Kenwood SG-5110 User manual

© PRINTED IN JAPAN B63-0080-00(N)
36403
INSTRUCTIONMANUAL
KENWOODCORPORATION
KENWOOD
FM-STEREO/FM-AMSIGNALGENERATOR
SG-5110

CONTENTS
1. OUTLINE and FEATURES .................................. 5
2. SPECIFICATIONS<•» — —......................................
6
2-1 CARRIER FREQUENCY ................................................ 6
2-2 RF OUTPUT ........................................................
6
2-3 FM MODULATION .................................................... 6
2-4 AM MODULATION .................................................... 7
2-5 STEREO SIGNAL ................................................... 7
2- 6 ADDITIONAL ....................................................... 8
3 . PANEL EXPLANATION .......................................... 9
3- 1 FRONT PANEL 9
3- 2 REAR PANEL 1 7
4 . OPERATING PROCEDURES ........................................ 1 9
4- 1 FREQUENCY SETTING ............................................ 19
4-1-1NORMAL SETTING ............................................... 19
4-1-2DIRECTSETTING ............................................... 19
4-1-3STEPSETTING 2 1
4-2 OUTPUT LEVEL SETTING • 22
4-2-1 NORMAL SETTING ............................................... 22
4-2-2DIRECTSETTING ............................................... 23
4-2-3DISPLAY UNIT CHANGE .......................................... 23
4-2-4STEPSETTING •••• 2 4
4-2-5 LEVEL PRESET FUNCTION 24
4-3 MODULATION SETTING • ••• 25
4-3-1 FM MODULATION SETTING 25
4-3-1-1 Normal Setting • • 26
4~3"~1~2 DirectSetting ••••••••••••••••••••••••••••••••••••••••••• 23
4—3—1—3 Preset Setting ••••••••••••••••••••••••••••••••••••••••••• 27
3

4-3-2 FMSTEREO MODULATION SETTING ................................. 28
4-3-2-1 Normal Setting ................................v......... 2 8
4-3-2-2 DirectSetting ......*«.«....<...«........................ 2 8
4-3-2-3 PresetSetting ........................................... 2 9
4-3-3PILOTLEVELSETTING ......................... • 2 9
4-3-4 AM MODULATION SETTING — — — — ............... 2 9
4-3-4-1 Normal Setting ........................................... 3 0
4—3 ~ 4~2 DirectSotting ®®©o©©©©o»»fl>o©©ooe©©©Qooeoo©oa©o©®ooo©©®o©o@ 2 Q
4-3-4-3 PresetSetting ........................................... 3 0
4-4 ADDRESS SETTING ............................. 3 0
4-4-1 NORMAL SETTING ............................................... 3 0
4-4-2DIRECTSETTING .................... 3 1
4-5 ADDRESSMEMORIZATION ............................................. 3 2
4-6 ADDITIONALFUNCTIONS ............................................. 3 2
4-6-1 AFFUNCTIONS ................ 3 2
4-6-2 ADDRESSROTATIONFUNCTION .................................... 3 3
4-6-3 SECOND FUNCTIONS ............................................. 3 4
4-6-4SPECIAL FUNCTIONOFSTOKEY .................................. 3 4
4-6-5 BACK-UPFUNCTION ............................................. 3 5
5 . MAINTENANCE .................................................. 3 6
5- 1 FUSE REPLACEMENT ................................................. 3 6
5-2 VOLTAGE CHANGE ................................................... 3 7
4

1. OUTLINE and FEATURES
The SG-5110 IsanFM-STEREO, FM-AM standard signal generator that covers the
frequency band from 100kHz to110MHz.The output level canbesetinIdB
steps from -20dB# to lOOdB/i.
Al1 set values are easily input by using numerickeys orthe rotary encoder.
The set contents canbe memorized inupto100 addresses.
Control is alsopossible via the RT-100 remote controller(optional) and GP-IB
(factory opt ion)allowing the unit tobe used effectively for bothdesign
andmanufacturingpurposes.
_ Covers the frequencyrangefrom 100kHz to110MHzina superb stable and
accurate way.
Superb settingresolution of 100Hz upto 34. 9999MHzand1 kHzinthe range
above 35MHz.
~_ Contents of frequency,modulat ion, output level sett ings canbe stored
in upto100 addressesmakingiteasy to recal1 the sett ings when required.
~> AF functionallows one-touch deviation measuring.
Setting is faci1itated by either direct settingusing numerickeys orby
normal settingusingcursor and rotary encoder.
1
~1 Selectable modulation signal. Select between internalosci1lator or
externally input signal.
1 1
Operat ional easesecured by funct ion to presetfrequently usedoutput
levels and second functionselectable,preset standard modulation.
0Provided the opt ional RT-100 remote controller is connected, contro 1
from a distance becomes possible.
1Designedforautomat ion of measuringviaGP-IB function (factory option).
5

2, SPECIFICATIONS
2~1CARRIER FREQUENCY
Possible frequency range : 100kHz — 110MHz
Display : 7 digits
Resolution : 100Hz (100kHz-34. 9999MHz)
1kHz (above 35MHz)
Reference signal Accuracy : ±5x 1(T5
2-2 RFOUTPUT
Output level range : -20dB//~100dB//openended
-133dBm~-13dBm terminal
EMF ABJU<—*dBm selectorswitch : Yes
Display : 3 digits
Resolution : ldB
Reference level accuracy : ±ldB (atlOOdB// output)
Attenuator accuracy : ±IdB (OdB//—lOOdB//)
±2dB (-20dB#M)dB//)
Signal source impedance : 50Q, VSWR 1. 2 or less
Spurious output : below-30dBc or less
Residual FM component : 70dB or more
(Deviation: ratio for75kHz,
Band: 50Hz~15kHz)
de-emphasis 50/isRF:76MHz~110MHz
Residual AM component : 50dB or more
(Modulation: 30X,Band:50Hz~15kHz)
RF: 30MHz~100MHz
However, the harmonic components of
the 80MHz bandis excluded.
2-3 FMMODULATION
Frequency deviation : 0-100kHz(RF: lMHz~110MHz)
RF frequencyx10% (RF: less than 1MHz)
Display : 3 digits
6

7
Resolution : 0, 1kHz
Accuracy : Maximum display value±10X
(RF: lMHz~110MHz9 AF:1kHz)
Internal modulationfrequency : 400Hz, lkHz±3X
Distortion factor : 0.05% or less (RF: 10.7MHz,76MHz~ 110MHz)
/Demodulat ionrange: 50Hz — 15kHz \
AF: 1 kHz,
\75 kHz deviation: de-emphasis 50/W
External modulation
Frequency characteristic : 20Hz~100kHz±ldB (1kHz reference)
(RF: 10. 7MHz, 76MHz~ 110MHz)
Input impedance : Approximately lOkQ unbalanced
Inputvoltage : Approximately 3Vp-p
2-4 AlMODULATION
Modulationpercentage : 0~60%
Display : 3 digits
Resolution : 0.IX
Accuracy : < (display value ±5) % (RF: 100kHz~30MHz)
Internal modulationfrequency : 400Hz, 1 kHz±3X
External modulationfrequency : 50Hz~10kHz =±= IdB(1kHz reference)
Distortion factor : 0. 5Xor less (RF: 200kHz~30MHz)
/Demodulation range: 50Hz~ 15kHz \
VAF: 1kHz Modulationpercentage: 30%/
However, the harmonic components of
the 80MHz band isexcluded.
2-5 STEREO SIGNAL
Separation : Approx. 55dB (400Hz—1kHz)
Pilot signal frequency : 19kHz±2Hz
Internal modulationfrequency : 400Hz, lkHz±3X
Enternal modulat ionfrequency : 50Hz~15kHz=±=IdB(1kHz reference)
(RF: 10.7MHz?76MHz~ 110MHz)

2-6 ADDITIONAL
Preset key settings : Stereomodulation
percentage:30%, 100%
AM: 30%
FM: 3.5kHz, 22.5kHz, 75kHz
OUTPUT level : 4 levels
Memory: 100 points
Optional functions : Remote control
Dimensions : 100 (H) x 430(W)x 380 (D) mm
Weight : Approximately: 12kg
Operatingenvironment : Ambient temperature:10~35°C
Relative humidity : below 85V
Voltage(AC) : 100V/120V/220V/240V±10X (MAX. 250V AC)
50/60Hz
Power consumption : Approximately 28W
Supplied accessories : Power cord1, instruct ion manual 1,
Output cable 1, Replacement fuse 1
8

3. PANEL EXPLANATION
3-1 FRONT PANEL
Fig. 1
(D POWER ONm /OFFSt sw i tch
Press the switch to turn power ON. Pressagain to turn power OFF.
© ADDRESS Display
Indicates the address.
(D SEOKey
Press this keyto select sequent ial recal1 mode (during this modeV is
displayed inthe lower right corner ofthe address display). Press the
keyagain to return to normal mode.
In the sequent ial recal 1 mode,the contentsset inthe address are output
without furtherprocessing.
© STO (store) Key
If this key is pressed together with theEXTkey© after the frequency,
level, and modulation sett ing, the setvalues are stored inthememoryof
9

thedisplayedaddress.
© RTN (return)/BIGIN Key
RTN : Duetothe address rotation function, the unit returns tothe
begin address.
BI GIN :Whenthe2ndF key® ispressed and second function mode activated,
the begin address canbe set by pressing this key.
© RCL (recalI)/END Key
RCL : If this key ispressedduring normal mode,the datastored inthe
memory ofthe currently displayedaddressis output.
END:Whenthe2ndF key® ispressed and second function mode activated,
the end address canbe set when this key ispressed.
® Address Setting Keys
Use the keys to increase or decrease the address in1 or 10-step
increments or decrements. Usethe keys onthe left for IG-step changes
and use those onthe right for 1-step increase or decrease. The address can
beset in100 steps from 0—99.
® EXTMODULATIONAF/L Input Terminal
Inputterminalforexternal modulation signalfor AM,FM signals. Inthe
case of stereo modulat ion, the left sides ignal is inputhere.Input
level is 3 Vp-p,input impedance lOkfi, maximum imput voltageis 10V(DC+
ACpeak).
© EXTMODULATIONR Input Terminal
In the case of stereo modulat ion, the right sidesignal is inputhere.
Input level is 3 Vp-p,input impedance lOkQ, maximum inputvoltageis 10V
(DC + ACpeak).
@EXTHIGH/LOW Indicators
The HIGH andLOW indicators indicate whether the input level ofthe external
modulat ions ignal istoo high ortoo low. The valuedisplayed atthe
modulat iondisplay when both HIGH andLOWare turnedoff, becomes the
modulation value.
10

Fig. 2
© MODULATION Display
3-digit indication of AM/FM and FM-STEREO modulation.
© FM/AM Modulat ionUnitIndicators
AM and FM-STEREO modulat ion are showed inX. FM frequency deviation is
indicated by kHz.
© FM/AM ModulationKeys
Keys to turn ON/OFF FM and AM modulation.
© EXT/30% Key
EXT : Press this key when an external modulation signal is to be used.
SOX : Whenthe2nd F key © ispressed and second function mode activated,
AM modulation isset to SOX when this key is pressed.
© 1kHz/75kHz Key
1kHz : The modulat ion source becomes the 1kHz internal modulat ion signal.
75kHz: Whenthe2nd F key © ispressed and second function mode activated,
the FM frequency deviation isset to 75kHz when this key is pressed.
11

@ 400Hz/22. 5 kHzKey
400Hz : The modulationsource becomes the 400Hz internal modulation signal.
22.5kHz :Whenthe2ndF key@ Is pressed and second funct ion mode
act ivated, the FM frequency deviation isset to22.5kHz when this
key is pressed.
© STEREO/3. 5 kHzKey
STEREO : Press this key forFM-STEREO modulation,
3.5kHz :When the 2ndF key® is pressed and second function mode activated,
the FM frequency deviat ion issetto 3. 5 kHz when this keyIs
pressed.
@ FM-STEREO ModulationSource Setting Keys
Used for sett ing the modulationsource forFM-STEREO modulation.
MAIN/100% : Press to select MAIN modulation mode.
LEFT/30% : Press to select LEFTmodulation mode.
RIGHT : Press to select RIGHT modulation mode.
SUB/EXT UR: Press to select SUB modulation mode.
When the 2ndF key® is pressed and second function mode activated, these
keys have the followingfunctions:
MAIN/100% :The FM-STEREO modulation isset to1001
LEFT/30% :The FM-STEREO modulation isset to301
SUB/EXT L&R:Whenthe external modulation signal is used during FM-STEREO
modulat ion, press this key when L andR sidesignals are
inputseparately.
* Inthe case of the SG-5110, 30%atthe time of FM-STEREO modulationshould
be thought ofas 67.5kHz deviation = 1001
Accordingly, 30%= 67. 5kHZ x 0. 3 - 20. 25kHz.
Since the pilot signal is 7.5kHz, the frequency deviation becomes 20. 25kHz
+ 7. 5kHz = 27.75kHz. When the modulation is expressed in%, the result
becomes 27. 75 - 75x 100-371
* The RIGHT keyhasno second function.
12

© PILOT ON/OFFkey
Key to turn ON/OFF the pilot signal forFM-STEREO modulation.
© 2nd F Key
When this key is pressed, the unit operatesaccording tothe functions
indicated byred letters below the keysinterconnectedwith this key.
® LCL (remote/1 oca I) key
This key only works with units having built-in GP-IB functions.
© FREQUENCY Display
Displays the frequency.
© FREO (MHz)/STEP key
FREQ (MHz): For directly setting the frequency by using the numeric keys @,
Thefrequency unit canbe changed as follows. Whenthe FREQ
(MHz) key is pressed andtheENTkey® is pressed after the
frequency has been entered by using the numeric keys, the unit
becomes MHz. Conversely, when thekHzkey© is pressed, the
unit becomeskHz.If this key is pressedagainbefore either
the ENTkeyorkHzkey ispressed, the frequency setting returns
13
Fig. 3

to theone va 1 idbefore the input.
STEP :Whenyou want to step upor step down the frequency ata certain
interval, set the interval as follows. Press the 2ndF key@.
Press this STEP keyand input the stepvalue ofthe frequency by
using the numeric keys. Finally press the ENTkey@.
® LEVEL (dBVSTEP key
LEVEL (dB): Used when the numeric keys are used for directlysett ing the
RF output level. The sett ing procedure is the same as for the
FREQ(MHz) key© setting.
The set unit is dB u when"dB u" 1 ights onthe levelunit
display anddBm when "dBm" 1ights.
STEP :Whenyou want to step upor step down the level ata certain
interval, set the interval as follows. Press the 2ndF key©,
then press this STEP keyand input the stepvalue ofthe LEVEL
byusing the numeric keys. Finally press the ENTkey@.
© ADDR (address) key
Used whenthe numeric keys are used for directsetting of the address. The
sett ing procedure is the same as fortheFREQ key© sett ing.
® MOD (modulation)/P!LOT key
Used when the numeric keys are used for directsetting ofthe modulat ion.
The setting procedure is the same as fortheFREQ key© setting.
© Numeric Keys
Used when setting data. Whena numeric key aloneispressed, the last digit
of the address changes.
© AFKey
Used for measuring the deviation. Press thekey once more to cancel this
function.
© kHzKey
Whenthe frequency setting should be kHz,press this button instead ofthe
ENT key@e
14

Fig. 4
© BS key
If a wrong value is input, the digits canbe cleared onebyone start ing
from the last input by pressing this key.
® ENTkey
When the set value has been input by using the numeric keys, the final set
ting including the set value unit is completed by pressing this ENTkey.
If theENTkey is not pressed, the key's LED cont inues flashing. If no
key is pressedduring the time theLED flashes, the displayvaluereturns to
thevalue valid before the input.
© CURSORkey
If the^ keyor• key is pressed, the cursor moves one step tothe left
or right.I f the <4 4 keyor t> D"keyIs pressed, the cursor moves
between the MODULATION,FREQUENCYand LEVEL displays.
®Rotary Encoder
Depending onthe position ofthe cursor, the rotary encoder canbe used to
decrease or Increase the displayed MODULATION,FREQUENCYand LEVEL values.
16

@ STEP (FREQ) Key
Used todecreaseorincreasethefrequency.
@ STEP (LEVEL)Key
Used todecreaseorincreasethe output level.
© LEVEL Display
Indicates the output level.
© LEVEL PRESET (A,B,C,D) Keys
Output level memory canbestoredinthese4 keys.
© Output level Unit Indicat ion/Uni t Indication SelectorSwitch
To select the output levelunit.
EMFdB//:Using1 JU V open voltageasthereference,the output level is
expressedasEMFdB//.
dBm: Using1 mW,50Qloadasthereference,the output level is
expressedasdBm.
©RF output terminal
RF output terminalwithan impedance of50Q.
16

3-2 REAR PANEL
© Cord Winder
Wind theAC cord round this winder forstorage.Italsoacts as legs when
the unit isstoredin a vertical position. However, avoidusing the SG-5110
placedin a vertical position.
® Heat Sink
During continuous operation the heatsink becomes hot. Donot place near
objects adverselyaffected by heat.Place the unit ina we11-ventilated
location duringoperation.
© RANGEOUTPUT Terminal
Can be set by pressing theSTOkey@ and the numeric key marked "3".
Whenthe frequencydisplay shows 35--1, the output is above the 35MHz range
and the voltage + 5V. Whenthe display shows 35--0, the level is above
the 35MHz range andOV is output.
© REMOTECONTROL Terminal
Terminal for remote control ofthe functionsindicated onthe front panel.
Connect the optional RT-100 remote controller to this terminal.
Fig. 5
17

@ VoltageSelector/Fuse Holder
Voltage selector: The vo1tage setting when shipped from the factory is
indicated bya cirkel mark intheSET column ofthe
ratings plate located ontopof this combined voltage
selector and fuseholder. Make sure that theAC mains
outlet prov ides a voltage that meets the power
requirements of this unit beforeconnecting thepower cord
to the mains.
Refer tothe"MA INTAI NANCE" section in this manual
if the voltage of this unit is tobe changed.
Fuse holder : The unit's AC mains protectionfuse is placed inthe
holder. In areaswith 100V, 120V power supply, a 0.5A
glass tube slow blow fuseshould be used. In areaswith
220V, 240Vpower supply, a 0, 3A glass tube slow blow
fuse should be used. Refer tothe"MA INTAI NANCE"
section if the fuse hastobe replaced.
® AC Inlet
Receptacle for AC power cord. Use thepower cordprovidedwith this unit.
®Optionalconcealing panel
A panel used to conceal the mount inghole for the GP-IB (factory option)
connectionterminal is provided.
18

4. OPERATING PROCEDURES
The unit outputs theset valuesdisplayed onthe variousportions ofthe
display via theRF output terminal. The displayconsists of3 portions:
MODULATION,FREQUENCYand LEVEL. Howto set the variousdisplayportions is
described below.
4-1 FREQUENCY SETTING
4-1-1 NORMAL SETTING
Enter the value by using theCURSORkey® and rotary encoder @.
1) Whenthe^^or• • key is pressed, the cursorthat 1 ights inthe
upper portion ofthe display shifts between theMODULATION,FREQUENCY
andLEVEL portions. Movethe cursor tothe port ionwhere the
frequency digits are displayed.
2)Press the^ or• keytomovethe cursor tothe digit you want to set.
3) Whenthe rotary encoderis rotated, the digit under the cursor starts
changing. Setto desiredvalue.
4) Repeat steps 2)and3) until the desired frequency isset.
* Itis not possible to enter a valuethat is outside the rated frequency
range ofthe unit (100kHz-llOMHz).
4-1-2DIRECTSETTING
Theset value is entered by using the FREQ (MHz) key@,the numeric keys @,
andthe ENTkey© or the kHzkey©.
1) Whenthe FREQ key© is pressed, the digits shown onthe frequency
display are erased andtheENT key's LED flashes.
19

2) While theLEDis flashing, enter the desired frequency value by using
the numeric keys. I f a wrong digit is entered,press theBSkey@
toerase the digits onebyone start ing from the last input. Then
enter the correctvalue.
3)Select the frequency unit. IftheENTkeyIs pressed after the
frequency has been input, and while theLEDis flashing, the unit
becomes MHz.IfthekHzkeyis pressedinstead oftheENT key, the unit
becomes kHz.
* During direct sett ing, keys otherthan the numeric keys onthe front panel
do not function.
*Ifneither theENTkeynorkHzkey ispressed after the frequency has been
input and whi1e theLEDis flashing, theset valuereturns tothe value
valid before the input whentheFREQ(MHz)key© is pressedagain. If
a frequency that exceeds the ratings of this uni t is entered, theset
valuealsoreturns tothe value valid before the input.
I NOTE
: 1
Both in case of normal setting and direct setting, setting
resolution is100Hzupto 34. 9999MHz, and1 kHz above 35MHz.
20

Example: Using direct setting tosetthe frequency to 23.456,7MHz.
KEY OPERATION
FREQUENCY DISPLAY
REMARKS
110.000.0
Indicates frequency
before setting
FREQ key
Frequency setting
stand-by
Numerickey2 2
Numerickey3 23
Numerickey5 235
Wrong input
BSkey 23
Inputcorrect ion
Numerickey.
23.
Numerickey4 23.4
Numerickey5
23. 45
Numerickey6
23. 456
Numerickey7
23.4567
Setting completed
ENTkey
23.456. 7
Unit sett ing/'output
4-1-3STEPSETTING
In addition tothe methods described in4-1-1 and4-l-2, theSTEP(FREQ)key@
canalso beusedtosetthe frequency.This method changesthe frequency in
steps (intervals). The stepvalue isset during thesecond function mode.
1)Press the2ndF key© to enter thesecond function mode.
2) When the FREQ (MHz)key© Is pressed, theENT key? s LED flashes andthe
frequency displayindicates the previously set stepvalue.
3) Whi 1 e theENT key's LEDis flashing, usethenumeric keys to enter the
desiredstepvalue. Ifa wrong digit is entered,press theBSkey@ to
erase the digits onebyone starting fromthe last input. Then enter
thecorrectvalue.
4)Select the stepvalue unit. IftheENTkeyis pressed after the step
value has been input and while theLEDis flashing, the unit becomes MHz.
If thekHzkeyis pressedinstead oftheENTkey,the unit becomes kHz.
The display changesfrom indicat ing the stepvalue toshowingthe
21