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  • Channel Master CM-4221HD HDTV UHF Antenna
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Channel Master CM-4221HD HDTV UHF Antenna

83 customer reviews
| 9 answered questions

List Price: $65.99
Price: $59.99 & FREE Shipping. Details
You Save: $6.00 (9%)
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Ships from and sold by Amazon.com.
  • receives digital and analog UHF TV signals (channels 14-69) Designed and tested for high quality HD and UHF reception
  • Reception Range: Up to 60 miles
  • 75-ohm coax output
  • 4-bay bow-tie dipole design
  • roof or Attic installations
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11 new from $59.99
This item’s packaging will be visible when delivered and cannot be gift-wrapped.
$59.99 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

Channel Master CM-4221HD HDTV UHF Antenna + Channel Master 1805 Super Mast + Coaxial Cable (50 Feet) with F-Male Connectors - Ultra Series by Mediabridge - Tri-Shielded UL CL2 In-Wall Rated RG6 Digital Audio / Video - Includes Removable EZ Grip Caps (Part# CJ50-6BF-N1 )
Price for all three: $90.98

Buy the selected items together

Technical Details

  • Brand Name: Channel Master
  • Model Number: CM-4221
  • Item Display Weight: 11.00 pounds
  • Manufacturer Warranty Description: 1 year

Product Description

The Channel Master CM 4221HD is a pre-assembled 4-Bay outdoor TV antenna which will receive UHF and HD signals. This antenna has a signal range of up to 45 miles and will pick up available local digital and HD signals. With an HD television you will pick up any crystal clear HD signals being broadcast in your area. Includes hardware to attach to antenna mast but does not include the mast and mount .

Product Information

Technical Details
Brand NameChannel Master
Item Weight5.8 pounds
Product Dimensions5.5 x 24.5 x 33 inches
Item model numberCM-4221
Color NameGray
Specification MetEnergy Star Certified
Additional Information
Best Sellers Rank
Shipping Weight5.8 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableJanuary 28, 2009
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

63 of 65 people found the following review helpful By Amazon Customer on January 9, 2007
Verified Purchase
I initially made the mistake of thinking all expensive antennas were created equal. Needless to say, my first antenna was a $100 purchase that worked no better than my old rabbit ears.

I then made the decission to "step up" and purchased a Radio Shack antenna from the "electronic experts". It was touted as an attic antenna but was really too cumbersome for the attic and again provided no more value than my rabbit ears.

Fed up with making returns, and noticing that being in a hurry was costing me time, I finally decided to do some research. After much reading, I decided the 4221 based on its rating was going to be the right thing. I have it installed in my attic and could not be happier. It is a very manageable size and most importantly, it brings in all the channels flawlessly! After the two previous failures I could not be more thrilled. Price is not the key. It was cheaper than the two previous attempts by about half the cost. . . And the best news. It works!

You will want to check on the requirements for your area. A midrange UHF was perscribed as the right thing based on broadcast signals in my area. One also needs to ensure the antenna is pointed in the right direction. Most high gain antennas are directional as is the 4221. If you are looking for a midrange UHF, look no further.
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42 of 43 people found the following review helpful By Harold Macks on January 8, 2008
I spent too much time researching antenna's and asked the experts from lots of forums for advice. I purchased a CM4221 and here are my findings.

1. Very good UHF reception. My local high definition is stunning.
2. Good VHF reception.
3. Excellent antenna to buy if you don't want to invest in a rotor.
4. It has a wide reception angle and has good reception from its back lobes (can see good in the opposite direction it is pointed). I live in 48239 zip and have major Detroit stations less than 10 miles away. The Detroit stations are from 356 to 60 degrees in direction. I pointed the antenna at about 30 degrees and received all the Detroit stations at 90% to 100%. The great part (why I bought this antenna) is that I received the Toledo stations 50 miles south (187 degree's) and Canadian CBET channel 9 13.3 miles at 113 degrees south with decent reception. I started with the antenna pointed south (180 degrees) but one Detroit station (channel 7) was weak.

Here are my list of stations:
7.1 Excellent
2.1 Excellent
4.1 Excellent
20.1 and 20.2 Excellent
50.1 Excellent
18 Excellent
56.1, 56.2, 56.3 Excellent
62.1 Excellent
38.1 38.2 Excellent
9 Good (CBET out of Canada)
23 OK
13 OK
11 OK
28 OK
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36 of 40 people found the following review helpful By Science Tech on June 6, 2008
Verified Purchase
Buying an antenna for your digital TV receiver? It can be difficult, eh? If you live in the city near the transmitters, it's fairly easy -- any small, truly omni-directional antenna will do fine (perhaps the Antennas Direct DB2). If, like me, you live 50+ miles from the TV transmitters and they're in different directions, it becomes a challenge. Here's some tips:

- No antenna is totally "omni-directional" (receives from all directions) no matter what the ad says. Every antenna receives better in one direction than another, and the high-gain antennas are the most picky. Your TV's rabbit ears antenna might do better than a fancy high-gain antenna if it's pointed in the wrong direction. If you buy a "uni-directional" or high-gain antenna, be prepared to spend a lot of time tweaking the direction.

- Don't believe the high-gain ratings, they're mostly marketing hype. There are independent web sites by antenna nerds that rate antennas fairly, so do some research. What you'll find is that every antenna receives some channels better than others -- for instance, it may have great reception ("gain") for channels 30-60 but be terrible for channels 1-20. Ideally, buy an antenna that has has good gain for the channel(s) you're most interested in... if you know what those are.

- Antennas are highly sensitive to position, direction, and things nearby that might interfere with the signals (trees, houses, traffic, the family dog, etc). So what works for me or your neighbor might not work for you. Even a slightly different location may have a huge effect on your reception.

I have a Channelmaster 4221 and an AntennasDirect DB8, one pointed at distant Seattle and the other pointed at Canada, both connected to an RCA A/B antenna switch.
Read more ›
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23 of 25 people found the following review helpful By GvilleGuy on February 14, 2008
I installed the Channel Master 4221 UHF antenna in my attic, suspended from a rafter using a mounting bracket and pole (see pictures I submitted on this site). I did not hook up any kind of power assist to the antenna. This is a medium range UHF-only antenna. My goal was to pick up digital network feeds for a high def TV. Everyone's situation will be different depending on your distance from stations and local topography around your house. In my case I was somewhat skeptical since the furthest station I wanted to pick up is 53 miles away, and my two story house is situated in a depression with tall trees in the direction of most of the TV signals. Turns out I worried over nothing. The antenna works great and picks up solid signals from 25 stations (most of them PBS variations), including the ABC station I wanted from 53 miles away. I could not pick up ANY analog stations clearly - but all digital stations look good. At first I was still getting signal breakup on some of the high def stations, but I used a web site to view a map showing from which direction the station signals were coming to my house. I then rotated the antenna to face most of those signals and the stations locked in with solid signal strength. I am very impressed with this antenna in an attic mount situation, and highly recommend it to other people for its low end price and high performance.
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Channel Master CM-4221HD HDTV UHF Antenna
This item: Channel Master CM-4221HD HDTV UHF Antenna
Price: $59.99
Ships from and sold by Amazon.com

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