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.

We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Our Other Brands:Hewyn|Selfship

We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Our Other Brands:Hewyn|Selfship

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

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

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.

Product ID: 533471821

Details

Item dimensions L x W x H
10.8 x 13.3 x
Manufacturer
Channel Master
Maximum supply voltage
240 Volts (AC)
Minimum supply voltage
110 Volts (AC)
Voltage
13.2 Volts

📡built-in 5G LTE & EMI/FM filter

📶30 dB adjustable gain

🛡️weatherproof metal housing

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

7957728₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

Secure transaction

Description

📡 Elevate your TV signal game—because buffering is so last decade!

FUTURE PROOF YOUR VIEWING - Optimized for ATSC 3.0 and 4K broadcasts—stay ahead with next-gen TV standards.
SLEEK DURABLE AND DISCREET - Compact, heavy-duty metal housing fits indoor/outdoor/attic installs with weatherproof confidence.
INTERFERENCE NOT ON YOUR WATCH - Built-in LTE and EMI/FM filters block 3G, 4G, 5G smartphone noise for uninterrupted streaming.
POWER OVER COAX NO OUTLET NEEDED - Convenient coaxial powering means no extra outdoor power source—easy, clean setup.
BOOST YOUR SIGNAL BOOST YOUR BINGE - Amplify up to 30 dB for crystal-clear HD channels, even in challenging weather.

The Channel Master CM-7779HD PreAmp 1 is a professional-grade TV antenna amplifier designed to significantly enhance signal strength and quality. Featuring adjustable gain up to 30 dB, built-in 5G LTE and EMI/FM filters, and a rugged weatherproof metal housing, it supports current and future digital TV standards including ATSC 3.0 and 4K. Its compact design allows versatile indoor or outdoor installation powered conveniently over coaxial cable, ensuring a seamless upgrade to your TV reception experience.

Specifications

ASIN	B0C34KVK34
Best Sellers Rank	98,152 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 167 in Signal Amplifiers
Brand	Channel Master
Customer Reviews	4.4 out of 5 stars 511 Reviews
Global Trade Identification Number	00020572799997
Item Dimensions	10.8 x 13.3 x 2.5 centimetres
Item Weight	9.5 Ounces
Item dimensions L x W x H	10.8 x 13.3 x 2.5 centimetres
Manufacturer	Channel Master
Material	Metal
Maximum Supply Voltage	240 Volts (AC)
Maximum supply voltage	240 Volts (AC)
Minimum Supply Voltage	110 Volts (AC)
Minimum supply voltage	110 Volts (AC)
Model Number	CM-7779HD
Mounting Type	Assembly
Mounting type	Assembly
Operating Temperature	32 Degrees Celsius
Package Type Name	Shipping box
Specification Met	FCC
Supply Current	200 Milliamps
UPC	020572799997
Unit Count	1.0 count
Voltage	13.2 Volts (DC)

Reviews

D**N

10.11.2025

B**E

25.07.2024

G**S

20.11.2025

M**D

22.01.2026

B**T

9.01.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

7957728₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews