JOINtenna Antenna Signal Combiner
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Price: $39.00

Description Technical Specifications FAQ's & Support Docs

The Channel Master JOINtenna combines coaxial inputs from two individual outdoor TV antennas allowing for distribution of the two antennas on a single coaxial cable.

Channel Master JOINtenna is designed to simplify installations in which a user desires to receive television signals from two different transmitter locations/directions without the use of an Antenna Rotator. The JOINtenna is built for outdoor applications with an all-weather housing and has two coaxial inputs and a single coaxial output. The most common application for the JOINtenna is in the several locations across the United States where television reception is available from two DMA’s (Designated Market Area) otherwise known as “Local Markets”.

Typically most antennas are directional in nature making it very difficult if not impossible to receive signals from both locations with a single antenna. Channel Master's Antenna Rotator has served as a solution to this problem for many years and while it allows the user to only use one antenna, the installation and user experience can be more complicated. If looking to avoid the installation of an antenna rotator by using two antennas, the JOINtenna is the answer. Simply connect the output of two antennas to the two inputs on the JOINtenna and then connect the JOINtenna output to the residential/commercial coaxial cable network to be distributed to a single or multiple televisions.

In addition to it's antenna “Joining” capabilities, the JOINtenna is also equipped with a built-in LTE filter to eliminate cellular LTE signals from interfering with your TV signals.

What’s Included

Instruction sheet
(2) Outdoor mounting zip ties
(2) Mounting screws


Combines 2 UHF/VHF antennas
All-weather housing
Low-insertion loss
Built-in LTE Filter
Easy install

90 days Limited Warranty Limited Warranty

parts and labor 90 days of parts and labor
support 90 days of support through phone, online chat and/or e-mail
Average Customer Review: 4.5 of 5 Total Reviews: 25 Write a review.

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  0 of 0 people found the following review helpful:
JOINtenna works well October 11, 2018
Reviewer: Anonymous Person from Baltimore, MD  
With Baltimore (4 miles) and Washington DC (40 miles) in opposite directions and with one antenna, DC stations were essentially unavailable.  Aiming a second antenna at DC and combining through the JOINtenna gives me over 25 DC channels.  I earlier had tried using a passive splitter as a combiner but got nothing.  JOINtenna is well worth the money.

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  1 of 1 people found the following review helpful:
Immediate difference. May 22, 2018
Reviewer: Gary from Cincinnati, OH  
Hooked up two antennas and ran a scan. Saw a immediate difference especially on channels such as ME TV and Heroes and Icons that show older programs, there was a marked improvement in clarity and quality. I have had no problems with the two antennas working together. Very pleased with this product.

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  0 of 0 people found the following review helpful:
CM-0500 March 19, 2018
Reviewer: TR Larremore from Hattiesburg, MS  
Very pleased with this product.  Combined a stacked CM-4221 and CM-4228 @115 deg. apart. Placed it in a shielded pole mount enclosure w/14 ft of RG-6 Quad feeding from each antenna, it works like a charm. LTE filter seems to be keeping the 4G cellular interference nominal.

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  0 of 0 people found the following review helpful:
Almost there March 13, 2018
Reviewer: James from Bootheel.Mo  
Still workinh on getting my dual antenna setup right.
I realy like this product. But my 1st 2 attempts havnt gotten very far at gettin my results i hope for. Not giving up though so im not gonna give a bad review and only gave 4 stars because i havnt reached its full potental yet. Only wish the way mount to a mast pole was old style clamp. Not tape or tie on

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  0 of 0 people found the following review helpful:
Best by far December 5, 2017
Reviewer: SamJam from Rural  
This amplifier is by far the best quality on the market today. I like the switchable amplification, it lets me test out different antennas and locations. The LTE filter eliminated pixelization on my weak channels. I know cell towers are everywhere, I didn’t know they affected TV reception so much. Fine product Channelmaster, you do good work.

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