Channel Master's CM3000A antenna provides crystal-clear over-the-air digital TV broadcasts. Its multi-directional design means it can pull in signals from all directions without requiring a rotor. Plus, it's small enough to easily mount on your roof, wall, or chimney, or in attic. The CM3000A's built-in amplifier improves reception of weaker stations.

The CM3000A is classified as a Small Multi-directional antenna, with maximum range of 45 miles. For tips on selecting an antenna, and links to websites that help you locate HDTV signals in your area, check out our article on choosing and installing an antenna for HDTV.

Product Highlights:

  • receives digital and analog UHF/VHF TV signals (channels 2-69)
  • range is up to 45 miles for VHF signals, 30 miles for UHF
  • built-in fixed-gain amplifier (+20 dB)
  • 75-ohm output for coaxial cable
  • AC adapter
  • can also be used in non-powered mode for marine and RV applications
  • can accommodate 1-1/2" mast (not included)
  • 22"W x 2-1/2"H x 22"D
  • warranty: 90 days
  • Our 60-day money-back guarantee
  • RG-6 cable is recommended

Hands-on research

What's in the box?

Download owner's manual

  • SMARTenna (omnidirectional antenna)
  • AC power adapter with attached 6' DC cord terminated by threaded coax connector
  • 6' Coaxial RG-59 cable (with F-type connectors)
  • Metal mounting bracket
  • 2 Metal clamps
  • 2 U-bolts (with hex-nuts installed)
  • Four 5/16" hex-head screws
  • #6 x 1/2" Phillips-head screw
  • 4 Star-washers
  • Rubber boot
  • Instructions
  • Warning/Warranty information
  • Danger Label

Product Research


Modern Design: The Channel Master SMARTenna (CM 3000A) is a light weight outdoor antenna with a modern and sleek design. The modern style is unobtrusive and blends well with the decor of most homes and condominiums. The SMARTenna features a UV protected, copolymer, weatherproof housing.

HDTV Ready: This antenna is optimized to receive HDTV signals. The Channel Master SMARTenna omnidirection antenna provides excellent reception of UHF and VHF TV channels in most viewing locations. With the Channel Master CM 3000A you will receive crystal clear, native, uncompressed HDTV signals up to 45 miles away from the broadcast tower.

Omnidirectional Antenna: The Channel Master SMARTenna has omnidirectional characteristics to provide receptions where stations are in different directions without the use of a rotator system. The CM 3000A receives reception from all directions, so no rotator is required.

Built-in Amplifier: The SMARTenna includes an internal amplifier to improve reception in weak signal locations. It is also very advantageous where the signal from the antenna is split to several TV sets.

Mounting: The Channel Master SMARTenna can be mounted to a mast (round mast up to 1.5" O.D) on roofs, walls, chimneys, and attics.


  • Source Compatibility: Use with digital converter box or HD-ready TV
  • Reception Range: Channels 2 thru 69 up to 45 Miles
  • Omnidirectional: 360-Degree amplified HDTV reception
  • Bandpass: 54-806 MHz
  • Built-in Amplifier: Internal amplifier with fixed FM trap (attenuates 88-108 MHz)
  • Amp gain: 20 dB
  • Power Supply: DC power supply and injector (117 VAC 60 Hz, 4-watts)
  • Impedance: 75-ohm unbalanced
  • Antenna Size: 22" in diameter x 2.5" in height

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Channel Master CM3000A Reviews

Average Customer Review:

6 reviews
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Channel Master CM 3000A

Written By Gazelam, Moorhead MN on Sunday, September 23, 2012

Crutchfield Customer Review (What's this?)

The antenna was very easy to install. I used an existing mount for what used to be my satellite dish. It pulls in all stations for my location and the picture quality is, as expected, perfect. The "boot" that goes over the cable to antenna connection point, is a bit hard to install, but should be a good watertight fit.

Pros: Easy to install and works great.

Cons: Non really.

Excellent reception at 25 - 30 miles

Written By Bob V, N. E. of Tampa, Fl on Wednesday, June 01, 2011

Crutchfield Customer Review (What's this?)

I was a little concerned the CM 300A antenna would pull in the stations from the Tampa Area. I am very pleased with the reception I get at 25 - 30 miles away. One station I wanted is 271 deg (W) and several others are at 179 deg (S) of my location. I get all of the stations I wanted and then some. Shipping was very fast, assembly and mounting was easy. In my humble opinion, a very good buy!

Channel Master CM3000A

Written By Vincas, Sarasota, FL 34232 on Sunday, April 10, 2011

Crutchfield Customer Review (What's this?)

I got 36 chanals from 3 diferent stations so, what can be better.

Works perfectly

Written By DaleT, Madison, WI on Thursday, October 07, 2010

Crutchfield Customer Review (What's this?)

I had been using an old antenna for HDTV but the signal would come and go
constantly. I ordered the Channel master CM3000A and it works perfectly. I
have not had any drops in the HDTV signal.

Channel Master CM3000A

Written By MikeJ, Pewaukee, WI on Tuesday, September 28, 2010

I never write reviews but was so disappointed in this product I decided that I should. I do not
have cable or satellite TV (can't afford it) and have been using rabbit ears with acceptable
results on most days. I mounted this antenna in my attic, ran the recommended RG6 cable,
turned on the TV and ran the auto-scan feature on the TV. Same amount of stations, worse
picture quality. I tried re-directing the omindirectional antenna dish and no change. Three
days later, after deciding that I should return the antenna, I tried re-directing the dish, one
last time. What a DIFFERENCE! I can't believe an omnidirectional antenna can be so
sensitive to the direction its "pointed" in. Anyway, the antenna works great, just as I had
hoped for and much better than the rabbit ears I was using.

CM3000A "omnidirectional" HDTV antenna

Written By Mr. A, San Diego, CA on Monday, September 13, 2010

Crutchfield Customer Review (What's this?)

I was not impressed by this product. Although, I was attracted to the sleek, UFO type design and internal amplifier, the product fell short in descriminating usable signal strengths, but worse than that, I was only able to receive Mexican HDTV signals. The US border is approx. 35 miles from my home. I mast mounted the antenna 12 feet above my 15 roof and I was only able to receive one San Diego station (35) from the University of California San Diego (UCSD). The FCC does not restrict signal strenth transmision from Mexico, nor can it. The signals are VERY strong. The US transmitters ontop of a local Soledad mountain-7 miles from my home were not receivable from this antenna. I had to reutrn it.

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