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MSG-2174 FM Multiplex Signal Generator

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 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.
An FM-AM standard signal generator such as MEGURO MSG-2280 is required in order to generate RF signal from data, which MSG-2174 encodes.

■	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

RDS
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)

DARC
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 16ｋbps Frequency shift : ±4ｋHz
External data/clock input	TTL
Bit error rate	PN9
Records	00 to 10 (00 fixed pattern)

Stereo Modulator
OUTPUT
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，1kHz，6.3kHz，10kHz，15kHz，EXT.
Modulation mode	L&R，MONO，MAIN，LEFT，RIGHT，SUB，OFF
Pre-emphasis	OFF，25µs，50µs，75µs
Frequency characteristics	30Hz to 15kHz ±0.2dB
Separation	55ｄB >
Distortion	0.02% < (Output 3Vp-p,DEV. 100% ,at MONO)
S/N ratio	74dB >
PILOT
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

Interface
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)×370(D)mm
Weight	Approx. 5kg
Operating temp range	0℃ to +40℃
Guarantee temperature range	+10℃ to +35℃