Will i still need a pre amplifier with this splitter? Will both give me a better picture or do I just need one of them?

No, you will NOT....unless you have a cable-run from the antenna that is >100'. Then, you will need a pre-amp...but will not need the in-line amp. Pre-amps are designed to be mounted at the antenna, where there is no source power. The pre-amp is powered by the coaxial cable itself, from a power-splitter nearby a house-power source. Pre-amps are preferred to amplifiers if you have a long cable-run to your TV set, from the antenna (>100'). However, preamps need to be mounted AT the antenna. So, if you are not handy with ladders, this may not be for you. The pre-amp removes the inherent signal-loss factor of the cable run, since the cable would not be on the amplified side. An INLINE-AMPLIFIER (like this one) is usually mounted in the house's cable utility box, where the cables branch out to go to different TV sets. It is convenient to get to and no need to climb on the rooftop. HOWEVER, you'll need to have a house-power source nearby. This is usually more handy if you have cable-runs from the antenna that are <100'. AGAIN, accessibility is a breeze since you do not need to go up on the rooftop. Multiple OUTPORT port options can be found on an inline-amp.

Can the booster be installed about 20ft from antenna?

The amplifier may be placed anywhere between the antenna and TV/DVR

Is the DC power adapter included?

Hello, Yes the DC power supply and cable to connect it to the amplifier are included with the amplifier. Thanks, CM support

Can it run on battery power?

It's a 12 VDC @500 mah, so yes, in theory it can run on battery, assuming a 12 VDC battery source is used, and of course, proper connection/polarity is made. This requires some basic wiring termination experience to make the experiment work safely.

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Q: Can the booster be installed about 20ft from antenna?

The amplifier may be placed anywhere between the antenna and TV/DVR

Q: Is the DC power adapter included?

Hello, Yes the DC power supply and cable to connect it to the amplifier are included with the amplifier. Thanks, CM support

Q: Can it run on battery power?

It's a 12 VDC @500 mah, so yes, in theory it can run on battery, assuming a 12 VDC battery source is used, and of course, proper connection/polarity is made. This requires some basic wiring termination experience to make the experiment work safely.

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📡 Elevate Your Signal, Elevate Your Binge Game

INTERFERENCE NOT HERE - Advanced built-in LTE and EMI filters block 3G, 4G, and 5G smartphone interference, reducing pixilation and channel dropouts.
POWER WITHOUT THE HASSLE - Powered via coaxial cable with included power insert—no need for outdoor power outlets, simplifying installation.
WEATHER READY DURABILITY - Heavy-duty, weatherproof metal housing with optional pole mount lets you install indoors or outdoors without worry.
FUTURE PROOF YOUR TV SETUP - Supports NexGen TV/ATSC 3.0 and 4K standards, ensuring crisp, clear reception for years to come.
BOOST YOUR SIGNAL LIKE A PRO - High gain adjustable preamp delivers superior signal strength and quality, perfect for weak signal zones and long cable runs.

The Channel Master CM-7779HD PreAmp 1 is a professional-grade TV antenna amplifier designed to boost signal strength and quality for indoor or outdoor antennas. Featuring adjustable gain, built-in 5G LTE and EMI filters, and weatherproof housing, it supports current and future digital TV standards like NexGen TV/ATSC 3.0 and 4K. Powered via coaxial cable, it’s ideal for long cable runs and poor signal areas, ensuring more channels and clearer reception without the hassle of outdoor power.

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825.28 DT

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TrustScore 4.5 | 7,300+ reviews

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Material Type	Metal
Item Dimensions	4.25 x 5.25 x 1 inches
Specification Met	Ul
Operating Temperature	32 Degrees Celsius
Package Type	Elegant Craft Box with Channel Master Logo and Product Info Label
Supply Current	200 Milliamps
Minimum Supply Voltage	110 Volts (AC)
Mounting Type	Mast Mount, Wall Mount or Indoor
Voltage	13.2 Volts (DC)
Maximum Supply Voltage	240 Volts (AC)

Channel Master CM-7779HD PreAmp 1 TV Antenna Amplifier with 5G LTE Filter, Adjustable Gain Preamplifier - Professional Grade Signal Booster

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