Vertex Standard FT-950 User Manual

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FT-950

Operating Manual

About This Manual . . .

The FT-950 is a leading-edge transceiver with a number of new and exciting features,

some of which may be unfamiliar to you. In order to gain the most enjoyment and

operating efficiency from your FT-950, we recommend that you read this manual in its

entirety, and keep it handy for reference as you explore the many capabilities of your

new transceiver.

Before using your FT-950, be sure to read and follow the instructions in the “Before You

Begin” section of this manual.

General Description

Congratulations on the purchase of your Yaesu amateur transceiver! Whether this is

your first rig, or if Yaesu equipment is already the backbone of your station, rest

assured that your transceiver will provide many hours of operating pleasure for years

to come.

The FT-950 is an elite-class HF transceiver providing exceptional performance both on

transmit and receive. The FT-950 is designed for the most competitive operating

situations, whether you primarily operate in contest, DX, or digital-mode

environments.

Built on the foundation of the popular FTdx9000 transceiver, and carrying the proud

tradition of the FT-1000 series, the FT-950 provides up to 100 Watts of power output on

SSB, CW, and FM (25 Watts AM carrier). Digital Signal Processing (DSP) is utilized

throughout the design, providing leading-edge performance on both transmit and

receive.

Available as an option for the FT-950 is the Data Management Unit (DMU-2000),

which provides extensive display capabilities via a user-supplied computer monitor.

Included are Band Scope, Audio Scope, X-Y Oscilloscope, World Clock, Rotator Control,

and extensive transceiver status displays, in addition to station logging capability.

For exceptional protection from strong nearby incoming signals, the optional RF

µTuning Kits may be connected via the rear panel, providing extraordinarily sharp

selectivity to protect your receiver from close-in interference on a crowded band.

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FT-950

Operating Manual

You may select, in the front end, one of two RF preamplifiers, or IPO (Intercept Point

Optimization) utilizing direct feed to the first mixer, and/or three levels of RF

attenuation in 6-dB steps.

The FT-950 receiver utilizes DSP filtering, incorporating many of the features of the

DX9000, such as Variable Bandwidth, IF Shift, and Passband Contour tuning.

Digital Noise Reduction and Digital Auto-Notch Filtering are also provided, along with

a manually-tuned IF Notch filter.

On the transmit side, the Yaesu-exclusive Three-Band Parametric Microphone

Equalizer allows precise and flexible adjustment of the wave-form created by your

voice and microphone. The Amplitude, Center Frequency, and Bandwidth of

equalization may be adjusted independently for the low-frequency, mid-range, and

high-audio-frequency spectra, and the transmitted bandwidth may also be adjusted, as

well.

Advanced features include Direct Keyboard Frequency Entry and Band Change,

Speech Processor, IF Monitor for Voice modes, CW Pitch control, CW Spot switch, Full

CW QSK, adjustable IF Noise Blanker, and all-mode Squelch. Two TX/RX antenna

ports are provided on the rear panel. Two key jacks are provided (one each on the front

and rear panels), and they may be configured independently for paddle input or

connection to a straight key or computer-driven keying interface. The CW Message

Memory is provided.

Frequency setup is extraordinarily simple on the FT-950. Besides direct frequency

entry for both the VFO-A and VFO-B, separate keys are provided for band selection,

and each band key accesses three independent VFO frequency/mode/filter settings per

band, so you can establish separate VFO settings for three different parts of each band.

In addition, 99 memories are provided, each of which stores its own mode and IF filter

selection, in addition to frequency, Clarifier offset, and scan-skip status. What’s more,

five quick-recall (“QMB”) memories can instantly store operational settings at the push

of a button.

The built-in automatic antenna tuner includes 100 memories of its own, automatically

storing antenna matching settings for quick automatic recall later.

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FT-950

Operating Manual

Interfacing for digital modes is extremely simple with the FT-950, thanks to dedicated

RTTY/PKT connection jack on the rear panel. Optimization of the filter passbands,

DSP settings, carrier insertion point, and display offset are all possible via the Menu

programming system.

The Yaesu CAT system provides a direct link to the transceiver CPU for computer

control and customization of tuning, scanning, and other operating functions. The

FT-950 includes a built-in data level converter for direction connection to a personal

computer serial port. Yaesu products are supported by most all of the leading contest

and DX logging programs, and the extensive programming protocol is included in this

manual, if you wish to write your own software!

Advanced technology is only part of the FT-950 story. Vertex Standard stands behind

our products with a worldwide network of dealers and service centers. We greatly

appreciate your investment in the FT-950, and we look forward to helping you get the

most out of your new transceiver. Please feel free to contact your nearest dealer, or one

of Vertex Standard’s national headquarters offices, for technical advice, interfacing

assistance, or accessory recommendation. And watch Vertex Standard U.S.A.’s Home

Page for late-breaking information about Vertex, Standard Horizon, and Yaesu

products: http://www.vertexstandard.com.

Please read this manual thoroughly, so as to gain maximum understanding of the full

capability of the FT-950, and we thank you again for your purchase!

Table of Contents

General Description 1

Accessories & Options 4

Supplied Accessories 4

Available Options 4

Before You Begin 5

Connecting AC Power 5

AC Input Voltage Selection 5

Extending the Front Feet 6

Adjusting the Main Tuning Dial Torque 6

Resetting the Microprocessor 7

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Resetting Memories (Only) 7

Menu Resetting 7

Full Reset 7

Installation and Interconnections 8

Antenna Considerations 8

About Coaxial Cable 8

Grounding 9

Connection of Antenna and Power Cables 10

Connection of Microphone and Headphone 11

Key, Keyer, and Computer-Driven Keying Interconnections 12

VL-1000 Linear Amplifier Interconnections 13

Interfacing to Other Linear Amplifiers 14

Plug/Connector Pinout Diagrams 15

FT-950

Operating Manual

Front Panel Controls & Switches 16

Display Indications 28

Rear Panel 32

Basic Operation: Receiving on Amateur Bands 35

Operation on 60-Meter (5 MHz) Band (U.S. version only) 38

CLAR (Clarifier) Operation on Main (VFO-A) 39

LOCK 40

DIM 40

Convenience Features 42

Dual Receive 42

Using Headphones for Dual Receive 43

Sideband Diversity Reception 43

Bandwidth Diversity Reception 44

Polarity Diversity 44

P.BACK (Audio Playback) from Main (VFO-A) Receiver 45

P.BACK feature from the optional FH-2 Remote Control Keypad 45

“MY Bands” Operation 46

Band Stack Operation 47

C.S (Custom Switch) 47

Rotator Control Functions 48

More Frequency Navigation Techniques 49

Keyboard Frequency Entry 49

Using the [SUB VFO-B] knob 49

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Operating Manual

Using the UP/DOWN switches of the supplied MH-31B8 Hand Microphone 49

Receiver Operation (Front End Block Diagram) 50

IPO (Intercept Point Optimization) 51

ATT 51

RF Gain (SSB/CW/AM Modes) 52

Advanced Interference-Suppression Features: RF Front End 53

Using the VRF (Variable RF Front-end Filter) 53

Interference Rejection (Signals Off Frequency by Just a Few kHz) 54

R.FLT (Roofing Filters) 54

Interference Rejection (Signals within 3 kHz) 55

CONTOUR Control Operation 55

IF SHIFT Operation (SSB/CW/RTTY/PKT/AM Modes) 56

WIDTH (IF DSP Bandwidth) Tuning (SSB/CW/RTTY/PKT Modes) 57

FT-950

Using IF Shift and Width Together 57

IF Notch Filter Operation (SSB/CW/RTTY/PKT/AM Modes) 58

Digital Noise Reduction (DNR) Operation 59

Digital Notch Filter (DNF) Operation 59

NARROW (NAR) One-Touch IF Filter Selection 60

IF Noise Blanker (NB) Operation 61

Tools for Comfortable and Effective Reception 62

AGC (Automatic Gain Control) 62

SLOPED AGC Operation 63

Mute Feature (Main (VFO-A) Band) 63

SSB/AM Mode Transmission 64

Using the Automatic Antenna Tuner 66

ATU Operation 66

About ATU Operation 67

Lithium Battery Replacement 68

Enhancing Transmit Signal Quality 69

Using the Speech Processor (SSB/AM Mode) 69

Adjusting the SSB Transmitted Bandwidth (SSB Mode) 70

Parametric Microphone Equalizer (SSB/AM mode) 71

Transmitter Convenience Features 72

Voice Memory (SSB/AM/FM modes) 72

Voice Memory Operation from the optional FH-2 Remote Control Keypad 73

VOX (Automatic TX/RX Switching using Voice Control: SSB/AM/FM Modes) 74

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Operating Manual

MONITOR (SSB/AM/FM modes) 74

Split Operation Using the TX Clarifier (VFO-A Operation) 75

Split-Frequency Operation 76

VFO Tracking Feature 76

Quick Split Operation 77

CW Mode Operation 78

Setup for Straight Key (and Straight Key emulation) Operation 78

Using the Built-in Electronic Keyer 79

Full Break-in (QSK) Operation 79

Setting the Keyer Weight (Dot/Space:Dash) Ratio 80

Selecting the Keyer Operating Mode 80

CW Convenience Features 81

CW Spotting (Zero-Beating) 81

FT-950

Using CW Reverse 82

CW Delay Time Setting 83

CW Pitch Adjustment 83

Contest Memory Keyer 84

Message Memory 84

Transmitting in the Beacon Mode 85

TEXT Memory 86

Contest Number Programming 87

Decrementing the Contest Number 87

Contest Memory Keyer (Using the optional FH-2 Remote Control Keypad) 88

Message Memory 88

TEXT Memory 90

FM Mode Operation 92

Basic Operation 92

Repeater Operation 93

Memory Operation 94

Convenient Memory functions 94

QMB (Quick Memory Bank) 95

Standard Memory Operation 96

Memory Storage 96

Memory Channel Recall 96

Checking a Memory Channel’s Status 97

Erasing Memory Channel Data 97

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Operating Manual

Moving Memory Data to the Main Band (VFO-A) 98

Memory Tune Operation 98

Memory Groups 99

Memory Group Assignment 99

Choosing the Desired Memory Group 99

Operation on Alaska Emergency Frequency: 5167.5 kHz (U.S. Version Only) 100

VFO and Memory Scanning 102

VFO Scanning 102

Memory Scan 103

PMS 104

Packet Operation 105

Packet Setup (Including Subcarrier Frequency) 105

Basic Setup 105

RTTY (Radio Teletype) Operation 106

Setting Up for RTTY Operation 106

Basic Setup 106

Miscellaneous AFSK-Based Data Modes 107

Menu Mode 108

Using the Menu 108

Menu Mode Reset 108

AGC Group 112

DISPLAY Group 112

DVS Group 113

KEYER SETUP Group 114

GENERAL Group 115

S IF SFT Group 116

MODE-AM Group 117

MODE-CW Group 117

MODE-DAT Group 119

MODE-FM Group 119

MODE-RTY Group 120

MODE-SSB Group 120

RX AUDIO Group 121

RX DSP Group 121

SCOPE Group 123

TUNING Group 124

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TX AUDIO Group 124

TX GNRL Group 125

Specifications 126

Accessories & Options

Supplied Accessories

Hand Microphone 1 pc MH-31B8

DC Power Cord 1 pc T9025225

Separe Fuse (25A) 1 pc Q0000074

4-pin DIN Plug 1 pc P0091004

5-pin DIN Plug 1 pc P0091006

1/4-inch 3-contact Plug 1 pcs P0090008

FT-950

Operating Manual

3.5 mm 3-contact Plug 1 pcs P0091046

3.5 mm 2-contact Plug 1 pcs P0090034

RCA Plug 2 pcs P0091365

Operating Manual 1 pc

Warranty Card 1 pc

Available Options

MD-200A8X Ultra-High-Fidelity Desk-Top Microphone

MD-100A8X Desk-Top Microphone

YH-77STA Lightweight Stereo Headphone

SP-2000 External Speaker with Audio Filter

VL-1000/VP-1000 Linear Amplifier/AC Power Supply

DMU-2000 Data Management Unit

RF µTuning Kit A For 160 m Band

RF µTuning Kit B For 80/40 m Bands

RF µTuning Kit C For 30/20 m Bands

FH-2 Remote Control Keypad

DVS-6 Digital Voice Memory Unit

Before You Begin

Vertex Standard Co., Ltd.

FT-950

Operating Manual

Power Connection

The DC power connector for the FT-950 must only be connected to a DC source

providing 13.8 Volts DC (±10 %), and capable of at least 22 Amperes of current. Always

observe proper polarity when making DC connection:

The RED DC power lead connects to the Positive (+) DC terminal: and

The BLACK DC power lead connects to the Negative (–) DC terminal.

We recommend the use of the FP-1030A AC Power Supply. Other models of power

supplies may be used with the FT-950, but the 13.8 VDC input voltage, 22-Ampere

current capability, and DC cable polarity guidelines described above must be strictly

followed.

Note that other manufacturers may use the same type of DC power connections as does

your FT-950 transceiver, but the wiring configuration of the other manufacturer’s plug

may be different from the specified for your transceiver. Serious damage can be caused

if improper DC connections are made; consult with a qualified service technician when

in doubt.

Caution: Permanent damage can result improper supply voltage, or reverse-polarity

voltage, is applied to the FT-950. The Limited Warranty on this transceiver does not

cover damage caused by application of AC voltage, reverse polarity DC, or DC voltage

outside the specified range of 13.8 V ±10 %.

When replacing fuses, be certain to use a fuse of the proper rating. The FT-950 requires

a 25 A blade fuse.

Extending the Front Feet

In order to elevate the front panel for easy viewing, the front left and right feet of the

bottom case may be extended.

 Pull the front legs outward from the bottom panel.

 Rotate the legs counter-clockwise to lock them in the extended position. Be sure the

legs have locked securely in place, because the transceiver is quite heavy and an

unlocked leg could result in damage, should the transceiver move suddenly.

Retracting the Front Feet

 Rotate the legs clockwise, and push them inward while rotating to the right.

 The front feel should now be locked in the retracted position.

Adjusting the Main Tuning Dial Torque

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FT-950

Operating Manual

The torque (drag) of the Main Tuning Dial knob may be adjusted according to your

preferences. Simply hold down the rear skirt of the knob, and while holding it in place

rotate the knob itself to the right to reduce the drag or to the left to increase the drag.

Available adjustment range is 120°.

Resetting the Microprocessor

Resetting Memories (Only)

Use this procedure to reset (clear out) the Memory channels previously stored, without

affecting any configuration changes you may have made to the Menu settings.

1. Press the front panel’s [POWER] switch to turn the transceiver off.

2. Press and hold in the [A>M] button; while holding it in, press and hold in the front

panel’s [POWER] switch to turn the transceiver on. Once the transceiver comes on,

you may release the [A>M] button.

Menu Resetting

Use this procedure to restore the Menu settings to their factory defaults, without

affecting the memories you have programmed.

1. Press the front panel’s [POWER] switch to turn the transceiver off.

2. Press and hold in the [MENU] button; while holding it in, press and hold in the

front panel’s [POWER] switch to turn the transceiver on. Once the transceiver

comes on, you may release the [MENU] button.

Full Reset

Use this procedure to restore all Menu, Memory settings, and Tuner Memory settings

to their original factory defaults. All Memories will be cleared out by this procedure.

1. Press the front panel’s [POWER] switch to turn the transceiver off.

2. Press and hold in the [FAST] and [LOCK] buttons; while holding them in, press

and hold in the front panel’s [POWER] switch to turn the transceiver on. Once the

transceiver comes on, you may release the other two switches.

Important Note: When the optional µTuning Kit is connected to the FT-950, disconnect

the all cables from the µTuning Kit then perform the Full Reset.

Installation and Interconnections

Antenna Considerations

The FT-950 is designed for use with any antenna system providing a 50 Ohm resistive

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FT-950

Operating Manual

impedance at the desired operating frequency. While minor excursions from the

50-Ohm specification are of no consequence, the transceiver’s Automatic Antenna

Tuner may not be able to reduce the impedance mismatch to an acceptable value if the

Standing Wave Ratio (SWR) present at the Antenna jack is greater than 3:1.

Every effort should, therefore, be made to ensure that the impedance of the antenna

system utilized with the FT-950 be as close as possible to the specified 50-Ohm value.

Note that the “G5RV” type antenna does not provide a 50-Ohm impedance on all HF

Amateur bands, and an external wide-range antenna coupler must be used with this

antenna type.

Any antenna to be used with the FT-950 must, ultimately, be fed with 50 Ohm coaxial

cable. Therefore, when using a “balanced” antenna such as a dipole, remember that a

balun or other matching/balancing device must be used so as to ensure proper antenna

performance.

About Coaxial Cable

Use high-quality 50-Ohm coaxial cable for the lead-in to your FT-950 transceiver. All

efforts at providing an efficient antenna system will be wasted if poor quality, lossy

coaxial cable is used. This transceiver utilizes standard “M” (“PL-259”) type connectors.

Grounding

The FT-950 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.

 It can minimize RF currents flowing on the shield of the coaxial cable and the

chassis of the transceiver; such currents may lead to radiation which can cause

interference to home entertainment devices or laboratory test equipment.

 It can minimize the possibility of erratic transceiver/accessory operation caused by

RF feedback and/or improper current flow through logic devices.

An effective earth ground system may take several forms; for a more complete

discussion, see an appropriate RF engineering text. The information below is intended

only as a guideline.

Typically, the ground connection consists of one or more copper-clad steel rods, driven

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FT-950

Operating Manual

into the ground. If multiple ground rods are used, they should be positioned in a “V”

configuration, and bonded together at the apex of the “V” which is nearest the station

location. Use a heavy, braided cable (such as the discarded shield from type RG-213

coaxial cable) and strong cable clamps to secure the braided cable(s) to the ground rods.

Be sure to weatherproof the connections to ensure many years of reliable service. Use

the same type of heavy, braided cable for the connections to the station ground bus

(described below).

Inside the station, a common ground bus consisting of a copper pipe of at least 25 mm

(1”) diameter should be used. An alternative station ground bus may consist of a wide

copper plate (single-sided circuit board material is ideal) secured to the bottom of the

operating desk. Grounding connections from individual devices such as transceivers,

power supplies, and data communications devices (TNCs, etc.) should be made directly

to the ground bus using a heavy, braided cable.

Do not make ground connections from one electrical device to another, and thence to

the ground bus. This so-called “Daisy-Chain” grounding technique may nullify any

attempt at effective radio frequency grounding. See the drawing below for examples of

proper grounding techniques.

Inspect the ground system--inside the station as well as outside--on a regular basis so

as to ensure maximum performance and safety.

Besides following the above guidelines carefully, note that household or industrial gas

lines must never be used in an attempt to establish an electrical ground. Cold water

pipes may, in some instances, help in the grounding effort, but gas lines represent a

significant explosion hazard, and must never be used.

Connection of Antenna and Power Cables

Please follow the outline in the illustration regarding the proper connection of antenna

coaxial cables, as well as the DC power cable.

Use a short, thick, braided cable to connect your station equipment to the buried

ground rod (or alternative earth ground system).

Advice:

 Do not position this apparatus in a location with direct exposure to sunshine.

 Do not position this apparatus in a location exposed to dust and/or high humidity.

 Ensure adequate ventilation around this apparatus, so as to prevent heat build-up

and possible reduction of performance due to high heat.

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 Do not install this apparatus in a mechanically-unstable location, or where objects

may fall onto this product from above.

 To minimize the possibility of interference to home entertainment devices, take all

precautionary steps including separation of TV/FM antennas from Amateur

transmitting antennas to the greatest extent possible, and keep transmitting

coaxial cables separated from cables connected to home entertainment devices.

 Ensure that the DC power cable is not subject to undue stress or bending, which

could damage the cable or cause it to be accidentally unplugged from the rear

panel DC input jack.

 Be absolutely certain to install your transmitting antenna(s) such that they cannot

possibly come in contact with TV/FM radio or other antennas, or with outside

power or telephone lines.

Connection of Microphone and Headphone

Key, Keyer, and Computer-Driven Keying Interconnections

The FT-950 includes a host of features for the CW operator, the functions of which will

be detailed in the “Operation” section later. Besides the built-in Electronic Keyer, two

key jacks are provided, one each on the front and rear panels, for convenient

connection to keying devices.

The Menu system allows you to configure the front and rear panel KEY jacks according

to the device you wish to connect. For example, you may connect your keyer paddle to

the front panel KEY jack, and use Menu item “037 A1A F-TYPE” for paddle input,

while connecting the rear panel’s KEY jack to the keying line from your personal

computer (which emulates a “straight key” for connection purposes), and configure the

rear panel jack using Menu item “039 A1A R-TYPE.”

Both KEY jacks on the FT-950 utilize “Positive” keying voltage. Key-up voltage is

approximately +5V DC, and key-down current is approximately 1 mA. When

connecting a key or other device to the KEY jacks, use

only

a 3-pin (“stereo”) 1/4” phone

plug; a 2-pin plug will place a short between the ring and (grounded) shaft of the plug,

resulting in a constant “key-down” condition in some circumstances.

VL-1000 Linear Amplifier Interconnections

Be sure that both the FT-950 and VL-100 are turned off, then follow the installation

recommendations contained in the illustration.

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FT-950

Operating Manual

Note:

 Please refer to the VL-1000 Operating Manual for details regarding amplifier

operation.

 Please do not attempt to connect or disconnect coaxial cables when your hands are

wet.

About the CONTROL Cable

The VL-1000 may be operated with the FT-950 whether or not the CONTROL Cable is

connected; however, the CONTROL Cable allows you to tune up the amplifier

automatically by just pressing the [F SET] or [TUNE] key on the VL-1000, so as to

transmit a carrier for tuning purposes.

Set the front panel’s INPUT switch to the “INPUT2”.

To link the FT-950 and VL-1000 Power switches, set the VL-1000 REMOTE switch to

the ON position.

Interfacing to Other Linear Amplifiers

The TX GND OUT pin (pin 2) of the LINEAR jack is a transistor “open collector” circuit,

capable of handling positive amplifier relay coil voltages of up to +60VDC at 200 mA or

+30 VDC at 1 A. If you plan on using multiple linear amplifiers for different bands, you

must provide external band-switching of the “Linear Tx” relay control line from the

“TX GND OUT” line at the LINEAR jack.

Important Note!: Do not exceed the maximum voltage or current ratings for the “TX

GND OUT” pin (pin 2) of the LINEAR jack. This line is not compatible with negative

DC voltages, nor AC voltages of any magnitude.

Most amplifier control relay systems require only low DC voltage/current switching

capability (typically, +12V DC at 25 ~ 75 mA), and the switching transistor in the

FT-950 will easily accommodate such amplifiers.

Plug/Connector Pinout Diagrams

IMPORTANT NOTE:

The μ-TUNE and DMU connectors are special connectors for this transceiver. Please do

not connect any accessory or other device not specifically approved by Vertex Standard.

Failure to observe this precaution may cause damage not covered by the Limited

Warranty on this apparatus.

Vertex Standard Co., Ltd.

FT-950

Operating Manual

Front Panel Controls & Switches

1. [POWER] Switch

Press and hold in this switch for two seconds to turn the transceiver on. Press and hold

in this switch for two seconds, similarly, to turn the transceiver off.

2. [ANT 1-2] Switch

Pressing this selects either the ANT 1 or 2 jack on the rear panel, and allows

convenient antenna switching at the press of button. The selected antenna jack is

indicated at the Block Diagram Display in the display.

3. [TUNE] Switch

This is the on/off switch for the FT-950’s Automatic Antenna Tuner.

Pressing this button momentarily places the antenna tuner in line between the

transmitter final amplifier and the antenna jack (“TUNER” icon will appear in the

display). Reception is not affected.

Pressing and holding in this button for two seconds, while receiving in an amateur

band, activates the transmitter for a few seconds while the automatic antenna tuner

rematches the antenna system impedance for minimum SWR. The resulting setting is

automatically stored in one of the antenna tuner’s 100 memories, for instant automatic

recall later when the receiver is tuned near the same frequency.

Pressing this button momentarily, while the Tuner is engaged, will take the Automatic

Antenna tuner out of the transmit line.

Note: When the Automatic Antenna Tuner is tuning itself, a signal is being transmitted.

Therefore, be absolutely certain that an antenna or dummy load is connected to the

selected antenna jack before pressing and holding in the [TUNE] button to start

antenna tuning.

4. [MOX] Switch

Pressing this button engages the PTT (Push to Talk) circuit, to activate the transmitter

(the LED inside this button will glow red). It must be turned off (the red LED will be

off) for reception. This button replicates the action of the Push to Talk (PTT) switch on

the microphone. When engaging the [MOX] button, or otherwise causing a

transmission to be started, be certain you have either an antenna or 50-Ohm dummy

load connected to the selected Antenna jack.

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Operating Manual

5. [VOX] Switch

This button enables automatic voice-actuated transmitter switching in the SSB, AM,

and FM modes. While activated, the LED inside this button glows red. The controls

affecting VOX operation are via the Menu item “114 TGEN V GAIN”, “115 TGEN VOX

DLY”, and “116 TGEN ANTI VOX”. By proper adjustment of these controls, hands-free

voice-actuated operation is possible.

6. [MONI] (Monitor) Switch

This button enables the transmit monitor in SSB, CW, AM, and FM modes. While

activated, the “MONI” icon appears in the display. Adjustment of the Monitor level is

accomplished using the [MONI] knob.

Advice: When using headphones, the Monitor is highly useful for making adjustments

to the Parametric Equalizer or other voice quality adjustments, because the voice

quality heard in the headphones is such a “natural” reproduction of the transmitted

audio quality.

7. [PROC] (Processor) Switch

This button enables the Parametric Microphone Equalizer and Speech Processor for

SSB/AM transmission. When the Parametric Microphone Equalizer is activated, the

“MIC EQ” icon appears in the display. When the Speech Processor is activated, the

“MIC EQ” and “PROC” icons appear in the display. Adjustment of the Processor level is

accomplished via the Menu item “109 TGEN PROCLVL”.

Advice:

 The Speech Processor is a tool for increasing the average power output through a

compression technique. However, if the Processor level is advanced too far, the

increase in compression becomes counter-productive, as intelligibility will suffer.

We recommend that you monitor the sound of your signal using the Monitor (with

headphones).

 When the optional Data Management Unit (DMU-2000) is connected, you may use

the Audio Scope/Oscilloscope page to help you adjust the setting of the compression

level of the Speech Processor for optimum performance using your voice and

microphone.

8. [SPOT] Switch

This button turns on the CW receiver spotting tone; by matching the SPOT tone to that

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FT-950

Operating Manual

of the incoming CW signal (precisely the same pitch), you will be “zero beating” your

transmitted signal on to the frequency of the other station.

The offset tone frequency will indicate at the frequency display area of the display

while this button is pressed.

9. [BK-IN] Switch

This button turns the CW break-in capability on and off. While CW break-in is

activated, the “BK-IN” icon appears in the display.

10. [KEYER] Switch

This button toggles the internal CW keyer on and off. While activated, the “KEYER”

icon appears in the display. The Keyer sending speed is adjusted via the front panel’s

[SPEED] knob and the CW Hang Time is adjusted via the Menu item “044 A1A

DELAY”.

11. [AGC] Switch

This button selects the AGC characteristics for the receiver. Available selections are

FAST, MID, SLOW, or AUTO, and the “AGC” icon will change according to the AGC

characteristics selected.

Press the [AGC] button repeatedly to select the desired receiver-recovery time constant.

Press and hold in the [AGC] button for two seconds to disable the AGC (for testing or

weak-signal reception).

Advice:

 The Attenuator may be used in conjunction with the [IPO] button to provide two

stages of signal reduction when an extremely strong signal is being received.

 If the AGC receiver-recovery time is set to “Off” by pressing and holding in the

[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 probably being overloaded.

12. PHONES Jack

A 1/4-inch, 3-contact jack accepts either monaural or stereo headphones with 2- or

3-contact plugs. When a plug is inserted, the loudspeaker is disabled.

Note: When wearing headphones, we recommend that you turn the AF Gain levels

down to their lowest settings before turning power on, to minimize the impact on your

hearing caused by audio “pops” during switch-on.

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Operating Manual

13. [METER] Switch

This button determines the function of the meter during transmission.

Press this button to change the meter function in the transmit mode as follows:

ALC  SWR  ID  VDD  COMP  ALC ……

ALC: Indicates the relative ALC voltage.

SWR: Indicates the Standing Wave Ratio (Forward: Reflected).

ID: Indicates the final amplifier drain current.

VDD: Indicates the final amplifier drain voltage.

COMP: Indicates the speech compressor level (SSB modes only).

14. [MIC GAIN] Knob

This knob adjusts the microphone input level for (non-processed) SSB and AM

transmission.

Advice: If you adjust the [MIC GAIN] knob while speaking in a somewhat louder than

normal voice level, watch the ALC level and adjust the [MIC GAIN] knob so that the

ALC reaches just to the right edge of the ALC scale. Then, when you speak in a more

normal voice level, you’ll be certain not to be over-driving the mic amplifier stage.

15. [SPEED] Knob

This knob adjusts the keying speed of the internal CW keyer (4 ~ 60 WPM). Clockwise

rotation increases the sending speed.

When turning this knob while pressing the [KEYER] button, the frequency display

shows the keying speed.

16. Microphone Connector

This 8-pin jack accepts input from a microphone utilizing a traditional YAESU HF

transceiver pinout.

17. KEY Jack

This 1/4-inch, 3-contact jack accepts a CW key or keyer paddles (for the built-in

electronic keyer), or output from an external electronic keyer. Pinout is shown on

page ??. Key up voltage is 5 V, and key down current is 1 mA. This jack may be

configured for keyer, “Bug,” “straight key”, or computer keying interface operation via

Menu item “037 A1A F-TYPE” (see page ??). There is another jack with the same name

on the rear panel, and it may be configured independently for Internal Keyer or

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Operating Manual

pseudo-straight-key operation.

Note: You cannot use a 2-contact plug in this jack (to do so produces a constant “key

down” condition).

18. [MONI] Knob

This knob adjusts the audio level of the transmit RF monitor during transmission

(relative to the [AF GAIN] knob), when activated by the [MONI] button.

19. [SQL] Knob

This knob sets the signal level threshold which at the receiver audio is muted, in all

modes. It is very useful during local rag-chews, to eliminate noise between incoming

transmissions. This control is normally kept fully counter-clockwise (off), except when

scanning and during FM operation.

20. [SHIFT] Switch

Pressing this button allows you to adjust the IF DSP bandwidth using the [SELECT]

knob. While activated, the LED inside this button glows orange.

21. [WIDTH] Switch

Pressing this button allows you to adjust the overall bandwidth of the IF DSP filter

using the [SELECT] knob. While activated, the LED inside this button glows orange.

22. [CONT] Switch

Pressing this button allows you to select the DSP Contour filter response using the

[SELECT] knob. While activated, the LED inside this button glows orange.

23. [NOTCH] Switch

Pressing this button allows you to adjust the center frequency of the IF Notch filter

using the [SELECT] knob. While activated, the LED inside this button glows orange.

24. [µ-TUNE] Switch

Pressing this button allows you to adjust the center frequency of the µ-Tuning filter

passband using the [SELECT] knob, when the optional RF µTuning Kit is connected.

While activated, the LED inside this button glows orange.

25. [CLEAR] Switch

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Operating Manual

Pressing this button to reset the status of the functions which is selected from the five

buttons at the left of this button to factory default.

26. [SELECT] Knob

This knob is used to adjust the status of the functions depending on the five buttons

located above this knob.

FUNCTION Switch EFFECT SHIFT Rotate this knob to vary the passband of the IF DSP filter by 20

Hz steps. The total adjustment range is ±1 kHz. The position of the passband can be observed on the display.

WIDTH Rotate this knob to set the overall bandwidth of the DSP IF

filter. Counter-clockwise rotation reduces the bandwidth, while clockwise rotation increases the bandwidth. The current bandwidth can be observed on the display.

CONT Pressing this knob to turn the CONTOUR filter on and off.

Rotate this knob to select the CONTOUR filter response. The peak position of the CONTOUR filter can be observed on the display.

NOTCH Pressing this knob to turn the IF NOTCH filter on and off.

Rotate this knob to adjust the center frequency of the IF NOTCH filter. The null position of the IF NOTCH filter can be observed on the display.

µ-TUNE Pressing this knob to turn the optional RF µTuning Kit on and

off. Rotate this knob to adjust the center frequency of the µ-Tuning filter. The peak position of the µ-Tuning filter can be observed on the Tuning Offset Indicator field of the display.

This knob also uses to select the Menu item when the Menu mode is engaged.

Press and hold this knob for two seconds to activate the optional Voice Memory feature

for the SSB/AM/FM modes, or the Contest Keyer for the CW mode. See page ?? (Voice

Memory feature) or page ?? (Contest Keyer) for details.

27. [(VFO-A) RX] Indicator/Switch

This button, when pressed, the transceiver receives the VFO-A frequency. The LED

inside this button will glow green when the transceiver receives the VFO-A frequency.

When the transceiver receives the VFO-A frequency, pressing this button momentarily

will mute the receiver, and the indicator will blink. Pressing the button once more will

restore receiver operation, and the indicator will glow green steadily.

28. QMB (Quick Memory Bank) Switches

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[STO] (Store) Button

Pressing this button copies VFO-A contents (frequency, mode, bandwidth, and also

repeater direction/shift frequency and CTCSS functions on the FM mode) into

consecutive QMB Memories.

[RCL] (Recall) Button

Pressing this button recalls one of up to five Quick Memory Bank memories for

operation.

29. [NAR] (Narrow) Switch

In the SSB/CW/RTTY/PSK modes, this button is used to set the bandwidth of the DSP

(digital) IF filters to Narrow bandwidth.

Advice: You may adjust the bandwidth using the [SELECT] knob when the [WIDTH]

button is engaged.

In the AM mode, this button is used to toggle the receiver’s bandwidth between wide (9

kHz) and narrow (6 kHz).

In the FM mode on the 28 MHz and 50 MHz bands, this button is used to toggle the

FM deviation/bandwidth between wide ( kHz Dev./12.5 kHz BW).

30. [SPLIT] Switch

Pressing this button to activate split frequency operation between the VFO-A (used for

reception) and the VFO-B (used for transmission). If you press and hold in the [SPLIT]

button for two seconds, the “Quick Split” feature will be engaged, whereby the VFO-B

will automatically be set to a frequency 5 kHz higher than the VFO-A frequency with

same operating mode, and the transceiver will be placed in the Split mode.

31. [TXW] (TX Watch) Switch

Pressing this button lets you monitor the transmit frequency when split frequency

operation is engaged. Release the button to return to normal operation.

±5.0 kHz Dev./25.0 kHz BW) and narrow (±2.5

32. [C.S] Switch

Press this button momentarily to recall a favorite Menu Selection directly.

To program a Menu selection as the short-cut, press the [MENU] button to enter the

Menu, then select the Menu item you want to set as the short-cut. Now press and hold

in the [C.S] button for two seconds; this will lock in the selected Menu item as the

short-cut.

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33. [MENU] Switch

This button is used for gaining access to the Menu system, for configuring various

transceiver characteristics. Menu operation is described in detail, in this manual,

beginning on page ??.

Important note: pressing this button momentarily activates the Menu, and the Menu

items will appear on the display; once you are finished, you must press and hold in the

[MENU] button for two seconds to save any configuration changes (momentarily

pressing the [MENU] button to exit will not save the changes).

38. Main Tuning Dial Knob

This large knob adjusts the operating frequency of the VFO-A or a recalled memory.

Clockwise rotation of this knob increases the frequency. Default tuning increments are

10 Hz (100 Hz in AM and FM modes); when the [FAST] button is pressed, the tuning

steps increase. The available steps are:

Operating Mode One Step* One Dial Rotation LSB/USB/CW/RTTY/PKT(LSB) 10 Hz (100 Hz) 10 kHz (100 kHz) AM/FM/PKT(FM) 100 Hz (1 kHz) 100 kHz (1 MHz)

* Numbers in parentheses indicate steps when the [FAST] button is “ON”.

Advice: The tuning steps for the Main Tuning Dial knob are set, at the factory, to 10 Hz

per step. Via Menu item “084 TUN DIALSTP,” however, you may change this setting

from 10 Hz to 1 Hz instead. When 1 Hz basic steps are selected, the action of the

[FAST] button will be changed to 1/10 of the values listed above.

39. [(VFO-A)TX] Indicator/Switch

When this button is pushed, the LED inside this button will glow red. The transceiver

transmits on the VFO-A frequency (subject to any Clarifier offset, of course) when press

the PTT switch.

Advice: If this indicator is not illuminated, it means that the [(VFO-B)TX]

Indicator/Switch has been selected (it will be glowing red). In this case, transmission

will be effected on the frequency and mode programmed for the VFO-B.

40. [FAST] Switch

Pressing this button will increase or decrease the tuning rate of the Main Tuning Dial

knob (for VFO-A frequency) and the [CLA/VFO-B] knob (for VFO-B frequency) a factor

of ten, as mentioned in the previous section.

When this function is activated, the “FAST” icon appears in the display.

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Advice: This switch will be affects to the VFO-A and VFO-B independently.

41. [LOCK] Switch

This button toggles locking of the Main Tuning Dial knob (for VFO-A frequency tuning)

and the [CLA/VFO-B] knob (for VFO-B frequency tuning). When the button is active,

the Main Tuning Dial knob and [CLAR/VFO-B] knob can still be turned, but the

frequency will not change, and the “LOCK” icon appears in the display.

Advice: This switch will be affects to the VFO-A and VFO-B independently.

42. [A>B] Switch

Press this button momentarily to transfer data from the VFO-A frequency (or a

recalled memory channel) to the VFO-B, overwriting any previous contents in the

VFO-B. Use this key to set both VFO-A and VFO-B to the same frequency and mode.

43. [A<>B] Switch

Pressing this button momentarily exchanges the contents of the VFO-A (or a recalled

memory channel) and the VFO-B.

44. [V/M] Switch

This button toggles frequency control between the memory system and the VFO-A.

Either “MR” or “MT” icon will be displayed to the under the frequency display field to

indicate the current selection. If you have tuned off of a Memory channel frequency

(“MT” icon is appeared), pressing this button returns the display to the original

memory contents (“MR” icon is appeared), and pressing it once more returns operation

to the VFO-A (no icon).

45. [M>A] Switch

Pressing this button momentarily displays the contents of the currently-selected

memory channel for 10 seconds.

Holding this button in for two seconds copies the data from the currently-selected

memory to the VFO-A, as two beeps sound. Previous data in the VFO-A will be

overwritten.

46. [A>M] Switch

Pressing this button momentarily displays the contents of the currently-selected

memory channel for 10 seconds.

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Pressing and holding in this key for two seconds (until the double beep) copies the

current operating data into the currently selected memory channel, overwriting any

previous data stored there.

47. [BAND] Keys

These keys allow one-touch selection of the desired Amateur band (1.8 ~ 50 MHz).

What’s more, these keys may be used for direct entry of a desired operating frequency

during VFO operation.

48. MODE Switches

Pressing one of these switches selects the operating mode. Per the chart below,

repeated presses of a particular switch may cause the precious mode to be selected

from within a mode group (for example pressing [SSB] button repeatedly toggles

between “LSB” and “USB” mode.

Switch Variable Mode Selections [SSB] LSB USB [CW] CW(LSB) CW(USB) [AM/FM] AM  FM [RTTY/PKT] RTTY(LSB)  RTTY(USB)  PKT(LSB)  PKT(USB)  PKT(FM)

49. [ATT] Switch

This button selects the degree of attenuation, if any, to be applied to the receiver input.

Available selections are –6 dB, –12 dB, –18 dB, or OFF, and the selected attenuation

level appears in the ATT column of the Block Diagram Display on the display.

Advice: The Attenuator may be used in conjunction with the [IPO] switch to provide

two stages of signal reduction when an extremely strong signal is being received.

50. [IPO] (Intercept Point Optimization) Switch

This button may be used to set the optimum front end characteristics of the receiver

circuit for a very strong-signal environment. Available selections are AMP 1 (low

distortion amplifier), AMP 2 (2-stage low-distortion RF amplifier), or ON (bypasses the

front end RF amplifier), and the selected receiver RF amplifier appears at the IPO

column of the Block Diagram Display on the display.

51. [R.FLT] (Roofing Filter) Switch

This button selects the bandwidth of the receiver’s first IF Roofing Filter. Available

selections are 3 kHz, 6 kHz, 15 kHz, or Auto, and the selected bandwidth appears in

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the FLT column of the Block Diagram Display on the display.

Advice: Because the roofing filter is in the first IF, the protection it provides against

interference is quite significant. When set to AUTO, the SSB bandwidth is 6 kHz, while

CW is 3 kHz and FM/RTTY are 15 kHz. On a crowded SSB band, however, you may

wish to select the 3 kHz filter, for the maximum possible interference rejection.

52. [NB] Switch

This button turns the IF Noise Blanker on and off.

Press this button momentarily to reduce short-duration pulse noise; the “NB” icon will

appear in the display.

Press and hold in this button for one second to reduce longer-duration man-made pulse

noises; the “NB” icon will blink for three seconds, then will appear continuously in the

display.

Press this button again to disable the noise blanker; the “NB” icon will disappear.

53. [AF GAIN] -o- [RF GAIN] Knobs

[AF GAIN] Knob

The inner [AF GAIN] knob sets the receiver’s audio volume level. Typically, you will

operate with this control set between the 9 o’clock and 10 o’clock positions.

[RF GAIN] Knob

The outer [RF GAIN] knob is the receiver’s RF gain control, which adjusts the gain of

the receiver’s RF and IF amplifier stages. This control is normally left in the fully

clockwise position.

54. [RX CLAR] Switch

Pressing this button activates the RX Clarifier, to allow offsetting the receiving

frequency temporarily. Press this button once more to return the receiver to the

original frequency; the Clarifier offset will still be present, though, in case you want to

use it again. To cancel the Clarifier offset, press the [CLEAR] button.

55. [TX CLAR] Switch

Pressing this button activates the TX Clarifier, to allow offsetting the transmit

frequency temporarily. Press this button once more to return the transmitter to the

original frequency; the Clarifier offset will still be present, though, in case you want to

use it again. To cancel the Clarifier offset, press the [CLEAR] button.

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56. [CLEAR] Switch

Pressing this button clears out any frequency offset you have programmed into the

Clarifier register (thereby setting the offset to “Zero”).

57. [(VFO-B)RX] Indicator/Switch

This is the button that switches the receiving frequency to the VFO-B, the green LED

imbedded within the button will light up. Pressing this button again will return the

receiving frequency to the VFO-A, and the imbedded green LED will turn off.

58. [(VFO-B)TX] Indicator/Switch

This is the button that turns the VFO-B transmitter “On” and “Off”. When this button

is pressed to transfer transmitter control to the VFO-B frequency and mode, the red

LED imbedded within the button will light up. Pressing this button again will transfer

frequency/mode control back to the VFO-A side, and the red LED imbedded within this

button will turn off.

59. [BAND] Switch

Pressing this button allows you to select the operating band (Amateur bands) using the

[CLAR/VFO-B] knob.

60. [GRP] Switch

Pressing this button allows you to select the memory group using the [CLAR/VFO-B]

knob.

61. [MHz] Switch

Pressing this button allows you to tune the VFO frequency down or up in 1 MHz

increments, using the [CLAR/VFO-B] knob.

62. [MCH] Switch

Pressing this button allows you to select the memory channel using the [CLAR/VFO-B]

knob.

63. [CLAR/VFO-B] Knob

This knob usually tunes the Clarifier offset frequency up to ±9.99 kHz, otherwise, this

knob is used to adjust the status of the functions depending on the five buttons located

around this knob.

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FUNCTION Switch EFFECT [(VFO-B)RX]

Indicator/Switch

[BAND] button Rotate this knob to select the amateur band. [GRP] button Rotate this knob to select the CONTOUR filter response.

[MHz] button Rotate this knob to tune the VFO frequency in 1 MHz step. [MCH] button Rotate this knob to select the memory channel.

1. PROC

This indicator appears whenever the DSP Speech Processor is activated.

Rotate this knob to adjust the VFO-B frequency by a same step as the Main Tuning Dial knob. The frequency display will be changed to the VFO-B frequency.

The peak position of the CONTOUR filter can be observed on the display.

Display Indications

FT-950

2. MONI

This indicator appears whenever the transmit monitor circuit is activated.

3. KEYER

This indicator appears whenever the internal CW keyer is activated.

4. BK-IN

This indicator appears whenever CW break-in operation is activated.

5. NB

This indicator appears when the receiver’s “short-duration” Noise Blanker is activated.

This indicator will blink for three seconds, and thereafter appears continuously, when

the receiver’s “longer-pulse” Noise Blanker is activated.

6. NAR

This indicator appears whenever the receiver’s narrow IF DSP filter is engaged.

7. S/PO

Indicates the received signal strength, from S-0 to S-9+60dB on receiving.

Indicates the RF Power Output, from 0 to 150 Watts on transmit.

Advice: The S and PO meters can be provided the Peak-hold function via the Menu

item “007 DISP PKH S” and “008 DISP PKH PO”.

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8. Multi Function Meter

There are five functions multi-meter. The bottom five selections in the list below are

transmit functions, determined by the selections of the [METER] switch.

ALC: Indicates the relative ALC voltage.

SWR: Indicates the Standing Wave Ratio (Forward: Reflected), from 1.0 to 3.0.

ID: Indicates the final amplifier drain current, 0 to 30 ampere.

VDD: Indicates the final amplifier drain voltage (nominal value: 13.8 V).

COMP: Indicates the speech compressor level, from 0 to 30 dB.

Advice: The ALC and ID meters can be provided the Peak-hold function via the Menu

item “009 DISP PKH ALC” and “010 DISP PKH ID”.

9. TUNER

This indicator appears when the internal Automatic Antenna Tuner is activated.

10. HI-SWR

This indicator appears if the directional coupler and microprocessor detect an

abnormally high SWR condition (over 3.0:1) that cannot be resolved by the Automatic

Antenna Tuner.

Note: If this indicator appears, check to be sure that you have the correct antenna

selected on the current operating band. If so, you will need to check the condition of the

antenna, its coaxial cable, and/or the connectors on the cable so as to locate and correct

the fault.

11. MIC EQ

This indicator appears whenever the Three-Band Parametric Microphone Equalizer is

activated via the Menu.

12. REC

This indicator appears while the optional Voice Memory Unit is recording your voice

message, or the Contest Keyer is recording your CW keying.

13. PLAY

This indicator appears while the optional Voice Memory Unit is playing back the

recorded your voice message, or the Contest Keyer is playing back the recorded CW

keying.

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14. Block Diagram Display

ANT (1, 2):

Indicates the antenna selected for operation by the front panel’s [ANT 1-2] button.

ATT (OFF, –6 dB, –12 dB, –18 dB):

Indicates the attenuation level selected for operation by the front panel’s [AGC]

button.

FLT (µ-TUNE, THRU):

Indicates the RF filter selected for operation by the front panel [µ-TUNE] button.

Advice: The µ-TUNE filter is an option. The “µ-TUNE” icon will not appear when

the optional µ-TUNE unit is not connected.

IPO (AMP 1, AMP 2, ON):

Indicates the front end RF amplifier selected for operation by the front panel [IPO]

button.

FT-950

R.FLT

Indicates the IF Roofing Filter selected: AUTO (mode-determined), 3 kHz, 6 kHz,

or 15 kHz.

AGC (AUTO, FAST, MID, SLOW):

Indicates the AGC decay time selected for operation by the front panel [AGC]

switch.

15. DNR

This indicator appears whenever the Digital Noise Reduction feature is activated.

16. DNF

This indicator appears whenever the Digital Notch Filter is activated.

17. CONTOUR

The peak position of the CONTOUR Filter is depicted graphically here when the

CONTOUR Filter is activated.

18. NOTCH

The null position of the IF Notch Filter is depicted graphically here when the IF Notch

Filter is activated.

19. WIDTH

Indicates the bandwidth of the DSP IF filter.

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Operating Manual

20. SHIFT

Indicates the peak position of the DSP IF filter.

21. TX

This indicator appears during transmission.

22. BUSY

This indicator appears whenever the receiver squelch is open. If this indicator is not

showing, and reception seems to have been lost on the receiver for no apparent reason,

check the position of the [SQL] knob and rotate it fully counter-clockwise to restore

reception.

23. FAST

This indicator appears when the Main Tuning Dial knob’s tuning rate is set to “fast.”

24. LOCK

This indicator appears when the Main Tuning Dial knob is locked.

25. LSB, USB, CW, AM, FM, RTTY, PKT

Displays the currently-selected operating mode.

26. Frequency Display

This is the frequency display.

Advice:

 When setting the Menu items, the Menu item number, Menu group name, and

Menu item name will appear in this area during setup.

 When setting the CTCSS frequency for Encoding or Tone Squelch operation, the

current tone information will appear in this area during setup.

 When controlling the optional rotator, the current rotation speed will appear in this

area during setup.

27. Tuning Offset Indicator

This is a tuning scale that, as configured from the factory, provides a visual CW tuning

indication of the incoming signal’s offset from your transceiver’s CW carrier frequency,

as programmed by the relative clarifier offset, or the peak position of the optional

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