Monroe Electronics R180av70 - Manual (Page 3)

Product Overview
This new Monroe Electronics R180/av Series Audio/Video Comb Filter Generator offers
economical, high quality, full screen replacement for EAS systems.
Approved for small cable systems, the R180/av Series Audio/Video Comb Filter Generator
features improved picture quality, and is compatible with all headends. New “Lykinsor”
circuitry renders the inherent beats nearly invisible. Adapted for digital cable programming
with the guard band (72MHz - 76MHz) baseline noise level greater than 40dB down. No
additional filtering is required. The unit’s smaller size minimizes the required rack space.
The R180/av Series Audio/Video Comb Filter Generator meets all FCC aeronautical band
offset requirements.
This instruction manual is intended for use with the R180/av50 (50 channels), R180/av70 (71
channels) and R180/av70/o78b (78 channels) instruments.
Specifications
Audio/Video R180/av50 on all channels 2 through 50 (380 MHz)
R180/av70 on all channels 2 through 71 (500 MHz)
R180/av70/o78b on all channels 2 through 78 (550 MHz)
Video Input level: 0.5 to 2 Volts p ~ p
Frequency response: ± 1 dB, 10 Hz – 4.2 MHz
Standard: U.S. System NTSC sync negative
Input Type: Clamped video, negative sync
Audio
Audio carrier level: -16 dB below video carrier
Automatic Gain Control: 30 dB
FM Deviation: ± 25 KHz automatic
Input Level: 0.3 to 3 Volts p ~ p
Frequency Stability: ± 1 KHz
Frequency Response: ± 1 dB 30 Hz to 15 KHz
Adjustable RF Output Control up to 40 dBmV
Trunk Switch
Insertion Loss: .3 dB max.
Return Loss: 20 dB min.
Impedance: 75
Ω
Isolation: 70 dB min.
FCC Offset ± 3 KHz in the aeronautical band
Channel Flatness 3 dB
Power Requirements 110 VAC, 30 Watts
Physical Specifications 19” W x 3.5” H x 13.5” D
Equipment Supplied: Line Cord
Manual
Mounting Kit