MIKROPORTPOCKETTRANSMITTER

 

 

 

 

 

 

 

SK 2012-9 and

Trägerfrequenz

 

 

 

 

 

SK 2012-90

Frequenzkonstanz bei

 

 

 

 

Temperatur zwischen

 

 

 

 

 

-10°C und +500

C für

 

 

 

 

Betriebsspannungen

von

besser als i:

3,5 kHz

 

1,5 V bis 5 V. . . . . . .

 

 

 

 

HF-Ausgangsleistung

an

30mW

 

 

 

einen Lastwiderstand

 

 

 

 

von 50 D. ..

..

 

< 4.1O-9W

 

 

 

Störstrahlu ngsleistung.

FM

 

 

 

Modulationsart. . . .

i:40 kHz/i:56

kHz

-.

Nennhub/Spitzenhub . .

 

 

 

 

 

 

 

NF-Eingangsem ptindIich-

4 mV/i: 40 kHz-Hub (typ.)

 

keit maximal. . . . . .

 

Abschwächung in 8 Stufen

46 dB (typ.)

 

 

um maximal. . . ..

 

 

 

Signal-Rauschabstand

bezogen auf Nennhub/

 

bewertet:

 

 

 

Spitzenhub

 

The Mikroport pocket transmitters SK 2012-9

 

 

 

 

 

 

a) CCIR 468, Spitze.

 

75 dB/81 dB (typ.)

(narrowband) and SK 2012-90 (wideband) are

b) Kurve »A«, effektiv. ..

90 dB/96

dB (typ.)

designed as single-channel transmitters and in-

(EmpfindlichkeitssteIler Pos. 1)

 

 

tended fm the frequency range 138 to 250 MHz.

Regelbereich mit Limiter

 

 

 

Together with a connected microphone the trans-

abhängig

von der

 

 

4 mV/30 dB (typ.)

mitters create wireless microphones 01the highest

gewählten

Empfindlichkeit

800 mV/

0 dB

quality. The Ilat construction and minimal dimen-

Klirrfaktor (Kges. 1.000 Hz),

 

 

 

sions mean these units are particularly weil suited

Nennhub. . . . . . . .

< 1%

 

1 dB

lor occasions when they must be worn as unob-

NF-Frequenzgang.

 

40 Hz bis 20 kHz:: 3 dB

strusively as possible, as is the case in lilm and 1V

Abfall oberhalb der oberen

 

 

 

productions, lor example.

Grenzfrequenz

 

 

18 dB/Okt.

 

 

 

 

80th transmitters are equipped with the noise sup-

Preemphasis . . . ..

50/1s

 

 

pression system "HiDyn" lor reducing disturbances

Spannungsversorgung

3 Stck. 1,5-V-Batterien

and improving the S/N ratio.Together with the

 

 

 

 

Alkali-Mangan,

 

 

 

 

receiver, likewise litted with this system

Stromautnahme bei Nenn-

Type IEC LR 03 "Micro«

 

 

 

(e. g. EM 1036), a transmission line 01outstanding

spannungvon4,5V..

;:;;80 mA

 

 

reliability and high transmission quality is

Betriebszeit. .

 

 

ca. 4,5 Stunden

constructed.

Abmessungen

 

 

92 x 52 x 17

 

 

(L x B x H in mm) . .

 

 

Microphone selection

Gewicht einschI. der

 

 

 

 

There is a choice between the three Lavalier micro-

Batterien.

 

 

 

ca. 180 9

 

 

 

 

 

 

 

phones MKE 2-2 R (omnidirectional characteristic),

FTZ-Nr.

 

 

 

Rf 2-74/86

 

 

 

 

 

MKE 10-2 R (omnidirectional characteristic) and

 

 

 

 

 

 

 

Abweichungen für SK 2012.9

 

 

MKE 40-2 R (cardioid characteristic) equipped with

 

 

a special plug. The supply voltage required lor

Nennhub/Spitzenhub. .

i: 8 kHz/i:

11 kHz

operating these electret microphones is at the

NF-Eingangsem pfindlich-

4 mV/i: 8 kHz-Hub (typ.)

transmitter'smicrophone input. Dynamic micro-

keit max.

 

 

.

phones or other low-resistance sources can be con-

 

 

 

 

 

 

 

NF-Frequenzgang.

 

40 Hz bis 12 kHz:;: 1 ~~

nected via a coupling condenser 01approx. 10 flF

FTZ-Nr.

 

 

 

Rf 2 - 73/86

 

(+ Pole on mitidle contact), which has to be litted in

 

 

 

 

 

 

 

externally.

5

 

 

 

 

 

 

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