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Channel Master Manufacturers of HD TV Antennas (Ariels) Preamplifers (Preamps) Distribution amps, and antennas Mounting Channel Master is a US company that manufacture products for O.T.A. (over the air). They manufacture a range of outdoor antennas suited for receiving an over the air digital signal to enable you to capture far away towers and receive a crystal clear digital picture and even breath taking HD signals using a HD Antenna. Channel Master also make Amplifers and mounting Hardware for your HD Antenna installation.

Channel Master 7778HD Preamp (CM-7778HD)  Amplify+ Adjustable gain amplifier for Professionals
Channel Master 7778HD Ampliy+ Adjustable Gain Preamplifier for Proffessionals

Amplify+ is intended for outdoor professional use, including multi-dwelling units and commercial applications. The product provides separate UHF and VHF inputs for two-antenna, band-specific installations, as well as a switchable FM trap.

Amplify+ is an outdoor preamplifier designed for mast-mounting with the TV antenna(s). Professional installers may choose options for High gain, Low gain, FM signal blocking and band-specific dual antenna use if required.
Unlike the consumer-ready Amplify product, Amplify+ does not include a USB powering option for indoor use.
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

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

Technical Specifications
Impedance (Input and Output)
75 Ohm
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
UL listed
RoHS compliant
Return loss
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



Canada Distributor of Channel Master, Antennas Direct, Winegard, HDHomeRun, Mygica , Viewsat. Cut the cable cord and get free HDTV

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