EM100D

100d.bmp (34950 bytes)

The EM 100 DIG is a 100W FM exciter/modulator, microprocessor controlled, that allow a lot of applications like power level control at night to save energy, and the whole monitoring and adjusting of several parameters of the equipment (input level, deviation…). EM100DIG includes a high-efficiency amplifier and a restrictive 7-order filter. The switching power supply allows stable output power with input voltages from 90 to 260VAC. EM 100 DIG can be supplied with an internal digital stereo generator board (60dB separation).

TECHNICAL FEATURES
AUDIO
S/N ratio (30 ~ 20000Hz)	Mono: =78dB (86dB typical)
	Stereo: =72dB (77dB typical)
weighted S/N (CCIR)	Mono: =75dB (81dB typical)
	Stereo: =68dB (72dB typical)
T.H.D. Distortion (limiting threshold adjusted at 150kHz deviation)
75 KHz deviation	<0.05% (typical 0.02%)
150 KHz deviation	<0.2% (typical 0.05%)
stereo channels crosstalk (L / R)	<-50dB (with external encoder)
	< -60dB with internal encoder (100 ~ 5000Hz)
	< -50dB with internal encoder (30 ~ 15000Hz)
audio input frequency response
30 Hz ~ 15 KHZ (pass band)	�0.1dB
f >19 KHZ (rejected band)	-50dB
stereo input (MPX) frequency response	�0.1dB (10Hz ~ 100KHz)
aux input (SCA/RDS) frequency response	�0.2 dB (10KHz ~ 100KHz)
input levels
Audio and MPX (AT �75 KHz deviation)	-3.5 ~ +12.5dBm adj.
SCA/RDS (�7.5 KHz deviation)	-12 ~ +3.5dBm adj.
SCA/RDS (�2 KHz deviation)	-24 ~ -8dBm adj.
imput impedance
Audio and MPX	10K? balanced or 600? unbalanced (selectable)
Auxiliar SCA/RDS	10K?
Connectors
Audio	XLR Female
MPX, Auxiliar (SCA/RDS)	BNC Female
common mode input rejection (20 to 15000HZ)	>50dB (>60 dB typical)
MPX OUTPUT LEVEL	0 ~ +10dBm (for 75KHz deviation)
deviation limit	0 ~ +7dBm adj.
Pre-EMphasis time constant	50 or 75�s �2%
ModulatiOn
frequency range	87.5 ~ 108MHz
modulation mode	FM (75KHz peak deviation)
MoDULATION CLASS	F3E, F8E
carrier frequency tuning steps	10 / 100KHz
frequency offset	<�200Hz
frequency drift	Thermal <250Hz from -10� to 45�C Stability <100Hz / year
RF
RF output power	0 ~ 100W_RMS adj.
MAX. reflected power allowed	10W
harmonicS	<-70dBc
spurious	<-80dBc (-95dBc typical)
output impedance	50? (N Female Connector)
control and protection	- Protection against spurious emissions
	- Reflected power protection
	- Power level automatic reduction at night
general featuRes
AC power supply	90 ~ 260V_AC, 50/60Hz
power consumption	180VA (100W RF)
temperature range	-10 ~ 45�C
control signals	RF enable
	RF output power indication
	ON AIR
	Failure indication
	RS-232
Dimensions	3RU (19" rack)
	438 x 132 x 334mm without handles
weight	11Kg (24.2Lbs)