Channel Master 4221HD

Mid-range outdoor rooftop HDTV antenna

Item #: 6594221HD

In Stock

11 Reviews | 1 question - 8 answers

Your price: $69.99 Earn up to 70 Rewards points

Add to Cart Free Shipping Lifetime Tech Support

+ Add to wishlist + Email me alerts for this product

View all associated offers

Channel Master's model 4221HD antenna can receive digital and analog over-the-air TV signals in the UHF band only (most digital TV signals are in the UHF band). The 4221HD is optimized for distant "near-fringe" reception of HDTV. Its space-efficient design is suitable for roof and attic installations.

The 4221HD is classified as a Medium-sized Directional antenna. For tips on selecting an antenna, and links to websites that help you locate HDTV signals in your area, check out our article explaining how to choose and install an antenna for HDTV.

Product Highlights:

  • receives digital and analog UHF TV signals (channels 14-51)
  • range is 45 miles
  • 4-bay bowtie dipole design
  • 24-3/8"W x 5-3/16"D x 33"H
  • 12-1/4" turning radius (if used with an antenna rotor)
  • 75-ohm output for coaxial cable
  • accommodates 1-1/4" mast (mast not included)
  • warranty: 3 years
  • Our 60-day money-back guarantee
  • RG-6 cable is recommended

Hands-on research

What's in the box?

Download owner's manual

  • Antenna assembly
  • Twist-on threaded F-connector
  • Two-piece mounting bracket
  • Weather boot
  • 1 U-bolt
  • 2 Nuts
  • 2 Flat washers
  • Installation instructions (English/Spanish)
  • Electrical wire danger warning sticker

Product Research


Overview: The Channel Master 4221HD antenna is designed for UHF frequencies only (channels 14-69), both digital and analog. It can be mounted on a roof, on a wall, to a chimney, or in an attic.

Mounting Brackets: The mounting brackets and the U-bolt are used to mount the antenna to a mast. The outer diameter of the mast should be approximately 1-1/4 inches.

Turning Radius: If using a rotor on the antenna mast, make sure a 12-1/4" turning radius around the antenna is clear of obstruction.

Grounding: The antenna and mast should be properly grounded. Grounding provides lightning protection for the antenna and your TV set.

Note: No grounding hardware is provided with the antenna.

Connections: The balun is built-in (attached at the factory) and has a female F-type connector. The included waterproof rubber weather boot should be installed over the cable connection to guard against corrosion. A twist-on threaded F-connector is also included.

Note: Coax cable is not provided, RG-6 is recommended.

Operating Range: The rated range of the 4221HD is 45 miles, but the distance is approximate, actual performance depends on too many variables to predict accurately.

Gain: The average gain across the UHF frequency range is 11.5 dB.

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 open the box, verify contents, 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 4221HD Reviews

Average Customer Review:

11 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $500 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Very nice antenna

Written By captainfoo, Winter Springs, FL on Monday, July 28, 2014

Crutchfield Customer Review (What's this?)

Fit very nicely in the attic, and getting great reception.

Pros: Not too large for attic, great reception

Cons: It is shipped in the manufacturing packaging. I tried to purchase it somewhere else, where it was damaged in shipping. I returned it and ordered it through Crutchfield and had no problems. But feel lucky because it is not packaged very well.

Great Antenna / Una Gran Antena

Written By Roberto H, Aguadilla, Puerto Rico on Tuesday, June 24, 2014

Crutchfield Customer Review (What's this?)

This antenna'm using in Isabela Puerto Rico. Our area is mountainous and TV towers are geographically remote. Best antenna for money. It works grate.

Pros: Best reception , easy installation , free hight definition network . Fast shipping .

Cons: None

Must have for small places

Written By Jacob, Dublin, OH on Sunday, October 06, 2013

Crutchfield Customer Review (What's this?)

Put this unit in my attic and the signal quality is great. Better than cable HD. Cable providers have to use massive amounts of compression to deliver 300+ channels so the quality suffers. Crutchfield always delivers quick. Picks up over 20 channels HD no problem with strong signal strength. Great size for the small access panel into my attic.

Pros: Easy install, great signal quality, and light weight.

Cons: None

Works Good

Written By WesE, Somerset, VA on Friday, June 07, 2013

I am about 25 miles from the local transmitters in Charlottesville. My house sits fairly low and this antenna lets me get all the Charlottesville channels and some of the Richmond channels (60 miles away CH 6, 8, and 35) at the same time without rotating it. The Richmond channels are coming through the back of the antenna, so those signals are not as strong. But I am real happy that I it does not seem to be that sensitive to the direction. I looks like I should get more channels from Northern Virginia (80 miles away) once I get this antenna up above the roof and on the rotator and add a pre-amp. Right now I have a metal siding house and roof blocking those signals.

Pros: Low profile to mount along side of house. When viewed on edge the antenna disappears from the road. Much better signal and less finicky then the previous dept. store plastic amplified antenna. Solid strong signals for stations at 25 miles. Good enough signals for some channels at 60 miles away.

Cons: Does not work well for low or high VHF signals...but many of those are not around after the digital transition. You will need a mast and associated Hardware to mount the mast...but I had that already.

Great little antenna

Written By Troy, Ohio on Tuesday, December 04, 2012

Crutchfield Customer Review (What's this?)

Installed the antenna and aimed between 2 major cities, picked up 43 channels. So long Direc tv. Before this antenna I had 8 channels

Pros: Comes put together, just install mounting hdw. Gets channels over 45 miles away

Cons: None


Written By el, Remo VA on Saturday, February 11, 2012

Crutchfield Customer Review (What's this?)

I used it with my camper on a recent trip to Fla. The camper's Delta amplified antenna only recieved one channel in the state park campground. I mounted the 4221HD antenna on a 12' pool cleaning pole and attached it to the side of the camper and it recieved over 25 channels. I saved the box and fold up the antenna for transport, it is a little big but I just throw the box on the bed during transport. Set up only takes about 5 minutes. The reason for the four star rating, when I first opened the box, the pop rivet holding one end element was not securing the element to the frame. I just drilled out and replaced the pop 3/16 pop rivet, no problem for me but for others you would have to return and replace the antenna.

Pros: Great reception. Could not have watched the Super Bowl without it while camping. Ordered one day and on my door step the next day before the trip with free shipping, that was great service. Free shipping with the the other online A site usually takes about two weeks for me to recieve an item.

Cons: Channel Master needs to inspect their antennas closer for defects prior to packing and shipping.

Free HD TV

Written By W. McGuire, Lexington, Kentucky on Wednesday, March 23, 2011

Crutchfield Customer Review (What's this?)

The Channel Master 4221HD exceeded my expectations in its performance.
I mounted the antenna in my attic, oriented toward the sweet spot for my area
and picked up 16 chrystal clear channels with signal strengths well into the
90's on my signal strength meter. I can't imagine what I would pick up if it was
mounted outside and at a higher elevation. I am sick and tired of paying high
cable bills and having 3/4 's of the channels that are garbage. I am
considering putting an 8 bay antenna outside and picking up more channels
and perhaps some Cincinatti, Ohio stations and dumping cable all toghether. I
would consider a splitter with the attic antenna but that probably would cut the
output to the other tv's in my house in half. I would definitely recommend this
simple but efficient antenna for free UHF reception.

Channel Master 4221 HD

Written By Jesus M. Ramos, Moca, Puerto Rico on Thursday, March 03, 2011

Crutchfield Customer Review (What's this?)

Nice reception for a low budget antenna. I live in a mountainous area were reception is very
poor and I can get a crisp reception for the channels available in my area. Installation is
easy. I recommend this product and Cruthfield service is great and very important hablan

Channel Master 4221HD

Written By Gregory, Ballston Lake, NY on Monday, November 16, 2009

Crutchfield Customer Review (What's this?)

The TV stations 24 miles away are coming in fine with it installed in my attic.

Channel Master 4221HD

Written By Anonymous, Near Madison, Wisc. on Thursday, September 03, 2009

Crutchfield Customer Review (What's this?)

Completely pleased with this antenna. At a distance of 35 miles, across rolling farmland, it picks up all the possible stations from Madison area. Antennaweb rated this distance and topography as "purple.'
The antenna came completely assembled and was ready to put on a mast with minimal preparation.

Channel Master 4221HD

Written By Elizabeth, Rehoboth, Delaware on Sunday, April 19, 2009

Crutchfield Customer Review (What's this?)

Easy purchase with Crutchfield. Package arrived quickly and in perfect condition.

Extremely easy setup. Hooked up to my tv in a couple of minutes and pulled in a station over 50 miles away, much to my great surprise since I had it temporarily propped up on top of a door inside the house with a 6' cable. It brought in questionable stations (from my double bow tie with rabbit ears) crystal clear and added about 50% more stations!

Thrilled I made the purchase, will be getting another one for a friend.

Get everything you’ll need to enjoy your new Channel Master 4221HD

Don't miss out on digital recording convenience because you don't subscribe to cable or satellite. You can record free over-the-air broadcasts with a DVR.
A range of accessories you may need to complete your installation.
Monster Video® 2 Coaxial Cable

Monster Video® 2 Coaxial Cable

Single RF cable with F-type connectors (2 meters, 6.6 ft.)

Item #: 119F2002M


Add to Cart
On-Q Coaxial Cable

On-Q Coaxial Cable

with F-type connectors (24-inch)

Item #: 7176459703

Add to Cart
Channel Master 3211 Double Female F-type Coaxial Coupler

Channel Master 3211 Double Female F-type Coaxial Coupler

Increase cable length without splicing

Item #: 6593211


Monster Cable SV-RG6 RG-6 cable

Monster Cable SV-RG6 RG-6 cable

Double-shielded, in-wall-rated coaxial cable (500-ft. spool)

Item #: 119RG6500

After $200.00 Price Break Add to Cart
Monster Video® Quad-shield RG-6 cable

Monster Video® Quad-shield RG-6 cable

Bulk in-wall-rated coaxial cable (Sold per foot)

Item #: 119MVQCLFT


Channel Master Bulk Coaxial RG-6 Cable

Channel Master Bulk Coaxial RG-6 Cable

(500 feet, black)

Item #: 659RG6500B

Add to Cart
Channel Master CM-7500TB1 DVR+

Channel Master CM-7500TB1 DVR+

Dual-tuner DVR with 1TB hard drive, records over-the-air TV broadcasts

Item #: 659CM7500


Add to Cart
Channel Master 1805

Channel Master 1805

5-foot galvanized antenna mast

Item #: 6591805


Add to Cart
Channel Master 3414

Channel Master 3414

4-output RF distribution amplifier

Item #: 6593414


Add to Cart
Channel Master 3410

Channel Master 3410

Single-output RF distribution amplifier

Item #: 6593410


Add to Cart
Channel Master 7777

Channel Master 7777

High-gain mast-mount UHF/VHF TV antenna preamplifier

Item #: 6597777


Add to Cart
Channel Master 9521A

Channel Master 9521A

Remote control antenna rotor

Item #: 6599521A


After $20.00 Price Break Add to Cart

Questions & Answers Ask the community. Share your knowledge.

1 question already asked

Yes. You will need to go to the hardware store & get some mounts, I used 3 wall mounts and put it high near top of ceiling. You may do it differently as it will depend on the type of wall mounts and your situation. It works great when mounted indoors. [ Brian  Jan 15, 2015 ]
This antenna is to big to mount indoors on a wall of course you don't mention where in the house you want to put it. I have mine in the attic but I am not sure that it will work well up there. I'm still trying to figure out the best place to put it and it looks like outside on top of the house is the next place I'll try. To many things go into how well you pick up signals and it does pickup UHF/VHF, trees and buildings can effect signals and direction of the antenna in relationship to the stations can affect it. You might have to buy a rotor. I got this because I no longer want to give my money to Comcast and Hollywood in the form of outrageous fees. Good luck with your project as we both strike a blow against cable and satellite TV. [ larry  Jan 14, 2015 ]
I first hooked it up in my living room behind the couch. Worked fine for a couple of strong channels in the area. I moved it to the attic and reception was much improved but still struggling to find one direction to point the antenna without have to use a rotor. My goal was to fine one fixed location to use my Channel Master DVR to record programs on many channels at any one time. I ended up mounting it to the chimmey with a channel master amplifer. It was more involved than I orginally had planned, but the results have been very good. I received about 45 channels some as far away as 75 miles. In short you could mount it on the wall if that is your only option. Just know that every location is different and has obsticles to over come when mounting anntennas for great signal strength to your TV. With any antenna the higher up and less walls to go thru the better the signal. I hope this is helpful. [ Brian  Jan 14, 2015 ]
Works good have mounted in attic on brick chimney get stations 50 miles away [ Eric  Jan 14, 2015 ]
JD, I have mine mounted in my attic. I pick up stations 40 miles away but sometime I get an imperfect picture. Mounting on a wall is fine but you need to be able to have the antenna face the best towers. I would recommend the next level up for you and get a signal booster. This site has a wealth of information on where to find your towers and what type of antenna you need. Google antennaweb dot org for a great source of information. [ John  Jan 14, 2015 ]
I had this antenna mounted in my attic with a rotor and moved it outside due to some reception problems. This did not cure the problem but I think it is because of a very large tree between the antenna and the direction of most stations. As long as it is not windy it is OK. I use it with the amplifier. I have 100 ft of cable from the antenna to the amplifier and two TVs off of the amp. I did have an "omni directional" antenna with poor reception until I put a rotor on it. The Channel Master is an improvement. I am about 25 miles south of Buffalo NY and get all the UHF and VHF stations just fine. [ RICHARD P  Jan 17, 2015 ]
The antenna is quite sensitive to direction and location. If you want maximum performance it would be best to walk around with it connected to your TV and decide which location would be most suitable. This antenna would double your present signal strength and make marginal signals very acceptable. [ Nolan  Jan 15, 2015 ]
This is more of a UHF antenna than a VHF antenna, but mine did pick up the one VHF channel I cared about that was ~22 miles from me. As for your zipcode, I would check tvfool or antennaweb to see what it says. If you search for BigT on the dtvusaforum you will find the thread that led me to buy this antenna. It also includes some info on what to do if you need more help with VHF, though I did not have to worry about that as this antenna received everything I was looking for. [ Thomas  Jan 15, 2015 ]

Searches related to the Channel Master 4221HD Mid-range outdoor rooftop HDTV antenna