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EM 100 EM 300 EM 500
Part 1

Sennheiser electronic GmbH & Co. KG · D-30900 Wedemark · Tel. 0 51 30 / 600-0 Änderungen vorbehalten / Subject to alterations / Sous réserve de modification

EM 100, EM 300, EM 500 05/00 ­ 1

TECHNISCHE DATEN
(Werte in Klammern entsprechen typischen Werten)

HF-TEIL
Frequenzbereiche____________________________________________ 518 ... 550 MHz 630 ... 662 MHz 740 ... 772 MHz 790 ... 822 MHz 838 ... 870 MHz Empfängerprinzip ____________________________________________ True Diversity Schaltbandbreite ____________________________________________ 32 MHz Empfangsfrequenzen ________________________________________ 1280 Kanalabstand _______________________________________________ > 400 kHz Frequenzraster ______________________________________________ 25 kHz 1. Oszillatorfrequenz _________________________________________ fe - 110,6 MHz 1. Zwischenfrequenz _________________________________________ 110,6 MHz 2. Oszillatorfrequenz _________________________________________ 121,4 MHz 2. Zwischenfrequenz _________________________________________ 10,8 MHz Modulationsart ______________________________________________ Breitband-FM Nennhub ___________________________________________________ 24 kHz Spitzenhub _________________________________________________ 48 kHz Schaltschwelle der Rauschsperre ______________________________ 0 µV ... 100 µV S/N=80 dB (unbewertet mit HDX) _____________________________ < 10 µV (6 µV) S/N max (Spitzenhub mit HDX) ________________________________ > 110 dB(A) (117 dB(A)) Antenneneingänge __________________________________________ HF-Eingang: 2x BNC 50

NF-TEIL
Kompandersystem __________________________________________ HDX NF-Ausgangsspannung (Nennhub) _____________________________ 500 mVeff; EM 300: 770 mVeff NF-Ausgangsspannung (Spitzenhub) ___________________________ unsymmetr. 1,3 Veff 4 dBu;EM 300: symmetr. 2,6 Veff 10 dBu Klirrfaktor bei 1 kHz und Nennhub _____________________________ < 1% (0,3%) NF-Frequenzgang ____________________________________________ 50 Hz ... 18 kHz; -3dB Pegel des Monitorausgangs / Last _____________________________ ausschließlich EM 500: >100 mW / 32 Steckverbinder ______________________________________________ NF-Ausgang: 6,35 mm Klinke; EM300/EM 500 zusätzlich XLR 3 Stecker

ALLGEMEIN
Nennspannung ______________________________________________ 12 V Betriebsspannung ___________________________________________ 10,5 ... 16 V Stromverbrauch bei Nennspannung ____________________________ typ. 150 mA Ruhestromaufnahme ________________________________________ typ. 10 mA Zulassung __________________________________________________ D801 488L RF

EM 100, EM 300, EM 500 05/00 ­ 2

Änderungen vorbehalten

TECHNICAL DATA
(Values in brackets are typical values)

RF STAGE
Frequency ranges____________________________________________ 518 ... 550 MHz 630 ... 662 MHz 740 ... 772 MHz 790 ... 822 MHz 838 ... 870 MHz Diversity system ____________________________________________ True Diversity Switching bandwidth _________________________________________ 32 MHz Receiver frequencies ________________________________________ 1280 Channel spacing _____________________________________________ > 400 kHz Channel grid ________________________________________________ 25 kHz 1st oscillator frequency _______________________________________ fe - 110.6 MHz 1st intermediate frequency ____________________________________ 110.6 MHz 2nd oscillator frequency _______________________________________ 121.4 MHz 2nd intermediate frequency ____________________________________ 10.8 MHz Modulation _________________________________________________ Wideband FM Nominal deviation ___________________________________________ 24 kHz Peak deviation ______________________________________________ 48 kHz Squelch threshold ___________________________________________ 0 µV ... 100 µV S/N=80 dB (unweighted with HDX) ____________________________ < 10 µV (6 µV) S/N max (peak deviation with HDX) ____________________________ > 110 dB(A) (117 dB(A)) Connectors _________________________________________________ RF input: 2x BNC 50

AF STAGE
Compander system __________________________________________ HDX AF output voltage (nominal deviation) __________________________ 500 mVeff; EM 300: 770 mVeff AF output voltage (peak deviation) _____________________________ unbalanced 1.3 Veff 4 dBu;EM 300: balanced 2.6 Veff 10 dBu THD at 1 kHz and nominal deviation ____________________________ < 1% (0.3%) AF-Frequency response ______________________________________ 50 Hz ... 18 kHz; -3dB Monitor level / load __________________________________________ exclusive EM 500: >100 mW / 32 Connectors _________________________________________________ AF output: 6.35 mm jack; EM300/EM 500 additional XLR 3 jack

GENERAL
Nominal supply voltage _______________________________________ 12 V Operating voltage ___________________________________________ 10.5 ... 16 V Current consumption at nominal voltage ________________________ typ. 150 mA Stand-by current _____________________________________________ typ. 10 mA Approbation ________________________________________________ D801 488L RF

Subject to alterations

EM 100, EM 300, EM 500 05/00 ­ 3

EM 100, EM 300, EM 500 SIGNALFLUSSZUWEISUNG INTERCONNECTOR ASSIGNMENT
EM 100, EM 300, EM 500 05/00 ­ 4

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EM 100, EM 300, EM 500 GRUNDPLATINE, BLOCKSCHALTBILD MAINBOARD, BLOCKDIAGRAM

EM 100, EM 300, EM 500 05/00 ­ 6

EM 100, EM 300, EM 500 GRUNDPLATINE, CPU BLOCK, STROMLAUFPLAN MAINBOARD, CPU PART, CIRCUIT DIAGRAM

EM 100, EM 300, EM 500 05/00 ­ 7

EM 100, EM 300, EM 500 GRUNDPLATINE, MODUL HDX, STROMLAUFPLAN MAINBOARD, MODULE HDX, CIRCUIT DIAGRAM

EM 100, EM 300, EM 500 GRUNDPLATINE, GEDRUCKTE SCHALTUNG, BESTÜCKUNGSSEITE MAINBOARD, PRINTED CIRCUIT BOARD, COMPONENT SIDE
EM 100, EM 300, EM 500 05/00 ­ 8

EM 100, EM 300, EM 500 GRUNDPLATINE, GEDRUCKTE SCHALTUNG, LÖTSEITE MAINBOARD, PRINTED CIRCUIT BOARD, SOLDER SIDE
EM 100, EM 300, EM 500 05/00 ­ 9

EM 100, EM 300, EM 500 HF-MODUL TEIL 1, STROMLAUFPLAN RF MODULE PART 1, CIRCUIT DIAGRAM
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EM 100, EM 300, EM 500 05/00 ­ 11

EM 100, EM 300, EM 500 HF-MODUL TEIL 2, STROMLAUFPLAN RF MODULE PART 2, CIRCUIT DIAGRAM

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EM 100, EM 300, EM 500 HF-MODUL TEIL 3, STROMLAUFPLAN RF MODULE PART 3, CIRCUIT DIAGRAM

EM 100, EM 300, EM 500 HF-MODUL, GEDRUCKTE SCHALTUNG, BESTÜCKUNGSSEITE RF MODULE, PRINTED CIRCUIT BOARD, COMPONENT SIDE
EM 100, EM 300, EM 500 05/00 ­ 13

EM 100, EM 300, EM 500 HF-MODUL, GEDRUCKTE SCHALTUNG, LÖTSEITE RF MODULE, PRINTED CIRCUIT BOARD, SOLDER SIDE
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EM 100, EM 300, EM 500 05/00 ­ 15

EM 500 MONITOR-MODUL , STROMLAUFPLAN MONITOR MODULE, CIRCUIT DIAGRAM

EM 100, EM 300, EM 500 05/00 ­ 16

Ident.-Nr.: 81441 Printed in Germany

EM 500 MONITOR-MODUL, GEDRUCKTE SCHALTUNG, LÖTSEITE MONITOR MODULE, PRINTED CIRCUIT BOARD, SOLDER SIDE

EM 500 MONITOR-MODUL, GEDR. SCHALTUNG, BEST.-SEITE MONITOR MODULE, PCB, COMPONENT SIDE