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Home : Radio Frequency (RF) : Blonder Tongue Laboratories, Inc. - MICM-45DS

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HE-12 and HE-4 Series Stereo Audio/Video Modulator, 54 to 550MHz Frequency Range

Series: MICM

Model: MICM-45DS

Provides consistent audio level among all broadcast programs on different channels and among different programs
Audio AGC (automatic gain control) solution eliminates variations in loudness level
Compact design allows for deployment of 12 channels in 2RU
Utilizes saw filters for improved performance
Die-cast chassis for RFI immunity

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Fixed-channel analog audio/video modulators are available in NTSC channels 2-79 and 95-99 (54 to 550MHz). This 5th generation of the MICM series, equipped with the CALMTones feature utilizes an audio AGC (automatic gain control) solution that eliminates variations in loudness level that may be present among various program sources. It is available with stereo audio output. It provides consistent audio level among all broadcast programs on different channels and among different programs within the same channel. It utilizes saw filters for improved performance.

Provides consistent audio level among all broadcast programs on different channels and among different programs
Audio AGC (automatic gain control) solution eliminates variations in loudness level
Compact design allows for deployment of 12 channels in 2RU
Utilizes saw filters for improved performance
Die-cast chassis for RFI immunity
Integrated stereo encoder

Demodulator/Modulator Signal Type - Audio
Demodulator/Modulator Signal Type - Video
Spec Sheet available - Yes

Video Input Return Loss: 20 dB
Video Input Level: 1 Vp-p (87.5% depth of modulation)
Video Input Signal to Noise Ratio: 65 dB (weighted, 4MHz bandwidth)
Video Differential Gain: 2 % (87.5% depth of modulation)
Video Differential Phase: 2 ° (87.5% depth of modulation)
Mono/Stereo Audio Input Impedance: >10 kohms (unbalanced)
Mono Audio Input Level: 0.5 to 4 Vp-p (for 25kHz deviation)
Stereo Audio Input Sensitivity: 0.5 to 4 Vp-p (for 55kHz peak deviation)
Mono Audio Signal to Noise Ratio: 70 dB
Output Return Loss: 15 dB
Output Power Level: 45 dBmV
Output Carrier to Noise Ratio: 63 dB
Audio/Video Carrier Ratio: -11 to -19 dB (continuously adjustable)
Operating Temperature: 0 to 50 °C (32 to 122°F)
Maximum Frequency Response (Bandwidth): 550000 kHz
Maximum Frequency Response (Bandwidth): 550000000 Hz
Minimum Frequency Response (Bandwidth): 54000 kHz
Minimum Frequency Response (Bandwidth): 54000000 Hz
Depth: 7.78 in
Height: 3.50 in
Width: 1 in
Product Weight: 0.65 lbs

Audio/Video Modulator 924 kb - Data Sheet