Overview: FM Modulation Monitor
The MM2007 is a compact, portable FM modulation monitor. It is an extremely versatile tool for testing and evaluating all FM broadcast parameters being specially designed for aligning and checking limiters, compressors, stereocoders, RDS coders and FM exciters in broadcast FM studios. It also features one Composite MPX output that could be useful for measurments through an audio analyzer or to drive an FM transmitter in a translator configuration.
Medium value deviation.
± 50 KHz led deviation.
4 Memory frequencies
± 75 KHz led deviation.
Right channel level.
Left channel level.
R-L channel level.
Pilot tone presence.
Pilot tone level (*).
RDS level (*).
RF signal level
Multi-Measure LCD Display
Pilot tone and RDS level can be measured “live” with the program on. The MM2007 has a tuner with a direct frequency input via keypad in 10 KHz steps.
Demodulated signal (left and right) are present in the front of the unit with RCA (unbalanced) connectors
FREQUENCY RANGE :87.5 - 108 MHz
TUNING STEP :10 KHz
IMAGE REJECTION : > 52 dB
IF REJECTION :90 dB
OVERLOAD :120 dBmV
SENSITIVITY :10 mV for S/N 50 dB
LOCAL MODE SENSITIVITY : 25 dB down nominal
S/N Un-weighted :>70dB with Vin 1mV
IF BANDWIDTH :300 KHz within 1.5 dB
DEVIATION ACCURACY :± 0.8 dB
19 KHz LEVEL ACCURACY :± 0.8 dB
57 KHz LEVEL ACCURACY :± 1.5 dB
LEFT and RIGHT LEVEL ACCURACY : ± 1.5 dB
RF LEVEL ACCURACY :± 3 dB
AUDIO DISTORTION :< 0.25 %
STEREO CROSSTALK :40 dB within 200 Hz and 10 KHz
PLUG AUDIO LEVEL OUT :0 dBm 600 ohm
RCA AUDIO LEVEL OUT :4V PeP 600 ohm
AC SUPPLY :120-220V AC 25VAC /+12VDC ext.
OP.TEMPERATURE RANGE :0-50 °C (32-122 °F)