Kenwood TS-50S User manual

GOc /AN>)|
HF TRANSCEIVER
S-50S
INSTRUCTION
MANUAL
KENWOOD CORPORATION

|. IMPORTANT SAFETY INSTRUCTIONS
Thank you for purchasing this new
transceiver.
Notice to the user:
One or more of the following statements
may be applicabie to this equipment.
; FCC WARNING
This equipment generates or uses radio
frequency energy. Changes or
modifications to this equipment may
cause harmful interference unless the
“modifications are expressly approved in
_ the instruction manual. The user could
lose the authority to operate this
equipment if an unauthorized change or
‘modification is made.
| Information to the digital device user
| .
| required by the FCC:
' This equipment has been tested and |
| found to comply with the limits for a
'Class B digital device, pursuant to Part
115 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 generate radio
frequency energy and, if not installed
and used in accordance with the
instructions, may cause harmful
interference to radio communications. |
However, there is no guarantee that the i
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television
reception, which can be determined by
_ turning the equipment off and on, the
‘user is encouraged to try to correct the
_interference by one or more of the
| following measures:
= Reorient or relocate the receiving
antenna.
- Increase the separation between
the equipment and receiver.
-- Connect the equipment into an
outlet on a circuit different from that |
to which the receiver is connected. f
-- Consult the dealer for technical :
| assistance.
SAFETY PRECAUTIONS
Please read all safety and operating instructions before
using this unit. For best results, be aware of all
warnings on the unit and follow the provided operating
instructions. Retain these safety and operating
instructions for future reference.
1 Power Sources
Connect this unit only to the power source
described in the operating instructions or as
marked on the unit itself.
2 Power Cable Protection
Route all power cables safely. Ensure the power
cables can neither be walked upon nor pinched by
items placed near or against the cables. Pay
particular attention to locations near AC
receptacles, AC extension bars and points of entry
to the unit.
Never pull or stretch
the cord.
3 Abnormal Odors
The presence of an unusual odor or smoke is
often a sign of trouble. Immediately turn the
power OFF and remove the power cable. Contact
a dealer or the nearest service center for advice.
POWER OFF!
4 Electrical Shocks
Take care not to drop objects or spill liquids into
the unit through enclosure openings. Metal
objects, such as hairpins or needles, inserted into
the unit may contact voltages resulting in serious
electrical shocks. Never permit children to insert
any objects into this unit.
[eel SL Ree ER en

TF
Ventilation
Locate the unit so as not to interfere with its
ventilation. Do not place books or other
equipment on the unit that may impede the free
movement of air. Allow a minimum of 4 inches (10
cm) between the rear of the unit and the wail or
operating desk shelf.
9
10
IMPORTANT SAFETY INSTRUCTIONS
Power Lines
Minimum recommended distance for an outdoor
antenna from power lines is one and one-half
times the vertical height of the associated antenna
support structure. This distance allows adequate
clearance from the power lines if the support
structure should fall for any reason.
Heat
Locate the unit away from heat sources such as
radiators, stoves, amplifiers or other devices that
produce substantial amounts of heat.
o a a
> See
d
4
and attics.
il
Cleaning
Do not use volatile solvents such as alcohol, paint
thinner, gasoline or benzene to clean the cabinet.
Use a clean dry cloth.
lightning. It also reduces the chance of a build-up
of static charges. Section 810 of the National
Electrical Code, ANSI/NFPA 70, provides
information with respect to proper grounding of the
mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of
grounding conductors, location of antenna-
discharge unit, connection to grounding
electrodes, and requirements for the grounding
electrode. See the accompanying illustration.
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL COOF
LEAD IN
wine
ENNA
DISCHARGE UNIT
(NEC SECTION 810-20
‘GROVNOING CONDUCTORS
(NEC SECTION 810-211
Lne—-—~ POWER SERVICE GROUNDING
ELECTRODE SYSTEM
NEC ~ NATIONAL ELECTRICAL CODE INGE: ART 260, PART: HI
13
14
of time.
Servicing
Remove the unit's enclosure only to do accessory
installations described by this manual or accessory
manuals. Follow provided instructions carefully to
avoid electrical shocks. If unfamiliar with this type
of work, seek assistance from an experienced
individual, or have a professional technician do the
task.
Damage Requiring Service
Enlist the services of qualified personnel in the
following cases:
a) The power supply cable or plug is damaged.
b) Objects have fallen, or liquid has spilled into the
unit.
c) The unit has been exposed to rain.
d) The unit is operating abnormally or performance
has degraded seriously.
e) The unit has been dropped, or the enclosure
damaged.

GENERAL DESCRIPTION
Thank you for purchasing this new KENWOOD information:
compact HF transceiver. This transceiver has many
powerful features. To get the most out of these 1 Noise entering from the DC power supply, or static
features, we suggest you read this instruction manual electricity may disable the buttons or the tuning
carefully, and keep it handy for further reference. control. If this occurs, determine the source of the
This transceiver provides these main features: interference and take appropriate measures to
reduce or eliminate the offending noise. If the
1 This radio is so compact that you can easily transceiver still does not function normally, reset
transport, install and operate from either a the microprocessor. (For the reset procedure, refer
portable, mobile or fixed station installation. to page 45.)
2 Setting-up transceiver functions is simple with 2 Resetting the transceiver will clear the memory
the easy-to-use Menu System. The transceiver channels and return the menu settings (described
ees! if sco
Carrier Operated modes are provided for this Transmission, tne Tan speed accelerates 10 1s
function.
maximum
speed,
and
the
sound
of
the
fan
will
become more noticeable. !f the heat sink
4 The tuning control automatically changes the temperature becomes excessively high, the
frequency step, depending on how fast the control temperature protection circuit will trip to reduce the
is rotated. (Achieved by a “fuzzy logic” control transmission output.
technique).
For extended transmit periods, or when operating FM
or RTTY, we recommend selecting 50 W or 10 W
5 The TF-SET function allows changing the transmit transmitter output power.
frequency while still listening to your received
signal.
6 The Automatic Power Off function switches off
the power if the transceiver has not been operated
for approximately three hours.
7 The MC-47 microphone allows assigning four
control functions to the microphone PF
(Programmed Function) keys.
In addition, this transceiver offers many other HF
transceiver functions, even though it is very compact.

TABLE OF CONTENTS
CHAPTER 1 INSTALLATION AND
CONNECTION
CHAPTER 4 MEMORY FEATURES
RNG R ER Be BPE REI ag MEMORY CHANNEL STORAGE .............,..31
Gy Detuer Pehle Canaartinn Zz a
DU Power Supply Connection .............0. 9 MEMORY TRANSFER.........----- 002-0 e eee 33
Antenna COnMeCUON waive Yams Maes y act 9 MEMORY CHANNEL CLEAR ..........-.0-0.00- 34
Ground Connection.........0.... 0... e eee 10 MEMORY CHANNEL PROTECT...............-. 35
ACCESSORY
CONNECTIONS...................
Ni
Memory
Protect}
.......-----ccccceeeeeees
25
CHAPTER2 CONTROLS AND Memory Protect 2...............0000220005 35
CONNECTORS QUICK MEMORY CHANNEL SELECT..........., 36
FRONT PANEL CONTROLS ................0006 12 Selecting a Channel Containing Data ........ 36
REAR PANEL CONNECTORS................--- 18 Selecting an Empty Channel..,............. 36
DISBEA Ries chin si don Ritesh aa aN ae tl aes 19
CHAPTER5 SCAN
CHAPTER 3 COMMUNICATION MEMORY SCAN ... 6. cece cece ene eee eee 37
CONFIRMATION BEFORE OPERATION ,......... 21 Group Scan cece eee eens 37
SSB OPERATION... 0. eee ee eens 22 All-channel Scan oo... 0.0... cee eee 37
RECOptiON 3 2 :sci2 cccneaeceeaaad ate eciaats es tad 22 Confirming Start and End Frequencies........ 38
Transmission... 1.00. eee eee ee 22 Memory Channel Lock-Out................. 38
CW OPERATION | fi. cca et sense or en eases ne 23 PROGRAM SCAN .......... 00 cece cece eee eae 39
RECO DTION i kee eRe ad aie tage det 23 SCAN tiaiaie sent Saale edee Lath awe 39
Transmission 0.0000... ccc ccc c este eee e ees 24 Confirming Start and End Frequencies........ 39
EMP OPERATION ys viscciaticoaft s Ma arecnaavaur gene e 25 Scan Holds tscs ver aiaaeavaneehereuaneeend 39
Reception: os eeisc ences pee ak eee ane 25 BUSY-FREQUENCY STOP...............000005 40
TrANSMISSION. 2... eee es 25 SCAN SPEED CHANGE ....... 0.0.0.0 00sec eae 40
AM OPERATION 1.0... . ccc ccc tte e eee 26
PRCODUON coach de pavtaivn nected Sa wRe eNews 26
Transmission. ....... ccc cece enna eee 26
DATA OPERATION (PACKET, AMTOR, RTTY)..... 27
RECEPTION
ois
apiataiiates
sae
oe
alee
areca
es
27
TPANSMISSION 2... eee eee eee 28
FM REPEATER OPERATION ................008 29
SPLIT-FREQUENCY OPERATION .............0- 30

i ae)
CHAPTER6G OTHER USEFUL FEATURES
TROUBLESHOOTING. .....00000 0000 cece cece 52
GONTROLS
ose
sees
eee
eee
rete
nett
een
ees
_
RECO
LON:
>
denehei.dc
pataee.
og
feleore'
tasadttace
nag
eae
52
Frequency
Step
Change...
-.-........+...-.
a
TranSmissiony.:.
5
6c.
bye
ga
eee
ee
ate
ca
Aa
hs
§3
Amateur
Band
Switching
...................
41
ADJUSTMENTS
«00...
ooo
ccccccecccccccccceeee
54
PESGDEERON: xeon eth ahk Pasichiraite sy a REFERENCE FREQUENCY CALIBRATION ........ 54
DUAL DIGITAL VFOS.... 0... 0.0... c ce eee eee 42
AUTOMATIC POWER OFF (APO). .......2....... 42 CHAPTER 10 OPTIONS INSTALLATION
INTERFERENCE AND NOISE ELIMINATION. ...... 43 FILTER ssc mint ostevtoet ea oataea bet 55
TE SRI ei fe cucu A cig i tasiale une ae ce eee. 43 TCOXO UNIT (SO-2) 000 eee eee 56
JE
PROP
oi
ouinn
oak
nd
Vy
sted
owwaeie
sha
ee
43
Noise Blanker .......---.---- cece eee eee 43 OPTIONAL ACCESSORIES.................. 57
AUDIO AND SOUND FEATURES................. 43 SPECIFICATIONS ........................5. 59
Beep TONG oe coe encanta nennehe neces 43
Mode Confirmation Tone Output............. 43
Morse Code Alarm Output ..............000. 44
Carrier Point Shift... 0.0.0.0... 0000 cc0eee 44 ACCESSORIES
MICROPROCESSOR RESET........... 0020. .20, aS MC-47 Multifunction Microphone
Initial
SettingS
...........
0...
c
ec
cece
e
eee
45
(TEO5
2B
5)
2s
oo
aies
wane
venue
donee
sadury
1ea.
othe net Ricci ality! seduce nase
PIE
POS
a
eRe
Senden
Ghisensee
ean
-
DC
Power
Cable
(E30-3157-05)
..............
lea,
CHAPTER7 MENU SET-UP Handle (KO1-0416-05) ..........0... cea eee lea.
MENU A ING arene, oA aia che tuudsrarace capecdilbcetnt 4
MOET
e
Calibration
Cable
(E31-2154-05).
2...
02.2.2...
lea.
MENU
B
SETTING
......
0...
0
eee
ee
47
To
set
the
reference
frequency
CHAPTER 8 OPERATION USING Fuse, 25A (FO5-2531-05)............. 0.000 lea.
ACCESSORIES For the DC power cable
LINEAR AMPLIFIER Fuse, 4A (FO6-4029-05) 0.0... 1ea.
= EF |
OPSAtION Joo do ce coat eaekweusd Mio neh bomeee 48 FE Pare gy Oe ON hace
Warranty Card... 0.0... ccc eee ee eee 1 copy
MIGROPHONG 3.053 san Seas deen sada dadeenees 4
. U.S.A./Canada and Europe versions only
UP and DWN Buttons .................2.--- 49
PTT Button. ..... 0... cc ccceccceccecececcee 49 Instruction Manual (B62-0291-00)........... 1 capy
Programmable Function Keys ............... 49 Save the box and packing in the event the transceiver
is to be transported for portable or remote operation,
CHAPTERS MAINTENANCE AND or shipped for upgrade, maintenance or service.
eC Le Ter En

1 INSTALLATION AND CONNECTION
PREPARATION FOR MOBILE OPERATION
When you use this transceiver for mobile operation, do
not attempt to perform any kind of configuration or
menu set-up operation while driving your car, simply
because it is too dangerous. Stop the car and then
perform transceiver configuration. In addition, do not
wear headphones when you are driving.
DC POWER CABLE CONNECTION
Connect the DC power cable directly to the vehicle's
battery terminals using the shortest route. Do not use
the cigarette lighter socket since vibration may loosen
the connection, resulting in poor transceiver
performance due to an unstable power source.
ante ae,
@ Installation example
1 Install the mounting bracket using the supplied flat
washers and self-tapping screws.
2 Position the transceiver in the bracket to
determine the best viewing angle.
3 Insert and tighten the supplied SEMS screws and
washers.
Self-tapping screw
You can also use the optional MB-13 mounting
bracket. For the correct mounting procedure, refer
to the instructions packaged with the MB-13.
Be sure to use a 12 V vehicle battery which has
sufficient current capacity.
If the current to the transceiver is insufficient, the
display may darken during transmission (at audio
peaks during SSB operation), or transmitter output
power may drop excessively.
Note: ff you use the transceiver for a long period when the
vehicle battery has not been fully charged, or when the engine
has been stopped, the battery may become discharged, and will
not have sufficient reserves to start the vehicle. Avoid using the
transceiver under these conditions.
ANTENNA CONNECTION
Use a whip antenna for mobile operation. HF mobile
antennas are larger (and have a larger wind load) and
are heavier than VHF antennas. Therefore, use a
strong and rigid mount to safely and securely install
the HF mobile antenna.
The success of your mobile installation will depend
largely on the type of antenna, and its correct
installation. The transceiver can give excellent results,
if the antenna system and its installation is given
careful attention.
The performance requirements of a mobile antenna
are the same as those for a fixed station installation.
(Refer to page 9.)

1 INSTALLATION AND CONNECTION
a
GROUND CONNECTION
The ground, which is the other half of the antenna
system, is very important when using a mobile whip
antenna. Connect the feed line ground for the antenna
securely to the vehicle’s chassis, and be certain to
bond (electrically connect} the vehicle body to the
chassis, The sheet metal will provide the primary
ground plane, so be sure to establish a good RF
connection from the feed line to both the chassis and
the body. For comprehensive information on mobile
antennas and their successful installation and
optimization, refer to the ARRL Handbook or similar
publications.
If your car has plastic bumpers, make sure to ground
the antenna mount to the body and the chassis of the
car.
IGNITION NOISE
This transceiver has been designed with a Noise
Blanker to filter ignition noise. However, some cars
may generate excessive ignition noise. If there is
excessive noise, use suppressor spark plugs (with
resistors), or perform other countermeasures as may
be required to reduce these undesired electrically
generated noises. The ARRL Handbook, or other
similar reference, has a wealth of information regarding
this topic.
Note:
1 The negative fead fram the battery must remain disconnected
until all connections are completed, in order ta prevent the
possibility of an accidental short circuit during installation.
2 After installation and wiring, confirm that aif work has been
performed correctly, then reconnect the negative battery lead.
3 tf the fuse blows, check that the power cable has not been
damaged or short circuited, is not pinched or squashed, etc.
After resolving the problem, replace the fuse with one of the
same type and rating.
4 After the wiring is finished, wrap the fuse holder with heat-
resistant tape to protect the fuse against heat and moisture.
5 10 NOT remove the fuse holder even if the power cabie is
too long.

1 INSTALLATION AND CONNECTION
PREPARATION FOR FIXED STATION OPERATION
The following figure illustrates how the cables must be
connected on the rear of the transceiver. Connect the
cables securely so they will not come loose if they are
pulled.
Speaker
* DC 13.8 V
DC POWER SUPPLY CONNECTION
In order to use this transceiver for fixed station
operation, you will need a separate 13.8 V DC power
supply, which may be purchased separately. DO NOT
attempt to directly connect the transceiver to an AC
outlet!
polarities are correct.
Fuse holder
AC
DC power cable (supplied)
This transceiver draws less than 20.5 A (with an
optional automatic antenna tuner, less than 22.5 A)
when transmitting at full power output.
Kenwood recommends you use the optional DC power
supply, model PS-33, which matches the electrical and
cosmetic features of this transceiver.
Note:
1 Before connecting the OC power supply to the transceiver, be
sure to switch the transceiver and the DC power supply off.
2 Do not plug the DC power supply into an AC outlet until you
make all connections.
3. if the power supply voltage exceeds 18 V, the transceiver
protection circuit will turn the pawer off automatically. The
transceiver resumes operatian automatically when the input
voltage drops to 13.8 V.
@ Installation example
External speaker
(option)
External DC power
supply (option)
For a deluxe installation, take the time to install the
transceiver in the mounting bracket. The diagram
offers some mounting suggestions.
Added benefits of using the mounting bracket in your
fixed station include the following:
e You can angle the transceiver for best visibility from
your operating position.
@ The transceiver remains stationary when you attach
e The bracket eliminates the risk of anybody bumping
the transceiver off your operating desk.
If you decide to mount the transceiver in a horizontal
plane instead of angling it up or down, use the top or
middie row of mounting holes on the bracket. The
bottom row of holes cannot be used to mount the
transceiver horizontally.

1 INSTALLATION AND CONNECTION
SSS a
ANTENNA CONNECTION
The type of the antenna system, consisting of the
antenna, ground, and feed, will greatly affect the
successful performance of the transceiver. Use a
properly adjusted antenna of good quality to let your
transceiver perform at its best. Use a good quality 50
ohm coaxial cable and a first quality connector for the
connection. Match the impedance of the coaxial cable
and antenna so that the SWR is 1.5:1 or less. All
connections must be clean and tight.
While the transceiver's protection circuit will activate if
the SWR is greater than 2.5:1, do not rely on
protection to compensate for a poorly functioning
antenna system. High SWR will cause the transmitter
output to drop, and may lead to radio frequency
interference to both consumer products (such as
stereo receivers and televisions), and RF interference
to the transceiver itself. Reports that your signal is
Fry an Ces dae wet
certain that at the least, your coax connector is loose
at the rear of the radio, and at the worst, your antenna
system is not efficiently radiating power.
Caution: Ina fixed station installation, use a lightning arrester
ta prevent fire, electric shock, or damage to the transceiver.
Using the optional auto antenna tuner allows the
transceiver to perform at its very best. For additional
information on the antenna tuner, refer to
“AUTOMATIC ANTENNA TUNER” on page 48.
GROUND CONNECTION
At the minimum, a good DC ground is required to
prevent such dangers as electric shock. For superior
communications results, a good RF ground is required,
against which the antenna system can operate. Both
of these conditions can be met by providing a good
earth ground for your station. Bury one or more
ground rods, or a large copper plate under the ground,
and connect this to the transceiver GND terminal. Use
heavy gauge wire Or a copper strap, cut as short as
possible, for this connection. Just as for antenna work,
all connections must be clean and tight.
Caution; DO NOT attempt to use a gas pipe (which is clearly
dangerous), an electrical conduit (which has the whole house
wiring attached and may act like an antenna), or a plastic water
pipe for a ground,
10

1 INSTALLATION AND CONNECTION
ACCESSORY CONNECTIONS
External Speaker
Ensure any external speaker used has an impedance
from 8 to 16 ohms. Use a 3.5mm mono (two
conductor) plug.
Headphones
Use headphones having 4 to 32 ohms impedance.
You can also use stereo headphones, When
‘headphones are used, no sound is heard from the
internal (or optional external) speaker. Use a 3.5mm
mono {two conductor) or stereo (three conductor)
plug.
Microphone
To communicate in the voice modes, connect a
microphone having an impedance of 600 ohms to the
MIC jack. Optional microphones include the MC-43S,
MC-60S8, MC-80, and MC-85. Do not use the MC-44,
MC-44DM, MC-45, MC-45E, MC-45DM or MC-45DME
microphone.
Key or Electronic Keyer
Connect your key or electronic keyer to the KEY jack
on the rear panel. Use a 3.5mm mono (two conductor)
plug.
When using an electronic keyer, ensure the keyer
wiring polarity is correct.
Plug wiring
+7,
Contact current approximately 1 mA.
ay
iF-10D Interface Connector
The IF-10D Interface is an optional accessory used to
control the TS-50S transceiver from a computer.
The interface connector access hole is located in the
bottom cover of the transceiver. The hole is covered
by a circular protective patch that can be removed
easily by prying up on the patch’s edge with a
fingernail. Use care not to scratch the bottom cover if
any tool is used to remove the patch.
Removing the patch cover exposes the 6-pin male
connector (CN6} to which the IF-10D Interface can be
connected, Refer to the IF-10D Instruction Manual for
further information on using this interface.

- 2 CONTROLS AND CONNECTORS
FRONT PANEL CONTROLS
He TRANSCEIVER 18-39 Tio T] we [Leo] oe
@) POWER switch
Press momentarily to switch the transceiver on or off.
on on 2)
switch the transceiver on. Press the transceiver POWER switch to
control its power.
@ AT TUNE button
Press to activate the optional automatic antenna tuner
{if connected).
The transceiver automatically checks whether the
antenna tuner is connected when the power is
switched on. Therefore, be sure to connect or
disconnect the antenna tuner with the power off.
@ AIP/ATT button
Activates the AIP (Advanced Intercept Point) or ATT
(Attenuator) function, or both simultaneously. initially,
or after a partial or full CPU reset, AIP is off above 9.5
MHz and on below 9.5 MHz. However, the default for
ATT is off on all frequencies. With each press, the
setting changes in sequence.
The status displays at the LCD top left. (Nothing
displays when both functions are off.}
AIP helps eliminate radio interference, and moderates
receiver audio distortion which sometimes occurs
when receiving a strong signal.
Bate isear, tas tavtet ge ttte nae ete ee ee eae See aieh ey
selection. For PF (Programmable Function} key
information, refer to “Programmable Function Keys”
on pages 49 and 50,
@ NB button
Toggles the noise blanker.
The noise blanker attenuates pulse noise, such as that
caused by automobile ignitions or a sparking electric
motor.
For details, refer to “Noise Blanker” on page 43.
© PHONES jack
Insert the headphones plug into this jack. Any
headphones with an impedance of 4 to 32 ohms,
including stereo headphones, may be used. Use a
3.5mm mono (two conductor) or stereo (three
conductor) plug.
When using headphones, no sound will be heard from
the internal (or external) speaker.
Note: When connecting headphones, insert the piug straight
into the jack without applying sideways force that could damage
the jack.
12

2 CONTROLS AND CONNECTORS
ee aE ED
FRONT PANEL CONTROLS
we Tran
AIP ATT NE A VEO B SPLIT FAST SLOW FLOCK 4MHe
eee \
@® Ml connector
Connect the microphone securely.
@ AF control
Adjusts the receiver audio volume.
Note: The” beep” (audio annunciator) and sidetone levels are
not affected by the position of the AF control.
@ SQLcontrol
Turn to just eliminate the background noise when no
signal is present, or set and forget at full
counterclockwise rotation.
Threshold ge 9 sar
Noise is heard.
When the Squelch control is adjusted correctly, you
will hear sound only when the other station is
transmitting.
Noise disappears.
The point at which ambient noise just disappears (the
threshold) depends on the modulation mode and
frequency.
When receiving a weak signal, turn the contro! fully
counterclockwise.
Note: if the Squeich contro! is turned fully clockwise, you may
mistakenly
think
that
receiver
sensitivity
is
jow
or
the
transceiver
is
failing
to
output
sound.
Normally,
the
Squelch
control
should
be
set
at
the
fully
counterclockwise
position
uniess
in
the
FM
or
AM
mode.
13
@ RiT control
The Receiver Incremental Tuning control has two
functions:
@ Receiver frequency shift
@Scan speed change
(1) Receiver frequency shift
With the RIT on, the receiver frequency is
adjustable without affecting the transmitter
frequency. Turn the RIT contro! clockwise, and the
frequency will shift up.
For details, refer to “RIT Operation” on page 41.
(2) Scan speed change
Using the RIT control, the scan speed can be
changed during memory or program scan. Turn
the RIT control counterclockwise, and the scan
speed will increase. When exiting scan, center the
RIT control.
For details, refer to page 40.
Note: Remember that the RIT control affects both the receiver
frequency shift, and scan speed. If you switch the RIT on after
using the scan, the receiver frequency may be shifted,
IF SHIFT control
Allows shifting of an interfering signal outside the filter
pass band to reduce or eliminate the adjacent signal
interference.
Normally, set the control to the center (detent)
position.
For details, refer to “IF Shift” on page 43.
Note: The IF SHIFT contro! functions in the SSB and CW
modes, and does not function in the AM and FM modes.

@) RIT button
Toggles the Receive Incremental Tuning function. The
RIT control adjusts the receiver frequency without
affecting the transmitter frequency.
For RIT operation, refer to page 41.
@ SCAN button
This button provides three functions:
@ Memory scan start
@ Program scan start
@Scan stop
For Memory scan, refer to page 37. For Program scan,
refer to page 39.
(4) Memory scan start
Press the SCAN button in the Memory Channel
mode to scan the memory channels.
(2) Program scan start
Press the SCAN button in the VFO mode, and the
transceiver scans within the range you have preset
and stored in memory channel 99. If nothing has
been preset in memory channel 99, scan ascends
from the displayed frequency and scans the range
from 30 kHz to 29.999.9 MHz.
(3) Memory or program scan stop
Press the SCAN, CLR or microphone PTT button
to stop scan.
@ CLR button
The CLR button provides six functions, depending on
how you are operating:
@Memory or program scan stop
@ Memory Scroll mode exit
@ Memory channel lock-out
@ Memory channel clear
@ Menu Set-up exit
®@ Automatic Power Off reset
{1} Memory or program scan stop
Press the CLR button to stop Memory or Program
scan.
For Memory scan, refer to page 37. For Program
scan, refer to page 39.
{2) Memory Scrotl mode exit
Press the CLR button to exit the Memory Scroll
mode.
(3) Memory channe! lock-out
During Memory scan, loaded channels can be
skipped without erasing their contents. For details,
refer to page 38.
Note: Press the CLR button for more than 2 seconds to
erase the contents of a memory channel,
2 CONTROLS AND CONNECTORS
Re SSS a a TE
(4) Memory channel clear
A memory channel which contains unwanted data
can be cleared. Select the memory channel to be
cleared and press the CLR button for more than 2
seconds.
{f you have set Memory Protect 1 or 2 on, you
cannot clear memory channels. For details, refer
to page 34.
(5) Menu Set-up exit
Press the CLR button to exit from the Menu Set-
up mode, and return to the previous mode. For
Menu Set-up functions, refer to pages 46 and 47.
(6) Automatic Power Off reset
Press the CLR button to reset the Automatic
Power Off function. (If you do not operate any of
the transceiver's controls for approximately 180
minutes, the power is automatically switched off.)
For details, refer to page 42.
(4) M.IN button
This button provides these two functions:
@Memory channel storage
@Memory Scroll mode
{1} Memory channel storage
In the VFO or Memory Channel mode, stores the
currently displayed data (e.g. frequency,
modulation mode) into a memory channel. For
details, refer to page 31.
(2) Memory Scroll mode
Press the M.IN button to enter the Scroll mode,
and select a memory channel with the UP or
DOWN button.
For details, refer to page 33.
@ M>V button
Transfers the currently displayed memory contents
(frequency, modulation mode, etc.) to the VFO.
For details, reter to “MEMORY TRANSFER” on page
33.
@ M/V¥ button
Switches the transceiver between the VFO and
Memory Channel modes. In the VFO mode, either A
VFO or VFO B wiil appear at the display top center,
depending on the last VFO used. When the Memory
Channel mode is selected, M.CH appears at the
display left.
14

2 CONTROLS AND CONNECTORS
we BB
® @
@ ON AIR indicator MHz button
Lights when the transceiver is both in the transmit Toggles the function of the UP and DOWN buttons.
mode and tuned to a frequency within a transmit band. The “1 MHz” indicator appears at the top right of the
Transmission is only possible within specific bands of LCD to indicate status.
frequencies; however, reception is possible an all
frequencies tuned by the transceiver. If the
microphone PTT switch is pressed while tuned to a
frequency outside a transmit band, no signal can be
Switch the MHz button on:
In the VFO mode, to change the operating frequency
in 1 MHz steps (1 MHz on).
transmitted. The PTT must be released first, a In the Memory Channel mode, to select either from
frequency tuned within a transmit band, and the PTT only loaded memory channels (on), or from all memory
pressed again before transmission is possible. channels (off). For details, refer to “QUICK MEMORY
CHANNEL SELECT” on page 36.
eT In the Memory Scroll mode, to select only from empty
® AT TUNE indicator memory channels. For details, refer to “QUICK
Lights during preset or tuning of the optional automatic MEMORY CHANNEL SELECT” on page 36.
antenna tuner (AT-50 or AT-300). The LED goes off
when tuning is finished.
@) UP and DOWN buttons
@® F.LOCK button The UP and DOWN buttons have these five functions:
@ Amateur band select
Locks or unlocks the tuning control and these buttons: @ Frequency up or down in 1 MHz steps
@A/B ® Memory channel select
@A=B @ Menu setting select
@cLR ®@ Start and end frequency recall (when memory
@ DOWN channel 99 is selected)
ea (i) Amateur band select —
@SSB/CW button for rapid change.
@UP
{2)
Frequency
up
or
down
in
1
MHz
steps
@NB
In
the
VFO
mode,
with
the
1
MHz
indicator
on,
step the frequency up or down in 1 MHz steps.
Press the UP button to increase, or the DOWN
button to decrease the frequency. Hold down
either button for rapid change.
Press this button momentarily, and ’F.LOCK” appears
on the display top right, to indicate that lock is on.
Release lock by again pressing the button.
Note:
When
the
F.LOCK
button
is
depressed
for
mare
than
two
seconds,
the
transceiver
wil
enter
the
Menu
Set-up
mode.
Then
the
button
will
not
function
as
the
F.LOCK
button.
For
the
Menu
Set-up
mode,
refer
to
pages
46
and
47.
Note: The frequency step may be changed from 1 MHz
to 500 kHz. For details, refer to Menu Set-up (Menu B, No.
62) on page 47.
ats)

2 CONTROLS AND CONNECTORS
(3) Memory channel select
tn the Memory Channel or Memory Scroll mode,
select a memory channel with the UP or DOWN
button.
Press the UP button to select the next higher
memory channel, or the DOWN button for the next
lower memory channel.
Hold down either button for rapid change.
For details, refer to page 33.
{4) Menu setting select
Change the settings of Menu items using the UP
or DOWN button. With each button press, the
transceiver steps through the available selections.
For details, refer to Menu Set-up on pages 46 and
47,
Hold down either button for rapid change.
(5) Start and end frequency recall
in the Memory Channel mode, switch the display
between the program scan start and end
frequencies when memory channel 99 is selected.
For example, to display the scan end frequency,
press the F.LOCK button, then the UP button to
see the end frequency. Then, press the DOWN
button to switch to the start frequency. For details,
refer to page 38.
@ Tuning control
The tuning control provides two functions:
@ Frequency change
@ Menu number select
The turning torque can be adjusted by using the drag
control lever located at the bottom of the tuning
control. Move the lever to the left to decrease drag, or
to the right to increase drag.
(1) Frequency change
In the VFO mode, turn the tuning control to
change the operating frequency.
Fuzzy logic control
The frequency step changes automatically,
depending on how fast the control is turned. At the
slowest turning speed, the minimum step is 5 Hz.
The frequency step during rapid tuning can be up
to 200 Hz. In the FM mode, the range is from
50 Hz to 2 KHz.
(2) Menu number select
In the Menu Set-up mode, choose the menu
number with the tuning control.
For Menu Set-up, refer to pages 46 and 47.
@® A/Bbutton
Provides three functions, depending upon current
operation:
@A VFO or VFOB select
@ Transceiver Partial reset
@ Menu A or Menu B select
(For Menu Set-up, refer to pages 46 and 47.)
(1) AVFO or VFO B select
In the VFO mode, select either A or B as the
active VFO. Either A VFO or VFO B appears at
the display top center.
(2) Transceiver Partial reset
{f the transceiver will not respond to its contrals,
you may restore normal operation with the A/B
button.
With the power supply on, and the transceiver
power off, hold down the A/B button and switch
the transceiver power on.
Note: /f the transceiver stil! does not function properly,
do a full reset using the A=B button. Full reset is described
later.
For details, refer to “MICROPROCESSOR
RESET” on page 45.
SPLIT button
Permits use of the alternate (unused) VFO for the
transmit frequency.
Press this button, and the SPLIT indicator will appear
at the display top center to show that the alternate
VFO will be used for the transmit frequency.
With the SPLIT button on, switch the F.LOCK on to
activate the TF-SET function.
For split-frequency and TF-SET function details, refer
to page 30.
@® A=B button
This button provides two functions:
@ A=B (equalize)
®@ Transceiver Full reset
(1) A=B
In the VFO mode, copy the contents of the active
VFO to the inactive (alternate) VFO.
(2) Transceiver Full reset
All user specified data (memory channels and
Menu items) will be initialized (reset to the factory
defaults}.
16

2 CONTROLS AND CONNECTORS
A a eS ee ERD,
With the power supply on, and the transceiver
power off, hold down the A=B button, and switch
the transceiver power on. Refer to
“MICROPROCESSOR RESET” on page 45.
@) S$SB/CW button
Switches the transceiver between SSB and CW
modes, with a choice of two setup configurations.
Switch to other modulation modes only while in
receive mode.
By setting Menu A, No. 04, you can select either two-
step switching (the default, which is the conventional
SSB mode for the selected Amateur band, and CW) or
three-step switching (USB, LSB, and CW).
For details, refer to Menu Set-up (Menu A, No. 04) on
page 46.
A Two-step switching:
Press the SSB/CW button, and switch between
SSB and CW.
LS8/USB Auto Select
In the SSB mode, the transceiver automatically
selects USB or LSB, depending upon whether the
operating frequency is higher or lower than 9.5
MHz.
By convention, LSB is used for the 1.8 MHz
through 7 MHz bands, and USB is used for the
14 MHz and higher bands.
B Three-step switching:
Press the SSB/CW button, and step through USB,
LSB, and CW.
Note: in the Memory Channel mode, if the modulation made is
changed after selecting a channel, the change is temporary, and
the previous data in that channel remains unchanged. However, if
the mode is changed with memory channel 99 selected, the
previous data is overwritten in memory channel! 99.
@) FM/AM button
Toggles the transceiver between FM and AM. Switch
to other modulation modes only while in receive mode.
Note: In the Memory Channel mode, if the modulation mode
is changed after selecting a channel, the change is temporary,
and the previous data in that channel remains unchanged.
However, if the made is changed with memory channel 99
selected, the previous data is overwritten in memory channel 99.
W

2 CONTROLS AND CONNECTORS
REAR PANEL CONNECTORS
a
@
DP i
eee
n'y
@ ALC
Input for an external ALC signal from a linear amplifier.
Requires a standard audio (phono) plug.
@ RELAY
During transmit, used to key a linear amplifier by
providing a switch to ground from a built-in relay.
Requires a standard audio (phono) plug.
@ ANT
Connect to an external antenna, an antenna tuner, or a
dummy load. Use a 50 ohm HF antenna and feed
system, with a PL-259 (M type) coaxial connector.
@) KEY
Connect a key for CW operation. Use a 3.5 mm
diameter plug.
Turn the transceiver power off before inserting the
plug.
The transceiver will momentarily transmit if the key is
inserted with the power on.
® EXTSP
Connect an optional external speaker, using a 3.5 mm
diameter plug. This will disconnect the internal
speaker.
© Power Input DC 13.8 V
Connect to a 13.8 V DC supply to power the
transceiver. Use the supplied DC cable. This
transceiver draws less than 20.5 A (with an automatic
antenna tuner, less than 22.5 A) at maximum
transmitter output.
@ acc
Connect the optional automatic antenna tuner (AT-50
or AT-300). For details, refer to “AUTOMATIC
ANTENNA TUNER” on page 48.
®) GND
Connect a heavy gauge wire or copper strap between
the ground terminal and the nearest earth ground. Do
not connect the ground wire to either your house
electrical wiring, or gas or water pipes. A well
grounded transceiver will reduce the risk of
interference to television or broadcast radio receivers.
{t can also reduce receiver noise caused by static
discharges.
18

2 CONTROLS AND CONNECTORS
A a ED
DISPLAY
MENU AIP ATT NB A VFO 8 SPLIT FAST SLOW F.LOCK 1MHz
@ M.CH 7 — 7 a | —_ RIT: By
8 OEE. 6. 66 do Set
anleo Gauls amle » emle Li. kHz! dt. ay. kHz ac
9) 20 o
ae em TT TL use hale M.SCR_PRG_SCAN;——®
2 4 6 8 10 LS8/ USB CWNIFM AM} TONE
@ MENU @) IMHz
Appears when entering the MENU Set-up mode. Appears when the MHz function is on. Also appears in
the Memory Channe! made when selecting from only
programmed channels, or the Memory Scroll mode
@ AIP when choosing empty memory channels.
Appears when the Advanced Intercept Point function
is selected with the AIP/ATT button. @ M.CH
Appears after switching to the Memory CHannel mode
@ ATT using the M/V button.
Appears when the ATTenuator is selected with the
: rr ——
{
1
(ot deepen ecmmnppencpyremmmcmmmmmmmends
Ppears when t ie Noise Bilanker Is on. @ Dot
Appears when memory channels are locked-out. Refer
&) AVFOB to Memory Channel Lock-out, on page 38.
Either A VFO or VFO B appears, depending on which
VFO is selected with the A/B button. ® Digital frequency display
te Displays the operating frequency.
©) SPLIT
Appears when the SPLIT frequency function is on. @ RIT
Appears when Receiver Incremental Tuning is on.
@ FAST/SLOW
Either FAST or SLOW appears, depending on which +e .
AGC speed is selected. (No indicator appears in the @ Digital RIT display
FM mode.} Displays the amount of frequency shift with the RIT
on, the scan speed value during scan, or the one and
ten Hertz frequency digits when using the MC-47.
F.LOCK
Appears when the Frequency LOCK function is on.
19

2 CONTROLS AND CONNECTORS
=a Se ee ee ee
@® Meter
Appears as the Peak Hold S meter (St to 60 dB)
during reception, and as the Peak Hold RF meter (to
10) during transmission. The peak hoid characteristic
can be disabled by menu selection if required.
The RF meter also can deflect times four (4X) when
low power is selected. For details, refer to “Menu Set-
up” (Menu A, No.14 and Menu B, No.55) on pages 46
and 47.
@ BUSY
Appears when the squelch is opened, either by the
SQL control, or by a received signal.
@ AT
Appears when an optional Automatic Antenna Tuner
(AT-50 or AT-300} is connected. When using the AT-
50, this indicator appears when the AUTO/THRU
switch on the tuner is in the AUTO position.
@® M/L
Appears when Medium or Low transmitter output
power is selected using the Menu Set-up. No
designator indicates full power.
@ M.SCR/PRG/SCAN
Appears when the M.IN button is pressed to activate
the Memory SCRoll function. PRG appears after
selecting memory channel 99. PRG and SCAN both
appear during program scan. SCAN appears during
memory scan.
@® -N
Appears when an optional Narrow filter is selected
using the Menu Set-up. For details, refer to “IF Filter”
on page 43.
@ LSB/USB/CW/FM/AM
A modulation mode appears depending upon which
you select using the SSB/CW or FM/AM button.
@ TONE
Appears when either the burst, or continuous
subaudible TONE for 10 meter operation is on. Both
the FM mode and SPLIT transmit/receive operation
must be selected to use the tone encoder.
20