Denny's TV Antenna Sales

Helping America Watch Free TV since 1988. Mon. - Fri  9am - 4pm.  EST. Call 989 875 4902

Satisfaction guarantee
Most popular pages
ONLINE STORE
100% Satisfaction Guaranteed
Customer Service
TV antennas
Preamplifier's
Distribution Amplifiers
Mounts & Hardware
Custom Coaxial Cable & Accessories
Rotors - Rotator
TV Antenna Recommendations
About us
Location - Map
Guide to TV antenna installation

How to Use A Voltage Block with your TV Antenna Mast Mounted Preamplifier


Voltage Block

>>>>>>>Voltage Block                                                      Buy Now Voltage Block


A Voltage block is used in conjunction with mast a mounted preamplifier and a signal splitter when it's not convenient to have the signal splitter on the TV side of the preamplifier power injector.

Mast mounted preamplifier's are comprised of two separate parts. The mast mounted portion where the amplification takes place and the indoor power injector that supplies the electricity for the operation of the mast mounted unit. To do this the power injector supplies low voltage electricity into the down lead coax cable that's coming down from the mast mounted preamplifier near the antenna. A signal splitter installed on the coax cable down lead between the indoor power injector and the mast mounted amplifier can interrupt the electricity and cause the preamplifier to malfunction.

When to use a voltage block.
When a signal splitter is located on the coax cable down lead between the indoor power injector and the mast mounted preamplifier. Many times a signal splitter is located in the attic or outside on the side of the home where an electrical outlet for the power injector is not available. Rather then rewire the entire system voltage blocks can be used at the signal splitter as shown below.

When not to use a voltage block.
When the coax cable down lead runs directly from the mast mounted preamplifier to the indoor power injector and the signal splitter is located on the TV side of the power injector.


Winegard mast mounted preamplifier Winegard power injector and transformer

Winegard Mast Mounted Preamplifier

Winegard Indoor Power Injector Unit
and electrical transformer


preamplifier power injector

The preamplifier power injector above can be located
near one of the TV's. The TV signals feed into the ANT
port and back out of the TV port to the TV at that location.


2 way signal splitter and voltage block configuration

2 way signal splitter and voltage block configuration
The power injector may be located near the TV and a short
piece of coax cable may be used to connect to the TV
at that location.


3 way signal splitter and voltage block configuration

3 way signals splitter and voltage block configuration
The power injector may be located near the TV and a short
piece of coax cable may be used to connect to the TV
at that location.


4 way signal splitter and voltage block configuration

4 way signal splitter and voltage block configuration.
The power injector may be located near the TV and a short
piece of coax cable may be used to connect to the TV
at that location.

 

 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>Example: 4 way signal splitter configuration

Voltage block use

 

 


6 and 8 way signal splitters are configured in the same manner. Install a voltage block on each output port that does not lead to the power injector. A 6 way splitter will need 5 voltage blocks and an 8 way will need 7. 

Buy Now Voltage Block

Denny's TV Antenna Source Home                          ↑ TOP ↑