Vertex Standard FT-950 User manual

FT-950
Operating Manual
Vertex Standard Co., Ltd.
1
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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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
FTDX9000, 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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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
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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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
Using IF Shift and Width Together57
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 Features72
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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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
Using CW Reverse 82
CW Delay Time Setting 83
CW Pitch Adjustment 83
Contest Memory Keyer 84
Message Memory84
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 Memory88
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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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
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

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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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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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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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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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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.

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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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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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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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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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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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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