TV Fool  

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

Notices

Reply
 
Thread Tools
Old 10-Oct-2020, 11:26 PM   #1
ERINLAINE
Junior Member
 
Join Date: Mar 2014
Posts: 1
Basic signal amplifier splitter question

I recently bought a Channel Master Ultra Mini 4. It's a signal amplifier and 4 port splitter. If I have 3 TVs hooked up to this splitter, but only one powered on at a time, am I getting signal loss from the TVs turned off? Any signal loss from the unused port? Thanks.
ERINLAINE is offline   Reply With Quote
Old 11-Oct-2020, 2:47 AM   #2
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,667
Quote:
Originally Posted by ERINLAINE View Post
I recently bought a Channel Master Ultra Mini 4. It's a signal amplifier and 4 port splitter. If I have 3 TVs hooked up to this splitter, but only one powered on at a time, am I getting signal loss from the TVs turned off? Any signal loss from the unused port? Thanks.
Hello, ERINLAINE

The signals at each of the four outputs will be approx 8 dB stronger than when they entered the distribution amp, whether a TV is off or on.

If one of the output ports isn't being used, there might be a slight unbalance as there is with a 4-way passive splitter. Putting a 75 ohm termination resistor on the unused port will restore balance, but it isn't critical.

That is why good satellite splitters come with a termination resistor for each port.

If you have a 3-way split with one run much longer, this is an efficient way to do it:

Attached Images
File Type: jpg Efficient3waysplit2_6.jpg (131.4 KB, 81 views)
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html

Last edited by rabbit73; 11-Oct-2020 at 3:30 AM.
rabbit73 is offline   Reply With Quote
Reply

Bookmarks

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


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 2:46 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC