ~ M-13-05 tion. To cancel Memory Group operation, repeat above steps, choosing “OFF” in step 10. FT-450 O Page 57...

  • Page 60: Regular Memory Operation

    EMORY PERATION The Regular Memory of the FT-450 allows storage and recall of up to 500 memories, each storing frequency, mode, and a wide variety of status information detailed previously. Memories may be organized into as many as ten Memory Groups, and additionally you get two pairs of band-limit (PMS) memories along with one QMB (Quick Memory Bank) memory and two Home channels.

  • Page 61: Erasing Memory Channel Data

    3. Press the [ MW V/M ] button momentarily to return to the originally-memorized frequency of the cur- rent memory channel. One more press of the [ MW V/M ] button will return you to VFO opera- tion. FT-450 O Page 59...

  • Page 62: Labeling Memories

    In Memory mode operation, the display indicates the channel numbers while selecting the memory chan- nels, then the display will switch to the Alphanumeric “Tag” (label) after two seconds. Page 60 FT-450 O...
  • Page 63 Alphanumeric “Tag” (label) will be replaced with the “TAG-OFF” nota- tion. 12.Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. FT-450 O Page 61...

  • Page 64: Home Channel Memories

    3. Press the [ HOME/RCL ] button momentarily to store the frequency and other data into the Home Channel. A double beep will confirm that you have held the [ HOME/RCL ] button in long enough. Page 62 FT-450 O...

  • Page 65: Qmb (Quick Memory Bank)

    If you do not over-write the con- tents of the current memory channel, the original con- tents will not be disturbed by the initiation of Memory Tune operation. Press the [ HOME/RCL ] button to return original QMB frequency and/or operating mode. FT-450 O Page 63...

  • Page 66: Scanning Operation

    CANNING PERATION You may scan either the VFO or the memories of the FT-450, and the radio will halt the scan on any station with a signal strong enough to open the receiver’s squelch. EMORY CANNING [ SQL/RF GAIN ] Knob...

  • Page 67: Vfo/Memory Scan

    See page 83. During Memory Group operation, only the channels within the current Memory Group will be scanned. FT-450 O Page 65...

  • Page 68: Programmable Memory Scanning

    In the SSB/CW and SSB-based Data modes, when the scanner encounters a signal strong enough to open the squelch, the scanner will step across the signal very slowly, giving you time to stop the scan, if you like. Page 66 FT-450 O...

  • Page 69: Operation On Alaska Emergency Frequency: 5167.5 Khz

    This frequency is only to be used when the immediate safety of human life and/or property are threatened, and is never to be used for routine communications. The FT-450 includes the capability for transmission and reception on 5167.5 kHz under such emergency condi- tions.

  • Page 70: Miscellaneous Settings

    5. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 6. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. Page 68 FT-450 O...

  • Page 71: Beeper Setting

    5. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 6. Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. FT-450 O Page 69...

  • Page 72: Beep Tone

    11. Press the [ DSP/SEL ] knob. The “ ” icon re- turns to appear continuously. 12.Press and hold the [ F ] button for one second to save the new setting and return to normal opera- tion. Page 70 FT-450 O...

  • Page 73: Automatic Power-Off (Apo)

    “APO” notation will blink on the dis- play and an alert bell will provide an audible warning from the speaker within one minute of the APO timer expiration, then the microprocessor will shut down the radio automatically. FT-450 O Page 71...

  • Page 74: Rtty (Radio Teletype) Operation

    If this is observed, there may be a Mark/Space polarity problem between your sta- In the FT-450, “RTTY” is a mode defined as being an tion and the other station. If so, try setting Menu “FSK” mode, whereby the closing and opening of a Item “RTYRPOL”...

  • Page 75: Packet Operation

    ACKET PERATION Packet operation is easily accomplished on the FT-450 by connecting your TNC (Terminal Node Controller) to the transceiver, per the illustration. INPUT DC 13.8V 2 2A DATA DATA SPKR DATA TUNER LINEAR DATA JACK DATA IN (Pin 1)

  • Page 76: Miscellaneous Afsk-Based

    AFSK-B ISCELLANEOUS ASED ODES The FT-450 may also be used for a host of other SSB-based Data modes. Please set up your system using the illustration as a guideline. INPUT DC 13.8V SPKR DATA TUNER LINEAR LINE IN or MIC IN...
  • Page 77 AFSK-B ISCELLANEOUS ASED ODES FT-450 O Page 75...

  • Page 78: Menu Mode

    The Menu system permits extensive customization of the FT-450. You can set up your transceiver to operate just the way you want. The Menu’s 62 items are grouped into generally used categories from “EXT MNU” to “VOXGAIN”. The Menu Mode may be set to display all 62 items or the abbreviated set of 16 most often used items.
  • Page 79 TOT (TOT TIME) OFF/1 ~ 20 (Min) TUNER (TUNER/ATAS) ATAS / EXT ATU / INT ATU INT ATU / INTRATU / F TRANS VOX DLY (VOX DELAY) 100 ~ 3000 (mSec) 500 (mSec) VOXGAIN 1 ~ 100 FT-450 O Page 77...
  • Page 80 CAT jack. The interconnection for to 118 characters may be stored. RTTY operation is shown below. Please refer to page 50 for storage procedure. INPUT DC 13.8V SPKR DATA TUNER LINEAR Requires the RTTY Software (Not Supplied) Page 78 FT-450 O...
  • Page 81 Menu “CW SPEED” to a speed faster than tion for a CW QSO without having to change 50 wpm (250 cpm), as the delay will make it impos- your FT-450’s Mode selection, if Menu “CW sible to transmit. AUTO” is set to “ON.”...
  • Page 82 Function: Selects the mode and sideband (if appli- cable) in the DIG (Digital) mode. Available Values: RTTY/USR-L/USR-U Default: RTTY RTTY: FSK RTTY operation USR-L: User-programmed custom operation based on LSB mode USR-U: User-programmed custom operation based on USB mode Page 80 FT-450 O...
  • Page 83 Memory Groups, each holding up to 50 memory chan- nels. MEM TAG Function: Stores Alpha-Numeric “Tags” for the memory channels. See page 60 for information on setting the “Memory Tags”. FT-450 O Page 81...
  • Page 84 [ FST ] key of the microphone. Available Values: Please see page 16. Default: N/A Presets of various functions can be assigned to the [ FST ] key of the microphone using this option. Page 82 FT-450 O...
  • Page 85 Default: HF: 0.10 (MHz) / 50 MHz: 1.00 (MHz) ENC: CTCSS Encoder The FT-450 may be utilized on 29 MHz and 50 MHz ENC/DEC: CTCSS Encoder/Decoder(Tone Squelch) repeaters. SQL/RFG (SQL/RF GAIN) Function: Selects the configuration of the front The conventional repeater shift used on 29 MHz is panel’s SQL/RF knob.
  • Page 86 Transmitter RF and the Receiver signal. Default: OFF F TRANS: The frequency data of the radio is sent to another FT-450. This feature is very usefll for the “SO2R” (Single Operator, Two Radio) operation. In this case, the inter- connection is as follows.
  • Page 87 The sensitivity is least at “1”, and maximum at “100”. The Delay time can be set while transmitting. The VOX operation sensitivity can be set while trans- mitting. FT-450 O Page 85...

  • Page 88: Cloning

    “Destination” “Source” Press the [VOICE/C.S] button INPUT INPUT DC 13.8V DC 13.8V 2 2A 2 2A SPKR SPKR DATA TUNER LINEAR DATA TUNER LINEAR D-SUB 9pin cross cable (User Supplied) Page 86 FT-450 O...

  • Page 89: Installation Of

    UNER PERATION The ATU-450 Automatic Antenna Tuner responds to control commands from the FT-450 Transceiver, providing microprocessor-based impedance matching on the 160 through 6 meter amateur bands. The impedance matching range is from 16.5 ohms to 150 ohms (up to 3:1 SWR). Accordingly, the ATU-450 should not be expected to match “Long wire”...

  • Page 90: Optional Accessories

    UNER PERATION 16.Press the [ DSP/SEL ] knob to save the new set- 9. Turn the FT-450 over to access the topside. Con- nect the TMP plug (marked green) from the ATU- ting. 17.Press and hold the [ F ] button for one second to...
  • Page 91 The impedance matching range of the ATU-450 is from 16.5 ohms to 150 ohms (up to 3:1 SWR). Accord- ingly, the ATU-450 should not be expected to match “long wire” type antennas unless you have taken specific design steps to ensure that the impedance presented to the FT-450 is within this specification. FT-450 O...

  • Page 92: Automatic Antenna Tuner

    FT-450. Connect the other end of the Control Cable’s miniature DIN connector to the CNTL jack on the FC-30. Connect one end of the Antenna Cable’s “M” type connector to the ANT jack on the rear of the FT-450. Connect the other end of the Antenna Cable’s “M”...
  • Page 93 Ì Always switch the transceiver off before connecting any cables to the FC-30. Ì If the FC-30 doesn’t tune even though you have pushed the TUNER switch of FT-450, it may be because the antenna or its coaxial cable have a serious problem (very high or low impedance due to an “open” or “short”...

  • Page 94: Automatic-Matching 200-Memory

    The optional FC-40 Automatic Antenna Tuner provides automatic tuning of a coaxial line so as to present a nominal 50-ohm impedance to the FT-450’s, HF/50 MHz antenna port. Before operation can begin, you must instruct the FT-450’s microprocessor that the FC-30 is being used. This is done using the Menu Mode: 1.
  • Page 95 ” icon will blink, the micropro- cessor will not retain the tuning data for that frequency, as the FC-40 presumes that you will want to adjust or repair your antenna system to correct the high SWR condition. FT-450 O Page 93...

  • Page 96: (Atas-100/-120/120A) Operation

    Interconnections to FT-450 “ATAS-120A” is connected referring to the figure below. Always turn off the power switch on the FT-450 and the external power supply before you connect any cables. Ì Do not touch the cables or connectors with wet hands.
  • Page 97 [ BAND ] button (to lower the an- tenna). While you hold in one of these keys, the FT-450 will generate a carrier, and you may watch the SWR meter of the FT-450, looking for the meter indication to reach its minimum value. When this is reached, release the [ BAND ] or [ BAND ] key, then release the PTT key to return to the “re-...

  • Page 98: Carrying Handle Mhg-1 Installation

    PTIONAL CCESSORIES MHG-1 I ARRYING ANDLE NSTALLATION The MHG-1 is a Carrying Handle designed to match FT-450 transceiver. Parts List Handle ..............1pc Handle end ............2pcs Mounting Screws (M4x15B) ......2pcs Installation Screw the Carrying Handle to the FT-450 using the supplied screws.

  • Page 99: Installation

    CCESSORIES MMB-90 I OUNTING RACKET NSTALLATION The MMB-90 is a mounting bracket designed to match the YAESU FT-450 transceiver. Parts List Mounting Bracket ............1 pc Double Face Adhesives ..........2 pcs Screws, Washers & Nuts for Mounting Bracket M4 Knob-screws ..........4 pcs M5X20 Screws .............

  • Page 100: Specifications

    At least 60 dB below peak output Undesired Sideband Suppression: At least 60 dB below peak output Audio Response (SSB): Not more than –6 dB from 400 to 2600 Hz Microphone Impedance: 600 Ohms (200 to 10 kOhms) Page 98 FT-450 O...
  • Page 101 4 to 16 Ohms (8 Ohms: nominal) Conducted Radiation: Less than 4000 µµW Specifications are subject to change, in the interest of technical improvement, without notice or obligation, and are guaranteed only within the amateur bands. FT-450 O Page 99...
  • Page 102 Page 100 FT-450 O...
  • Page 103 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 104 Copyright 2007 Printed in Japan VERTEX STANDARD CO., LTD. 0705X-BY All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO., LTD.

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