Kenwood TS-850S User manual

Button/Knob Initial Setting function Manual Reference
fcw means fully clockwise fccw means fully counterclockwise
POWER OFF out) check external power supply LSB+ON 35 4-10-15
DIM BRIGHT out) panel lights
VOX/MAN MAN out) sound-actuated transmission 10 4-10-11
FULL/SEMI CW break 10
AIP OFF reduces interference 10
HIGH BOOST OFF out) emphasizes high freq xmit audio 10
REC/SEND REC out) manual PTT 12
THRU/AUTO AUTO in) antenna tuner on 12, 30 4-9
AT TUNE in auto, forces antenna match 12
AGC SLOW how fast gain control reacts to changes 12,13,16,20
KEY SPEED CW keyer 13
CAR fccw carrier level during CW, AM and FSK 13
ATT OFF out) attenuates input signal 13
PROC PROC in) speech processor 13 4-3-2
MONI 12 o'clock monitor own xmit signal 12
MIC 12 o'clock microphone gain 13
PWR fcw transmit power for SSB 100 w 13
METER ALC then SWR check mic w/ALC; meter function in xmit 14
FILTER 8.83/455 IF filter selectivity 14
MODE: LSB 9.5 mHz USB auto switchover; check antenna 4-3-1
USB CW FM Discone/Discage) 4-10-2 audible CW
Quick Memo read/write to quick memory 15,40 4-11-13
VOICE optional voice synthesizer 15
NOTCH OFF fccw) reduce heterodyne or CW 12,33 4-10-9
SQL OFF fccw) reduce background noise 12
NB LEVEL OFF fccw) noise blanker 12,29
NB2 WIDTH OFF fccw) woodpecker noise 12,29
TF-SET check freq in split mode 15,32 4-10-8
A=B equalize VFO A and VFO B freq, mode 15,32
RX and TX split opn; VFO A active, B inactive 32 4-10-8
1MHZ U/D Up/Down switches 1 MHz or Ham bands only 15
F.LOCK locks freq, but not RIT 15
DOWN/UP change amateur band 4-10-5
RIT/XIT OFF out) incremental tuning 15
NOTCH OFF out) reduce heterodyne or CW 12,33 4-10-9
NB1 OFF out) pulse type noise auto ignition) 12,34 4-10-9
NB2 OFF out) long pulse woodpecker)
RIT/XIT zero/zero shift receiver w/o xmit OR xmit w/o receiver 1.2 kHz 15,34 4-10-3
TONE fcw receiver audio tone 15
AF/RF AF fccw, RF fcw Audio volume/HF amp gain 16
M.CH/VFO.CH Memory Channel 10 kHz during VFO operation 16,29
SLOPE TUNE HIGH fccw LOW fcw cuts high/low frequency interference 15,19,32 4-2 4-10-9
Discone/Discage Numeric Keypad: F NE tuning toggle; Ent freq Ent
1
2
3
4
1
2
3
4

TS-8508
HF TRANSCEIVER
INSTRUCTION MANUAL
TRANSCEPTOR HF
MANUAL DE INSTRUCCIONES
EMETTEUR/RECEPTEUR DECAMETRIQUE
MANUEL D'UTILISATION
KENWOOD CORPORATION
©PRINTED IN JAPAN B62-0062-20(E, M, P)(MC)
94112 11 10 9 8 7 6 5 4 3 2

Thank you for purchasing this newtransceiver.
IMPORTANT
Please read this Instruction Manual carefully before
placing the transceiver in service.
SAVE THIS INSTRUCTION MANUAL.
The following explicit definitions apply
in this manual:
Note : If disregarded, inconvenience only, no
risk of equipment damage or personal
injury.
Caution : Equipment damage may occur, but not
personal injury.
This Instruction Manual covers the TS-850S, with
and without AT (Automatic Antenna Tuner) unit.
When there are differences
in operation, separate
instructions will be given for each model.
Illustrations show the TS-850S with AT unit.
Notice to the user:
One or more of the following statements may be
applicable 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
15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference
in a residential
installation. This equipment generates, uses and
can 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 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:
2
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.
Consult the dealerfor technical assistance.
CONTENTS
1. BEFORE OPERATION .............................. 3
2. SPECIFICATIONS AND ACCESSORIES ............. 4
2-1. SPECIFICATIONS ............................... 4
2-2.
ACCESSORIES ................................. 6
3. INSTALLATION AND CONNECTION············'···· 7
3-1. INSTALLATION ................................. 7
3-2.
CONNECTION .................................. 7
4. OPERATION ...................................... 10
4-1. OPERATING CONTROLS ........................ 10
4-2. INITIAL SETTING .............................. 19
4-3. SSB OPERATION .............................. 20
4-4. CW OPERATION .............................. 22
4-5. FM OPERATION .............................. 25
4-6. AM
OPERATION .............................. 26
4-7.
FSK OPERATION .............................. 27
4-8. PACKET (AFSK) OPERATION ...................28
4-9. AUTO ANTENNA
TUNER OPERATION .......30
4-10. OTHER OPERATION ......................... 31
4-11. MEMORY ................................... 37
4-12. SCAN ....................................... 41
4-13. DRS FUNCTION .............................. 43
4-14. REPEATER OPERATION .......................45
4-15. OPERATION WITH A PERSONAL
COMPUTER ................................. 46
4-16. VOICE SYNTHESIZER .........................46
4-17. DIGITAL MODULATION FUNCTION ..........46
4-18. Transfer function when two TS-850S
transceivers are connected together........47
4-19. When used as the master machine for the
transverter
................................... 49
4-20. Remote control function ........................
51
5. BLOCK DIAGRAM AND CIRCUIT DIAGRAM .....52
5-1. BLOCK DIAGRAM ............................. 52
5-2. CIRCUIT DIAGRAM ............................ 53
6. MAINTENANCE AND ADJUSTMENTS.............. 62
6-1. GENERAL INFORMATION........................62
6-2.
SERVICE ...................................... 62
6-3. CLEANING ................................... 62
6-4. IN CASE OF DIFFICULTY ........................63
6-5.
ORDERING SPARE PARTS .......................64
6-6. ADJUSTMENTS
............................... 64
7. OPTIONAL ACCESSORIES ......................... 67
7-1. FILTER INSTALLATION ........................67
7-2. VS-2
VOICE SYNTHESIZER
INSTALLATION
............................... 67
7-3. DRU-2 DIGITAL RECORDING UNIT
INSTALLATION ............................... 68
7-4. S0-2
TCXO UNIT INSTALLATION ..............68
7-5.
DSP-100 DIGITAL SIGNAL PROCESSOR
CONNECTION ................................. 69
7-6. TL-922/922A
LINEAR AMPLIFIER
CONNECTION ................................. 69
7-7. SM-230 STATION MONITOR
INSTALLATION
............................... 69
7-8. AT
-850 AUTOMATIC ANTENNA TUNER
UNIT INSTALLATION .......................... 70
7-9. AT-300 AUTOMATIC ANTENNA TUNER
CONNECTION ............................... ..70
7-10. OTHER ACCESSORIES ........................ 71
8. REFERENCE ...................................... 73

1. IAIIIIIIGI BEFORE OPERATION
TO PREVENT ELECTRIC SHOCK, FIRE AND OTHER INJURY. PLEASE NOTE THE
FOLLOWING:
Do not place this unit, where it will be exposed to
directsunlight or close to heating appliances.
Do not place anything on top of the cabinet.
To ensure good ventilation, do not put anything
on
top of the cabinet and allow at least 15 em (6
inches) ofspace behind the unit.
Do not place the unit in areas of excessive dust,
high humidity or
on unstable surfaces.
To avoid risk of electric shock, under no
circumstances should the unit be opened:
Do not drop pieces of metal, needles, coins and
other electrically conductive materials into the unit.
CLEANING
1. Turn the power off, before cleaning the unit.
2. Do not use any type of abrasive pad, thinner,
benzine or any substances which may damage
the unit.
3. Wipe the front panel and other exterior surfaces
of the unit with a soft dry cloth or a soft cloth
lightly moistened with water.
3

2. SPECIFICATIONS AND ACCESSORIES
2·1. SPECIFICATIONS
Specifications Model TS-850S
Mode J3E(LSB,
USB), A1A(CW), A3E(AM), F3E(FM),
F1A(FSK)
Memory Channels 100
Antenna impedance 50 ohms
With AT
-850 AntennaTuner 20-150 ohms
Power requirement
12 to 16 VDC (13.8 VDC reference)
Grounding Negative
Receive mode with 2A
~
no input signal
Q) Current drain
c Transmit mode 20.5A
Q)
" Operating temperature
-1o·c to +5o·c (+14"F to + 122"F)
Frequency stability Less than
±10 PPM
Frequency accuracy Less than
±10 PPM
Dimensions [WXHXD]
339X135X375mm
(Projections included)
(1S.11/32" X5·5/16"X14-3/4")
With ATunit 10.9kg
(241bs)
Weight WithoutAT unit 9.4kg
(20.71bs)
160m band
1.8 to 2.0 MHz
BOrn band 3.5
to 4.0 MHz
40mband
7.0 to 7.3 MHz
30m band
10.1 to 10.15
MHz
Frequency range 20m band 14.0
to 14.35 MHz
17m band 18.068
to 18.168
MHz
15m band
21.0 to 21.45 MHz
12m band 24.89
to
24.99 MHz
10m band 28.0
to 29.7 MHz
(»
~
SSB,CW, MAX 100W**
·e
rn
FSK,FM MIN 20W
c
f!!
Output power
1-
MAX 40W
AM MIN 10W
SSB Balanced modulation
Modulation FM Reactance modulation
AM Lowlevel modulation
Spurious radiation Less than
-60dB
Carrier suppression (with 1.5kHz reference) More than 40dB
4

Specifications Model TS-850S
Unwanted sideband suppression (with 1.5kHz
reference) More than 40dB
..
Maximum frequency deviation (FM) Less than ±5kHz
Q)
...
-~
E
II)
Frequency response (-6dB) 400 to 2600Hz
c
as
10Hz step More than ±1.2kHz
..
1-
XIT variable range
20Hz step Morethan
±2.4kHz
Microphone impedance soon
Circuitry Triple conversion superheterodyne
Frequency range 100kHz to 30MHz
Intermediate frequency 1st :73.05MHz, 2nd :8.83MHz, 3rd : 455kHz
100kHz.....,500kHz Less than 0.2
J.l V
SSB,CW, 500kHz"'1.62MHz* Less than 4
J.l V
FSK
(at10d8 S l.62MHz.....,24.5MHz Less than 0.2
J.l V
+ N/N) 24.5MHz.....,30MHz Less than
0.13 J.lv
Sensitivity 100kHz.....,500kHz Less than 2
J.l V
AM 500kHz.....,1.62MHz* Less than 32
J.l V
(at10dB S l.62MHz.....,24.5MHz
+ N/N) Less than 2
J.l V
24.5MHz.....,30MHz Less than
1.3 J.l V
..
FM
Q) 28MHz.....,30MHz Less than 0.25
J.l V
> (at12dBSINAD)
·a;
u SSB,CW,FSK
-6dB:2.4kHz,
-60dB:3.8kHz
Q)
a:
Selectivity AM
-6dB:6kHz, -60d8:15kHz
FM
-6dB:12kHz,
-60dB:24kHz
Image ratio More than 80d8
1st IF rejection More than 80dB
Notch filter attenuation More than 40dB
10Hzstep More than ± 1.2kHz
RIT variable range
20Hz step More than
±2.4kHz
100kHz.....,500kHz Less than 2
J.l V
Squelch SSB,CW, 500kHz.....,1.62MHz* Less than 20
J.l V
FSK,AM
sensitivity *1.62MHz.....,30MHz Less than 2
J.l V
FM 28MHz.....,30MHz Less than 0.25 J.l V
Output 1.5W across 8 ohms load (10% distortion)
Output load impedance 8ohms
Notes
1. Circuit and ratings are subject to change without notice due to advancements in technology.
2. Remember to keep the transmit output power within the power limitations of your license.
3. •: The U.S.A. version is1.705 MHz.
4. •• : With auto antennatuner in "THRU" or bypass position.
5

2-2. ACCESSORIES
Unpack your TS-8505 carefully and confirm that it is supplied with the following accessories.
Dynamic microphone
...................................... T91-Q352-15 ....................... 1ea.
DIN plug (7-pin) .......................................... E07-Q751-05 ....................... 1ea.
DIN plug (13-pin) ......................................... E07 -1351-QS ....................... 1ea.
DC power cable assembly ................................. E30-3035-05 ....................... 1ea.
Calibration cable .......................................... E31-2154-Q5 ....................... 1ea.
Fuse (25A)
............................................... F51-0011-05 ....................... 1ea.
Fuse (3A)
................................................. FOS-3026-QS ....................... 1ea.
External control Instruction Manual .......................... 862-()()65-XX ...................... 1 copy
Instruction Manual ......................................... B62-o061-XX ...................... 1 copy
Warranty card (U.S.A., Canada and Europe version only) .................................... 1ea.
After unpacking
Shipping container:
Save the boxes and packing in the event your unit needs to be transported for remote operation, maintenance,
or service.
6

3. INSTALLAnON AND CONNECTION
3-1. INSTALLATION
.FRONT FEET
By extending the front feet, the front panel can be
elevated for operating convenience.
Turn the front foot leftand pull down.
Then turn right to lock.
3-2. CONNECTION
The TS-8505 requires more than 20.5 A at 13.8 VDC
when transmitting at full power. Use the P5-52 or PS-31
power supply for fixed station operation.
A. Rear Panel
To antenna
SP-31
Front feet extension
PS-31
or
PS-52
I
b
7

(1) Antenna
Caution
Protect your equipment -Use a
LIGHTNING
ARRESTER.
The type of antenna that is used will greatly affect
the performance of the transceiver. Use a properly
adjusted antenna, of good quality, to enable your
transceiver to perform at its best. The antenna input
impedance
is 50 ohms. Use 5Q-ohm coaxial cable
such as 5D-2V or RG-213 I U (RG-8A I U) for this
connection. If the antenna is far from the transceiver
the use of low loss coaxial cable, such as 5D-2V or
RG-213IU (RG-8AIU) are recommended. Match the
impedance of the coaxial cable and that of the
antenna so that the
SWR is less than 1.5 to 1. The
protection circuit
in the transceiver will activate ifthe
SWR is particularly poor (greater than 3 to 1). High
SWR value will cause transmitter output to drop, and
may lead to
TVI or BCI reports.
(2) Grounding
Caution
Never use a gas pipe or electrical conduit pipe.
Notes
1. A ground connection that is a 114 wavelength or
its multiple may provide a good
DC ground, but
it will not provide a good
RF ground.
2. A city water pipe cannot be used as a good
earth
in some cases.
Making a good earth connection is important for
preventing dangers such as electric shock and for
emitting a high quality signal with minimum spurious
radiation. Bury a commercially available ground
rod
or copper plate under the ground and connect it to
the
GND terminal. A thick wire, cut as short as
possible, should be used for the connection. To
make a good earth connection, connect the
GND
terminal to a grounded metal water pipe.
(3) External speaker
The TS-8505 includes a built-in speaker. If you
would like to use an external speaker, such as the
SP-31, it may be connected to the EXT SP jack on
the rear of the transceiver. The speaker may be any
good 8
ohm permanent magnet type speaker. The
diameter should
be at least 4 inches for good audio
quality. If you plan on using a speaker other than the
SP-31 it should be equipped with a miniature phone
jack plug. (diameter 3.5
mm)
8
(4) Key connection
Your key should be connected as illustrated
in the
figure below. When using an electronic keyer, make
sure that polarity is set for positive. Always use
shielded line fr6m the key to transceiver. (diameter
6.0mm)
•To use external straight key
or
Note
+SV, Contact
+ Current about1
I I :::=>
rnA
f f
Ground Not used + +SV, Contact
+ Current about1
~-----•L-===> rnA
t
Ground +
Check the polarity of the plug when you use
an
electronic keyer.
Please refer to Section 4-4.

B. Front Panel
·o·~--:- ··o·~·-:;: ..
• 0 ' •
. '' ...
-•nffe- OIODII! liD - - - -
A·-·-·- ·*· .. -o· . EEJ~GJ ~~= Q ~~· .. o/,;; .... ~ o~-~
~ \J) . . ............ ~ Q I.- { ... ,~ . .
·::· C!J t=l ¢.~ . . . IE::] - - . •
~
~ ·---· ..... _ : :· .. ~··· -- ....... ..~"':'-
... o· · o· · .. .... to·~
~ ' . ' . "' • ... c:::l GJGJ ' (\j f}:
~~ ..... tEl ~ . '
Headphone
Microphone
(1) Headphones
(2) Microphones
Any low-impedance
(4-16 ohms) headphone may be
used with the transceiver. Connect the headphones
to the front panel
PHONES jack. (diameter 6.0 mm).
The optional HS-5 or HS-6 headphones are best
suited for use with the transceiver. Stereo type
headphones can also
be used.
Any microphone with an impedance
to 6000 may be
used with this transceiver. The
KENWOOD
microphones MC-435 (handheld), MC-60A, MC-80,
MC-85 (table-top type) are recom-mended.
9

4. OPERAnON
4-1. OPERATING CONTROLS
4-1-1. Front Panel
p 10
POWER
p 11
Note
When switching
on the power after a prrnonged
period of non-use, several seconds may pass before
indicators appear
on the display. This is normal
operation.
p 12
IIOTCH .... SOL
Itt lfVEl ..... =~~TH
[
~
0 0
ON o~
C:J
~
OFF .C.
~~~I.IIIIIM.CHPRGSCANIII.SCAPifCMSPliTF.LOCIIITXIT
~
.... ~
I J I ' I II oil ... C!!:Ju:E) · 0 . . . .
~cro
........ ~ ~
...
• .. .. .. .. .. • [I!!]~ s. s. 88 BBBB8 s. s. s
(!!]([!] o o o o o o o •Hz -kHZ
D D % %
..:.: . Ll •• I
••
oo. [::i!!]~
"'
USI CW-A FU-A FM-H AM
"'"'
FUIIE TON<
AIIMIJl.HIIII
or• .c.
.IICIIMIXID
Iff UA.IC£1VU TS-1505 •...
.. _
...
. .. .OTCH
"' "'
ltOTCII .. ..
A IEC.tiEIIO-
""'
lEt' Sftf:EO -e-CAR
FILTER
MODE
11::1 11::1 11::1 11::1 11::1
FUNCTION
![
:H
:::J[
][ ][
J
c::l
8 II!!) t::EJ
~
lrF-snl [EJ
.., .... ltF
....
I
·w o
@0
0
Jl. Tc::r-
0
...
AX
"
. .
,_ --~
PLAY·I PAY·I PLAT·I
~o
a I ' .
=J
. .
-
PHONES
¢.j:J
HC·I He-
.....
i~~- _Jl
---
©
[~J[==J
.
•• ••
=J
-
.... .... ...
"'~l~~ow
PROC -o- MOll I MIC .... ItWR
T
••
••
-J
III.CH/YFO.CH
""
.. o.
~ .... _ -0
~ol
D
Cll
••
I E•T
1-:;-1 f~c1i
[ 0
I I
..
ON
OFF
P.12
..-. VOX ..-.FULL
G) POWER switch
Ill. Ul
..... ,I~
P.13
HIGH
IOOST.-.
Press to turn the power ON or OFF.
@ DIM (Dimmer) switch
I YO leU
Selects the intensity of both the digital display and
the meter illumination, bright or dim.
@VOX/MAN switch
VOX (Voice Operated Switch) operation is possible
in SSB, AM or FM operations. Break-in operation is
possible in CW operation. To activate the VOX
circuitry place the VOX switch ON(--).
10
-
~~
...... 3.~
/ P.151 J
P.14
@FULL/SEMI (Break-in) switch
This switch affects the transmitI receive recovery
time.
In the SEMI position the transceiver will key
when the key
is depressed and remain in the
transmit position until a preset delay has been
reached.
In the FULL position the transceiver will
return to receive as soon as the key is released,
thus allowing you to copy incoming signals between
characters.
® AlP (Advanced Intercept Point) switch
Use AlP when good signal reception can not be
obtained. When switched on, it reduces interference
from strong signals.
When the frequency falls below 9.5 MHz,
initialization takes place automatically.
Note
When AlP is
on, the sensitivity of the receiver is
reduced about 10 dB.
@HIGH BOOST switch
The high-frequencies
of the transmit audio signal are
emphasized. Intelligibility may be improved,
depending
on the characteristics of the microphone
and atmospheric conditions.

(j) Meter
During receive the meter
is used as an S-meter.
During transmit the meter is used as a
POWER
meter, and is controlled by the METER key, and
provides either
VSWR, COMP level or ALC level
readings.
The meter can
be used as a peak hold meter.
(Please refer to Section
4-10-15.)
Note
One or two segments of the S meter may light
when there is no signal, due to atmospheric noise.
® Filter indicators
Indicates which filters have been selected.
® M.CH (Memory channel) display
Turns
ON during a Memory Channel operation.
PRG (Program) display
Lights during selection or operation on memory
channels 90to99.
SCAN display
Turns
ON during scanning.
M.SCR (Memory scroll) display
Lights when the
M.IN key is pressed. When the
memory scroll function is active you can review
the contents
of the memory channels without a
loss
of the incoming receive frequency.
PITCH display
Lights when the
PITCH function is ON.
SPLIT display
Turns
ON during split operation.
F.LOCK display
Lights when the F.LOCK
key is ON.
RITdisplay
Turns ON when using RIT.
XIT display
Turns
ON when using XIT.
@Frequency display
Indicates the operating frequency. The
10 Hz digit
may be suppressed. (Please refer
to Section 4-10-
15.)
@Memory Channel number display
Memory Channel Number is displayed.
® Memory Channel Lockout Indicator
The • display indicates the Memory Channel
currently in the display will be skipped during
Memory Channel scan.
@ON AIR indicator
Lights during transmit.
@AT TUNE (Antenna Tuner) indicator
Lights
to show that the automatic antenna tuner is in
operation. Do not attempt to operate further until it
goes off.
@AIP(Advanced Intercept Point) indicator
Lights when the AlP switch is
ON.
@MHz indicator
Lights when the1MHz key is
ON.
®NOTCH indicator
Lights when the
NOTCH switch is ON.
@LSB indicator
Indicates the LSB has been selected.
USB indicator
Indicates the
USB has been selected.
CW indicator
Indicates the
CW has been selected.
CW-R indicator
Indicates the CW-R(Reverse) has been selected.
FSK indicator
Indicates the
FSK has been selected.
FSK-R indicator
Indicates the FSK-R(Reverse) has been
selected.
FM indicator
Indicates the
FM has been selected.
FM-N indicator
Indicates the FM-N(narrow) has been selected.
AM indicator
Indicates the AM has been selected.
TUNE indicator
Indicates the TUNE has been selected.
FINE indicator
Indicates the
FINE tuning has been selected.
TONE indicator
Indicatesthe TONE function has been selected.
11

@ AIT IX IT frequency display
Shows the amount of AIT IXIT offset to the nearest
10 Hz. Minus "-" appears in the display when the
RIT I XIT offset is below the transmit I receive
frequency.
Shows the scan speed during scanning.
®NOTCH control
The NOTCH function is used to reduce or eliminate
heterodyne, or CW type signals. The NOTCH filter
will not be effective against
SSB, AM or FM type
signals.
@ SQL (Squelch) control
This control is used to eliminate atmospheric noise,
and receiver static noise during no signal periods.
Slowly rotate the control clockwise to the point
where the ambient noise just disappears, and the
speaker shuts off. This point is known as the
squelch threshold point. Now you will only hear
output from the speaker when an incoming signal
is
present. For weak signal reception this control
should be fully counterclockwise.
@ NB LEVEL control
Controls the noise blanker operating level.
Use only the minimum level necessary.
@NB2 WIDTH control
This control varies the width of the blanking pulse of
NB2.
Notes
1. The NB2 control only works on woodpecker
type noise.
2. If the control is turned too far, the received
signal may be distorted. Set the control for the
best receive signal.
@RITswitch
Press to turn the RIT ON or OFF.
@XITswitch
Press to turn the XIT ON or OFF.
@NOTCH switch
When this switch is
ON, the notch filter is activated.
12
Note
This switch
is disabled during FM operation.
@NB1 switch
For pulse type noise, such as generated by
automotive ignition systems, turn the
NB 1 switch
ON.
This switch will not help to eliminate atmospheric or
line noises, only pulse type noise.
@NB2switch
Noise blanker 2 is used for long duration pulse
noise, like the "woodpecker". To reduce
"woodpecker" radar noise interference, set switch
NB 2 to the ON position (NB 2's effectiveness
depends
on the specific type of interference). If you
use
NB 2 for short duration pulse noise, the receive
signal may become distorted, making it difficult to
hear.
Unfortunately no noise blanker can remove all
different types of interference; but the two noise
blankers that have been provided in the TS-850 are
effective
in most cases.
If there is no "woodpecker" present, the switch
should be in the OFF position.
@RECISEND switch
This switch is used when you want to manually
control transmit or receive.
REC : Places the transceiver into receive.
SEND :Places the transceiver into transmit.
@THRUIAUTO switch
THRU : The auto antenna tuner is not used in
transmit.
AUTO : The auto antenna tuner is used in transmit.
@AT TUNE switch
When this switch
is tuned ON and the THRUIAUTO
switch
is placed in the AUTO position, the automatic

tuner will be engaged and the tuner will try to match
the antenna.
@PHONES jack
Output terminal for headphones.
@MICjack
Microphone connection.
MIC connector (Front view)
@AGCswitch
This switch selects the operating time constant of
the
AGC (Automatic Gain Control) circuit. When the
AGC switch is set to SLOW, the receiver gain and
S-meter readings will react slowly
to large input
changes, and when set to
FAST, the receiver gain
and S-meter will react quickly to changes
in the
input signal level.
The normal position when using all modes is the
SLOW position. When working any of the following
you might wish to use the FAST position.
• When tuning rapidly, use the FAST position.
• When receiving weak signals.
• When a high-speed
CW signal is being received.
Note
This switch is disabled during
FM operation.
@KEY SPEED control
This controls the speed of the electronic keyer. Turn
the knob clockwise to increase speed.
@CAR (Carrier level) control
Used to adjust carrier level during CW, AM and FSK.
®6dB ATT (Attenuator) switch
The incoming receive signal level is attenuated by
approximately 6 dBwhen this switch is activated.
@ 12dB ATT (Attenuator) switch
The incoming receive signal level is attenuated by
approximately 12 dB when this switch is activated.
The incoming receive signal level is attenuated by
approximately 18 dB when both the 6 dB switch and
12 dB switch are activated.
This control is also useful when a strong signal is
near your desired signal; while some loss will occur
to the desired signal, as well as the undesired signal,
the use of the attenuator will sometimes allow you to
understand what is being received.
For normal
receiver performance, this switch should be in the
OFF position.
@ PROC (Processor) switch
Effective transmit power output will increase when
the
PROC switch is turned ON during SSB mode
operations.
@ PROC (Processor) control
Adjust the PROC control while speaking into the
microphone in a normal tone of voice, for a peak
COMP scale reading of no more than 10 dB. Do not
overdrive the
COMPRESSOR.
Over driving the compressor will deteriorate voice
quality, increase transmitter noise level, and in
general make copying your signal more difficult.
@ MONI (Monitor) control
This controls the volume of the transmit monitor.
This control
is operational in the SSB and FSK
mode.
@ MONI (Monitor) switch
Allows monitoring ofyour transmit signal.
This control is operational in the SSB and FSK
mode.
@ MIC gain control
Microphone gain can be adjusted during SSB and
AM operations. Gain is increased by turning the
control clockwise.
@ PWR (Power) control
Power can be controlled in all modes. Power is
increased by turning the control clockwise.
Keep the transmit power within the output power
limits of your license.
@METER key
The meter function can be changed as follows
during transmission.
13

C
____. ALC _____. COMP
(The PROC switch
is ON when
the SSB mode.)
No indicator._ ____ __,
SWR Indicates voltage standing wave ratio
(VSWR).
ALC Indicates internal ALC voltage, or the ALC
voltage fed back from a linear amplifier
connected to this transceiver.
COMP: Indicates compression level during speech
processor operations.
Do not exceed 10 dB
of compression. The
PROC switch is ON
when the SSB mode.
@8.83 FIL TEA key
Selects the desired 8.83MHz filter regardless of
mode.
@455 FIL TEA key
Selects the desired 455kHz filter regardless of
mode.
@Numeric keypad
Consists of a series of switches which will be used
to set, turn
on and/ or turn offfunctions.
When used in conjunction with the ENT key, the
keypad
is used to directlyenter a frequency.
When used
in conjunction with the M.IN key, the
keypad
is used to enter data into a memory channel.
PLAY, REC key
Used to record and play voice or CW messages
for transmission. (The optional
DRU-2 digital
recording unit is required.)
TUNE key
Sets the transmit power to half the rated power
regardless of the position of the PWR control.
Outputs a zero beat in CW receive mode. This
key
is useful when tuning a linear amplifier.
FINE key
Makes one turn of the tuning knob equal.1 kHz
(1
Hz step) to facilitate precise tuning. When the key
is pressed again, normal tuning returns.
REV key
The
BFO uses USB for normal CW reception.
With this key, reception becomes possible
on
LSB. The BFO uses LSB for normal FSK
operation. With this key, reception becomes
possible on USB. By pressing this key, reverse
shift
is also used for transmission.
PITCH key
Press to turn the
PITCH function ON or OFF.
@ CLR (Clear) key
Used when reentering memory channel data, erasing
a memory channel, clearing scan, or when
specifying the channels that will be skipped during
scan operations.
@ ENT (Enter) key
Used to directly enter a frequency from the numeric
keypad.
14
@M.INkey
Used to enter data into a memory channel.
@M .... VFOkey
Used to transfer a frequency from memory to the
VFO.
@SCAN key
Pressing during
VFO operation will initiate program
scan, and pressing during memory operation will
initiate memory scan.
@MODE keys
These keys are used to select the desired mode of
operation. When a
MODE key is pressed the first
character of that mode will
be sounded in Morse
code thru the internal speaker.
LSB/USB key
Press the LSB/USB key to alternate between
LSB
and USB mode.
CW/FSKkey
Press the
CW /FSK key to alternate between CW
(R) and FSK(R) mode.
FM/AM key
Press the
FM/ AM key to alternate between FM(N)
and AM mode.
®TUNING knob (VFO)
Rotate the knob to select the desired frequency.
Fast tuning
is possible by rotating the knob rapidly.
The dial drag is adjustable by holding the outside
knob and turning the inside knob clockwise to
increase drag, and counterclockwise to decrease
drag.

@FUNCTION keys
TF-SETkey
Depressing this key will allow you to rapidly set
or
check the transmit frequency, during SPLIT
operations, without the need of actually
transmitting.
A=B key
Equalizes the frequencies, modes and filter
selection of
VFO A and VFO B.
A(VFOA)key
RX : Press this key to receive signals on VFO A.
TX : Press this keyto transmit signals on VFO A.
B(VFOB)key
RX : Press this key to receive signals on VFO B.
TX : Press this key to transmit signals on VFO B.
M.CH (Memory Channel) key
RX : Press this key to receive signals on the
memory channel.
TX: Press this key to transmit signals on the
memory channel.
Note
When just an
RX key (VFO A, VFO B, or M.CH.) is
pressed, the same
VFO or memory channel is
used for both reception and transmission. For split
operation, select VFO A or VFO B for reception,
and, for transmission, either select the other
VFO
or select TX M.CH.
1MHz key
This key is used to determine if the
UP /DOWN
switches will function in 1 MHz steps or only
thru the amateur bands. When the 1 MHz step
position is selected, the MHz indicator will light.
F.LOCKkey
The selected dial frequency and mode are
locked.
Note
When the F.LOCK key is on the TF-SET,
FILTER, METER, VOICE keys, AlP, RIT, XIT
switches and RIT/XIT control are still active.
@QUICK MEMO M.IN key
This keywrites data to the
quick memory.
@)QUICK MEMO MR key
This key recalls the
quick memory.
@)VOICE key
Press this key to activate the optional voice
synthesizer unit
VS-2.
@)UP /DOWN switch
Pressing the
UP switch increases the frequency,
and pressing the
DOWN switch decreases it.
When the function setting
at power on is on, this
switch changes the setting.
AIT/XIT--@- TONE
~
~·
N. CH/VFO. CH
@) RIT /XITcontrol
RIT (Receiver Incremental Tuning)
The RIT control allows shifting the receiver
frequency. Use
of the RIT control will not affect
the transmit frequency.
When the RIT switch is
ON, the RIT indicator
will light, and the receive frequency can be
adjusted by using the
RIT control.
Note
When the RIT is
ON the transmit frequency
may be different from the receive frequency.
For normal operation leave the
RIT switch
OFF. It should be used only when necessary.
The scan speed can
be changed during scanning
with the
RIT control.
XIT (Transmitter Incremental Tuning)
XIT is very similar to RIT. XIT is only active in
the transmit mode. By using the XIT function it is
possible to offset the transmit frequency without
the normal loss of receiver audio that is
experienced when using the SPLIT function.
The RIT I
XIT offset can be preset, without
affecting the actual operating frequency by
turning
OFF the RIT /XIT and using the RIT/XIT
display to determine the offset.
This is useful when working a
OX station who is
"split" within the XIT range.
The
RIT I XIT step size is either 10 Hz or 20 Hz.
Please refer to Section 4-10-15 for information on
howtoselectthe desired step size.
®TONE control
Turn the control to increase or decrease the receiver
audio tone.
15

The standard position is with the control turned fully
clockwise. As the control is turned counterclockwise,
high frequencies are cut.
@) M.CH/VFO CH control
This control is used to select the desired memory
channel during Memory Channel Operation.
This control
is also used to change the frequency in
10kHzsteps during VFO operations.
The control
is also used to select the desired power
on function you wish to change. See section 4-10-
15.
@ AF gain control
Turn the knob to increase or decrease the volume.
Clockwise rotation increases the volume and
counterclockwise rotation decreases the
volume.
Note
The output level
of the "Beep" and "Sidetone" are
not affected by adjusting of the AF gain control.
@ RF gain control
This control adjusts the gain of the receiver high-
frequency amplifier section.
For normal receiver performance, and maximum
gain, this control should be all the way to the right. If
you are having trouble copying the desired signal
make a note of the stations peak S-meter reading.
Then, adjust the
RF gain control left, so that the
meter needle
is stationary at this level. Now, all
signals that were less than the desired signal will be
attenuated, such as static noise, etc., making
reception easier.
If the incoming signal pegs the S-meter you can also
reduce the receiver gain by moving the
RF gain
control to the left. The 8-meter pointer will always
advance up-scale as the
RF gain control is moved,
to indicate that the gain has been reduced.
Simultaneous use of the
RF gain control and AGC
switch
If a strong signal (such as a local station) appears in
the vicinity of the intended receive signal, the S-
meter may show unusual deflection due to the AGC
voltage developed from the strong disturbing signal.
If this occurs, move the
RF gain control to the left so
the meter pointer remains at about the original
deflection peak and turn the
AGC switch to the
FAST position. This will reduce the unwanted AGC
voltage and permit clear reception.
Note
This control is disabled during FM operation.
@SLOPE TUNE HIGH CUT control
Adjust the
HIGH CUT control counterclockwise, and
interference from signals higher than the operating
frequency will be reduced. The high-frequency
components of the resulting receiver audio will also
be reduced.
Note
This control
is disabled during FM operation.
16
®SLOPE TUNE LOW CUT control
Adjust the LOW
CUT control clockwise, and
interference from signals lower than the operating
frequency will be reduced. As with the HIGH CUT
control, use of the LOW CUT control will also affect
the audio frequency passband.
In this case the low
frequency components of the audio signal will be
reduced.
Note
This control is disabled during FM operation.
•Microphone
CD® UP /DWN(Up/Down) switches
These switches are used to step the
VFO frequency
or memory channel
up and down. The frequency will
change continuously if the switches are pressed and
held.
@PTT (Push ToTalk) switch
The transceiver will be placed into Transmit
whenever this switch
is pressed.

4-1-2. Rear Panel
G) GND (Ground) terminal
To prevent e.lectric shock, as well as
RFI and BCI,
connect the transceiver to a good earth ground.
@ANT (Antenna) connector
This connector should be attached to a suitable
antenna for transmitting and receiving. The antenna
cable should be 50-ohm coax, terminated with a PL-
259 connector.
@FUSE
Power fuse for the ACC 4 connector.
@DC power connector
This
is used to connect the DC power supply.
® ACC 4 connector
The optional AT-300 may be connected here.
® ACC 1connector
The optional
DSP-100 or the optional IF-232C is
connected here.
(j) RITY terminal
For connection to an RITY interface unit. (direct
FSK keying) The terminal is equipped the short pin
plug for the factory.
® DSP 1terminal
The optional
DSP-100 is connected here.
® DSP 2 terminal
The optional
DSP-100 is connected here.
@ DSP 3 connector
The optional
DSP-100 is connected here.
@ ACC 3 terminal
This
is used to connect the remote controller.
@SW1 switch
This transceiver has a cover
on the back to protect
against misoperation. To connect the external
antenna tuner to this unit, remove the cover and
slide switch SW1 to EXT. The built-in antenna tuner
will then not operate.
@ LINEAR AMP switch
Activates the internal keying relay for linear amplifier
control.
® REMOTE connector
This connector
is used when a linear amplifier is
used.
R.r~-----------,
Control relay T~~------.
Speaker output
View from cord
7~6.
3 I
5 4
2
@ IF OUT 1terminal
From standby switch
(PTT circuit for foot switch)
+ 12 VDC ON transmit
max.
10 mA
ihis terminal is for the band scope of the station
monitor.
IF 1 is for connection to the SM-230 for Pan Display.
(8.83MHz)
17