Transcript
MMA860 Universal Chassis Mini Agile Modulator Features • 135-Channel Range 54 MHz to 860 MHz (CATV 2-135), TV: CH 2 to CH 78 (54 MHz to 860 MHz) • > 45 dBmV min adjustable output for optimum carrier-to-noise performance • Compatible with most manufacturers mini-modulator chassis • State-of-the-art digital Phase Locked-Loop (PLL) design guarantees precise frequency locking for solid drift-free operation • Microprocessor control enables quick digital push-button channel selection for ease of installation, configuration, and improved system uptime • SAW (surface acoustic wave) filtered for superior adjacent channel performance enables drop-in channel expansion • In-band carrier-to-noise ratio > 65 dB ensures superior picture quality • Automatic selection of aeronautical offsets (12.5 kHz, 25 kHz) for trouble-free configuration • Front panel access controls for easy setup
Video Input
MMA860
PICO MACOM
Audio Input
Video
-
-
0
1
+
+
TV
A/V
DC Power Inputs
CATV +100 CATV
RF
RF Output
Mini Agile Modulator
Front View
Power Audio
Side View
Rear View
Specifications RF
Video
Frequency Range:
NTSC 54 MHz to 860 MHz (CATV/TV)
Video Input for 87.5%:
Output Level:
+45 dBmV (minimum – 15 dB adjustment range)
0.6 Vp-p to 1.5 Vp-p. Manual gain adjust with front panel control
Modulation:
87.5%
Output Impedance:
75 Ω
Diff. Gain:
≤ 5%
A / V Ratio:
Audio carrier level, adjustable from – 8 dB to –35 dB (±3 dB) Referenced to video carrier level
Diff. Phase:
≤ 5%
Chroma/Luma Delay:
Per FCC requiremnets
Input Impedance:
75 Ω
Frequency Response:
20 Hz to 4.2 MHz ±1 dB
Carrier to Noise (in-band)
62 db
Carrier to Noise (out-of band)
65 db
Intercarrier Frequency:
4.5 MHz ±3.0 kHZ
DC Power Input:
Spurious Outputs:
60 dBc typical, measured at –15 dB A/V ratio and with Modulator output level of + 45 dBmV
+12 V ±5% at 200 mA typical, 230 mA maximum.+5 V ±5% at 320 mA typical,380 mA maximum
Operating Temperature:
0 °C to + 50 °C ambient
Size:
1” (L) x 7.5” (D) x 3.5” (H)
Weight:
10.7 oz. (0.3 Kg)
General
Audio Input Level for 25 KHz:
100 mVrms to 3 mVrms. Manual gain adjust with front panel
Peak Diviation
25 kHz
Input Impedance:
Greater than 10K Ω, unbalanced
Ordering Information MMA860
Universal Chassis Mini Agile Modulator
www.picodigital.com Copyright © 2016 Pico Digital Inc. All right reserved. Information in this document is subject to change without notice. Pico Digital and the Pico Digital logo are trademarks of Pico Digital Inc. R2016-06-27.001
