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MSG-2174 FM Multiplex Signal Generator
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MSG-2174 is an FM multiplex signal generator adopted a multiple module method.
Combination of DARC modulator, RDS modulator, and FM stereo modulator can be chosen depending on usage of user.
DARC-VICS/RTIC FM multiplex method and RDS/RBDS FM multiplex method are available by this one unit, moreover a stereo modulator can be installed in same casing.
By using application software attached to this unit, new data can be created and edited by a PC simply.
This unit can output the data by being downloaded.
Regarding DARC encoder function, we reduced its size by modifying specifications of
MSG-2170/2173 and achieved cost reduction.
As for RDS function, usability for production line was prioritized because it is an existing method.


RDS/RBDS, DARC, and Stereo modulator can be combined freely.
  *Main Flame + RDS only
*Main Flame + RDS + Stereo Modulator
*Main Flame + DARC only
*Main Flame + RDS + DARC
*Main Flame + Stereo Modulator
*Main Flame + DARC + Stereo Modulator
*Main Flame + RDS + DARC + Stereo Modulator


?@Main frame
Composite output signal
Output level Max. 3.00Vp-p(0.00 to 3.00 0.01V step)
S/N ratio 80dB<
Output impedance 75Ω
External signal mixing input
Input frequency range 30Hz to 100kHz
Input/Output gain 1.0(+0, -0.5dB)
Input impedance 10kΩ
Pilot input
Input level range 1.0Vp-p to 3.0Vp-p
Input impedance 10kΩ
Input data/clock
Input level range TTL
Input impedance 10kΩ

Output level Max. 300mVp-p : 3.0Vpp=75kHz(100%)
Output level setting 0.0 to 10.0% (0.1% step)
Subcarrier frequency 57kHz ±2Hz
Subcarrier distortion 0.1% < (Output 3Vp-p ,DEV. 10%)
Data modulation mode DPSK 1.1875 kbps
External data/clock input TTL
Bit error rate PN9
Records 00 to 10 (00 fixed pattern)

Output level Max. 450mVp-p : 3.0Vp-p = 75kHz(100%)
L-MSK level control Auto/Manual switching
AUTO Upper limit : 10.0% ,Lower limit : 4.0%
MANUAL 0.0 to 15.0% (0.1% step)
Subcarrier frequency 76kHz ±2Hz
Subcarrier distortion 0.1% < (Output 3Vp-p,DEV. at 10%)
Data modulation mode LMSK 16??bps Frequency shift : ±4??Hz
External data/clock input TTL
Bit error rate PN9
Records 00 to 10 (00 fixed pattern)

?@Stereo Modulator
Output level Max. 3.57Vp-p : 3.0p-p=75kHz(100%) Pre-emphasis : OFF
Output level setting 0 to 125% (0.5% step)
Internal modulation frequency 400Hz?C1kHz?C6.3kHz?C10kHz?C15kHz?CEXT.
Pre-emphasis OFF?C25µs?C50µs?C75µs
Frequency characteristics 30Hz to 15kHz ±0.2dB
Separation 55??B >
Distortion 0.02% < (Output 3Vp-p,DEV. 100% ,at MONO)
S/N ratio 74dB >
Pilot signal 19kHz ± 1Hz
Output level setting 0 to 15% (1% step)
Pilot output 1.0Vp-p
EXT. AF input Frequency range 30Hz to 15kHz
Input level judgment accuracy 2Vp-p±2%
Input impedance 10kΩ

Serial interface RS-232C: D-sub 9pin (male), USB : Type B (female)
Parallel interface GP-IB (Compliant with IEEE Std. 488-1975)

?@General Data
Power requirements AC 90 to 240V50/60Hz
Power consumption Max. 20VA (Full-featrued product)
Dimensions Approx. 420(W)?~100(H)?~350(D)mm
Weight Approx. 5kg
Operating temp range 0?? to +40??
Guarantee temperature range +10?? to +35??

* Specifications are subject to change without notice.


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