EM 100 DIG

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The EM 100 DIG is a 100W FM transmitter, 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 10KΩ balanced or 600Ω unbalanced (selectable)
Auxiliar SCA/RDS 10KΩ
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 75µs ±2%
ModulatiOn
frequency range 87.6 ~ 107.9MHz
modulation mode FM (75KHz peak deviation)
MoDULATION CLASS F3E, F8E
carrier frequency tuning steps 10 / 100KHz
frequency offset <±200Hz
frequency drift Thermal <250Hz from -10º to 45?C
Stability <100Hz / year
RF
RF output power 0 ~ 100WRMS adj.
MAX. reflected power allowed 10W
harmonicS <-70dBc
spurious <-80dBc (-95dBc typical)
output impedance 50Ω (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 ~ 260VAC, 50/60Hz
power consumption 180VA (100W RF)
temperature range -10 ~ 45ºC
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)