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Troubleshooting checklist
I
1IIII
11I
I
111
Detect
Nofunction,
LED3 doesnotlight
Possiblecauses
1.Batterydischarged
2.Batteryreversed
3.Microphonenotconnected
InsufficientbatteryvoltageNofunction,
LED3 lightsfaintly
Acousticfeedback
"HiDyn"atthe receiverswitchedoff orthe receiverbeing
usedisnotequippedwithacompandersystem.
Limiteddynamics Operatingmodeswitch6 inthe"HiDynoff" setting
NotransmissionalthoughtheTransmitterfrequencydoesnot matchthe receiver
transmitterisswitchedon frequency
Distortion 1.Inputsensitivitysettoo high
(see"Adjustingthe modulation")
2.Microphonedefective
Technical data
Carrierfrequency. . . . . . . . . . . . . . . .
Frequencydriftfor temperaturesbetween
-10°C and+ 55°C andfor
supplyvoltagevariationsfrom
+1O%and-30% . .
RF-outputpowerintodummyload1
radiatedpower. . . . . . . . .
Powerofradiatedharmonics
andspurious. . . . . . . . .
Modulation1preemphasis
Nominalswing. . . . .. . ..
Peakswingin modeof operation
HiDyn. . . . . . . . . . . .
HiDyn+ Limiter. . . . .
HiDynoff . . . .. ........
S/N ratioat inputsensitivity10mV
andHiDyn(peakswing)
AF-inputsensitivityfor nominalswing. .
Inputimpedance. . . . . . .
Rangeofsensitivitycontrol
atl mVsensitivity ....
Overloadrangeoflimitingamplifier.
18
19
SK1012-6
1frequencybetween32 and45 MHz
betterthan:!: 2.5kHz
10mW1~ 1mW
~4nW
FM150 fls
:!: 8 kHz
:!:10kHz
:!: 8 kHz
:!: 8 kHz
> 89 dB,typ.92 dB(DIN45500,
curveA,rms)
> 76 dB,typ.79 dB(CCIR468, peak)
adjustable,max.1mV,min.200 mV
approx.40 kQ
46 dB(typ.)
30 dBat max.sensitivity
6 dBat min.sensitivity
THDat nominalswingand1000Hz. . . .
Audiofrequencyresponse. . .
Attenuationabovethe upper
limitingfrequency ..
Currentconsumption
Powersupply ... ..........
Operatingtimein dependencefrom
batterytypeused . . . . . . . . . . . .
Dimensionsincludingmicrophone. .
Weightwith batteryandmicrophone
Extentofdelivery. . . . . . . . . . . .
Speciticdata torSK1012-7
RF-outputpowerintodummyload1
radiatedpower. . .. .....
Currentconsumption. ... .
Operatingtimeindependencefrom
batterytypeused
SpeciticdatatorSK1012-9
Carrierfrequency. . . . . . . . . . .
Frequencydriftfor temperaturesbetween
-10°C
and+ 55°Candfor
supplyvoltagevariationsfrom
+10% and
-30% . . .. .."
RF-outputpowerintodummyload1
radiatedpower. . . . . . . . . . . . . .
Powerofradiatedharmonics
andspurious. . . . .' .......
Currentconsumption. .. ..' .
Operatingtimeindependencefrom
batterytypeused
Speciticdata tor SK1012-90
Carrierfrequency. .. . .. .
Frequencydriftfortemperaturesbetween
-lOGe and
+55°C andfor
supplyvoltagevariationsfrom
+ 10%and-30% . .
~1%
40 Hzto 12kHz+ 1dB1- 3 dB)
> 18dBI oe!.(activelow- passfilter)
approx.15mA
9 VbatteryIEC6 F22
NiCd-accuapprox.5.5h,e.g.VartaTr 7/8;
alkali-manganeseapprox.32 h,
e.g.Mallory
MN1604
150x 46 x 24mm
approx.226g
1transmitter,1SZU1008neckstrap
100mW/approx.lOmW
approx.40 mA
NiCd-accuapprox.1.5h,e.g.VartaTr7/8;
alkali-manganeseapprox.8 h,
e.g.Mallory
MN1604
1frequencybetween138and220 MHz
betterthan:!: 3.5kHz
50 mW1approx.30 mW
~ 50 nW
approx.40 mA
NiCd-accuapprox.1.5h,e.g.VartaTr7/8;
alkali-manganeseapprox.8 h,
e.g.MalloryMN1604
1frequencybetween138and220 MHz
betterthan:!: 3.5 kHz