TV Fool  

Go Back   TV Fool > Over The Air Services > Special Topics > Reception Devices

Notices

Reply
 
Thread Tools
Old 6-Dec-2011, 7:19 AM   #1
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,680
Another Alternative to an Antenna Rotator or Combiner

If you have stations of interest grouped together so that you can aim one antenna and get them all, consider yourself fortunate. Most OTA TV viewers have to find a way to receive signals that arrive from two or more directions.

Traditional rotators have been a common solution but a source of frustration for the viewers who don't have control of antenna aim. Some TVs and set top tuners and converters lack the ability to add channels manually and also may lack the ability to add channels through scanning. Tuners with this limitation require a full rescan each time the antenna is rotated... quite time consuming and frustrating when used with an antenna needing to be rotated.

A/B switches can be used to select between two antenna leads. There are manual and remote controlled products to choose from. This solution will be problematic for tuners lacking manual-add and add-scan functionality.

In some cases a tuned antenna combiner may be an option. The Channel Master Join-Tenna may still be available through Warren Electronics who still stock a limited selection of UHF and VHF product. The tuned antenna combiner makes the adjacent channels unusable. For example, if you used an CH-9 Join-Tenna to add a lone signal to the main antenna feed, CH-8 and CH-10 would be blocked by the filters in the combiner. When many UHF signals are involved, it's less likely that a combination of tuned combiners would provide a satisfactory solution. http://www.tinlee.com/ may be able to provide a workable solution, their website does not list pricing information but invites inquiry from individual customers.

In addition to the standard definition DTV converters on the market, there are several full HD resolution tuners such as the Channel Master CM7400 and CM7001 as well as a tuner by Centronix which offer HDMI interface to your monitor or AV receiver. The Winegard RC-1010 is an HD capable tuner but it lacks HDMI output. Western Digital and Epivision have products worth considering also. (edit 12-21-2013) the HomeWorx-150PVR appears to be a very well priced option that appears to be well reviewed.

So here's the alternative... Most TVs, analog and digital, have video and audio inputs, many new digital TVs have HDMI, some even have multiple inputs. You can opt to place a SD or HD capable tuner next to the TV, connecting it to the TV through the extra input port. Now the TV has a second tuner which can be used to terminate a secondary antenna aimed as needed. With a multiple input TV, this can be expanded to include a third or even forth antenna.
Attached Files
File Type: pdf STB Tuner instead of A-B switch.pdf (22.0 KB, 1874 views)
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

(Please direct account activation inquiries to 'admin')

Last edited by GroundUrMast; 21-Dec-2013 at 8:47 AM. Reason: Added refference to HW-150PVR
GroundUrMast is offline   Reply With Quote
Old 7-Dec-2011, 8:46 PM   #2
Dave Loudin
Senior Member
 
Join Date: Jan 2010
Location: King George, VA
Posts: 659
Hey, that's a timely tip! I just bought a TV with an integrated tuner after years of using a Samsung external tuner. I've been struggling with how to improve Richmond reception without clobbering DC. Now I have a great excuse to build something!
Dave Loudin is offline   Reply With Quote
Old 8-Mar-2012, 8:55 PM   #3
ghz24
Member
 
Join Date: May 2011
Location: Central Illinois U.S.
Posts: 71
2 Channels

Most of the tuner boxes have a switch to select between channel 3 or 4 for the boxes output, so you could put one box on 3 and another on 4 and combine the signals with a splitter/combiner into one coax to the TV.

The boxes I use have RCA out as well and their remote "input" button cycles through channel 3 ,4, RCA 1 and RCA 2 on my TV.

This gives me room for 3 separate antennas/tuners selectable from the remote (my dvd uses one set of the TVs RCA inputs)

I went to this partly because even an A/B switch before the tuner kills my weakest signals.

Even leaving off the RCA for the oldest TVs One could combine 4 antennas with 4 tuner boxes, 2 combiners, and one A/B switch just before the TV.
ghz24 is offline   Reply With Quote
Old 18-Nov-2013, 6:49 PM   #4
GroundUrMast
Moderator
 
GroundUrMast's Avatar
 
Join Date: Oct 2010
Location: Greater Seattle Area
Posts: 4,680
The HomeWorX-150 is another option for an HD capable STB tuner + PVR/DVR.
__________________
If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

(Please direct account activation inquiries to 'admin')
GroundUrMast is offline   Reply With Quote
Reply

Bookmarks

Go Back   TV Fool > Over The Air Services > Special Topics > Reception Devices


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off




All times are GMT. The time now is 8:23 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC