Channel Master CM-7778HD Amplify+ Adjustable Gain Preamplifier for Professionals, Part # CM-7778HD

Outdoor Heavy-Duty Housing

Amplify+ is constructed of a die-cast metal housing with weatherproof ports to support outdoor installations in extreme weather conditions.

Adjustable Amplification

Amplify+ provides adjustable settings that allow the installer to select the appropriate gain required for a specific installation scenario, eliminating the potential issues encountered from either too much or too little gain. The internal switch can be placed at either a High or Low setting.

Adjustable FM Trap

Amplify+ provides a trap mechanism to block unwanted FM Radio signals from FM-enabled commercial TV antennas, which can cause interference with UHF and VHF television signals. Pass-through of FM signals can be enabled or disabled via an internal switch.

LTE Filtering

Like the consumer-ready Amplify product, Amplify+ provides LTE signal filtering. The proliferation of LTE signal towers and connected LTE devices are a growing cause of intermittent disruption of over-the-air broadcast television signals. These disruptions can result in weak signals, pixilation or even channel loss, and can be especially disruptive when an amplifier is used with a TV antenna.

What's included

• AMPLIFY+ TV antenna amplifier
• Power inserter
• Power Adapter
• Mounting Ubolt
• (2) Mounting Screws
• Weather Boots
• Installation Guide

Features

• Improves signal quality
• Dual Antenna Inputs (VHF & UHF)
• Switchable FM Trap
• Decreases pixilation
• May increase number of channels
• Ultra low noise
• Adjustable gain
• Blocks LTE interference from 3G/4G Smartphones and transmitters
• EMI & FM Out of band filtering
• Heavy duty rating for outdoor use
• Mast mounted for close proximity to antenna

Limited Warranty

• 90 days of parts and labor
• 90 days of support through phone, online chat and/or e-mail

Technical Specifications

• Impedance (Input and Output): 75 Ohm
• Connector: F-type
• Frequency range: 54MHz~88MHz, 174MHz~260MHz, and 470MHz~685MHz
• Gain VHF: 23dB (High) / 16dB (Low)
• Gain UHF: 26dB (High) / 20dB (Low)
• Gain Combined: 23dB (High) / 16dB (Low)
• Noise figure: 1.5dB
• UL listed: Yes
• RoHS compliant: Yes
• Return loss: <-15dB
• Input Voltage: 12-15 VDC
• FM trap: 95-108 MHz; >13dB
• Operating Temperature: -40 C to +60 C
• Size (product): 3.25 x 5.25 x 7.75 in
• Size (packaging): 8.125 x 3 x 5.125 in
• Weight (product): 1.5 lb
• Weight (packaging): 2 lb

FAQ's & Support Docs:

CM7778HD Product Sheet

CM7778HD Installation Guide